VARNISHING INSTALLATION

专利摘要:
varnishing plant and process for operating a varnishing plant. the present invention aims to create a varnishing plant for varnishing workpieces, which is compactly formed and enables a safe separation of varnish spray surplus from a raw gas stream, . to this end, the varnishing installation comprises the following elements: a varnishing booth, in which workpieces can be varnished with varnish, a conveyor device, by means of which workpieces can be transported in a transport direction through of the varnishing booth, a separation and/or filtration facility, for purification of a raw gas stream, which is leaving the varnishing booth, and which has received excess spraying of varnish in the varnishing booth, and the separation facility and/or filtration comprises at least one filtration device for separating the lacquer spray surplus from the raw gas stream; and at least one pure gas line for a pure gas stream, which is obtainable by purifying the raw gas stream by means of the at least one filtering device.
公开号:BR112014001550B1
申请号:R112014001550-3
申请日:2012-05-03
公开日:2021-08-03
发明作者:Sebastian Holler；Dietmar Wieland；Jan Scheerer；Jens Holzheimer；Michael Baitinger；Wolfgang Tobisch
申请人:Dürr Systems GmbH；
IPC主号:

专利说明:

[0001] The present invention relates to a varnishing installation for varnishing workpieces.
[0002] For example, from WO 2010/069407 A1 a varnishing plant is known, which comprises a separation and/or filtration plant, which is arranged below the varnishing booth.
[0003] The present invention is based on the task of making available a varnishing installation of the type mentioned initially, which is compactly formed and enables a safe separation of varnish spray surplus from a raw gas stream.
[0004] This task is solved according to the invention by the fact that the varnishing installation comprises a varnishing booth, in which workpieces can be varnished with varnish, and a conveyor device (workpiece), by means of from which the workpieces can be transported in a transport direction through the varnishing booth. In addition, the varnishing installation comprises a separation and/or filtration installation, for purification of a raw gas stream, which is leaving the varnishing booth, and which has received excess spraying of varnish in the varnishing booth. separation and/or filtration installation comprising at least one filtering device for separating the varnish spray surplus from the raw gas stream; and at least one pure gas line for a pure gas stream, which is obtainable by purifying the raw gas stream by means of the at least one filtering device.
[0005] A separation and/or filtration installation is referred to, hereinafter, in a simplified manner, as "filtering installation".
[0006] In an embodiment of the invention, it is provided that at least one pure gas line is arranged, at least in parts, within an external contour of at least one filtering device.
[0007] By an external contour of the filtering device, in this description and in the appended claims, the external limitation of the region of space that, when each cross section of the filtering device, taken perpendicularly to the direction of transport, is moved along from the direction of transport to the ends of the varnishing installation, which is lightly passed through at least one of these cross sections.
[0008] Particularly, when at least one pure gas line is arranged, at least in parts, is arranged within an outer contour of at least one filtering device, the filtering installation can be compactly formed. In particular, in this case, provision can be made that no pure gas lines protrude beyond the lateral boundary walls of the filtration installation.
[0009] The movement of a cross section along the transport direction for determining the outer contour occurs in such a way that the cross section is always aligned perpendicularly to the local transport direction. In a non-constant transport direction (on a curved transport path), a cross section is consequently rotated during movement towards the ends of the varnishing installation in a manner corresponding to the course of the transport direction in each local case.
[0010] Particularly, the pure gas line is therefore disposed, at least in parts, within a region of space, which in an imaginary extension of limiting walls of the filtering device extended at least approximately parallel to the direction of transport, is limited by these boundary walls.
[0011] The at least one pure gas line is therefore preferably arranged, at least in parts, within a horizontal projection of at least one filtering device along the transport direction.
[0012] Preferably, at least one outer boundary wall spaced from a longitudinal vertical center plane of the varnishing booth, from at least one pure gas line is spaced an equal distance or a smaller distance from the longitudinal vertical center plane of the booth than an external boundary wall spaced from the central longitudinal vertical plane of the filtering device.
[0013] Preferably, a stream of pure gas can be guided at least approximately vertically downwards along at least one filtering device by means of at least one line of pure gas, aligned at least approximately, vertically.
[0014] In particular, when the filtration installation comprises several filter devices arranged successively in the transport direction, it can be provided that at least one line of pure gas is arranged between two filter devices arranged successively in the transport direction.
[0015] At least one filtering device is preferably formed as a regenerative filtering device.
[0016] By a regenerative filtering device is to be understood a separation device for separating impurities from a gas stream guided through the varnishing booth, particularly for separating varnish spray surplus from a gas stream containing particles of overspray, in which separated impurities can be purified without having to change the filter elements of the filtration device.
[0017] As a regenerative filtering device (filtering installation), it is also provided, in particular, a filtering device, which has one or more dry filter elements and/or one or more dry separation devices, in which a purification of a gas stream takes place substantially without adding a liquid to the filter elements. Independently of this, subsequent purification steps can be envisaged or arranged upstream, on the other hand, under the use of solvents or liquid purification agents (under normal conditions).
[0018] In a regenerative filtering device, it can also be provided that the filtering device comprises at least one filter element, which in the filtering operation is provided with a blocking layer and/or a protective layer, which comprises filter aid material, eg mineral flour.
[0019] Thereby, in the filtering operation of the filtering device, it can be prevented that the filter element becomes clogged with impurities from the gas stream fed to the filtering device. By cleaning the blocking layer or protective layer of the filter element of the filtering device, a particularly simple regeneration of the filter element can take place, which subsequently by applying a fresh blocking layer or a protective layer fresh, can be used again.
[0020] As a varnish, particularly powder varnish or fluid varnish is of interest.
[0021] With the term "fluid varnish", in this case is designated - unlike the term "powder varnish" - a varnish with a fluid consistency, from liquid to pasty (for example, in the case of a PVC plastisol). The term "fluid varnish" particularly comprises the terms "liquid varnish" and "wet varnish".
[0022] In the use of fluid varnish, the varnish spray surplus of the coating booth is therefore a fluid varnish spray surplus, in the use of wet varnish, a wet varnish spray surplus.
[0023] In an embodiment of the invention, it is provided that the filtration installation comprises at least one raw gas well, which with respect to a horizontal direction extending perpendicularly to the direction of transport, is disposed substantially in the center, below the varnishing.
[0024] In this case, it can be provided, in particular, that an inlet opening of the raw gas well, with respect to a horizontal direction extended perpendicularly to the direction of transport, is arranged substantially in the center, below the varnishing booth.
[0025] The raw gas well is preferably used to feed the gas stream from the paint booth to at least one filter device of the filter installation.
[0026] Preferably, the raw gas well, in a filtration operation of the filtration plant, in which the gas stream originating from the varnishing booth is purified, is permeated by a gas stream with a vertically moving component, particularly, in substantially vertical direction.
[0027] A lower end of the raw gas well is preferably adjacent to an inlet channel of at least one filtration device of the filtration plant.
[0028] It may be favorable when at least two filtering devices, preferably all filtering devices of the filtering installation, are arranged on the same side of the raw gas well, with respect to a central longitudinal plane of the varnishing booth.
[0029] It may be advantageous when the raw gas well extends from above at least one filter element of the at least one filtering device and/or even below at least one filter element of the at least one filtering device.
[0030] In one embodiment of the invention, it is provided that the filtration installation comprises at least one pure gas line, which, at least in part, is spatially guided below a raw gas well, particularly below the raw gas well. . Thereby, a stream of raw gas can be guided in a particularly simple way from one side of the vertical longitudinal center plane of the paint booth to the opposite side. In particular, at least one pure gas line can cross the raw gas well without collision.
[0031] Alternatively or in addition to this, it can be provided that at least one pure gas line is spatially guided, at least in parts, above a raw gas well, particularly above the raw gas well, and therefore crosses the same, preferably above it.
[0032] Preferably, at least one pure gas line extends below the raw gas well and, in that case, preferably substantially horizontally and/or transversely, particularly substantially perpendicularly, to the direction of transport.
[0033] Furthermore, it can be provided that at least one line of pure gas is arranged, at least in parts, within a vertical projection of at least one filtering device below and/or above the at least one filtering device.
[0034] It may be favorable when at least one line of pure gas is arranged, at least in parts, below, particularly below, at least one device for introducing filtering aid material, at least one container for receiving auxiliary material filter and/or at least one housing of at least one filter device.
[0035] It may be foreseen that the filtration installation comprises a pure gas line, which crosses and/or crosses a raw gas well.
[0036] The pure gas line comprises, in that case, a part, which is arranged inside the raw gas well, and may comprise one or more other parts, which are arranged outside the raw gas well.
[0037] In particular, it can be provided that the filtration installation comprises a pure gas line, which is arranged in the region of the upper end of the raw gas well and passes through it.
[0038] Therefore, in the operation of the varnishing plant, the pure gas line is preferably surrounded by raw gas. By means of the pure gas line, the stream of pure gas can be guided, preferably from one side of the vertical longitudinal center plane of the paint booth to the opposite side.
[0039] But, it can also be provided that at least one pure gas line is arranged at another point, between the lower end and the upper end of the raw gas well or above the raw gas well, preferably below the background of the varnishing booth.
[0040] The pure gas line preferably extends substantially in the horizontal direction and/or transversely, particularly substantially perpendicularly, to the direction of transport.
[0041] It can be advantageous when the filtration installation comprises at least one collecting channel for pure gas, in which at least two lines of pure gas exit the filtration installation. In this way, the pure gas can be discharged in a particularly simple way, with only one line, which is attached downstream to the pure gas collecting channel.
[0042] Preferably, at least one collecting channel of pure gas extends at least approximately parallel to the direction of transport.
[0043] In an embodiment of the invention, it is provided that at least one collecting channel of pure gas, on the one hand, and at least two filtration devices of the filtration installation, on the other hand, are arranged on opposite sides of the installation. of filtration with respect to a longitudinal, vertical central plane of the coating booth.
[0044] In particular, it can be provided that at least one pure gas collecting channel of the filtration installation is divided along the transport direction, in particular by means of a dividing wall extending along the transport direction, in two regions, namely an upstream region and a downstream region.
[0045] At least two lines of pure gas exit, preferably, in the upstream region, which, therefore, forms an exit region of the two regions of the collecting channel of pure gas.
[0046] Preferably, already in the exit region of the at least two regions of the pure gas collecting channel there is a mixture of the pure gas streams fed by means of the at least two pure gas lines to the pure gas collecting channel.
[0047] In a configuration of the invention, it is provided that the region of the pure gas collecting channel is a discharge region of the two regions of the pure gas collecting channel, which serves for the discharge of pure gas from the filtration installation and, for example , is in fluid communication with an ambient air conduction device, for the (new) supply of the pure gas stream to the varnishing booth and/or with an exhaust air discharge device, for removal of the raw gas stream of the filtration installation.
[0048] The output region of the pure gas collector channel is preferably in fluid communication with the discharge region of the pure gas collector channel by means of at least one fan. In this way, the gas arranged in the outlet region of the pure gas collecting channel can be fed particularly simply to the discharge region of the pure gas collecting channel.
[0049] It may be advantageous when the outlet region of the pure gas collecting channel is arranged, at least in parts, preferably completely, below, particularly below, the discharge region of the pure gas collecting channel.
[0050] In an embodiment of the invention, it is provided that at least one fan (blower) is connected directly or indirectly via a gas channel to a dividing wall of at least one pure gas collecting channel.
[0051] It can be advantageous when at least one fan is arranged on a base on which the varnishing installation is erected in an assembled state, and a gas channel is provided for connecting the fan to the partition wall.
[0052] Furthermore, it can be provided that at least one fan is provided with a receiving device (frame), whereby the receiving device is arranged on the floor and the at least one fan is arranged in, in particular, the receiving device. Preferably, a gas channel is provided for connecting the fan to the partition wall.
[0053] It may be favorable when at least one fan is arranged on a partition wall of at least one pure gas collecting channel and/or is integrated in the partition wall. In this way, an additional gas channel for connecting the fan to the partition wall may be unnecessary.
[0054] In another embodiment of the invention, it is provided that at least one fan is arranged above, particularly on a receiving device, which is arranged, particularly on a dividing wall of a pure gas collecting channel. at least one gas channel is provided for connecting the at least one fan with the partition wall.
[0055] The filtration installation preferably comprises at least one conditioning device, for conditioning at least one gas stream, particularly at least one pure gas stream. In particular, provision can be made for the conditioning device to be formed as a heating device, a cooling device, a wetting device and/or a dehydrating device.
[0056] At least one conditioning device is arranged in a pure gas collection channel of the filtration installation or, with respect to a current direction of the gas stream, preferably of the pure gas stream, before a collection channel of pure gas from the filtration plant.
[0057] For driving the gas stream, the filtration installation preferably comprises at least one fan, for example at least one axial fan.
[0058] The at least one fan can be arranged, for example, in the pure gas line and therefore with respect to a current direction of the gas stream, before a pure gas collecting channel of the filtration installation, in the which exits to at least one line of pure gas.
[0059] Alternatively or in addition to this, it can be provided that at least one fan is arranged, with respect to the current direction of the gas stream, downstream of the pure gas line and/or the pure gas collecting channel.
[0060] At least one fan can comprise a movable wheel, which can be driven by means of a drive.
[0061] An axis of rotation of the movable fan wheel can be aligned, substantially horizontally and transversely, preferably substantially perpendicularly, to a longitudinal direction of the varnishing booth and/or to a transport direction of the varnishing installation.
[0062] The drive of the mobile wheel can be arranged laterally to the side of the fan, in a transverse direction directed perpendicularly to a longitudinal direction of the varnishing booth and/or perpendicularly to a transport direction, particularly laterally to the side of the movable wheel.
[0063] The movable wheel drive can be arranged at least partially, preferably substantially completely, outside the base of the varnishing booth or outside a vertical projection of the base of the varnishing booth.
[0064] The rotation axis of the movable fan wheel, however, can also be aligned in another way, for example, substantially horizontally and substantially parallel to a longitudinal direction of the varnishing booth and/or to a transport direction. Furthermore, the axis of rotation of the movable wheel can also be substantially vertically aligned.
[0065] The drive of the movable wheel can be arranged in a longitudinal direction of the varnishing booth and/or in a transport direction, before or after the fan.
[0066] The movable wheel drive can also be arranged vertically below or above the fan.
[0067] The movable wheel drive may be arranged at least partially, preferably substantially completely, within the base of the varnishing booth or within a vertical projection of the base of the varnishing booth.
[0068] It may be favorable when the filtration installation comprises at least one pure gas line, at least one fan, at least one conditioning device and/or at least one pure gas collector channel, matter disposed within a vertical projection from the paint booth, below the paint booth.
[0069] The filtration installation preferably comprises a filtration module, comprising at least a part of at least one raw gas well, at least one filtration device, at least one pure gas line, at least one conditioning device, at least a part of at least one collecting channel of pure gas and/or at least one fan.
[0070] A filtration module is, in this case, a constructive unit, comprising the aforementioned components, at least pre-assembled, preferably in finished assembly, so that the filtration module can be pre-assembled or finished in a location other than the installation location of the varnishing booth and, after transport to the installation location, it can be connected with little assembly effort with the remaining components of the varnishing installation.
[0071] The filtration installation preferably comprises at least two filtration modules.
[0072] Particularly, when the filtration module comprises at least a part of at least one collecting channel of pure gas and/or of at least one raw gas well, by a queuing of the filtration modules in the transport direction of the conveyor device of the varnishing installation and by a fluid-tight connection of the individual parts of the at least one pure gas collecting channel or the at least one raw gas well with each other, the at least one pure gas collecting channel or o at least one raw gas well.
[0073] It may be advantageous when at least one safety filter (surveillance filter, emergency filter) is provided in at least one pure gas line and/or in the pure gas collecting channel, in case of damage to a filtering device, for example, from a damage to a filter element of a filtering device, preventing an undesirable penetration of filtering aid material and/or paint overspray in the regions of the filtration plant to be kept clean.
[0074] The present invention further relates to a filtration module for use in a filtration installation of a varnishing installation, wherein the filtration module comprises at least one filtration device, at least one gas line pure, at least one conditioning device, at least a part of at least one pure gas collecting channel and/or at least one fan.
[0075] The present invention is based on the other task of providing a varnishing installation, which enables a particularly safe separation of varnish spray surplus from a raw gas stream.
[0076] This task is solved according to the invention by the fact that in the varnishing installation at least one filtering device for separating varnish overspray from a raw gas stream containing particles of varnish overspray, understands:
[0077] - a housing, which borders a raw gas chamber of the filtering device and in which at least one filter element of the filtering device is arranged;
[0078] - at least one inlet channel for inputting the raw gas stream into the raw gas chamber of the filtering device; and
[0079] - a device for introducing filtering aid material, for introducing filtering aid material into the raw gas stream.
[0080] Because at least one device for introducing filtering aid material is provided for introducing filtering aid material into the raw gas stream, filtering aid material can be fed particularly simply to the raw gas stream, so that a safe and efficient separation of paint overspray from the raw gas stream is possible. Particularly, with this, a compressed air device for swirling filter aid material can be dispensed with.
[0081] At least one inlet channel of a filtering device is preferably formed such that the raw gas stream can be guided at an acute angle to the horizontal to the raw gas chamber.
[0082] It may be advantageous when at least one filter aid material introducing device comprises a treatment device, for the mechanical treatment of filter aid material and/or a mixture of filter aid material and particles of overspray .
[0083] By a "mechanical treatment" of filtering aid material or a mixture of filtering aid material and varnish spray surplus particles, it is to be understood a treatment such that the treatment device comes into direct contact with the material filter aid or with the mixture of filter aid material and lacquer spray surplus particles, for example to move, transport, mix, grind and/or decompact the same.
[0084] It may be advantageous when the treatment device is formed as a mixing device.
[0085] In particular, it can be provided that a mixing device serves to mix filter aid material, which is loaded with varnish overspray, and filter aid material which is not loaded or loaded in small quantity with overspray of varnish.
[0086] At least one treatment device, for mechanical treatment, preferably comprises at least one treatment element, which is formed, for example, as a propeller and is swivelable around an axis.
[0087] At least one treatment device preferably serves for disintegration of agglomerates of filter aid material and varnish spray surplus.
[0088] At least one treatment device comprises, preferably at least one decompacting element, for decompacting filter aid material. In particular, in that case, provision can be made for at least one decompacting element to be formed as a propeller and/or as a spade.
[0089] At least one decompacting element is provided, in particular, to put the filter aid material (or the mixture of filter aid material and varnish spray surplus particles) in such an internal movement, that a proportion more than 10% of the particles (filtering auxiliary material and/or varnish spray surplus; with respect to the total mass, the number of particles and/or the total volume) relative to adjacently situated particles are moved. This results in decompacting, mixing, transporting and/or crushing. In the latter, at least one decompacting element works with at least one counterpiece, the at least one decompacting element and the at least one counterpiece having, in normal operation, preferably, different speeds and, thus, the auxiliary material for filtration can be mechanically worked between the at least one decompacting element and the at least one counter part.
[0090] At least one treatment device preferably comprises at least one conveyor element, for transporting filtering aid material, for example, in a direction parallel to the transport direction of the conveyor device of the varnishing plant.
[0091] It can further be provided that at least one treatment device comprises at least one treatment element, rotatable around an axis of rotation, for example, extended horizontally, particularly substantially parallel to the direction of transport, which is formed , for example, as an unpacking element, mixing element and/or conveyor element.
[0092] A raw gas stream fed to the raw gas chamber is preferably oriented in such a way that it enters, particularly substantially perpendicularly, to the axis of rotation of the treatment device, into the raw gas chamber. In particular, provision can be made for the raw gas stream to be directed substantially perpendicular to the axis of rotation of the at least one treatment device.
[0093] It may be advantageous when at least one treatment device cooperates with a withdrawal device of the filtering device, for example with a withdrawal opening for withdrawing filtration aid material from the raw gas chamber of the device. In particular, provision can be made for the treatment device to make it possible to transport filter aid material or a mixture of filter aid material and particles of paint overspray to a withdrawal opening.
[0094] Alternatively or in addition to this, it can be provided that by means of at least one treatment device, a uniform distribution of filter aid material or a mixture of filter aid material and particles of excess spray can be obtained. varnish in a filtration aid material receiving container of the filtration device.
[0095] Preferably, at least one filtering aid material introducing device is arranged in a filtering aid material receiving container of at least one filtering device.
[0096] The present invention relates to a varnishing installation, which comprises a filtration installation, in which at least one current conducting device is provided for influencing the current of a raw gas stream.
[0097] In this regard, the invention is based on the task of providing a varnishing installation, comprising a filtration installation, which enables a safe separation of varnish spray surplus from a raw gas stream.
[0098] This task is solved according to the invention by the fact that at least one current-carrying device comprises at least one element to influence the current.
[0099] As the same, a raw gas stream can be influenced in a particularly advantageous way, to be able to reliably separate lacquer spray surplus from the raw gas stream.
[0100] In the sense of a simpler reference, an "element to influence current" is hereinafter referred to as "current element";
[0101] In an embodiment of the invention, it is provided that at least one device for introducing filtering aid material comprises a current conducting device for influencing the raw gas stream, which comprises at least one current element.
[0102] It may be advantageous when at least one current-carrying device comprises at least one variable current element with regard to configuration and/or arrangement and/or alignment. Thereby, a raw gas stream can be used for decompacting and/or swirling filter aid material and therefore for introducing filter aid material into the raw gas stream.
[0103] In particular, it can be provided that at least one variable current element is formed as a guide plate arranged in an adjustable and/or displaceable way.
[0104] It may be advantageous when at least one current-carrying device is arranged, at least partially, in at least one input channel of the filtering device. In particular, provision can be made for the at least one current-carrying device to form a limitation on the input channel.
[0105] At least one current element of at least one current-carrying device is preferably variable, with regard to configuration and/or arrangement and/or alignment. In particular, it can be provided that at least one current element is variable, in and/or after a filtering operation, in which a raw gas stream can be purified by means of a filtering device, as regards configuration and/or arrangement and/or alignment. Furthermore, provision can be made for at least one current element to be variable, in and/or after a cleaning operation of the filtering device, in which at least one filter element of the filtering device can be cleaned, i.e. released of auxiliary material for filtration and excess spraying of adherent varnish, as regards the configuration and/or arrangement and/or alignment.
[0106] At least one current element of an immense current-carrying device is also pre-adjustable, preferably before the filtering device starts operating and/or during an operation, particularly a filtering operation , of the filtering device is automatically adjustable and particularly self-adjusting.
[0107] It can be favorable when at least one current element of at least one current-carrying device is automatically adaptable to different current states, in the operation of the filtering device, particularly, in the filtering operation of the filtering device.
[0108] It may be advantageous when at least one variable current element of at least one current-carrying device adapts, for reasons of the type of construction, particularly by its own weight, automatically to different current states in the operation of the device filtration, particularly, to a bulk stream of the raw gas stream.
[0109] For example, it can be provided that the mass of at least one current element is selected in such a way that a variable raw gas stream, with regard to its volume stream, automatically results in an opening cross section variable of the inlet channel in a direction perpendicular to the current direction of the raw gas stream in the inlet channel.
[0110] At least one current element of the at least one current conducting device is preferably formed in such a way that an angle under which the raw gas stream enters the raw gas chamber is adjustable by means of of at least one current element.
[0111] It may be advantageous when by means of at least one current element of at least one current conducting device, the velocity of the raw gas stream entering the raw gas chamber is influenced, particularly, increased. By the velocity of a gas stream, the mean velocity of the gas stream must be understood in this case, and local velocity differences, which result, for example, from turbulence, are disregarded.
[0112] In particular, it can be provided, in this case, that by means of at least one current element of at least one current conducting device the velocity of the raw gas stream in at least one inlet channel of at least one device The filtration rate is influenced, particularly increased, in relation to the velocity of the raw gas stream in at least one raw gas well of the filtration installation.
[0113] It may be advantageous when by means of a current conducting device and/or by means of an inlet channel of at least one filtering device, a raw gas stream guided by at least one raw gas well, is spaced apart or offset asymmetrically with respect to the vertical longitudinal center plane of the paint booth, particularly only to one side of the vertical longitudinal center plane of the paint booth.
[0114] It may be advantageous when, by means of at least one current conducting device, the introduced raw gas stream is directed directly into at least one filtering auxiliary material receiving container of at least one filtering device. It may be advantageous when therewith, filter aid material from the raw gas stream is swirled and/or received.
[0115] The raw gas stream loaded with filtering aid material and particles of overspray is deflected, for example, substantially vertically upwards, preferably with motion component, and/or is fed, substantially running vertically upwards or by at least with an upwardly directed movement component, to the at least one filter element of the at least one filtering device.
[0116] The use of at least one variable current element of at least one current conducting device preferably offers the advantage that the raw gas stream introduced into the raw gas chamber can be supplied in a controlled manner by the less to one filter aid material receiving container of the at least one filter device.
[0117] In one embodiment of the invention, it is provided that at least one chain element is formed as a guide plate. In this way, the raw gas stream can be controlled in a controlled manner in a predetermined direction.
[0118] It can be advantageous when at least one current element is manually adjusted and fixed in a preferred angular position.
[0119] Alternatively or in addition to this, it can be provided that at least one chain element is formed as an adjustable-adjustable chain element. Thus, it can be provided, for example, that at least one current element has a small mass, so that, when a raw gas stream is not supplied due to gravity, at least one channel then closes. inlet of at least one filtering device and thereby particularly preventing an output of the filtering aid material from the filtering device, contrary to a current direction of the raw gas stream, back to the varnishing booth.
[0120] At least one current element of the at least one current conducting device is rotatably arranged for that purpose, preferably around an axis aligned transversely, particularly substantially perpendicularly, to the vertical direction.
[0121] The mass of at least one current element of at least one immense current conducting device is preferably selected such that the at least one current element can be carried from a raw gas stream of a closed position to an open position by an input of the raw gas stream into a raw gas chamber of at least one filtering device.
[0122] A back pressure resulting from the mass (self-weight) of the at least one current element, then preferably remains in equilibrium with a pressure exerted by the raw gas stream.
[0123] The pressure applied by the raw gas stream on at least one current element of at least one current conducting device is preferably proportional to the bulk current of the raw gas stream.
[0124] Depending on the volume stream of the raw gas stream, it can be adjusted, preferably automatically, preferably, a cross section of at least one inlet channel of at least one filtering device, particularly by means of at least one inlet channel. minus one variable current element.
[0125] In particular, it can be provided that, depending on the volume stream of the raw gas stream, an entry angle of the raw gas stream into at least one raw gas chamber of at least one filtering device is automatically adjustable by means of of at least one variable stemming element. In this way, an adaptation of the amount of filtering aid material, which is swirled by the raw gas stream and received by the raw gas stream, can be adjusted.
[0126] Preferably, at least two current elements of at least one current conducting device are provided, which form boundary walls opposite one another, at least one inlet channel of at least one filtering device. In this way, a controlled influence on the raw gas stream introduced through the inlet channel into the raw gas chamber can take place.
[0127] In particular, provision can be made for at least two variable current elements, which limit at least one input channel of at least a filtering device in the vertical direction. It can be advantageous when a relative position of at least two current elements of at least one current carrying device is adjustable relative to one another.
[0128] In particular, it can be provided that at least one chain element is displaceable and/or rotatable with respect to another chain element immensely.
[0129] In an embodiment of the invention, it is provided that several chain elements arranged adjacent to each other in the current direction of the conveyor device of the varnishing installation of at least one current-carrying device are provided, which are adjustable separately from each other , so that at least one current-carrying device, and thereby a filtering device, can be adapted to different raw gas streams with variable volume streams along the transport direction. In this way, it can be ensured that even at different volume streams a desired minimum amount of filtering aid material can always be received by the filtering device at the input of the raw gas stream into the filtering device.
[0130] Furthermore, it can be provided that at least one current element of the at least one current-carrying device is displaceably arranged in a horizontal direction. In this way, the raw gas stream guided by at least one inlet channel of at least one filtering device is supplied in a controlled manner to different regions of the raw gas chamber, i.e., to different regions of an internal space of the filtering device. filtration, in which in the filtering operation the raw gas stream is present particularly at different regions of the filtering aid material receiving vessel of the filtering device.
[0131] At least one current-carrying device is preferably formed such that a raw gas stream can be fed by means of the current-carrying device to the filtering device, such that the gas stream raw gas enters above a treatment device of the filtration device and/or directed to the treatment device in the raw gas chamber of the filtration device.
[0132] In another embodiment of the invention, it may be provided that at least one current element of at least one current-carrying device by means of a drive device, for example, by means of a motor-controlled drive device, which is rotatable and/or can be moved horizontally and/or vertically.
[0133] It may be advantageous when by means of at least one current-carrying device, in dependence on an operating mode of at least one filtering device, for example, a cleaning operation, in which at least one filtering device , or a hazardous state, for example when a fire alarm is activated, a controlled adjustment of an alignment and/or positioning of at least one current element can be performed automatically. In this way, at least one current element can serve as a safety device, for example as a fire protection element.
[0134] In an embodiment of the invention, it is provided that the device for introducing filtering auxiliary material comprises a control device, by means of which an introduction capacity of the at least one material introduction device can be controlled and/or regulated filter aid.
[0135] By introducing capacity of the device for introducing filtering auxiliary material, it is to be understood in this description and in the appended claims, a measure for the amount of filtering auxiliary material, which in a predetermined time can be introduced into the raw gas stream by means of the filtering aid material introduction device.
[0136] It may be advantageous when by means of the control device the introduction capacity of the filtering aid material introducing device is controllable and/or adjustable in such a way that the capacity of the filtering aid material introduced into the raw gas stream of receiving overspray particles from the raw gas stream is at least approximately constant.
[0137] It may be advantageous when the amount of filter aid material introduced is controlled and/or regulated in dependence on the specific reception capacity of the filter aid material. The specific receiving capacity reproduces, in this case, what amount of lacquer spray surplus can be received by a predetermined amount of filtering aid material. The specific reception capacity changes, therefore, depending on the state of charge of the filter aid material with excess lacquer spray. Particularly, the specific reception capacity decreases with increasing operating time of the filtration device.
[0138] Alternatively or in addition to this, it can be provided that by means of the treatment device the specific reception capacity is controlled and/or regulated, for example, through a regular regulated and/or controlled exchange of filtering auxiliary material and /or through a control and/or regulation of a mixing process and/or a milling process. In that way, particularly at a constant introducing capacity of the filtering aid material introducing device, the capacity of the filtering aid material introduced into the raw gas stream to receive particles of lacquer spray overflow from the raw gas stream, can be kept at least approximately constant.
[0139] In addition, it may be provided that a control and/or regulation of the introduction capacity takes place through the control device, depending on the state of charge of the filtering auxiliary material, the mass of the filtering auxiliary material in the container of receiving filter aid material, the flow velocity of the raw gas stream in the inlet channel, the difference between the pressure in the raw gas stream and the pure gas line, and/or a degree of contamination of the gas stream crude with overspray particles.
[0140] In particular, provision can be made for an introduction capacity of the device for introducing filtering auxiliary material to be controllable and/or adjustable through an adjustment by means of a current element. In particular, for this purpose, provision can be made for a position and/or an angular position of at least one current element to be adapted, controlled and/or regulated for that purpose.
[0141] Alternatively or in addition to this, it can be further provided that by means of at least one treatment device for the mechanical treatment of the filtering aid material and/or the mixture of filtering aid material and particles of spray surplus the feed capacity can be adapted, particularly controlled and/or regulated. In particular, in this case, provision can be made for the control and/or regulation of the feed capacity to be adjustable, in particular controllable and/or adjustable, for a number of rotations of the rotating (treatment) elements of the at least one treatment device.
[0142] It may be advantageous when at least one filtering device of the filtering installation comprises a current conducting device, which is arranged in the raw gas chamber of the filtering device and through which the raw gas stream, which flows at least one inlet channel from the filter device to the raw gas chamber can be influenced. In this way, a stream of raw gas can be controlled in a controlled manner to at least one filter element of at least one filtering device, to obtain an advantageous separation of particles of overspray from the raw gas stream.
[0143] At least one current-carrying device comprises for that purpose, preferably, at least one element other than limiting walls of at least one filtering device, for example, a particularly variable current element.
[0144] It may be advantageous when the raw gas stream that runs at least one inlet channel from the filtering device to the raw gas chamber, can be diverted by at least one current conducting device towards at least one filter element of at least one filtering device.
[0145] In addition, it can be provided that by means of at least one current conducting device, the raw gas stream flowing through at least one inlet channel from the filtering device to the raw gas chamber can be swirled. . In this way, a turbulent current can be obtained within the raw gas chamber, with which a better mixing of the spray overflow particles and the particles of filtering aid material can be obtained and, therefore, a better separation of the overflow particles. spraying the raw gas stream.
[0146] In particular, when by means of at least one current conducting device a swirling of the raw gas stream fed to the raw gas chamber is to be obtained, it can be provided that at least one current conducting device comprises at least a current element formed, for example, as a diffuser. In particular, at least one rod-shaped chain element can be provided.
[0147] Furthermore, it can be provided that at least one current-guiding device comprises at least one current element formed, for example, as a guide plate, by means of which projections and/or other points of the filtering device, which disturb a preferred current of the raw gas stream in the raw gas chamber, can be transposed.
[0148] It may be advantageous when at least one current element of at least one current-carrying device is provided with openings, through which in the filtering operation of the filtering device filtering auxiliary material can pass. In this way, a demand can be obtained from all surfaces, which face the raw gas chamber, with filtering aid material and secure protection of these surfaces against undesirable contamination with overspray of varnish.
[0149] Advantageously, it can also be provided that at least one chain element formed as a guide plate has a plurality of openings and/or preferably serves as a diffuser.
[0150] By a diffuser, it should be understood in this description and in the appended claims, particularly, an element, which favors a whirling of guided currents along it. In particular, under this can be understood an element, by means of which a laminar current could be swirled, so that a turbulent current is generated.
[0151] In one embodiment of the invention, it is provided that at least one current element of at least one current conducting device is arranged, particularly fixed, in a laminar region of the raw gas chamber, in which in the filtering operation of the device A laminar current predominates, and/or extends into a turbulent region of the filtering device, in which in filtering operation of the filtering device a turbulent current predominates or must be generated.
[0152] The use of at least one current element of at least one current-carrying device can particularly offer the advantage that at least one filter element of at least one filter device can be substantially uniformly inflowed with the raw gas stream containing overspray particles. Furthermore, in that way, undesirable deposits of filter aid material inside the raw gas chamber can be lessened, especially, totally avoided.
[0153] In an embodiment of the invention, it is provided that the varnishing installation, particularly the filtration installation of the varnishing installation, comprises a conditioning device, which comprises a cooling device, a wetting device and/or a separation device of drops. Furthermore, the conditioning device preferably comprises a liquid handling system, particularly in common, for the refrigerating device, the wetting device and/or the drop separating device. Thereby, a gas stream guided by the conditioning device can be cooled and/or moistened particularly efficiently. In addition, drops found in the gas stream can be easily separated.
[0154] It may be provided that the conditioning device comprises a cooling device and a wetting device, the wetting device being arranged downstream of the cooling device, with reference to a current direction of the conditioning device.
[0155] It may also be provided that the conditioning device comprises a refrigeration device and a drop separation device, preferably, the drop separation device is arranged downstream of the refrigeration device, with reference to a current direction of the conditioning device.
[0156] It may be favorable when the conditioning device comprises a heating device. This heating device can be arranged, with reference to the current of the conditioning device, downstream of the cooling device and/or upstream of the wetting device.
[0157] It can be further advantageous when the conditioning device comprises at least two drop separation devices, preferably a drop separation device is arranged, with reference to the stream of the conditioning device, upstream of a wetting device, and another drop separating device, downstream of the wetting device.
[0158] In one embodiment of the invention, it is provided that the conditioning device comprises a liquid handling system, through which condensate can be received, which forms in the refrigeration device, and/or liquid not received by the gas stream , which is distributed by the wetting device.
[0159] In particular, it can be provided that the liquid handling system comprises a collecting tank, which is arranged preferably below the cooling device, below the wetting device and/or below the droplet separation device. Preferably, the liquid handling system comprises a common sump trough for the refrigeration device, the wetting device and/or the droplet separation device, so that substantially all of the liquid formed in the conditioning device, not received by the gas stream, can be collected in the common sump pan.
[0160] It may be favorable when by means of the wetting device the cooling device can be requested with liquid, particularly sprayed. Thereby, to increase the wetting efficiency, the surface bathed by the gas stream from the refrigeration device can be moistened with liquid. The cooling device, because of this, can serve as an addition or replacement at a supplier of phase contact surfaces.
[0161] By means of a supplier of phase contact surfaces, particularly for wetting, a material transition from a liquid phase to a vapor phase can be facilitated. Particularly, in this case, a surface of the liquid can be enlarged.
[0162] For example, it may be envisaged that a phase contact surface supplier, for example, the cooling device, is formed by a mesh with a large surface, for example, a wire mesh, which is particularly requested. bathed or sprayed with liquid. Alternatively or in addition to this, provision can be made for a filling body, for example of active carbon, to be requested, in particular, bathed or sprayed with liquid, and at the same time permeated with the gas stream, to lay a surface of liquid as possible in contact with the gas stream.
[0163] A supplier of phase contact surfaces may further offer the advantage that droplets are separated in the gas stream. A supplier of phase contact surfaces can therefore also serve as a droplet separation device.
[0164] It may be advantageous when the cooling device serves at the same time as a droplet separating device.
[0165] It may also be provided that the refrigeration device serves as a standardization device to standardize the gas stream in the conditioning device. This smoothing device can also be referred to as a rectifier.
[0166] Preferably, therefore, the functions of a supplier of contact surfaces and/or a rectifier are integrated in the cooling device.
[0167] This conditioning device can offer the advantage that the pressure loss formed in the permeation of the conditioning device with the gas stream is reduced.
[0168] In addition, this conditioning device can have a compact construction, with which a space requirement is reduced.
[0169] The number of components of the conditioning device can thereby be reduced.
[0170] The present invention is based on the other task of making available a process for operating a varnishing plant, which enables a safe separation of varnish spray surplus from the air stream charged with varnish spray surplus.
[0171] This task is solved according to the invention by the fact that the following process steps are carried out: - transport of the work pieces in a transport direction through the varnishing booth by means of a conveyor device and varnishing of the parts to work in the varnishing booth; - feeding a stream of raw gas from the varnishing cabinet of the varnishing installation, which has a surplus of varnish spray received in the varnishing cabinet, to a filtration installation; - separating varnish overspray from the raw gas stream loaded with overspray particles, by means of at least one filtering device of the filtering installation, so that a stream of pure gas is obtained.
[0172] The process according to the invention preferably presents the characteristics and/or advantages described above, in connection with the varnishing installation according to the invention.
[0173] It may be advantageous when the raw gas stream is discharged through a line of pure gas, which, at least in part, is arranged within an outer contour of at least one filtering device.
[0174] It may be advantageous when by means of at least one filtering auxiliary material introduction device, particularly by means of a treatment device for the mechanical treatment of filtering auxiliary material and/or a mixture of filtering auxiliary material. filtration and overspray particles, filter aid material and/or a mixture of filter aid material and overspray particles is decompressed.
[0175] It may be favorable when at least a part of the raw gas stream is introduced into at least one filtering aid material receiving container of at least one filtering device.
[0176] It may further be advantageous when the uncompressed filter aid material and/or the mixture of filter aid material and uncompressed spray surplus particles is dragged by the raw gas stream and thereby mixes with the gas raw gas stream.
[0177] Particularly when a request for the raw gas of the raw gas stream with filtering aid material and/or with a mixture of filtering aid material and particles of overspray already occurs by introducing the raw gas stream into the at least a filtering aid material receiving container of the at least one filtering device, compressed air shocks can be dispensed by means of at least one compressed air device or similar devices for swirling the filtering aid material.
[0178] In particular, provision may be made for the pure gas stream to be guided down a raw gas well of the varnishing plant. In this way, particularly advantageous gas flow conduction within the filter installation and a compact configuration of the filter installation are possible.
[0179] In addition, the present invention relates to a process for operating a varnishing installation, which comprises the following process steps: - transport of workpieces in a transport direction through the varnishing booth by means of a conveyor device and varnishing of work pieces in the varnishing booth; - feeding a stream of raw gas from the varnishing booth of the varnishing plant, which has received a surplus of varnish spraying in the varnishing booth, to a filtration plant; - separating varnish overspray from the raw gas stream loaded with overspray particles by means of at least one filtering device of the filtering installation, so that a stream of pure gas is obtained.
[0180] The present invention is based in this respect on the task of making available a process, by means of which paint overspray can be safely separated from a raw gas stream charged with varnish overspray.
[0181] This task is solved according to the invention by the fact that the raw gas stream is guided through at least one inlet channel of at least one filtering device to a raw gas chamber of the at least one filtering device. filtration aid material being fed to the raw gas stream by means of at least one filtration aid material introduction device.
[0182] The process according to the invention can preferably have the characteristics and/or advantages described above in connection with the varnishing plant according to the invention and/or as the process described above.
[0183] In particular, it can be provided that by means of the filtering aid material introduction device, filtering aid material is swirled, mixed, transported and/or ground.
[0184] In addition, the varnishing installations according to the invention and/or the processes according to the invention may have the characteristics and/or advantages described below:
[0185] It can be advantageous when the varnishing plant comprises at least one device for introducing filtering aid material, which is formed as a dosing device, for the selected feeding of filtering aid material, which is also referred to as filtering material. precoat, to a raw gas stream loaded with overspray particles.
[0186] The filtration installation of the varnishing installation preferably comprises at least one chamber of pure gas, which by one of a filter element of at least one filtering device is separated from at least one chamber of raw gas, whereby in the filtering operation of the filtering device there is a stream of pure gas in the at least one chamber of pure gas and in the chamber of raw gas there is a stream of gas laden with particles of overspray.
[0187] The varnishing installation preferably has at least one gas re-conduction system, for example, an ambient air conduction device, by means of which the pure gas stream obtained by purifying the raw gas stream can be fed again, at least partially, to the paint booth.
[0188] The varnishing installation preferably comprises at least one line of pure gas, which at least in parts is arranged adjacent to at least one filtering device and/or is aligned, at least in parts, substantially vertically . Preferably, by means of at least one pure gas line, the pure gas adjacent to the at least one filtering device can be conducted, at least in part, substantially vertically downwards.
[0189] In addition, it may be foreseen that the varnishing installation comprises at least one pure gas line, which passes under the well (raw gas) and, thus, allows the conduction of the pure gas stream on one side referring to a vertical longitudinal center plane of the paint booth to the side opposite that side.
[0190] Advantageously, the raw gas stream can be guided, particularly introduced under an acute angle to the horizontal in at least one raw gas chamber of at least one filtering device. It may be advantageous in that case when at least one guide element (chain element), particularly movably formed, can be controlled and/or regulated, to shift the central current direction of the raw gas stream in the gas well. raw gas asymmetrically to the central longitudinal plane of the paint booth and/or to the longitudinal central plane of the filtration installation (of the air purification system), and feed it, preferably at an accelerated rate, to the raw gas chamber. In particular, it can be envisaged that the central current direction of the raw gas stream is at an inlet section of the raw gas well, at the upper end of the raw gas well, transversely to the current direction of the raw gas stream in a channel. inlet of the filtration device. The central current direction of the raw gas stream in the inlet channel of the filter device further preferably extends transversely to the longitudinal, vertical central plane of the varnishing booth.
[0191] It can be advantageous when in at least one raw gas chamber of at least one filtering device of the filtering aid filtering material, which is arranged, for example, in a filtering aid material receiving container formed as vat, is swirled with the help of the raw gas stream and/or with the help of a treatment device, for example, a rotary mixing unit (screw mixer, worm mixer), and fed (added) to the raw gas. The raw gas stream thus charged with filtering aid material is preferably diverted and with a vertically upwardly directed stream component is fed to at least one filter element of at least one filtering device.
[0192] It may be advantageous when the pure gas line passing under the raw gas well extends substantially transversely to the transport direction of the conveyor device of the varnishing installation and exits into a pure gas collecting channel, which it is also a component of the gas recirculation system, particularly of the ambient air supply device, from which pure gas can be taken to feed the paint booth.
[0193] The device for introducing filtering aid material formed, for example, as a mixing unit, preferably has a substantially horizontally aligned rotation axis, around which at least one treatment element can rotate, and enables the transport of filtering aid material in a direction substantially parallel to the direction of transport of the conveyor device of the varnishing plant. In that case, it can be foreseen that a feed of the raw gas stream occurs in a direction extended transversely to the axis of rotation of the device for introducing filtering aid material, particularly substantially perpendicularly thereto, and that the line of pure gas passing through below the raw gas well, it extends, at least partially, also below, particularly, below the filtering device and/or below, particularly below, the filtering aid introducing material.
[0194] The filtration installation of the varnishing installation preferably enables a pressure build-up by means of a fan inside a filtration module.
[0195] Particularly when at least one device for introducing filtering aid material is formed as a treatment device, it can be provided that by means of at least one treatment element of the treatment device, an outlet arranged adjacent to the device for introducing filter aid material for removing filter aid material from the filter device by means of the at least one treatment element can be released so that it cannot clog and prevent the discharge of filter aid material , particularly heavily loaded with overspray particles.
[0196] In one embodiment of the invention, it can be provided that at least one device for introducing filtering aid material comprises at least one grinding ball and/or at least one grinding plate, by means of which, in particular, agglomerates of material filter aid and overspray particles can be disintegrated.
[0197] It may be advantageous when an outlet in the filtering device for removing filtering aid material from the filtering device is provided with a safety device, for example, with ribs arranged in a cross shape, to prevent an obstruction of the outlet with large agglomerates of filter aid material and overspray particles.
[0198] In an embodiment of the invention, it is provided that at least one treatment device comprises treatment elements of various types, for example, decompacting elements, conveyor elements, grinding elements and/or mixing elements.
[0199] In particular, it can be provided that at least one treatment element of at least one treatment device surrounds on at least five sides a volume that is preferred and in it filtering auxiliary material can be received in the treatment operation, so that in the In the treatment operation of the treatment device, in which filter aid material can, for example, be swirled, a certain quantity of filter aid material can be trapped by at least one treatment element, without this filter aid material slipping. immediately again from the at least one treatment element.
[0200] At least one treatment device preferably comprises a grinding device, a grinding stone and/or grinding balls, which are formed, for example, of ceramic.
[0201] In one configuration of a treatment device, it is provided that at least one grinding ball is formed as a free-rolling ball of a material with high density, for example, of a metallic material, for example, steel.
[0202] It may be advantageous when at least one treatment device comprises a grinding device with grinding stones rubbing against each other.
[0203] It may further be advantageous when at least one treatment device comprises a rotating conveyor worm screw.
[0204] In an embodiment of the invention, it can be provided that the weight or mass of the filtering aid material disposed in the filtering aid material receiving container or the mixture of filtering aid material and varnish spray surplus disposed in the container. reception of filter aid material is determined by means of a scale.
[0205] In this case, the balance can be coupled particularly to a lower section of the filter aid material receiving container, which is mechanically uncoupled from an upper section of the filter aid material receiving container.
[0206] In addition, it is preferably determined by means of the scale, the weight or mass of the lower section of the container for receiving filtering aid material and the material contained therein.
[0207] In order to assess the usefulness of the material contained in the filter aid material receiving container for purification of the raw gas stream, it may be provided that material from the filter aid material receiving container is unpacked and/or swirled at least a vortex stage and by a comparison of the weight or mass of the material contained in the filter aid material receiving vessel, before the vortex stage and after the vortex stage, a purification capacity or efficiency of the material contained in the container for receiving filter aid material. Particularly, it can thus be determined what amount of filter aid material adheres during the tumble phase in at least one filter element of the filter device, to form a protective layer thereon.
[0208] Efficiency (specific receiving capacity) is a measure for the ability of the filter aid material to adhere to the filter element and be able to bind lacquer overspray.
[0209] This efficiency can be determined, particularly, as the quotient of the weight or mass reduction of the material contained in the filter aid material receiving container by the swirling, on the one hand, and the liquid swirling time, on the other hand.
[0210] For a more accurate determination of the efficiency, it can be foreseen that a vortexing cycle is carried out, with several vortexing phases separated from each other by vortexing pauses and the weight or mass of the material, in each case, contained in the container Auxiliary material receiving rates, before the first vortex stage of the vortex cycle and after the last vortex stage of the vortex cycle, are compared to determine efficiency. The greater the value of this efficiency, the better suited is the filter aid material receiving container material for forming a protective layer on the at least one filter element.
[0211] It is favorable, therefore, when material is removed from the filter aid material receiving container, when the determined efficiency and/or the difference in weight or mass is below a predetermined minimum value.
[0212] The material removed, particularly a mixture of filter aid material and lacquer spray surplus, is then replaced by fresh filter aid material, which is not loaded or only to a small extent with lacquer spray surplus.
[0213] In a preferred configuration, it can be provided that by means of a scale, an amplitude of a weight curve is determined, which reproduces a time course of the total weight of the mixture of filtering auxiliary material and particles of excess varnish spray arranged in the filter aid receiving container.
[0214] For example, when a predetermined threshold value is not reached and/or when it is exceeded, it can be provided that at least a part of the mixture of filter aid material and varnish spray surplus particles is removed from the receiving container of filter aid material and replaced with fresh filter aid material, not loaded or only to a small extent with particles of overspray.
[0215] In this way, a high efficiency of the filtering aid material can be maintained for a long period.
[0216] In particular, by means of a device for introducing filtering aid material a permanent precoat can be carried out, i.e. a continuous introduction of filtering aid material in the raw gas stream, not filtering operation of at least one filtration device.
[0217] Preferably, a compressed air device for mixing, decompacting and/or swirling filter aid material is unnecessary.
[0218] In an alternative modality or in addition to a device for introducing filtering auxiliary material as described above, a compressed air device for mixing, decompacting and/or swirling filtering auxiliary material can be provided.
[0219] Preferably, there is a continuous mixing of filter aid material in the raw gas stream of a charge vessel (filter aid material receiving vessel). This results in a continuous (short term) loss of mass between two cleaning processes on the filter plugs (filter elements). In the medium term, this results in an increase in the mass of filter aid material and particles of overspray in the filter aid receiving vessel and, after a certain time, also a decrease again. The mass of filter aid material and overspray particles in the filter aid material receiving vessel, for this purpose, is preferably continuously monitored. Particularly at fixed intervals, the development of the mass of filter aid material and overspray particles in the filter aid material receiving vessel is compared with reference values, for example a reference value for unused filter aid material , i.e. not contaminated with varnish spray overflow particles.
[0220] Preferably, it can be determined whether a mixture of filter aid material and varnish spray surplus is suitable for fluidization. For this purpose, for example, the temporal development of the total mass of filter aid material and varnish spray surplus existing in the filter aid material receiving container can be determined and compared with reference values, particularly a mass change occurring within a purifying and swirling cycle in the filter aid receiving vessel needs to be detectable in order to reach a conclusion on the fluidizing capacity of the mixture of filter aid material and lacquer overspray . Too small a mass difference during this cycle makes it possible to conclude that the amount of filter aid material required for the safe filtration operation of the filtration device is not fit for fluidization.
[0221] By means of at least one treatment device, the filter aid material disposed in the filter aid material receiving container or the mixture of filter aid material and particles of overspray disposed in the auxiliary material receiving container The filter aid material can be kept in an uncompacted state, for example being fluidized, so that the filter aid material or the mixture of filter aid material and overspray particles can be swirled in a particularly simple way and fed into the stream of raw gas.
[0222] Furthermore, by means of at least one device for treating the filter aid material disposed in the filter aid material receiving container or the mixture of filter aid material and particles of overspray disposed in the filter aid receiving container filtering aid material can be continuously lifted, so that it is carried along in a particularly simple way by the raw gas stream and therefore can be received by the raw gas stream.
[0223] To drive at least one treatment device, for example, an electric motor can be provided. In this way, it is particularly simple to control and/or regulate a number of revolutions of a rotating (treatment) element of at least one treatment device.
[0224] By a control and/or regulation of a number of revolutions (frequency) of at least one treatment device, it can be influenced, in particular, the input power.
[0225] At least one current conducting device and/or at least one inlet channel of at least one filtering device is preferably arranged in such a way that a raw gas stream led to the raw gas chamber enters the raw gas chamber in the region of the treatment device, particularly, just above the treatment device, so that already a small launch height of the treatment device is sufficient to feed filtration auxiliary material to the raw gas stream, i.e. whereas when by means of the at least one treatment device the material arranged in the filter-aid material receiving container is transported vertically upwards for a small distance, the filter-aid material or the mixture of filter-aid material and particles of overspray can be received by the raw gas stream.
[0226] Particularly, when a treatment device comprises a milling device for grinding the material (filter aid material or a mixture of filter aid material and particles of overspray) disposed in the filter aid material receiving container, agglomerates of overspray particles and filter aid material can be reground in a simple way so that a constant grain size distribution can be guaranteed.
[0227] Alternatively or in addition to this, it can be provided that at least one device for introducing filtering aid material comprises a sound device, for example an ultrasound device, by means of which the mixture of particles from spray surplus and filter aid material can be sounded so that agglomerates of overspray particles and filter aid material can be crushed.
[0228] At least one treatment element of at least one treatment device preferably comprises a metallic material or is preferably formed of a metallic material, to minimize abrasion in the permanent operation. Alternatively or in addition to this, however, it can also be provided that at least one treatment element of the at least one treatment device comprises a plastic material, for example a fiber-reinforced plastic material, and/or a ceramic material or it is formed from a plastic material, for example a fiber reinforced plastic, or a ceramic material.
[0229] Particularly when non-metallic materials are selected for the treatment elements of at least one treatment device, higher rotation speeds can be obtained, without having to fear a formation of sparks.
[0230] It can be advantageous when at least one device for introducing filtering auxiliary material is provided by means of a safety device formed, for example, as a coarse separator, particularly as a grate, as a magnetic matrix or as a comb, for pick up objects accidentally sucked into the filter device, particularly metallic objects. Particularly in that way, a treatment device can be protected against damage.
[0231] Particularly, when the efficiency (specific receiving capacity) of the mixture of filter aid material and spray surplus particles, disposed in the filter aid material receiving container, decreases in the course of a filtration operation of the at least a filtering device, it can be provided that a partial emptying of the at least one filter-aid material receiving container is carried out and very fine filter-aid material is fed. It is fed, for example, filtering aid material with a distribution and grain sizes, which has an average D50 of approximately 1 μm to approximately 10 μm, that is, 50% of the particles are larger and 50% of the particles are smaller than than the predetermined value, between approximately 1 µm and approximately 10 µm.
[0232] In addition, material from a silo in which filter aid material loaded with particles of overspray can be stored discharged from the filter aid material receiving container can be mixed with filter aid material fresh, not loaded with overspray particles, and again fed to the filter aid receiving vessel. In that case, it can also be foreseen that the mixture of fresh filter aid material and filter aid material loaded with particles of overspray is treated, for example ground, before being fed to the auxiliary material receiving container. filtration.
[0233] In the varnishing plant according to the invention and/or in the process according to the invention, it can be provided that a filtering surface of at least one filtering device is enlarged by adding other filter elements, so that , preferably, only one series of filtering devices is foreseen along the transport direction of the conveyor device of the varnishing plant, and to this series of filtering devices all the air originating from the varnishing booth is fed, i.e., the entire raw gas stream.
[0234] The varnishing installation preferably comprises at least one pure gas collecting channel, formed "on two floors", the two "floors" being connected to each other through at least one fan, which is formed, for example, as an axial fan and on which the intermediate roof separating the two "floors" is arranged.
[0235] The air (pure gas) collected in the pure gas collecting channel is preferably guided parallel to the transport direction of the conveyor device of the varnishing installation to a front side of the varnishing installation and in the region of a cabin gate the varnishing device guided, at least approximately vertically upwards, to a pressure chamber of the varnishing installation. This channel for feeding the accumulated pure gas through the pure gas collecting channel to the pressure chamber can be provided, for example, after, in each case, four or more filtering devices.
[0236] Preferably, at least one filtering device comprises at least one filter element, e.g. suspended perpendicularly, which is arranged within a vertical projection of the paint booth, below the paint booth and can be removed from the device of filtration.
[0237] In one configuration of the varnishing installation, it is provided that the varnishing installation has at least one compressed air tank, which is arranged, for example, above, particularly on, at least one filtering device.
[0238] It can be advantageous when several pure gas lines, which feed pure gas from different filtering devices to a pure gas collecting channel, are provided with different conditioning devices. Thus, for example, it can be provided that at least one pure gas line of at least one filtering device is provided with a conditioning device formed as a refrigeration device, and that at least one other pure gas line of another device The filtration unit is provided with a conditioning device formed as a wetting device. The heat necessary for the operation of the varnishing installation of the gas stream to be fed to the varnishing booth is preferably fed to it by means of at least one fan, i.e. this heat preferably originates from the compression heat from at least one fan.
[0239] Particularly when in several pure gas lines several conditioning devices are provided, it can be foreseen that the necessary temperature and/or air humidity of the gas stream to be fed to the varnishing booth is obtained by mixing of streams of pure gas, differently conditioned, originating from different pure gas lines.
[0240] Preferably, at least one filtering device comprises at least one funnel.
[0241] At least one filtering device is advantageously passable, that is, a person can enter the internal space of the at least one filtering device.
[0242] It may be advantageous when at least one filtering device can be supplied with filtering aid material (eg mineral flour) and/or filtering aid material can be discarded from the filtering device.
[0243] In principle, a 2.5 m module can be provided as a filtering device, which enables a volume flow of, for example, between approximately 15,000 m3/h and approximately 30,000 m3/h. In particular, it can be envisaged that at a pressure of 1,200 Pa, a volume stream of, for example, approximately 22,000 m3h can be realized and at approximately 1,000 Pa, a volume stream of, for example, approximately 20,000 m3/h. This corresponds substantially to twice the current volume of the 2m module known so far.
[0244] Other features and/or advantages of the invention are the object of the description below and the representation in drawings of examples of modality.
[0245] In the drawings they show:
[0246] Figure 1 is a schematic perspective representation of a varnishing installation, with a view to a maintenance side of the varnishing installation;
[0247] Figure 2 is a schematic perspective representation of the varnishing installation of Figure 1, with a view to a rear side of the varnishing installation, opposite the maintenance side of the varnishing installation;
[0248] Figure 3 is a schematic perspective representation of a filtration module of a filtration installation of the varnishing installation of Figure 1;
[0249] Figure 4 is a schematic vertical section through the varnishing installation of Figure 1;
[0250] Figure 5 is a schematic top view of the maintenance side of the varnishing installation in Figure 1;
[0251] Figure 6 is a schematic sectional representation of an inlet channel of a filtration device of the filtration installation of the varnishing installation of Figure 1;
[0252] Figure 7 is a schematic perspective representation of the inlet channel of Figure 1;
[0253] Figure 8 is a schematic perspective representation of a device for introducing filtration auxiliary material of a filtration device of the filtration installation of the varnishing installation of Figure 1;
[0254] Figure 9 is a schematic side view of the filtering auxiliary material introducing device of Figure 8, with a view on the side of the filtering auxiliary material introducing device facing, in the assembled state of the filtering auxiliary material introducing device , for the maintenance side of the varnishing plant;
[0255] Figure 10 is a schematic representation of a vertical section through the filter aid material introduction device of Figure 8 along line 10-10 in Figure 9;
[0256] Figure 11 is a sectional representation corresponding to Figure 10 of an alternative embodiment of a device for introducing filtering aid material, comprising grinding plates;
[0257] Figure 12 is a sectional representation corresponding to Figure 10 of another alternative embodiment of a device for introducing filtering aid material, in which grinding balls are provided;
[0258] Figure 13 is a schematic sectional representation of a conditioning device of the varnishing installation in Figure 1;
[0259] Figure 14 is a schematic vertical cross-section, corresponding to Figure 4, by an alternative modality of a varnishing installation, in which a conditioning device is arranged downstream of a fan;
[0260] Figure 15 is a schematic top view of the varnishing installation of Figure 14 from above;
[0261] Figure 16 is a schematic top view corresponding to Figure 15, from above on another alternative embodiment of a varnishing installation, comprising two filtration devices;
[0262] Figure 17 is a schematic vertical cross-section, corresponding to Figure 14, by an alternative embodiment of a varnishing installation, in which a pure gas channel passes through a raw gas well;
[0263] Figure 18 is a schematic top view, corresponding to Figure 15, of the varnishing installation of Figure 17;
[0264] Figure 19 is a schematic top view, corresponding to Figure 18, of another alternative embodiment of a varnishing installation, comprising three filtration devices; and
[0265] Figure 20 is a schematic representation of the operating mode of the various types of varnishing installation.
[0266] Equal or functionally equivalent elements are provided in all figures with the same reference signs.
[0267] A varnishing installation shown in Figures 1 to 10, designated 100 in total, comprises a varnishing booth 102, in which workpieces 104 can be varnished, for example, with fluid varnish, particularly with wet varnish , and a filtration installation 106, with which an air stream guided by a varnishing cabinet 102 can be purified.
[0268] The varnishing booth 102 comprises a conveyor device 108, by means of which workpieces 104, for example vehicle bodies, can be transported in a transport direction 110 through the varnishing booth 102 (see particularly , Figure 4).
[0269] In the varnishing of workpieces 104 in the varnishing booth 102, overspray is formed, for example, in the use of wet varnish, overspray of wet varnish, which is received by the air guided by the varnishing booth 102 and, with that, contaminates the same.
[0270] Below the varnishing booth 102 of the varnishing plant 100 is therefore arranged the filtration plant 106, by means of which the excess spray can be removed by guided through the varnishing booth 103.
[0271] Next, reference is made to the air loaded with particles of overspray, guided by the varnishing booth 102, as a raw gas stream.
[0272] In order to be able to feed the raw gas stream from the paint booth 102 to the filtration installation 106, a paint booth bottom 111 of the paint booth 102 is provided with an opening 112, which extends in the transport direction 110, which is centrally arranged, with reference to a horizontal direction extending perpendicularly to the transport direction 110, at the bottom of the paint booth 111.
[0273] Below opening 112 there is arranged a raw gas well 114 substantially four-way of the filtration installation 106.
[0274] The raw gas well 114 of the filtration installation 106 extends in the transport direction 110 and in the vertical direction and with reference to a horizontally extended direction, perpendicularly to the transport direction 100, is centrally arranged in the filtration installation 106 .
[0275] An end 116 of the upper raw gas well 114 in the vertical direction faces the opening 112 of the varnishing booth 102 and forms an inlet opening 118 of the raw gas well 114 through which the raw gas stream can enter in the raw gas well 114.
[0276] A lower end 120 in the vertical direction of the raw gas well 114 disposed opposite the upper end 116 is adjacent to several inlet channels 122 of various regenerative filter devices 124 so that the raw gas stream can be fed via raw gas well 114 to filter devices 124.
[0277] As can be seen particularly from Figure 4, the filtration installation 106 can be divided by means of a central longitudinal plane 126 of the varnishing booth 102 on a left side 128, with reference to the transport direction 110 of the device conveyor 108 of the paint booth 102 and a right side 130 disposed opposite the left side 128 with respect to the central longitudinal plane 126 of the paint booth 102.
[0278] On the left side 128 of the filter installation 106 are arranged a series of filter devices 124, which in the transport direction 110 are arranged one behind the other and, in each case, have an inlet channel 122 adjacent to the lower end 120 of the raw gas well 122.
[0279] Each of the filtering devices 124 is formed, in that case, substantially four-shaped and comprises a housing 14, which is formed by boundary walls 132 inclined at an angle of preferably at least approximately 80° against the horizontal. Bounding walls 132 enclose a raw gas chamber 136.
[0280] The housing 134 of each filter device 124 can be divided into a filter section 138 and a funnel section 140.
[0281] The filter section 138 is formed substantially four-way and serves to receive several filter elements 142.
[0282] The funnel section 140 arranged below the filter section 138 has a substantially triangular cross section and serves for feeding the raw gas stream to the filter elements 142, as well as for enriching the raw gas stream with material filter aid.
[0283] Above the filter elements 142 of the filter device 124 a pure gas chamber 144 is arranged, which is separated by means of the filter elements 142 from the raw gas chamber 13.
[0284] The filtering device 124 further comprises a filtering aid material receiving container 146, which is arranged at a lower end of the funnel section 140 and serves for receiving filtering aid material.
[0285] In the filter aid material receiving container 146 there is arranged a filter aid material introduction device 148, by means of which filter aid material can be introduced into the raw gas stream entering through the inlet channel 122 .
[0286] The filter aid material introducing device 148 is formed, for example, as a treatment device 150 for the mechanical treatment of the filter aid material or a mixture of filter aid material and particles of overspray disposed in the filter aid material receiving container 146.
[0287] By means of the filter aid material introduction device 148 filter aid material can be swirled in the raw gas chamber 136 and deposited on the filter elements 142, whereby a protective layer is formed on the filter elements 142.
[0288] To remove the layer of filtering aid material from the filter elements 142, a compressed air device 152 is provided in the pure gas chamber 144 by means of which compressed air can be fed to the filter elements 142.
[0289] In that case, compressed air can be fed through the compressed air device 152 to the filter elements 142 in a direction that is opposite to the flow direction of the gas to be purified in a filtration operation of the filter device 124 so that by means of the compressed air device 152 a protective layer of the filtering aid material can be removed in a particularly simple way from the filter elements 142.
[0290] Particularly in order to be able to feed fresh filtering auxiliary material to the funnel section 140 of the filter device 124, a feed device 154 is provided in the region of the funnel section 140 of the filter device 124.
[0291] The inlet channel 122, through which the raw gas stream can be fed to the raw gas chamber 136 of the filter device 124, is provided with a current conducting device 156, which has at least one current element 158 and serves to influence the current direction and/or the current velocity of the raw gas stream fed by the inlet channel 122 to the filter device 124.
[0292] In addition, there is provided in the raw gas chamber 136 another current-carrying device 156, comprising a chain element 158a formed as a guide plate and several, for example four, bar-shaped chain elements 158b (see Figure 4), which serve for turbulence formation and the selected feed of raw gas stream to filter elements 142.
[0293] By purifying the raw gas stream by means of filtering devices 124, a stream of pure gas can be obtained, which initially passes through the pure gas chamber 144.
[0294] Adjacent to the pure gas chamber 144 is a pure gas line 160, by means of which the pore gas stream can be guided from the pure gas chamber 144 vertically downwardly adjacent to the filter device 124. In principle, a separate pure gas line 160 can be provided for each filter device 124. But, it may be advantageous when the gas stream is discharged from two filter devices 124, particularly between the two filter devices 124, by means of a common pure gas line 160.
[0295] To that end, the pure gas line 160 comprises boundary walls 162, which are aligned with the boundary walls 132 of the filter device 124, extended at least approximately parallel to the vertical longitudinal center plane 126 of the varnishing102. The pure gas line 160 therefore does not protrude in that section, in the horizontal direction and perpendicular to the transport direction 110, beyond the filter device 124 and is therefore disposed within an outer contour 153 of the filter device 124 .
[0296] In particular, it is provided, in this case, that an external boundary wall 164 of the filter device 124, remote from the central longitudinal plane 126, vertical, of the varnishing booth 102, is arranged at least exactly the same distance apart from the longitudinal central plane 126 vertically of the paint booth 102 as an outer boundary wall 166 of the pure gas line 160 remote from the vertical longitudinal center plane 126 of the lacquer booth 102.
[0297] The boundary walls 132, 162 of the filter device 102 or of the pure gas line 160, facing the central longitudinal 126 vertical plane of the varnishing booth 102, are preferably aligned with each other, from so that by these boundary walls 132, 162 a substantially flat boundary wall 168 of the raw gas well 114 is formed.
[0298] The pure gas line 160 extends from the pure gas chamber 144 to below the funnel section 140 of the filter device 124 and, departing from there substantially perpendicular to the transport direction 110 in the horizontal direction, below the raw gas well 114, to the right side 130 of the filter installation 106, opposite the left side 128 of the filter installation 106.
[0299] On this right side 130 of the filtering installation 106 there is arranged a pure gas collecting channel 170, in which a pure gas line 160 exits.
[0300] For conditioning the pure gas stream conducted in the pure gas line 160, at least one conditioning device 172 can be provided in the pure gas line 160, which is formed, for example, as a heating device, as a heating device. refrigeration, as a wetting device and/or as a dehydrating device.
[0301] With reference to the current direction of the stream of pure gas, before, i.e. upstream, of the conditioning device 172, a safety filter 174 is arranged, by means of which it can be prevented that, in the case of a unintentional damage to a filter element 142 of a filter device 124, filter aid material reaches the conditioning device 172 and thereby damages the same.
[0302] The stream of pure gas conditioned by means of the conditioning device 172, is then fed to an output region 176 of the pure gas collector channel 170, in which several lines of pure gas 160 exit from the various filter devices 124.
[0303] The pure gas collecting channel 170 comprises, in addition to the output region 176, a discharge region 178, through which the purified and conditioned gas stream can be discharged from the filtration installation 106, for new use in the cabin of varnishing 102.
[0304] The pure gas collecting channel 170 is therefore formed divided into two parts, the outlet region 176 being arranged below the discharge region 178 and separated from it by a partition wall extending to the along a horizontal plane.
[0305] On the dividing wall 180, several fans 182 are arranged, by means of which the pure gas can be moved from the outlet region 176 to the discharge region 178 of the pure gas collecting channel 170 and which, therefore, also activate, in the total, the pure gas stream and/or the raw gas stream in the coating plant 100.
[0306] As can be seen particularly from Figure 3, it can be provided that the filter device 124, the pure gas line 10, a section of the pure gas collecting channel 170, the conditioning device 172, the filter 174 and a raw gas well section 114 together form a filtration module 184.
[0307] A filtration module 184, is, in this case, particularly a pre-assembled unit, which can be mounted separately from a mounting location of the varnishing plant 100, and for finishing the varnishing plant 100, it only needs be connected with other components, particularly with other filter modules 184, particularly identically formed.
[0308] As can be seen particularly from Figures 6 and 7, the current conducting device 156 comprises in the region of the input channel 122 of the filter device 124, for example, three current elements 158c, by means of the which direction and/or speed of the raw gas stream to be fed through the raw gas well 114 to the raw gas chamber 136 can be controlled and/or regulated.
[0309] The chain elements 158c, for this purpose, can be moved in a horizontal and/or vertical direction and/or rotated around an axis of rotation 186.
[0310] In the embodiment shown in Figures 6 and 7 of the current conducting device 156, the current elements 158c are formed in the region of the inlet channel 122 as guide plates 188 and form limiting walls 190 of the inlet channel 122.
[0311] Particularly by a movement of the current elements 158c relative to one another, a cross-section of the inlet channel 122 can thereby be varied, with which, in particular, the velocity of the raw gas stream can be adjusted. conducted by input channel 122.
[0312] Furthermore, by means of the current elements 158c it can be adjusted at what point the raw gas stream is conducted to the raw gas chamber 136 and at what depth the gas stream reaches the funnel section 140 of the filtering device. 124. Thereby, it can also be adjusted to what extent filter aid material from filter aid material receiving vessel 146 is swirled and entrained by the raw gas stream.
[0313] By a modification of the angle, formed by the current elements 158c to each other and/or with other boundary walls 190 of the inlet channel 122 and/or with boundary walls 132 of the filter device 124 and/or with walls of limiting 168 of the raw gas well 114, it may be prevented or favored that in the filtering operation of the filter device 124 back currents are formed along the stream elements 158c.
[0314] Return streams can serve to deposit filter aid material on at least one of the stream elements 158 to a breaking edge, to protect at least that stream element 158 against contamination with overspray particles. On the other hand, preventing a backflow can be favorable for a maintenance operation of the filtering device 124, since in this way an automatic cleaning of filtering auxiliary material can take place without the need for cleaning. manual.
[0315] A modification of the position and/or orientation of at least one current element 158c, which then forms a variable current element 158c, can take place by means of a drive device (not shown), for example, by through an electric motor. It can further be provided that at least one current element 258c can be extended and/or shortened, for example, per motor.
[0316] Preferably, at least one of the chain elements 158c formed as guide plate 188, is formed in such a way that the inlet channel 122 of the filter device 124, optionally, can be completely closed. In this way, in particular, a backflow of filtering aid material to the raw gas well 144 and subsequently to the varnishing booth 102 can be prevented.
[0317] With this, an undesirable penetration of cleaning agents and/or other fluids in the raw gas chamber 136 of the filter device 124 can also be prevented, which can be advantageous in the wet cleaning of the varnishing booth 102 or, in case of sprinkler activation, in case of fire.
[0318] Particularly, a horizontal displacement of at least one current element 158 is preferably performed independently of the remaining components of the filtration device 124.
[0319] In this way, for example, by means of a chain element 158 arranged offset with respect to the funnel section 140 of the filter device 124, it can be caused that the raw gas stream does not run along the enclosure wall 132 of the funnel section 140 of the filter device 124, but directly at the center of the filter aid material receiving container 146, particularly directly at the center of the filter aid material introducing device 148, so that a particularly large amount of filter aid material can be received and transported to filter elements 142 of filter device 124.
[0320] Figure 8 shows an enlarged perspective representation of the filtering aid material receiving container 146 and the filtering aid material introduction device 148 arranged therein, of the varnishing plant 100.
[0321] As can be seen in this and in Figures 9 and 10, the filtering aid material introduction device 148 comprises a rotating shaft 194 by means of a drive device 192, which comprises, for example, an electric motor, which extends substantially parallel to the direction of transport 110 of the conveyor device 108 of the varnishing plant 100 and is rotatable about an axis of rotation 196, which is also aligned parallel to the direction of transport 110 of the conveyor device 108 of the plant. of varnishing 100.
[0322] A rotation speed of the shaft 194 of the filtering auxiliary material introduction device 148 is controlled and/or regulated, in this case, with a control device 198.
[0323] On the axis 194 of the filtering auxiliary material introducing device 148 are arranged a plurality of treatment elements 200, which are formed, for example, as propellers 202, so that the filtering auxiliary material introducing device 148 may be designated as a propeller mixer.204.
[0324] The filter aid material introducing device 148 is a treatment device 150 for the mechanical treatment of filter aid material disposed in the filter aid material receiving vessel 146 or a mixture of filter aid material and particles of overspray, disposed in the filter aid material receiving container 146.
[0325] The treatment device 150 serves, in this case, for the transport of filter aid material inside the filter aid material receiving container 146. The treatment elements 200 of the treatment device 150 are therefore conveyor elements 206 .
[0326] The treatment elements 200 of the treatment device 150 also serve for swirling filter aid material or a mixture of filter aid material and particles of overspray, so that the treatment elements 200 of the treatment device 150 form decompacting elements.
[0327] Finally, the treatment elements 200 of the treatment device 150 also serve for mixing filter aid material disposed in the electrical network or a mixture of filter aid material and particles of excess spray disposed in the receiving container. filter aid material, such that the treatment elements 200 of the treatment device 150 also form mixing elements 210.
[0328] In principle, the treatment elements 200 of the treatment device 150 can have different shapes depending on the task.
[0329] In the embodiment shown in Figures 8 to 10 of the device for introducing filtering auxiliary material 148, however, a substantially unitary form of the treatment elements 200 is provided.
[0330] Only the alignment of the treatment elements 100 in a treatment region 212, is not unitary with respect to the axis of rotation 196 of the filtering auxiliary material introduction device 148 for all the treatment elements 200. treatment elements 200 in the treatment regions 22 are rotatably arranged with respect to the axis of rotation 196 of the filtering auxiliary material introduction device 148, such that by a rotation of the axis 194 and therefore of the treatment elements 200 in around the axis of rotation 196, filter aid material or a mixture of filter aid material and overspray particles disposed in the filter aid material receiving container 146, on the one hand, can be conveyed to an outlet 214 of the container. aid material receiving vessel 146 disposed substantially centrally in the filter aid material receiving vessel 146 .
[0331] By means of the outlet 214 of the filter aid material receiving container 146, filter aid material or a mixture of filter aid material and particles of overspray can be withdrawn from the filter aid material receiving container 146 This occurs particularly when the specific reception capacity of the filter aid material or the mixture of filter aid material and overspray particles, which is a measure of how much overspray can still be received by means of the filter aid material of the mixture of filter aid material and overspray particles, for a safe filtering operation of the filter device 124 is no longer sufficient.
[0332] In particular, to prevent an obstruction of the outlet 214 in the discharge of filter aid material or a mixture of filter aid material and overspray particles, for example, due to the formation of agglomerates, the outlet 214 is provided with a safety device 216, which is formed, for example, by two ribs 218 arranged in the shape of a cross. By means of the safety device 216, it can be prevented, in particular, that too large agglomerates of filtering aid material and excess varnish spray reach the outlet 214 and obstruct it.
[0333] As can be seen particularly in Figure 10, the filtering aid material receiving container 146 further comprises a compressed air connection 220, through which compressed air can be fed to the outlet 214. serve, on the one hand, for the removal of an obstruction at the outlet 214 and, on the other hand, for the actuation of filter aid material or a mixture of filter aid material and particles of overspray, to be discharged through the outlet 214.
[0334] The varnishing installation 100 described above works as follows:
[0335] In the varnishing booth 102 of the varnishing plant 100 a workpiece 104 is transported by means of the conveyor device 108 in the transport direction 110 and varnished by means of painting robots, not shown.
[0336] An air stream guided by the varnishing booth 102 is hereby requested with overspray and fed together with the overspray to the filter installation 106 as raw gas stream through raw gas well 114. raw gas well 114 guides the raw gas stream towards filtering devices 12.
[0337] By means of inlet channels 122, the raw gas stream is then distributed over the raw gas chambers 136 of the filter devices 124.
[0338] The current-carrying devices 15 of the filtering devices 124 serve for the selected supply of the raw gas stream to the raw gas chambers 136, and in particular, by means of the adjustable current elements 158, a selected supply of the raw gas stream to the filter aid material receiving containers 146 and the filter aid material introduction devices 148 disposed therein.
[0339] Thereby, filter aid material can be swirled from a filter aid material receiving vessel 146 and received by the raw gas stream.
[0340] Already during the permeation of a raw gas chamber 136, particles of paint overspray existing in the raw gas stream are deposited on particles of filtering aid material. Such agglomerates and overspray particles not yet deposited on the filter aid material particles are then fed to filter elements 142 of filter devices 124 and deposited therein on a protective layer formed of filter aid material.
[0341] The raw gas stream released in this way from overspray particles is guided as a pure gas stream through the pure gas line 160 from the pure gas chamber 144 to the pure gas collector channel 170 and, in this case, conditioned by means of the conditioning device, for example, heated, cooled, moistened and/or dehydrated.
[0342] In the output region 176 of the pure gas collector channel 170, the pure gas streams of various filtering devices 124 are mixed.
[0343] By means of the fans 182 in the dividing wall 180 of the pure gas collecting channel 170, the pure gas is then fed to the discharge region 178 of the pure gas collecting channel 170 and subsequently fed again by means of a device for supplying ambient air (not shown) to the lacquering booth 102 of the lacquering installation 100.
[0344] Particularly, during this ambient air operation, in which the gas stream is guided several times by the varnishing booth 102, by means of the current conducting device 156, the raw gas feed to the raw gas chamber can be influenced 136, to adapt the raw gas stream in filter devices 124 to a momentary volume stream of the raw gas stream in raw gas well 114.
[0345] Particularly, for this purpose, at least one variable current element 158 is adapted.
[0346] It may be particularly advantageous when at least one variable current element 158 is rotatably formed around the axis of rotation 186 and has a mass, which enables the raw gas stream guided by the inlet channel 122 to deflect the element. of chain 158 from a rest position, in which the chain element 158 is aligned, for example, vertically.
[0347] The current element 158, in passing through the inlet channel 122, is then automatically moved by means of the raw gas stream, so that a cross section of the inlet channel 122 automatically adapts, without a separate control, to a prevailing volume stream at the time of the raw gas stream.
[0348] Thereby, an advantageous swirling of filter aid material 146 and an advantageous permeation of the raw gas chamber 136 can be obtained particularly for the safe separation of overspray particles from the raw gas stream.
[0349] The filter aid material or a mixture of filter aid material and excess spray particles disposed in the filter aid material receiving container 146, is mixed, swirled and, at the same time, conveyed to the container outlet filter aid material receiving device 146 by means of filter aid material introducing device 148 formed as treatment device 150, by rotating the treatment elements 150 of the treatment device 150 by means of the axis 194 about the axis of rotation 196.
[0350] By mixing the filter aid material or the mixture of filter aid material and overspray particles, an unaltered quality, particularly an unaltered specific receiving capacity, of the filter aid material fed to the gas stream can be ensured gross.
[0351] By swirling the filter aid material or the mixture of filter aid material and overspray particles it can be ensured that the raw gas stream is always fed a sufficient amount of filter aid material.
[0352] By transporting the filter aid material or the mixture of filter aid material and overspray particles towards the outlet 214 of the receiving container 146, filter aid material too heavily contaminated with overspray particles may be disposed of in a particularly simple way with the outlet 24 and through this outlet 24, be removed from the filter aid material receiving container 146,
[0353] Particularly when filter aid material has been removed from the filter aid material receiving container 146, it can be provided that through the feed device 154 fresh filter aid material, not loaded with particles of overspray fed to the section funnel 140 of filter device 124 and therewith to filter aid material receiving container 146.
[0354] An alternative embodiment of a filtering aid material introduction device 148 shown in Figure 11 differs from the embodiment shown in Figures 1 to 10 substantially in that in addition to the treatment elements 200, which form carrier elements 206 , decompacting elements 208 and, at the same time, mixing elements 210, milling plates 222 are provided, by means of which agglomerates of filter aid material and particles of overspray can be disintegrated and thus a grain size Mixing medium of filter aid material and overspray particles can be reduced.
[0355] A grinding plate 222 is, for example, a disc mounted eccentrically on the shaft 194.
[0356] By the use of grinding plates 222, as additional treatment elements 200 of the treatment device 150, a mixture of filter aid material and overspray particles can be used for a longer period for a filtration operation. filtration device 124.
[0357] Otherwise, the modality shown in Figure 11 of the device for introducing filtering auxiliary material 148, with regard to construction and function, coincides with the modalities shown in Figures 1 to 10, so that, in this sense, it is reference is made to their description above.
[0358] Another alternative modality shown in Figure 12 of the filtering aid material introduction device 148 differs from the modality shown in Figure 11 in that for crushing agglomerates of filtering aid material and particles of excess spraying do not grinding plates 222 are provided, but grinding balls 224, not connected with axis 224. These grinding balls 224 are moved back and forth by rotating the treatment elements 200 of the treatment device 150 about the axis of rotation. 196 of shaft 194 in filter aid material receiving vessel 146, so that the desired effect of the mechanical treatment of the mixture of filter aid material and overspray particles is by an abrasive action of grinding balls 224.
[0359] Otherwise, the mode shown in Figure 12 of a device for introducing filtering auxiliary material 148, with regard to construction and function, coincides with the embodiments shown in Figures 1 to 10, so that, in this sense , reference is made to the above description.
[0360] An embodiment shown in Figure 13 of a conditioning device 172 comprises a cooling device 230, two drop separating devices 232 and a wetting device 232.
[0361] With respect to a direction of passage 240 of the conditioning device 172, the cooling device 230, a drop separating device 232, the wetting device 234 and the other drop separating device 232 are arranged successively. .
[0362] A collecting bowl 236 is arranged, with respect to a direction of gravity 238, below the cooling device 230, the drop separator devices 232 and the wetting device.
[0363] By means of the sump 236, in the operation of the conditioning device 172, condensate formed in the refrigeration device 230, drops of liquid separated by means of the droplet separation device 232 and liquid, which was distributed by the wetting device, but which has not been received by the gas stream, can be collected.
[0364] The sump bowl 236 is therefore a sump bowl 236 in common for all the conditioning elements of the conditioning device 172.
[0365] The conditioning device 172 therefore comprises a liquid handling system 242 for handling liquids formed or used in the operation of the conditioning device, which comprises the collecting trough 236.
[0366] The conditioning device 172 shown in Figure 13 works as follows:
[0367] When a gas stream permeates the conditioning device 172 in the direction of passage 240, it is cooled by means of the cooling device 230. In this case, a condensate may form, which in the direction of gravity flows downwards , along the cooling device 230, to the sump 236.
[0368] The stream of gas cooled by means of the cooling device 230 is subsequently guided by a first drop separator 232, in order to be able to separate droplets that are in the gas stream. Also in this case, liquid accumulates, which flows in the direction of gravity 238 downwards to the sump 236.
[0369] By means of the wetting device 234, arranged in the direction of passage 240, downstream of the first drop separating device 232, the gas stream is moistened. For example, liquid is sprayed into the gas stream. Liquid not received by the gas stream is also collected with the sump 236.
[0370] The other drop separation device 232 arranged with respect to the permeation direction 240, downstream of the wetting device 234, serves again for the separation of droplets from the gas stream. Also in this drop separating device 232, during the operation of the conditioning device, 172 drops of liquid accumulate, which in the direction of gravity flow downwards into the collecting vessel 236.
[0371] All the liquid used or formed in the operation of the conditioning device 172 can therefore be captured by the collection bowl 236. The collection bowl 236 therefore forms a component of the liquid handling system 242 in common with the conditioning device .
[0372] In another embodiment (not shown) of a conditioning device 172, the wetting device 234 is arranged directly downstream of the cooling device 230. By means of the wetting device 234, in this case also the cooling device 230 can be moistened with liquid. Thereby, the efficiency of the conditioning device 172 can be increased in wetting the gas stream guided by the conditioning device 172.
[0373] The above-described embodiments of conditioning devices 172 are particularly suitable for use in a varnishing installation 100, particularly a filtration installation 106 of a varnishing installation 100, for example, in a filtration module 184 of an installation of filtration 106.
[0374] An alternative embodiment shown in Figures 14 and 15 of a varnishing installation 100 differs from the embodiment shown in Figures 1 to 13 substantially in that the conditioning device 172 is arranged in relation to a current direction. of the pure gas stream downstream of the fan 182,
[0375] The conditioning device 172 is arranged, in this case, particularly above a partition wall 180 of the pure gas collecting channel 170.
[0376] The filtration installation 106 of the embodiment shown in Figures 14 and 15 of a varnishing installation 100 preferably has a height H of a bottom 244, on which the varnishing installation 100 is arranged, up to a plane of a grid 246, which separates the paint booth 102 from the filtration plant 106, measuring approximately 6 m. A width B of the filter installation 106 is preferably approximately 5 m.
[0377] As can be seen particularly from Figure 15, in the embodiment shown in Figures 14 and 15 of a varnishing installation 100, it is provided that the filtration installation 106 comprises four filtering devices 124.
[0378] The pure gas lines 160 of the individual filter devices 124 exit below the dividing wall 180 of the pure gas collecting channel 170 in the pure gas collecting channel 170 and are guided by means of a fan 182 to the region above the wall partition 180 of the pure gas collecting channel 170. The fan 182 comprises, for this purpose, a movable wheel 247, which can be driven by means of a drive 249.
[0379] The axis of rotation of the movable wheel 247 of the fan 182 may be aligned substantially horizontally and transversely, preferably substantially perpendicularly, to the longitudinal direction of the varnishing booth 102 and/or the transport direction 110.
[0380] The drive 249 of the movable wheel 247 may be arranged in a transverse direction directed perpendicularly to the longitudinal direction of the varnishing booth 102 and/or perpendicularly to the transport direction 110, laterally to the side of the fan 182, particularly, laterally to the side of the movable wheel 247.
[0381] The drive 249 of the movable wheel 247 may be arranged at least partially, preferably substantially completely, outside the base surface of the paint booth 102 or outside a vertical projection of the base surface of the paint booth 102.
[0382] The axis of rotation of the movable wheel 247 of the fan 182, however, may also be aligned in another way, for example, substantially horizontally and substantially parallel to the longitudinal direction of the paint booth 102 and/or the direction of transport 110. In addition, the axis of rotation of the movable wheel 247 may also be aligned substantially vertically.
[0383] The drive 249 of the movable wheel 247 can be arranged in the longitudinal direction of the varnishing booth 102 and in the transport direction 110, before or after the fan 182.
[0384] The drive 249 of the movable wheel 247 may also be disposed vertically below or above the fan 182.
[0385] The drive 249 of the movable wheel 247 may be disposed at least partially, preferably substantially completely, within the base surface of the paint booth 102 or within a vertical projection of the base surface of the paint booth 102.
[0386] In the region above the dividing wall 180 of the pure gas collecting channel 170 is arranged the conditioning device 172, by means of which the pure gas stream guided in the pure gas collecting channel 170 can be conditioned.
[0387] A total length L of the filtering installation 106 of the varnishing installation 100 according to the embodiment shown in Figures 14 and 15 amounts, for example, to approximately 10 m.
[0388] Otherwise, the fourth mode shown in Figures 14 and 15 of a varnishing installation 100 coincides, with regard to construction and function, with the varnishing installation 100 shown in Figures 1 to 13, so that it is done reference in this sense to the description of the same above.
[0389] An alternative modality shown in Figure 16 of a varnishing installation 100 differs from the modality shown in Figures 14 and 15, substantially, in that only two filter devices 124 and the filter installation 106 of the installation are provided. coating 100 has a length L of approximately 6 m.
[0390] Otherwise, the alternative modality shown in Figure 16 of a varnishing installation, with regard to construction and function, coincides with the modality shown in Figures 14 and 15, so that, in this sense, reference is made to the description of them above.
[0391] Another alternative embodiment of a varnishing installation 100 shown in Figures 17 and 18 differs from the embodiment shown in Figures 14 and 15 substantially in that the pure gas lines 160 of the filter devices 124, departing of the pure gas chambers 144 of the filter devices 124 are guided in a substantially horizontal direction and substantially perpendicular to the transport direction 110 of the filter device 108 to the pure gas collecting channel 170.
[0392] Therefore, in the modality of a varnishing installation 100 shown in Figures 17 and 18, the pure gas lines 160 are not disposed below the raw gas well 114.
[0393] In contrast, the pure gas lines 160 pass through the raw gas well 114 in the upper end region 116 of the raw gas well 114.
[0394] A pure gas line 160, running through the raw gas well 114, comprises a section that is disposed within the raw gas well 114, and may comprise one or more sections, which are disposed outside the raw gas well 114.
[0395] The lines of pure gas 160 exit, in this case, in the region of the collecting channel of pure gas 170, which is arranged above the dividing wall 180 of the collecting channel of pure gas 170.
[0396] But it can also be provided that at least one of the pure gas lines 160 is disposed at another point between the lower end 120 and the upper end 116 of the raw gas well 114 or above the raw gas well 114, preferably below the bottom of the paint booth 111.
[0397] By means of the fan 182, the stream of pure gas accumulated above the dividing wall 180 of the pure gas collecting channel 170 is transported to the region below the dividing wall 180 of the pure gas collecting channel 170.
[0398] The conditioning device 172 is arranged below the dividing wall 180 in the pure gas collecting channel 170, so that the pure gas stream guided below the dividing wall 180 of the pure gas collecting channel 170 can be conditioned by means of the conditioning device 172.
[0399] As can be seen particularly from Figure 18, in the modality of the varnishing installation 100 shown in Figures 17 and 18, five filter devices 124 are provided.
[0400] Otherwise, the modality shown in Figures 17 and 18 of a varnishing installation 100, with regard to construction and function, coincides with the modality shown in Figures 14 and 15, so that, in this sense, it is made reference to their description above.
[0401] Another alternative embodiment of a varnishing installation 100 shown in Figure 19 differs from the embodiment shown in Figures 17 and 18 substantially by the fact that only three filtration devices 124 are provided.
[0402] The length L of the filtration installation 106 of the varnishing installation 100 is, in this case, approximately 6 m.
[0403] Otherwise, the modality shown in Figure 19 of a varnishing installation 100, with regard to construction and function, coincides with the modality shown in Figures 17 and 18, so that, in this sense, reference is made to the description of them above.
[0404] Figure 20 is a schematic representation to illustrate the operating mode of the different modalities of varnishing installations 100.
[0405] The air required for the operation of the varnishing installation 100 is guided in an ambient air conduction.
[0406] In this case, the air is guided to the varnishing booth 102 as a stream of pure gas, firstly, by a pressure chamber 248 of the varnishing installation 100.
[0407] In the varnishing booth 102 a workpiece 104 is varnished, with which the stream of pure gas is requested with excess varnish spray.
[0408] The gas stream contaminated in this way is fed as raw gas stream to the filtration installation 106 and there released from overspray of wet varnish, so that again a stream of pure gas is obtained.
[0409] Purification occurs, in this case, for example, by means of three filtration devices 124.
[0410] The obtained pure gas streams are fed through pure gas lines 160 to a pure gas collector channel 170.
[0411] By means of a single or by means of two collecting channels 170, the accumulated pure gas stream is finally fed to a conditioning device 172 and conditioned, so that it can again be fed through the pressure chamber 248 to the varnishing booth 102 of the varnishing installation 100.
[0412] In particular, in order, in the event of damage to a filtering device 124, to prevent the penetration of filtering aid material into the conditioning device 172, at least one safety filter 174 is provided.
[0413] Due to its function, the safety filter 174 can also be referred to as a surveillance filter and is particularly useful for safety in the event of a filter failure.
[0414] In principle, it can be provided that safety filters 174 are arranged throughout the pure gas line 160. The safety filters 174 may be arranged, in this case, on the side of the filter device 124, with respect to the central longitudinal plane , vertical, of the varnishing installation 100, i.e. before an intersection 250 of the longitudinal center plane 126, vertical, or on the side of the pure gas collecting channel 170, i.e. after the intersection 250 of the longitudinal center plane 126, vertical .
[0415] Alternatively or in addition to this, it can be provided that at least one safety filter 174 is arranged in the pure gas collecting channel 170.
[0416] In this case, depending on the configuration of the pure gas collecting channel 170, a safety filter 174 can be arranged before or after the crossing 250 of the longitudinal center plane 126, vertical, of the varnishing installation 100.
[0417] Particularly when the varnishing installation 100 comprises a channel connection 252, which can be formed as a piece of channel or a connecting opening, it can be provided that a safety filter 174 is arranged before or after the channel connection 252.
[0418] The channel connection can be arranged, in this case, before or after the crossing 250 of the longitudinal center plane 126, vertical.
[0419] The indications "before" and "after" in this case always refer to the current direction of the pure gas stream or the raw gas stream.
[0420] To drive the air stream, particularly the pure gas stream and the raw gas stream, a fan 182 can be provided in common, for example, in the pure gas collecting channel 170.
[0421] Alternatively or in addition to this, it can be provided that a fan is arranged in a channel connection 252 within an intersection 250 of the longitudinal center plane 126, vertical, and/or in a pure gas line 160. In particular, provision can be made for a fan 182 to be arranged in each pure gas line 160.
[0422] The conditioning device 172 may be arranged for conditioning the entire stream of pure gas in the pure gas collector channel 170.
[0423] Alternatively or in addition to this, it may be provided that in each pure gas line 160 a conditioning device 172 is arranged.
[0424] In particular, when several conditioning devices 172 are provided, it can be provided that each conditioning device 172 conditions all the parameters of the gas stream, i.e. that the gas stream is conditioned, particularly with regard to its temperature and its humidity of the air. Alternatively, it can be provided that by means of the conditioning devices 172 different parameters are conditioned, i.e., that, for example, by means of a conditioning device 172 a wetting process is carried out and by means of another device conditioning 172, a pure gas stream heating. By feeding the pure gas streams to the pure gas collector channel 170 then, preferably, a fully conditioned total air stream is then obtained.
[0425] In particular, when the varnishing installation 100 comprises a channel connection 252, it can be provided that the filtration installation 106 comprises two pure gas collecting channels 170, namely, a pure gas collecting channel 170 before the connection of channel 252 and a pure gas collector channel 170 after channel 252 connection.

权利要求:
Claims (21)
[0001]
1. Varnishing installation for varnishing workpieces (104), characterized in that it comprises: - a varnishing booth (102), in which workpieces (104) can be varnished with varnish; - a conveyor device (108), by means of which the workpieces (104) to be lacquered (110) can be transported through the lacquering booth (102); - a separation and/or filtration installation (106), for purifying a stream of raw gas, which is leaving the varnishing booth (102), and which has received excess spraying of varnish in the varnishing booth (102), in that the separation and/or filtration installation (106) comprises at least two filtration devices (124) for separating the lacquer spray surplus from the raw gas stream and - at least two pure gas lines (160) for the raw gas streams. pure gas, which can be obtained by purifying the raw gas stream by means of the at least two filtering devices (124), the separation and/or filtration plant (106) comprising at least one pure gas line (160 ), which is arranged at least in part below a raw gas well (114), an inlet opening (118) of the raw gas well (114) being arranged with respect to a transport direction (110) horizontal that extends perpendicularly in the substantive direction. centrally below the paint booth (102).
[0002]
2. Varnishing installation according to claim 1, characterized in that the filtration installation (106) comprises a pure gas line (160), which crosses a raw gas well (114).
[0003]
3. Varnishing plant according to claim 1 or 2, characterized in that at least two filtering devices (124) are arranged on the same side of the raw gas well (114) in relation to a central longitudinal plane (126 ) vertical of the paint booth (102).
[0004]
4. Varnishing installation according to claim 3, characterized in that all filtering devices (124) of the filtering installation (106) are arranged on the same side of the raw gas well (114) with respect to a plane center longitudinal (126) vertical of the paint booth (102).
[0005]
5. Varnishing installation according to claim 1 or 2, characterized in that at least one pure gas line (160) runs below the raw gas well (114) and transversely to the direction of transport (110).
[0006]
6. Varnishing installation according to claim 1 or 2, characterized in that the filtration installation (106) comprises at least one pure gas collecting channel (170), in which at least two pure gas lines lead ( 160) of the filtration plant (106).
[0007]
7. Varnishing installation according to claim 1 or 2, characterized in that the filtration installation (106) comprises at least one pure gas collecting channel (170), in which at least two pure gas lines are conducted (160) of the filtering installation (106), at least one pure gas collecting channel (170) on the one hand and at least two filtering devices (124) on the other hand, being arranged on opposite sides (128, 130 ) of the filtration system (106) with respect to a longitudinal center plane (126) of the paint booth (102).
[0008]
8. Varnishing plant according to claim 1 or 2, characterized in that at least one police filter is provided in at least one pure gas line (160) to prevent damage to a filter device (124) due to unwanted penetration of auxiliary filter material and/or excess spraying of particles in areas of the filtration plant.
[0009]
9. Varnishing plant according to claim 1 or 2, characterized in that at least one filtering device (124) is accessible, so that a person can enter an internal space of at least one filtering device ( 124).
[0010]
10. Varnishing plant according to claim 1 or 2, characterized in that a lower end (120) of the raw gas well (114) is adjacent to at least one inlet channel (122) of at least one device filter (124) of the filter system (106).
[0011]
11. Varnishing plant according to claim 1 or 2, characterized in that at least one pure gas line (160) is arranged, at least in parts, within an external contour (163) of at least one device of filtration (124).
[0012]
12. Varnishing installation according to claim 1 or 2, characterized in that the filtration installation (106) comprises at least one pure gas collecting channel (170), in which at least two pure gas lines are conducted (160) of the filtration installation (106), wherein at least one pure gas collecting channel (170) extends at least approximately parallel to the transport direction (110).
[0013]
13. Varnishing installation according to claim 1 or 2, characterized in that the filtration installation (106) comprises at least one raw gas well (114) which, with respect to a horizontal direction, extends perpendicularly to the direction. of transport (110), is arranged substantially in the center below the varnishing booth (102).
[0014]
14. Varnishing installation according to claim 1 or 2, characterized in that the filtration installation (106) comprises at least one pure gas line (160), at least one fan (182), at least one device conditioning (172) and/or at least one pure gas collection channel (170), which are arranged within a vertical projection of the paint booth (102), below the paint booth (102).
[0015]
15. Varnishing installation according to claim 1 or 2, characterized in that the filtering installation (106) comprises at least one filtering module (184), which comprises at least one filtering device (124), at least at least one pure gas line (160), at least one conditioning device (172) and/or at least one fan (182).
[0016]
16. Varnishing plant according to claim 1 or 2, characterized in that at least one filtering device (124) for separating varnish spray surplus from the raw gas stream containing particles of spray surplus comprises the following: - a housing (134) which borders a raw gas chamber (136) of the filter device (124) and in which at least one filter element of the filter device (124) is arranged; - at least one inlet channel (122) for inputting the raw gas stream into the raw gas chamber (136) of the filter device (124); and - at least one filter aid material introduction device (148) for introducing filter aid material into the raw gas stream.
[0017]
17. Varnishing plant according to claim 16, characterized in that at least one device for introducing filtering auxiliary material (148) comprises a treatment device (150) for the mechanical treatment of filtering auxiliary material and/ or a mixture of filter aid material and overspray particles.
[0018]
18. Varnishing plant according to claim 16, characterized in that the at least one device for introducing filtering aid (148) comprises a current conducting device (156) for influencing the current of the gas stream gross, which comprises at least one chain element (158c) variable, with regard to shape and/or arrangement and/or alignment, which is formed as guide plate (188) arranged adjustably and/or displaceable.
[0019]
19. Varnishing plant according to claim 16, characterized in that the filtering device (124) comprises a control device (198), by means of which an introduction capacity of the at least one auxiliary material introduction device filtration (148) is controllable and/or adjustable.
[0020]
20. Varnishing installation according to claim 1 or 2, characterized in that at least one filtering device (124) of the separation and/or filtering installation (106) comprises at least one current conducting device (156 ), which is arranged in the raw gas chamber (136) of the filter device (124) and by means of which the raw gas stream flowing through at least one inlet channel (122) of the filter device ( 124) to the raw gas chamber (136).
[0021]
21. Varnishing installation according to claim 1 or 2, characterized in that the filtration installation (106) comprises a conditioning device (172), which comprises a cooling device (230), a wetting device ( 234) and/or a drop separating device (232) as well as a liquid handling system (242), in common, for the cooling device (230), the wetting device (234) and/or the drop separation device (232).

类似技术:

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同族专利:

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公开号 | 公开日

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ES2886550T3|2021-12-20|

---

MY165021A|2018-02-28|

---

PT2736655T|2021-09-28|

---

JP2014223626A|2014-12-04|

---

EP2736653A1|2014-06-04|

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KR20190047113A|2019-05-07|

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CA2842258C|2020-08-04|

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MX344794B|2017-01-05|

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WO2013013847A1|2013-01-31|

---

RU2615521C2|2017-04-05|

---

JP2013545591A|2013-12-26|

---

EP2736655A1|2014-06-04|

---

KR101974410B1|2019-05-02|

---

RU2014101133A|2015-09-10|

---

CN103702769A|2014-04-02|

---

JP2013544627A|2013-12-19|

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EP3741464A1|2020-11-25|

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US9364845B2|2016-06-14|

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MX2014000902A|2014-02-19|

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PL2736655T3|2021-12-20|

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CN106039855A|2016-10-26|

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JP5581450B2|2014-08-27|

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KR102056693B1|2019-12-17|

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US20140134339A1|2014-05-15|

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EP2736655B1|2021-08-18|

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CA2842258A1|2013-01-31|

---

BR112014001550A2|2017-02-14|

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CN106039855B|2018-06-29|

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KR20140042823A|2014-04-07|

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WO2013013846A1|2013-01-31|

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CN103702771B|2016-08-17|

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CN103702771A|2014-04-02|

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US20160250657A1|2016-09-01|

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ZA201400201B|2015-04-29|

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DE102013222301A1|2013-11-04|2015-05-07|Dürr Systems GmbH|Filter plant, paint shop and process for the separation of impurities|

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GB2530070B|2014-09-12|2017-05-17|Spraybooth Tech Ltd|Workshop installations comprising a spray booth|

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JP6184395B2|2014-11-20|2017-08-23|株式会社大気社|Paint exhaust treatment method and paint exhaust treatment equipment|

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DE102015104376A1|2015-03-24|2016-09-29|M. Braun Inertgas-Systeme Gmbh|Clean gas cabin|

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DE102015008844A1|2015-07-13|2017-01-19|Eisenmann Se|Device for separating overspray and surface treatment plant|

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DE102015214706A1|2015-07-31|2017-02-02|Dürr Systems Ag|Treatment plant and method for treating workpieces|

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DE102015214711A1|2015-07-31|2017-02-02|Dürr Systems Ag|Treatment plant and method for treating workpieces|

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DE102015015234A1|2015-11-25|2017-06-01|Eisenmann Se|Method for providing filter modules, computer program product and apparatus for process control|

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ITUB20156098A1|2015-12-02|2017-06-02|Geico Spa|Spray booth with overspray removal system, removal method and implant|

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CN108816596B|2018-05-17|2021-03-16|南通永大管业股份有限公司|Suction coating corrosion prevention device for inner surface of pipe for oil exploitation|

法律状态:
2017-04-04| B25D| Requested change of name of applicant approved|Owner name: DUERR SYSTEMS GMBH (DE) |

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2018-03-27| B15K| Others concerning applications: alteration of classification|Ipc: B05B 15/00 (2018.01), B01D 46/00 (2006.01), B05B 1 |

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2018-12-11| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

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2020-03-17| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

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2021-06-08| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

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2021-08-03| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 03/05/2012, OBSERVADAS AS CONDICOES LEGAIS. |

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2021-12-21| B25L| Entry of change of name and/or headquarter and transfer of application, patent and certificate of addition of invention: publication cancelled|Owner name: DUERR SYSTEMS GMBH (DE) Free format text: ANULADA A PUBLICACAO CODIGO 25.4 NA RPI NO 2413 DE 04/04/2017 POR TER SIDO INDEVIDA. |

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2022-01-04| B25D| Requested change of name of applicant approved|Owner name: DUERR SYSTEMS AG (DE) |

优先权:

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申请号 | 申请日 | 专利标题

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DE102011079951.6|2011-07-27|

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DE102011079951A|DE102011079951A1|2011-07-27|2011-07-27|Filter system for use in paint shop for coating workpieces such as vehicle body, has processing device that is provided for processing paint overspray and filter aid material|

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DE102011052298A|DE102011052298A1|2011-07-29|2011-07-29|Filter system for use in paint shop for coating workpieces such as vehicle body, has processing device that is provided for processing paint overspray and filter aid material|

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DE102011052298.0|2011-07-29|

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PCT/EP2012/058165|WO2013013846A1|2011-07-27|2012-05-03|Painting facility and method for operation a painting facility|

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