• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    FILTER DEVICE, PAINTING CABIN USING THE FILTER DEVICE, AND SIMPLIFIED PAINTING CABIN USING THE FILTER DEVICE. The present invention relates to the distribution of a precoat chemical (P) which is made uniformly in a target gas EA directed to a filter (8). For this purpose, an inlet opening (10) of a filter device (5) is formed as a rectangular or slit-shaped opening extending in the width direction. An accumulation recess (12) is formed at the top edge of the inlet opening (10) to have a profile that opens downwards as seen from the longitudinal direction of the inlet opening (10). The accumulation recess (12) is formed continuously in the longitudinal direction of the intake opening (10). A pre-coating chemical spray nozzle (11) is provided at a predetermined longitudinal position of the inlet opening (10) to launch the pre-coating chemical (P) and the transport gas towards an internal surface depth of the accumulation recess.
    公开号:BR112012021855B1
    申请号:R112012021855-7
    申请日:2010-09-22
    公开日:2021-01-05
    发明作者:Hiroshi Iwakiri
    申请人:Taikisha Ltd.；
    IPC主号:
    专利说明:

    TECHNICAL FIELD
    [0001] The present invention relates to a filter device and a spray booth using the filter device.
    [0002] The filter device includes a filter housed in a device housing, and an inlet opening provided in the device housing for a target gas containing a viscous matter to be captured such as paint mist and oil mist .
    [0003] A pre-coating chemical spray nozzle is provided at the inlet opening to launch a powder-like pre-coating chemical into the filter along with the carrier gas for the target gas flowing in. of the device housing since the intake opening. TECHNICAL BACKGROUND
    [0004] In such a filter device, the spray nozzle of the pre-coating chemical is arranged in the inlet opening with the purpose of reliably mixing the pre-coating chemical with the carrier gas flowing into the housing of the device through the intake opening.
    [0005] In a conventional filter device, as shown in Figure 1 of Patent Document 1, a simple circular or rectangular opening acting as the inlet opening is formed in a plate element forming the housing of the device, and the spray nozzle The pre-coating chemical product is arranged in such an opening to be directed into the device's casing (Prior Art 1).
    [0006] In another conventional filter device shown in Figures 1 and 2 of Patent Document 2, the spray nozzle of the pre-coating chemical product is provided in the vicinity of the inlet opening inside the device housing (Technique Previous 2).
    [0007] On the other hand, an example of the paint booth to capture the paint mist contained in the exhaust air discharged from a paint chamber by the filter is shown in Figures 1 and 15 of Patent Document 3.
    [0008] In the paint booth, as shown in Figure 1 of Patent Document 3 (see Figure 7 of the present application), an exhaust chamber 4 is provided under the painting chamber 2 to receive the exhaust air EA from the painting 2.
    [0009] A pair of guide plates 20 is provided to divide the exhaust chamber 4 into an upper region and a lower region, and a central slot-like gap 21 is formed between the edges of the tip end of the pair of ventilation plates. guide 20.
    [00010] The central slot type 21 extends in a longitudinal direction of the cabin (that is, in a direction of transport of a target object in the painting chamber 2).
    [00011] The lower region formed when compartmenting the exhaust chamber 4 by the guide plates 20 functions as a filter chamber, including a multiplicity of filters disposed there. The multiplicity of filters is arranged in the longitudinal direction of the cabin.
    [00012] The spray nozzle of the precoating chemical 11 is provided on a surface on the back side of one of the guide plates 20 in the vicinity of the central slot type 21 to launch the chemical P from the precoating to the Exhaust air EA that passes through the central gap type slit 21 (Prior Art 3).
    [00013] In the paint booth shown in Figure 15 of Patent Document 3 (see Figure 8 of the present application), vertical plates 22 around the filters 8, together with the guide plates 20 are suspended from the end parts of the guide plates 20. A lower slot type 23 is formed between a lower edge of each vertical plate 22 and the lower part of the discharge chamber 4. The lower slot type 23 also extends in the longitudinal direction of the cab .
    [00014] The pre-coating chemical spray nozzle 11 is provided on a surface on the back side of each of the vertical plates 22 in the vicinity of the lower slit-like gap 23 to launch chemical P from the pre-coating for exhaustion air EA that passes through the lower slot type 23 (Prior Technique 4).
    [00015] More particularly, in these paint booths, the pre-coating chemical P is launched into a high-speed flow of the EA exhaust air that passes through the central slot type 21 or the lower slot type 23 .
    [00016] This allows the pre-coating chemical P to mix with the EA exhaust air evenly with the agitation caused by the high-speed flow of the EA exhaust air, and then allows the EA exhaust air pass through the filters 8. [Prior Art Document]
    [00017] [Patent Document 1] Unexamined Japanese Patent Application Publication No. 53-109274 [Patent Document 2] Japanese Utility Model Publication No. 7-37311. [Patent Document 3] National Unexamined Japanese Patent Application Publication No. 2008-536661 [Patent Document 4] Unexamined Japanese Patent Application Publication No. 2002-336479 [Patent Document 5] Publication of Utility Model - Japanese company No. 62-109765. SUMMARY OF THE INVENTION Technical problem
    [00018] It is often required in the filter device that the inlet opening for the filter device has a rectangular shape or a slit shape that extends towards the width.
    [00019] This is for the uniform passage of the target gas flowing from the inlet opening through the filter provided in the filter device.
    [00020] Otherwise, this is to allow the exhaust air from the spray booth to flow to the filter device evenly and easily over the entire width of the spray chamber as seen from the connected filter device. to the painting booth of Patent Document 4 and the filter device (defroster device) connected to the simplified painting booth of Patent Document 5.
    [00021] In the case mentioned above, however, the following problems have arisen with the arrangement in which the spray nozzle of the pre-coating chemical product is simply provided at the opening acting as the inlet opening as disclosed in the Prior Art 1 (see Figure 1 of Patent Document 1) or the arrangement in which the spray nozzle of the pre-coating chemical is simply supplied in the vicinity of the inlet opening within the device casing as disclosed in the Art Previous 2 (Figures 1 and 2 of Patent Document 2).
    [00022] That is, in such systems, the precoating chemical released from the spray nozzle of the precoating chemical is not evenly distributed in the direction of the width of the inlet opening for the target gas flowing at from the intake opening that extends in the direction of the width. This causes uneven distribution of the precoat chemical in the target gas to pass through the filters, which results in the deficient formation of a precoat layer on the filter.
    [00023] In order to prevent such uneven distribution of the pre-coating chemical, it is necessary to have numerous spray nozzles of pre-coating chemical in the direction of the width (longitudinal direction) of the intake opening at intervals as small as possible. This results in a complicated device and increased manufacturing cost.
    [00024] On the other hand, similar problems have been produced by the painting booths revealed in Prior Art 3 and Prior Art 4 (see Figures 1 and 15 of Patent Document 3, in particular, substantially corresponding to the problems mentioned above). in the filter device with respect to the Prior Art 4).
    [00025] More particularly, in order to mix the pre-coating chemical P released from the spray nozzle of the pre-coating chemical 11 evenly in the longitudinal direction of the cabin with the exhaust air EA that passes through the central breach slit type 21 or the lower slit type 23 extending in the longitudinal direction of the cab, it is necessary to arrange numerous spray nozzles of pre-coated chemical in the longitudinal direction of the cab at intervals as small as possible This also results in a complicated device and increased manufacturing cost.
    [00026] Under the circumstances, the subject of the present invention is to solve the aforementioned problems by employing a rational stirring / mixing system for the precoating chemical launched from the spray nozzle of the precoating chemical . Solution of the problem
    [00027] A first characteristic feature of the present invention resides in a filter device which comprises: A device housing; a filter housed in the device housing; an inlet opening provided in the housing of the device for taking a target gas containing a viscous matter to be captured; and a spray nozzle of the pre-coating chemical provided at the inlet opening to deliver a powder-like pre-coating chemical to the filter together with the carrier gas for the target gas flowing into the housing of the device from the inlet opening, where the inlet opening is a slit or rectangular opening extending in a width direction and provided on a part of the side face of the device housing, in which an accumulation recess is provided in a part of the upper edge of the intake opening and continuously formed in a longitudinal direction of the intake opening, the accumulation recess having a profile that opens downwards as seen from the longitudinal direction of the intake opening; and where the spray nozzle of the pre-coating chemical is disposed in a predetermined position of the inlet opening in the longitudinal direction of the same for the ejection of the pre-coating chemical and carrier gas to an interior surface deep of the accumulation recess.
    [00028] With the aforementioned arrangement, the powdered pre-coating chemical is released together with the carrier gas towards the deep inner surface of the accumulation recess, which can produce swirling accumulation of the launched carrier gas. accompanied by the pre-coating chemical in the accumulation drop for an appropriate period of time, in co-operation with the flow of the target gas in the intake opening that passes through the vicinity of the opening surface of the descending opening of the accumulation recess.
    [00029] Such swirling accumulation allows the pre-coating chemical to disperse, accompanied by agitation, in the longitudinal direction (width direction) of the inlet opening from the position where the spray nozzle of the pre-coating chemical is provided.
    [00030] In this way, the pre-coating chemical is allowed to disperse in the longitudinal direction of the inlet opening and allows the dispersed pre-coating chemical to be gradually carried into the gas-through flow. target at the intake opening from the descending opening of the accumulation recess, as a result of which the pre-coating chemical can be mixed with the target gas.
    [00031] This allows the precoat chemical to mix with the target gas that flows into the device casing from the inlet opening, in a uniform distribution condition in the longitudinal direction of the inlet opening.
    [00032] Furthermore, it is prevented that a series of spray nozzles of the pre-coating chemical are arranged at small intervals in the direction of the width (longitudinal direction) of the intake opening, while the intake opening can be a central slot like a slit or a rectangular opening that extends towards the width according to various requirements.
    [00033] But particularly, only a spray nozzle of the pre-coating chemical product provided at the inlet opening will suffice, or even if the multiplicity of spray nozzles for the pre-coating chemical would be installed in the direction of the width from the inlet opening, the number of spray nozzles can be effectively reduced, ensuring large intervals between the spray nozzles.
    [00034] It should be noted that various shapes such as an arc shape or a polygonal shape can be used as a specific profile of the accumulation recess as seen from the longitudinal direction of the intake opening, and, for example, can be selected depending on the flow rate of the target gas or precoat chemical material.
    [00035] A second characteristic attribute of the present invention specifies a preferred embodiment for carrying out the first characteristic attribute.
    [00036] The second characteristic feature of the present invention is that the accumulation recess defines a part of the upstream edge in a direction of passage of the target gas as a vertical wall suspended upstream.
    [00037] With the aforementioned provision, the precoating chemical and the transport gas in the dispersed condition having reached the upstream edge of the accumulation recess in the direction of the passage of the target gas in the swirling accumulation in the accumulated recess modulation can be guided downwards by the vertical wall suspended upstream.
    [00038] Then, the guide down through the suspended upstream wall allows the pre-coating chemical to positively join the flow of the target gas in the upstream part of the intake opening.
    [00039] As a result, the precoating chemical can be effectively dispersed towards the height (direction of the short side) of the intake opening and mixed with the target gas, in order to achieve a more uniform distribution of the pre-coating chemical in the target gas to pass through the filters.
    [00040] The third characteristic characteristic of the present invention specifies a preferred modality to achieve the first or second attribute, and resides in that the accumulation recess defines a part of the downstream edge in a direction of passage of the target gas like a vertical wall suspended downstream.
    [00041] With the aforementioned arrangement, similarly to the upstream suspended wall noted above, the precoating chemical and the transport gas in the dispersed condition having reached the downstream edge of the accumulation recess in the direction of the passage of the target gas in the vortex-like accumulation in the accumulation recess can be guided downwards by the vertical suspended wall downstream.
    [00042] Then, the guide down through the downstream wall allows the pre-coating chemical to positively join the flow of the target gas in the downstream part of the inlet opening.
    [00043] As a result, the precoating chemical can be effectively dispersed towards the height (direction of the short side) of the intake opening and mixed with the target gas, in order to achieve a more uniform distribution of the pre-coating chemical in the target gas to pass through the filter.
    [00044] When a lower part opposite the recess accumulation is continuously formed in a part of the lower edge of the intake opening in the longitudinal direction of the intake opening in the arrangement according to the first or third characteristic attribute, the following effects can also be achieved.
    [00045] That is, the downward flow produced by the orientation of the upstream suspended wall or by the downstream suspended wall allows an appropriate amount of the precoating chemical mixed with the flow of the target gas through the opening. inlet to reliably reach the aforementioned lower part of the inlet opening, which can form the pre-coating layer on the bottom.
    [00046] As a result, it is effectively prevented by the pre-coating layer at the bottom that the viscous matter to be captured contained in the target gas is adhered to or accumulated at the bottom of the intake opening.
    [00047] In particular, when an inclined bottom part, as described below, is provided to descend to the downstream side in the direction of the destination gas passage, the following effects can also be achieved.
    [00048] That is, the downward flow produced by the orientation of the downstream suspended wall allows part of the precoating chemical to reach the downstream part of the sloping bottom, and a reverse current component (ie, a current component ascending the inclined bottom) to the upstream side next to the inclined bottom allows the pre-coating chemical having reached the downstream part of the inclined wall to be kept in a spread condition on the inclined bottom.
    [00049] This can provide the sloped bottom part in the intake opening, and still maintain the pre-coating chemical layer on the sloped bottom in a stable manner to prevent the viscous matter from attaching to the sloped bottom.
    [00050] A fourth characteristic feature of the present invention specifies a preferred embodiment for achieving one from the first to the third characteristic feature, and resides in that the spray nozzle of the pre-coating chemical has a central jet axis that obliquely crosses the deep inner surface of the accumulation recess.
    [00051] With the aforementioned provision, it is prevented by the dissipation of the collision energy produced by the oblique crossing that the pre-coating chemical released together with transport gas from the spray nozzle of the pre-coating chemical is adhered to or accumulated on the deep inner surface of the accumulation recess.
    [00052] This can steadily and satisfactorily maintain the dispersion of the precoating chemical in the recess accumulation when the humidity of the target gas is high or the coagulability of the precoating chemical is high.
    [00053] Furthermore, in this arrangement, the swirling accumulation of the pre-coating and the transport gas released from the spray nozzle of the pre-coating chemical in the accumulation recess can be promoted by the orientation of the inner surface deep crossing the central axis of the jet of the spray nozzle of the precoating chemical.
    [00054] This can further promote the dispersion of the pre-coating chemical in the accumulation recess in the longitudinal direction of the intake opening.
    [00055] In the implementation of the above, the following provisions can be used so that the central axis of the jet of the spray nozzle of the precoating chemical crosses obliquely the deep inner surface of the accumulation recess.
    [00056] That is, any of the arrangements, namely, the arrangement in which the central axis of the spray nozzle jet of the pre-coating chemical is inclined in relation to the perpendicular direction, the arrangement in which the deep inner surface of the accumulation recess is inclined in relation to the horizontal direction, and the arrangement in which the central axis of the spray nozzle jet of the pre-coating chemical is inclined in relation to the perpendicular direction and the deep internal surface of the accumulation recess is inclined in relation to the horizontal direction can be used.
    [00057] A fifth characteristic feature of the present invention specifies a preferred embodiment for achieving one of the first to fourth characteristic features, and resides in that the spray nozzle of the pre-coating chemical has a jet opening positioned on the side downstream referring to the central part of the accumulation recess in the direction of passage of the target gas in the intake opening.
    [00058] With this arrangement, the swirl-type accumulation area produced by the pre-coating chemical and carrier gas released from the spray nozzle of the pre-coating chemical in the accumulation recess can be more widely formed , in the upstream part (that is, the portion between the edge upstream of the accumulation recess and the spray nozzle of the pre-coating chemical) than in the downstream part, in the direction of the gas- target in the accumulation recess.
    [00059] This allows the area where the precoat chemical is mixed with the target gas that passes through the intake opening to be located on the upstream side of the accumulation recess in the direction of the gas passage. destiny.
    [00060] More particularly, the dispersion of the precoating chemical can be promoted by the location in the target gas in the process of passing through the inlet opening, which further provides the most uniform distribution of the precoating chemical in the gas. destination.
    [00061] A sixth characteristic characteristic of the present invention resides in the fact that an inclined lower part is formed in a part of the lower edge of the intake opening to oppose the accumulation recess and descend to the downstream side in the direction of the passage of the target gas in the intake opening, the lower sloping part being continuously formed in the longitudinal direction of the intake opening.
    [00062] With the aforementioned provision, even if the viscous matter to be captured contained in the target gas is accumulated on the inclined bottom in a condition mixed with the precoating chemical, such matter accumulated in the mixed condition can be quickly removed into the device housing due to the slope of the inclined wall, and in cooperation with the adhesion prevention effect achieved by the pre-coating layer if the pre-coating layer is present at the bottom, as noted above.
    [00063] This can satisfactorily and steadily maintain the functioning of the filter device.
    [00064] A seventh characteristic feature of the present invention specifies a preferred embodiment for achieving the sixth characteristic feature, and lies in the fact that the edge part downstream of the accumulation recess is arranged in a lower position than the part of the upstream edge in the direction of the passage of the target gas to allow a downstream opening formed between the part of the downstream edge of the accumulation recess a part of the underlying downstream edge of the downward sloping part to be arranged in a lower position than an upstream opening formed between the upstream edge part of the accumulation recess and the upstream edge part upstream of the sloping bottom part, and where the filter is arranged in a more higher than the downstream opening within the device housing.
    [00065] With the aforementioned provision, the destination gas is allowed to pass obliquely downwards from the upstream opening in the highest position to the downstream opening in the lowest position in the intake opening, and then , the direction of the target gas flow is drastically changed from the downward to the upward direction. Thus, the target gas is able to pass through filters positioned higher than the opening downstream in the intake opening.
    [00066] More particularly, such a drastic change in direction promotes the dispersion of the pre-coating chemical in the target gas, the pre-coating chemical being mixed with the target gas that passes through the intake opening, and in this way to achieve the most uniform distribution of the precoat chemical in the target gas to pass through the filters.
    [00067] An eighth characteristic feature of the present invention specifies a preferred embodiment for achieving the sixth or seventh characteristic feature, and resides in that the sloping bottom part has a part of the upstream edge functioning as an upright vertical wall extending perpendicularly towards the part of the edge upstream of the accumulation recess in the direction of passage of the target gas in the intake opening.
    [00068] At the upper edge of the intake opening, the speed of passage of the target gas is suppressed by the presence of the accumulation recess (in particular, the presence of the part of the edge upstream of the accumulation recess).
    [00069] According to the aforementioned arrangement, the presence of the vertical wall upstream extends vertically to the part of the edge upstream of the accumulation recess can suppress the speed of passage of the target gas on the side of the lower edge of the intake opening (ie, the sloped bottom side).
    [00070] As a result, the speed of passage of the target gas through the intake opening can be balanced, which can easily and steadily maintain the flow of the target gas into the device housing through the intake opening. and mixing the precoating chemical and the target gas in the inlet opening.
    [00071] A ninth characteristic attribute of the present invention specifies a preferred modality for achieving one of the first to eighth characteristic attributes, and resides in that the filter is placed in a higher position than the inlet opening inside the device housing, and where a transport device is provided at a lower position than the inlet opening under the filter to transport a mixture released and dropped from the filter in the longitudinal direction of the inlet opening and unloading it into outside the device’s casing.
    [00072] In the filter device of this type, when the accumulated layer of captured matter including the mixture of trapped viscous matter present in the target gas and in the precoating chemical is formed on the capture surface of the filter and it grows to some extent, the mixture that forms the accumulated layer of captured matter is released.
    [00073] According to the arrangement noted above, the transport device can transport the mixture released and dropped in the reproduction of the filter or the mixture released and dropped by itself from the filter during normal operation to the outside of the device housing.
    [00074] In addition, with the arrangement noted above, the conveying device is also capable of conveying the mixture produced by binding the captured viscous matter and the precoating chemical in the process of reaching the filter, after it has passed through the inlet opening or the precoat chemical that has fallen in the process of reaching the filter out of the device housing. This facilitates maintenance of the filter device.
    [00075] A tenth characteristic feature of the present invention specifies a preferred embodiment for achieving the ninth characteristic feature, and resides in that a lift prevention guide plate is provided to project horizontally from a part of the bottom edge of the entry opening for the outward transport device.
    [00076] With the aforementioned provision, elevation prevention guide plate is configured to guide the flow of the target gas having passed through the intake opening, thereby preventing the flow of the target gas from affecting the transport device out and to change the direction of the target gas flow upwards, to direct the target gas to the filters with the influences on the outward transport device being avoided.
    [00077] More particularly, the components of the light weight powder contained in the fallen mixture to be transported by the transport device out under the filters are prevented from being lifted by the target gas having passed through the inlet opening.
    [00078] Thus, the viscous matter to be captured present in the target gas can be captured by the filters with a suitable mixing condition in which only the fresh pre-coating chemical supplied from the spray nozzle of the pre-chemical coating is mixed with the target gas In addition, the dropped mixture can be transported by the conveying device out reliably and satisfactorily.
    [00079] An eleventh characteristic characteristic of the present invention refers to a painting booth using the filter device according to one of the first to eleventh characteristic attributes, and relates to comprising an exhaust chamber supplied under a paint chamber for the painting of a target object, the exhaust chamber being configured to receive the discharge air containing mist of paint discharged under the paint chamber, in which a plurality of filter devices are placed in a longitudinal direction of the cabin with the inlet openings of each of the filter devices being arranged in line in the longitudinal direction of the cabin and open to the interior of the exhaust chamber.
    [00080] With the aforementioned arrangement, a high flow of exhaust air flowing into the exhaust chamber from the painting chamber can stably reach the inlet openings of each filter device in a unified airflow condition form in the longitudinal direction of the cabin due to the entry of air through the intake openings arranged in line in the longitudinal direction of the cabin, and can flow to each of the filter devices arranged in the longitudinal direction of the cabin as the target gas in a way balanced.
    [00081] As a result, it is possible to easily and effectively capture the paint mist by the filter devices as the material to be captured present in the high discharge air flow of the painting chamber.
    [00082] At the inlet opening of each filter device, as indicated above, the pre-coating chemical released from the spray nozzle of the pre-coating chemical can be effectively distributed in the longitudinal direction of the inlet opening ( that is, the longitudinal direction of the cabin) and mixed with the target gas (ie the exhaust air) passing through the intake opening due to the accumulation recess formed at the top edge of the intake opening.
    [00083] As a result, the required number of spray nozzles for the pre-coating chemical can be drastically reduced compared to the spray booth disclosed in Prior Art 3 or 4 (see Figures 1 and 15 of the Patent 3) in which the number of spray nozzles for the precoating chemical are required to be arranged in the longitudinal direction of the booth at small intervals in the central slot-like gap or the lower slot-like gap extending in the longitudinal direction of the cabin, as noted above.
    [00084] Therefore, it is possible to simplify the painting booth structure as a whole, including the filter device, reduce the paint booth manufacturing cost, and facilitate maintenance.
    [00085] The twelfth characteristic characteristic of the present invention specifies a preferred modality to achieve the eleventh attribute, and resides in that the entrance openings are arranged in line in the longitudinal direction of the cabin at a part of the bottom of the chamber of exhaustion.
    [00086] With the aforementioned arrangement, the intake vents arranged in line are provided at the bottom of the discharge chamber, thereby guiding the high flow of discharge air that enters the discharge chamber downwards of the painting chamber in the horizontal direction by the lower wall of the exhaust chamber and then easily guide it to the intake openings of each filter device.
    [00087] As a result, the high flow of exhaust air from the paint chamber can be handled by the filter device more easily and effectively in cooperation with the effect that the air from the paint chamber discharge is stably directed to the intake opening of each filter device in the condition of uniform current in the longitudinal direction of the cabin.
    [00088] The thirteenth characteristic feature of the present invention specifies a preferred embodiment for achieving the eleventh or twelfth attribute, and resides in that the filter devices are arranged in the longitudinal direction of the cabin adjacent to the discharge chamber, and the Inlet opening of each of the filter devices is formed in a side wall of the discharge chamber.
    [00089] With the aforementioned arrangement, inspection and maintenance of the respective filter devices arranged in the longitudinal direction of the booth can be easily carried out from the outside of the spray booth in comparison, for example, with the arrangement in which the filter devices are provided inside the discharge chamber with the inlet openings of the filter devices being open to the exhaust chamber, for example.
    [00090] In addition, the inlet openings are formed directly on the side wall of the discharge chamber and, thus, the maintenance of a connection duct is unnecessary, which can provide a painting cabinet having the properties of good maintenance, unlike the arrangement in which the filter device is provided in a position away from the paint booth to allow the intake opening of the filter device to communicate with the discharge chamber through the discharge duct. elongated connection.
    [00091] It should be noted that, in this form of modality, several arrangements of the filter device can be employed, that is, the arrangement in which each filter device is provided adjacent to the discharge chamber having substantially the same width as the painting chamber, or the arrangement in which each filter device is supplied adjacent to the discharge chamber having a width smaller than the painting chamber to fit within a dented part formed laterally and out of the discharge chamber as seen , for example, from the longitudinal direction of the booth from under the paint chamber.
    [00092] A fourteenth characteristic attribute of the present invention refers to a painting booth using the filter device according to one of the first to the fourteenth characteristic attribute, and the area on which the filter device is arranged adjacent to the paint chamber to spray the target object, and the inlet opening of the filter device is formed in a side wall of the paint chamber at the bottom of the paint chamber.
    [00093] With the aforementioned provision, air containing mist of floating paint resulting from excessive spraying of paint in the paint chamber is allowed to flow into the filter device as the target gas through the inlet opening formed in the side wall of the bottom of the painting chamber.
    [00094] As a result, the paint mist as a matter present in the air to be captured (ie, the exhaust air) can be captured easily and effectively by the filter device.
    [00095] In addition, as indicated above, at the inlet opening of the filter device, the pre-coating chemical released from the spray nozzle of the pre-coating chemical can be effectively distributed in the longitudinal direction of the opening. intake and mixed with the target gas (ie, the exhaust air) passing through the intake opening due to the accumulation recess formed at the top edge of the intake opening. This can drastically reduce the number of pre-coated chemical spray nozzles required.
    [00096] Therefore, it is possible to reduce the manufacturing cost of the simplified spray booth as a whole including the filter device, while requiring the spray nozzle of the precoating chemical, and facilitates maintenance.
    [00097] In addition, the filter device is supplied adjacent to the painting chamber and the inlet opening of the filter device is formed directly on the side wall of the painting chamber, which can keep the original compactness of the painting booth simplified. BRIEF DESCRIPTION OF THE DRAWINGS
    [00098] Figure 1 is a sectional view of a painting booth according to a first embodiment; Figure 2 is a side sectional view of the spray booth shown in Figure 1; Figure 3 is an enlarged view of a main part; Figure 4 is a sectional view of a painting booth according to a second embodiment; Figure 5 is a sectional view of a simplified painting booth according to a third embodiment; Figure 6 is an enlarged view of a main part according to a modified embodiment; Figure 7 is a sectional view of a conventional paint booth; and Figure 8 is a sectional view of another conventional spray booth. MODE OF CARRYING OUT THE INVENTION [First Mode]
    [00099] Figures 1 and 2 show a painting booth, respectively, including a painting chamber 2 for painting a target object (car body in the present invention) 1 using a spray gun and a transport device 3 supplied in the painting chamber 2 to transport the target object 1.
    [000100] The painting chamber 2 is formed as a tunnel-type space extending in the direction of transport of the target object 1 (depth direction in Figure 1). The ventilation air AS, whose temperature and humidity are regulated for the entire space of the tunnel, is supplied from the roof 2a.
    [000101] A discharge chamber 4 is formed under the painting chamber 2 to extend in the direction of transport of the target object 1 in the same way as the painting chamber 2 to receive discharge air EA discharged downwards from from the paint chamber 2 through a grid floor 2b following the supply of the ventilation air AS to the paint chamber 2.
    [000102] The discharge air EA contains floating paint mist resulting from excessive spraying of paint in the paint chamber 2, which is discharged into the underlying discharge chamber 4 in the form of a piston, following the supply of SA ventilation air. from the ceiling 2a of the paint chamber 2. This removes the floating paint mist produced in the paint chamber 2 of the paint chamber 2 quickly and reliably to maintain the high quality of the painting of the target object 1 and maintain a good environment in the paint chamber 2.
    [000103] On opposite sides of the discharge chamber 4 having substantially the same width as that of the painting chamber 2, filter devices 5 are arranged in a longitudinal direction of the spray booth which coincides with the direction of transport of the target object 1 The discharge air EA that flows into the discharge chamber 4 from the painting chamber 2 is allowed to pass later through each of the filter devices 5 thus, to capture the mist of paint contained in the air EA discharge through filter device 5 to purify EA discharge air.
    [000104] The purified EA discharge air in each filter device 5 is discharged outside from an exhaust fan 7 through a discharge duct 6 connected to an upper part of each filter device 5 (or returned to the chamber paint 2 as the SA ventilation air via an air conditioning unit).
    [000105] Each filter device 5 includes a device coating 9 to house a plurality of insect filters 8 arranged in a suspended manner. Two slit or rectangular inlet openings 10 (hereinafter referred to together as "slit-type") that extend in a width direction are formed in a lower part of a side wall 9a of the device enclosure 9 under insect filters 8 These two inlet openings 10 are arranged in series along the width of the same.
    [000106] More particularly, the discharge air EA as a target gas is allowed to flow into the device housing 9 of the discharge chamber 4 through the slit inlet openings 10 to pass through the insect filters 8 through a extraction force provided by the exhaust fan 7 through the discharge duct 6 connected to the upper end part of the housing of the device 9, thereby capturing the mist of paint to be caught in the discharge air EA through the insect filters 8.
    [000107] In addition, since the paint mist to be caught has a viscosity, each filter device 5 is provided with a spray nozzle of the precoating chemical 11 in each of the inlet openings 10, through the in which a powdered pre-coating chemical P is mixed with the discharge air EA passing through the intake vents 10.
    [000108] More particularly, EA exhaust air mixed with the powdered pre-coating chemical P is allowed to pass through insect filters 8, thereby forming a pre-coating layer on a capture surface of each filter number 8 to catch the paint mist present in the EA discharge air. The pre-coating layer specifically represents an accumulated layer of the pre-coating chemical P mixed in a dispersed manner with the paint mist present in the discharge air EA.
    [000109] The filter devices 5 are arranged adjacent to the opposite sides of the discharge chamber 4 in the longitudinal direction of the cabin. The slit-inlet openings 10 in each filter device 5 are arranged in line with the longitudinal direction of the cab at a part of the lower end of each of the opposite side walls 4a of the discharge chamber 4 to open into the discharge chamber discharge 4 in a lower part of the discharge chamber 4.
    [000110] In this arrangement, the discharge air flow EA flowing down into the discharge chamber 4 from the painting chamber 2 is divided into two streams in the direction of the width of the cabin, as shown by the arrow in the drawings, each whose discharge air currents EA is maintained in a uniform air flow in the longitudinal direction of the cabin and easily guided across and out, at the bottom of the discharge chamber 4 by a wall 4b below the discharge chamber 4. As a result, the two streams of the discharge air EA are drawn into the slit inlet openings 10 of the respective filter devices in a balanced manner.
    [000111] As shown in figure 3, in a part of the upper edge of each intake opening 10 in each of the filter devices 5 an accumulation recess 12 is formed having an open downward section as seen from the longitudinal direction of the intake opening 10. The accumulation recess 12 is formed continuously in the longitudinal direction (width direction) of the intake opening 10.
    [000112] In a direction of passage of the discharge air EA at each intake opening 10, the accumulation recess 12 has a part of the upstream edge acting as a vertical upstream wall 12a continued from the side wall 4a of the discharge chamber 4, and a part of the downstream edge acting as a suspended vertical wall downstream 12b continued substantially from the side wall 9a of the device housing 9.
    [000113] On the other hand, an inclined lower part 13 is formed in a part of the lower edge of the inlet opening 10 to oppose the accumulation recess 12 in the upper edge part and descend to the downstream side in the direction of the passage of the exhaust air EA at the intake port 10. The lower sloping part 13 is continuously formed in the longitudinal direction (width direction) of the intake port 10.
    [000114] In the direction of the passage of the discharge air EA in each intake opening 10, the lower sloping part 13 has a part of the upstream edge functioning as a vertical vertical wall 13a upstream extending perpendicularly towards the part of the edge 12a upstream of the accumulation recess 12.
    [000115] The vertical suspended wall downstream 12b representing the part of the downstream edge of the accumulation recess 12 is arranged in a lower position than the vertical suspended wall upstream 12a representing the part of the edge upstream of the recess of accumulation 12 so that the accumulation opening 12 and a part of the underlying edge 13b downstream 13b of the inclined lower part 13 is arranged in a lower position than an upstream opening 10a formed between the upstream edge part 12a of the accumulation recess 12 and the part of the upstream edge 13a underlying the angled bottom 13.
    [000116] A pre-coating chemical spray nozzle 11 for launching the pre-coating chemical P together with compressed air is arranged to spray the pre-coating chemical P and compressed air acting as a carrier gas on a deep inner surface of the accumulation recess 12 and a central longitudinal part of each intake opening 10.
    [000117] More particularly, the pre-coated powdered chemical P is launched along with the compressed air to the deep inner surface of the accumulation recess 12 in this manner, as a result of which the accumulation of swirling air flow carries - when the pre-coating chemical P is produced in the accumulation recess 12 for an appropriate period of time as shown by the black arrow in the drawings.
    [000118] This allows the pre-coating chemical P to disperse, in the longitudinal direction (width direction) of the intake opening 10 in the accumulation recess 12 is formed continuously in the longitudinal direction of the intake opening 10 with the agitation of the accumulation swirling air flow. Then, the dispersed precoating chemical P is collected within a flow of discharge air EA in the inlet opening 10 little by little to allow the coating chemical P to mix with the discharge air EA evenly dispersed in the longitudinal direction of the inlet opening 10.
    [000119] In addition, the flow rate of the discharge air EA is made uniform in the vertical direction of the intake opening 10 as well as in the vertical wall suspended upstream 12a of the accumulation recess 12 and the vertical wall 13a upstream of the inclined lower part 13 in which the precoating chemical P dispersed in the accumulation recess 12 is guided downwards by the vertical suspended wall upstream 12a and by the vertical suspended wall downstream 12b, respectively.
    [000120] This also effectively distributes the pre-coating chemical P towards the height (towards the shortest side) of the intake opening 10.
    [000121] Also, the downward flow produced by the orientation of the suspended downstream wall 12b reaches the inclined bottom to create a current inversion component for the upstream side next to the inclined bottom 13, thus, to keep part of the chemical product. pre-coating P in a state spread out on the lower sloping part 13 to stably maintain the pre-coating chemical layer on the lower sloping part 13 to prevent the paint mist from adhering to the sloping bottom 13.
    [000122] Furthermore, due to the arrangement of the downstream opening 10b of the lower inlet opening 10 positioned in the upstream opening 10a, the direction of the discharge air EA having passed through the inlet opening 10 obliquely downwards is substantially changed to upwards to be directed to the insect filters 8 above. This also facilitates the dispersion of the precoat chemical P mixed with the discharge air EA in the discharge air EA.
    [000123] A jet opening 11a of the spray nozzle 11 of the pre-coating chemical is arranged in a downstream position with respect to the central part of the accumulation recess 12 in the direction of passage of the discharge air EA in the intake opening 10 to be directed substantially vertically and upwards. On the other hand, an inclined surface 12c is formed on the deep inner surface of the accumulation recess 12 to be substantially parallel to the inclined lower part 13 to receive the sprayed precoating chemical P and compressed air. A central axis of the jet of the spray nozzle 11 of the precoating chemical is configured to obliquely cross the inclined surface 12c.
    [000124] More particularly, this arrangement of the spray nozzle crossing the inclined surface prevents the precoating chemical P having been released from the spray nozzle 11 of the precoating chemical from being adhered to and accumulated on the surface. internal depth of the accumulation recess 12.
    [000125] In addition, the aforementioned swirl-type accumulation is formed mainly in an upstream part in the accumulation recess 12 to locate the area where the precoating chemical P is mixed with the discharge air EA passing through the opening inlet 10 on the upstream side of the accumulation recess 12, thus ensuring the dispersion time after mixing.
    [000126] A conveyor belt 14 operating as an outward conveying device is provided in a lower position than the inlet opening 10b of the inlet opening 10 under the insect filters 8 in the device housing 9 of the device of the device. filter 5. The conveyor belt 14 extends through a plurality of filter devices 5 arranged in the longitudinal direction of the cabin.
    [000127] More particularly, the conveyor belt 14 is configured to receive captured accumulated material (that is, the paint mist mixture and the pre-coating chemical P) released and dropped from the capture surfaces of the insect filters 8 or fallen materials produced by the pre-coating chemical P linked with the paint mist on the way to insect filters 8, and transport them in the longitudinal direction of the cabin and unload them from each device filter 5.
    [000128] The number 19 in the drawings denotes a feed / hopper deposit to receive the material to be discharged by the conveyor belt 14. The material to be discharged received in the hopper is directed to a collection section predetermined by a system air transport, for example.
    [000129] Release elements 15 are provided in the vicinity of an area above the insect filters 8 in the device housing 9 of each filter device 5 for the ejection of the compressed air pulse.
    [000130] More particularly, when the accumulated layer of the captured material containing the mixture of the paint mist and the pre-coating chemical P formed on the capture surface of the insect filter grows to some extent, the compressed air is applied in the form of pulses to each of the insect filters 8 by the release elements 15 from the side downstream of the air passage direction, thus, to forcibly release the accumulated layer of matter captured from the filter capture surface of insects 8 and cause it to fall on the conveyor belt 14.
    [000131] In addition, an elevation prevention guide plate 16 is provided to continue from an edge downstream of the sloping lower part 13 in the intake opening 10 to project towards the region above the conveyor belt 14.
    [000132] More specifically, discharge air EA having passed through the intake opening 10 is directed to the insect filters 8 under the guidance of the elevation prevention guide plate 16, thereby preventing the light powder components of the mixture material falling on the conveyor belt 14 to be lifted by the discharge air EA. [Second Mode]
    [000133] Figure 4 shows an improved paint booth from the paint booth according to the first embodiment, in which the discharge chamber 4 has a smaller width than the painting chamber 2 with dented parts 17 being formed in areas opposite sides of the discharge chamber 4 under the spray booth 2.
    [000134] The filter devices 5 are arranged in each of the dented parts 17 adjacent to the discharge chamber 4 in the longitudinal direction of the cabin.
    [000135] In the same way as in the painting booth according to the first embodiment, the slit inlet openings 10 in each filter device 5 are arranged in line with the longitudinal direction of the booth at a part of the lower end of each of the opposite side walls 4a of the discharge chamber 4 to open into the discharge chamber 4 at a lower part of the discharge chamber 4.
    [000136] The remaining constructions including the pre-coating chemical spray nozzle arrangement 11 in the intake opening 10 of the filter device 5 shown in Figure 3 are the same as the spray booth according to the first modality. According to the second embodiment, while the filter devices 5 are arranged in the longitudinal direction of the cabin adjacent to the discharge chamber 4, an area required for the installation of the spray booth, including filter devices 5 can be reduced. [Third Mode]
    [000137] Figure 5 shows a simplified painting booth. The filter device 5 is arranged adjacent to the painting chamber 2, in which a side wall 2c of the side walls of the painting chamber 2 for painting the target object 1 facing a side wall equipped with a spray gun 18 through of target object 1 is also used as one of the side walls of the device housing 9 of each filter device 5.
    [000138] The inlet opening 10 of the filter device 5 is formed in a part of the lower end of the common side wall 2c as a slit that extends in the direction of its width to open in the lower part of the painting chamber 2 .
    [000139] In the filter device 5, basically in the same way 5, as the filter device of the first embodiment, the direction of the discharge air EA entrained to the coating device 9 of the painting chamber 2 through the inlet openings 10 type the slit is altered upwards to pass through the insect filters 8, and in this way to catch the paint mist present in the discharge air EA by the insect filters 8.
    [000140] The accumulation recess 12 having substantially the same construction as the recess shown in Figure 3 is formed continuously in the inlet opening 10 of the filter device 5 in the longitudinal direction (width direction) of the inlet opening 10 in the edge part top of it. The spray nozzle of the pre-coating chemical 11 for launching the pre-coating chemical P together with compressed air is arranged to spray the pre-coating chemical P and compressed air acting as a carrier gas on a surface deep internal part of the accumulation recess 12 in the central longitudinal part (width) of each intake opening 10.
    [000141] More particularly, in such a simplified painting booth, as well, swirling accumulation is produced in the accumulation recess 12 in the same way as the filter device shown in the first embodiment, thereby dispersing the chemical P from pre-coating launched from the spray nozzle 11 of the pre-coating chemical in the longitudinal direction of the inlet opening 10 and mixing it with the discharge air EA passing through the inlet opening 10.
    [000142] While the required number of spray nozzles 11 of the pre-coating chemical can be reduced in this arrangement, the distribution of the pre-coating chemical P in the discharge air EA directed to the insect filters 8 is effectively made uniform in the longitudinal direction of the inlet opening 10 (in other words, the direction of the width of the spray chamber 2).
    [000143] A collecting container 20 is provided at the bottom of the device 9 casing to receive and collect the accumulated captured materials (mixture of accumulated materials from the paint mist and the precoating chemical P) released and dropped capture surfaces of insect filters 8. [Other Modalities]
    [000144] Other modalities are described below.
    [000145] In order to place the filter device 5 adjacent to the discharge chamber 4 or the painting chamber 2 to form the inlet opening 10 for the filter device 5 in the side wall 4a of the discharge chamber 4 or a side wall 2c of the painting chamber 2, it is possible to employ either the arrangement in which the side wall 9a of the device 9 of each filter device 5 is positioned close to the side wall 4a of the discharge chamber 4 or the late wall - paint chamber 2c 2 is also used as the side wall 9a of the device housing of each filter device 5.
    [000146] With respect to the accumulation recess 12 the part of the upper edge of the inlet opening 10 like a slit of the filter device 5, a specific profile as seen from the longitudinal direction of the inlet opening 10, may vary to have, for example, example, any types of polygonal shapes or an arc shape. Alternatively, an additional recess can be provided in the deep part of the accumulation recess 12, as shown in Figures 6 (a) and 6 (b), or the entire internal surface of the accumulation recess 12 can be formed as a substrate. sloping downward side to the downstream side, as shown in Figure 6 (c).
    [000147] In addition, the spray nozzle of the precoating chemical P 11 to launch the precoating chemical P together with the carrier gas towards the deep inner surface of the accumulation recess 12 may have its axis central part of the jet crossing obliquely or perpendicularly to the internal surface of the accumulation recess 12. The spray nozzle of the precoating chemical 11 can be placed as shown in Figures 6 (a) to 6 (c).
    [000148] The profile and construction of the slot-type inlet opening 10 extending in a width direction as seen from its longitudinal direction are not limited to those mentioned above, but may vary in relation to the accumulation recess 12 placed in part 16 of the top edge.
    [000149] It is possible to arrange the opening 10a upstream and the opening 10b downstream at the same level or to arrange the downstream opening 10b at a lower level than the opening 10a upstream. In addition, the bottom edge of the inlet opening 10 can be without the bottom wall to be a cutting edge of a simple vertical plate.
    [000150] Various materials in powder form are usable as pre-coating chemical P depending on the viscous material to be captured, including calcium carbonate powder, caustic soda powder, hydrated lime powder, powder of calcium hydrate, calcium silicate powder, zeolite powder, stone powder, aluminum oxide powder, silicon oxide powder, or powder paint.
    [000151] Among other things, it is preferable to use an agent capable of bonding with the material to be captured such as paint mist to reduce the viscosity of the material to be captured, or having a deodorizing or sterilizing effect.
    [000152] The target gas containing the material to be captured is not limited to air, but can be any type of gas.
    [000153] The filter 8 housed in the housing of the device 9 is not limited to the insect filter, but it can be one of several types of filters, such as a pleated filter, plate-type filter or box-type filter depending on material to be captured or the pre-coating chemical P.
    [000154] In the implementation of the filter device according to the present invention, the paint booth or the simplified paint booth using such a filter device, an operation system can be employed to form the accumulated layer of chemical P of pre-coating released only on the capture surface of the filter 8 in advance before taking the material to be captured.
    [000155] In the matter capture operation being caught, the operating system is not limited to the system for launching the pre-coating chemical P continuously, but it can be a system for launching the pre-coating chemical P intermittently .
    [000156] The filter device according to the present invention can be used to capture any viscous matter in several different fields of the paint mist.
    [000157] The painting booth and simplified painting booth according to the present invention can be used to paint various objects, including an automobile body, auto parts, an enclosure for electrical appliances, any types of steel material, etc.. INDUSTRIAL APPLICABILITY
    [000158] The present invention is normally applicable to any painting equipment, and also in several other fields in which it is necessary to pick up viscous matter.
    权利要求:
    Claims (13)
    [0001]
    1. A filter device (5) comprising: a device housing (9); a filter (8) housed in the device housing (9); an inlet opening (10) provided in the housing of the device (9) to capture a target gas (EA) containing a viscous material to be captured; and a pre-coating agent spray nozzle (11) provided in the inlet opening (10) to deliver a powder-type pre-coating agent (P) to the filter (8) together with carrier gas for the target gas (EA) flowing into the device housing (9) from the intake opening (10), where the intake opening (10) is a slit opening or a rectangular opening extending in a direction of width and provided in a side part of the device housing (9), characterized by an accumulation recess (12) provided in a part of the upper edge of the intake opening (10) and formed continuously in a longitudinal direction of the intake opening (10), the accumulation recess (12) having a profile that opens downwards as seen from the longitudinal direction of the intake opening (10); and wherein the pre-coating agent spray nozzle (11) is disposed in a predetermined position of the inlet opening (10) in the longitudinal direction thereof to release the pre-coating agent (P) and the transport gas into towards a deep internal surface of the accumulation recess (12).
    [0002]
    2. Filter device according to claim 1, characterized by the fact that the accumulation recess (12) defines a part of the upstream edge (12a) in a direction of passage of the destination gas as a vertical wall suspended upstream.
    [0003]
    Filter device according to claim 1 or 2, characterized in that the accumulation recess (12) defines a part of the downstream edge (12b) in a direction of passage of the destination gas as a vertical wall suspended downstream.
    [0004]
    4. Filter device according to any one of claims 1 to 3, characterized in that the spray nozzle of the precoating agent (11) has a central jet axis that obliquely crosses the deep inner surface of the accumulation recess (12).
    [0005]
    Filter device according to any one of claims 1 to 4, characterized in that the pre-coating agent spray (11) has a jet opening positioned on the downstream side referring to the central part of the recess of accumulation (12) in the direction of passage of the destination gas in the inlet opening (10).
    [0006]
    Filter device according to any one of claims 1 to 5, characterized in that an inclined lower part (13) is formed in a part of the lower edge of the intake opening (10) to oppose the recess accumulation (12) formed at the top of the rim and descending towards the downstream side in the direction of the passage of the destination gas in the intake opening (10), the lower sloping part (13) being continuously formed in the longitudinal direction of the opening admission (10).
    [0007]
    7. Filter device according to claim 6, characterized by the fact that the part of the downstream edge (12b) of the accumulation base (12) is arranged in a lower position than the part of the upstream edge (12a) in the direction of the destination gas passage to allow a downstream opening (10b) formed between the part of the downstream edge (12b) of the accumulation recess (12) and a part of the edge underlying the downstream (13b) from the inclined bottom part (13) to be arranged in a lower position than an upstream opening (10a) formed between the upstream edge part (12a) of the accumulation recess (12) and the part of the underlying upstream edge (13a) of the sloping bottom (13), and where the filter (8) is arranged in a higher position than the downstream opening (10b) inside the device housing ( 9).
    [0008]
    Filter device according to claim 6 or 7, characterized in that the inclined bottom part (13) has a part of the upstream edge functioning as a vertical wall perpendicular upstream (13a), extending perpendicularly towards the part of the upstream edge (12a) of the accumulation recess (12) in the direction of the passage of the target gas in the intake opening (10).
    [0009]
    Filter device according to any one of claims 1 to 8, characterized in that the filter (8) is placed in a higher position than the intake opening (10) inside the housing of the device (9), and in which an outward transport device is provided in a lower position than the inlet opening (10) under the filter (8) for the transportation of a mixture released and receded from the filter (8) in the longitudinal direction of the intake opening (10) and discharge it out of the device enclosure (9).
    [0010]
    10. Filter device according to claim 9, characterized in that a lifting prevention guide plate (16) is provided to project horizontally from a part of the lower edge of the intake opening (10) towards the outward transport device.
    [0011]
    11. Paint booth using the filter device (5), as defined in any of claims 1 to 10, characterized by the fact that the paint booth including a discharge / exhaust chamber (4) under a painting (2) for painting a target object (1), the exhaust chamber (4) being configured to receive the discharge air containing mist of ink discharged under the painting chamber (2); wherein a plurality of filter devices (5) are arranged in a longitudinal direction of the cabin with the inlet openings (10) of each of the filter devices (5) being arranged in line in the longitudinal direction of the cabin and open into the exhaust chamber (4).
    [0012]
    12. Painting booth, according to claim 11, characterized by the fact that the intake openings (10) are arranged in line in the longitudinal direction of the booth in a part of the bottom of the exhaust chamber (4).
    [0013]
    13. Paint booth according to claim 11 or 12, characterized by the fact that the filter devices (5) are arranged in the longitudinal direction of the booth adjacent to the discharge chamber (4), and the inlet opening (10 ) of each of the filter devices (5) is formed in a side wall (4a) of the discharge chamber (4).
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    同族专利:
    公开号 | 公开日
    EP2556874A4|2017-04-05|
    KR20130029038A|2013-03-21|
    WO2011121820A1|2011-10-06|
    MX2012011050A|2012-11-16|
    JP2011206718A|2011-10-20|
    US20120266812A1|2012-10-25|
    US8801820B2|2014-08-12|
    KR101417788B1|2014-07-09|
    JP4738539B1|2011-08-03|
    BR112012021855A2|2016-05-17|
    CN102271784A|2011-12-07|
    CA2780438C|2015-07-14|
    RU2515872C1|2014-05-20|
    RU2012146075A|2014-05-10|
    CA2780438A1|2011-10-06|
    EP2556874B1|2018-07-11|
    CN102271784B|2013-08-21|
    EP2556874A1|2013-02-13|
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    WO2022015145A1|2020-07-13|2022-01-20|Cydsa, S.A.B. De C.V.|Air cleansing and filtration system for the elimination of polluting gases in chemical and/or marine environments|
    法律状态:
    2018-03-27| B15K| Others concerning applications: alteration of classification|Ipc: B01D 46/24 (2006.01), B05B 14/43 (2018.01) |
    2018-04-10| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-03-10| B25G| Requested change of headquarter approved|Owner name: TAIKISHA LTD. (JP) |
    2020-11-17| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-01-05| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 05/01/2021, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
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    JP2010078318A|JP4738539B1|2010-03-30|2010-03-30|Filter device, painting booth using the filter device, simple painting booth using the filter device|
    JP2010078318|2010-03-30|
    PCT/JP2010/066410|WO2011121820A1|2010-03-30|2010-09-22|Filtering apparatus, spray painting booth with the filtering apparatus, and simplified spray painting booth with the filtering apparatus|
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