• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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    • 专利摘要:
    ROTARY VIBRATORY SIEVE FOR PARTICULATE SEPARATION AND METHOD FOR ASSEMBLING A VIBRATORY SIEVE CLEANING SYSTEM IN A VIBRATORY SIEVE. A vibrating sieve including a sieve with an upper surface, a lower surface, and a plurality of openings, a connecting column extending above the upper surface of the sieve, and a cleaning system positioned above the upper surface of the sieve. The cleaning system includes a support plate, a plurality of arms extending radially from the support plate, and at least one brush extending downwardly from each of the arms. Each brush is positioned so that the distal end of at least one of its multiple bristles contacts the upper surface of the sieve. The sieve also includes a collection area positioned below the bottom surface of the sieve, and a vibration generator that vibrates the sieve and the cleaning system and causes the arms to rotate in relation to the top surface of the sieve.
    公开号:BR112014010375B1
    申请号:R112014010375-5
    申请日:2012-11-02
    公开日:2021-01-12
    发明作者:Nestor A. Vasquez；Mark D. Jones
    申请人:Dow Global Technologies Llc；
    IPC主号:
    专利说明:

    [0001] [001] The present invention generally relates to vibrating separators ("separators"), and more particularly, it refers to a cleaning system used to minimize the blinding of a vibrating separator screen. Introduction
    [0002] [002] Vibratory separators are commonly used for the classification of material containing particles of various sizes in certain sizes by depositing a quantity of material on a sieve with holes or openings of a predetermined size. The sieve is then vibrated at a specific frequency to cause many of the smaller particles to move through the sieve holes, so that these particles can then be further classified or used in other operations. After passing through the sieve holes, the classified particles can then be moved into a particle collection area. The vibrating separator is also designed to keep particles moving and thus move particles that are above the predetermined sieve hole size, into one or more large discharge tubes or areas, so that they can removed from the vibrating separator. Large particles can be discarded or used for another purpose. Although some separators will operate in this way for a period of time, many separators will lose efficiency when some of the small and / or large particles begin to lodge inside the sieve holes and cause the sieve to become clogged or "clogged". When this occurs, particles that are within the desired size range will be prevented from falling through the sieve holes and, on the contrary, will be moved with the large particles into the discharge area, thus causing a amount of material within the desired size range, on the contrary, is deposited with the large particles.
    [0003] [003] To minimize or avoid problems caused by an obstructed or clogged sieve, a number of different systems have been developed to clean the particles from clogged sieves, such cleaning devices and systems, are typically designed for applications and machines specific. For an example, ultrasonic generators can be used to clean the screens that are used for screening very fine particles, while such generators may not be as effective for larger particles. In another example, a cleaning slider is placed on a flat surface under the sieve and moved along its surface in an attempt to dislodge particles from the sieve holes. In yet another example, an air-scanning device is used to dislodge particles with pressurized air, which normally requires a separate dust collector to minimize the dust that is generated during the cleaning process. While some of these systems may be effective in certain manufacturing operations, there is a continuing need to provide cleaning systems that can be easily adapted for use with a circular vibrating separator to improve the efficiency of the screened material and the grading process. summary
    [0004] [004] According to the invention, a rotary vibratory separator is provided for the separation of particles, such as for the separation of selected particles of a certain size from a larger amount of particles having a variety of sizes. The separator comprises a screen comprising an upper surface, a lower surface, and a plurality of openings, a connecting column extending above the upper surface of the screen, and a cleaning system positioned above an upper surface of the screen. The cleaning system comprises a support plate, a plurality of arms extending radially from the support plate, and at least one brush extending downwards from each of the arms, where each brush comprises a plurality of bristles where each it has a distal end, and where each brush is positioned so that the distal end of at least one of its bristles contacts the upper surface of the sieve. The separator also includes a collection area positioned below the bottom surface of the sieve, and a vibration generator that vibrates the sieve and the cleaning system, and causes the arms to rotate in relation to the top surface of the sieve.
    [0005] [005] In another aspect of the invention, a method of mounting a vibrating separator cleaning system on a vibrating separator is provided. The cleaning system comprising the steps of fixing an extension member to a vibrating separator column so that the extension member extends over an upper surface of a sieve for a distance that is greater than a distance across from which the column extends above the upper surface of the sieve, and then removably connecting a cleaning system to the extension member, where the cleaning system comprises a plurality of arms extending radially from a support plate , and at least one brush extending downwards from each of the arms, where each brush is positioned so that at least a portion of its length is in contact with the upper surface of the sieve. Brief description of the drawings
    [0006] [006] The present invention will be better explained with reference to the attached figures, where equal structures are referred to by equal numbers in the various views, and where:
    [0007] [007] Figure 1 is a perspective view of a vibrating separator of the type that can be used with a cleaning system of the invention;
    [0008] [008] Figure 2 is a perspective view of a portion of an embodiment of a cleaning system positioned for cleaning a screen of a vibrating separator;
    [0009] [009] Figure 3 is an enlarged view of a portion of the cleaning system shown in Figure 2;
    [0010] [010] Figure 4 is a top view of an embodiment of a support plate for a cleaning system of the invention;
    [0011] [011] Figure 5 is a cross-sectional view of a support plate and cleaning brushes taken along the cut line A-A of figure 4;
    [0012] [012] Figure 6 is a front view of the support plate shown in figure 4;
    [0013] [013] Figure 7 is a top view of an embodiment of a cleaning system of the invention; and
    [0014] [014] Figure 8 is another top view of the cleaning system illustrated in Figure 7, and also illustrating an example of an arc along which the cleaning system can travel. Detailed Description
    [0015] [015] With reference now to the figures and initially to figure 1, an exemplary embodiment is illustrated of a vibratory separator 10 of the type that can be used according to the cleaning systems and methods of the invention. The vibrating separator 10 generally includes an upper portion 12, a lower portion 14, a sieve (such as a sieve 64 which is shown in Figure 2, for example), positioned between the upper and lower portions 12, 14 and extending across the length and width of the inner area of the separator 10, and a base 20. The sieve can be positioned to be generally horizontal with respect to the base 20, or alternatively it can be positioned at an angle to the base 20. The sieve is preferably flat along its entire length and width, although it is contemplated that the sieve is at least slightly concave, slightly convex, or otherwise, with contours throughout its length and / or width. The upper portion 12 further includes an upper discharge nozzle 16 extending from an opening at its outer edge, and the lower portion 14 includes a lower discharge nozzle 18 extending from an opening at its outer end. The separator 10 further includes one or more motion generators that cause the screen to vibrate in the vertical and / or horizontal direction.
    [0016] [016] The upper portion 12 of the separator 10 is designed to accept quantities of material (for example, particles of various sizes and shapes) that are deposited on the surface of the sieve. The sieve is designed or chosen to have holes of a predetermined size that define the desired particle size range to be collected above or below the sieve. That is, although it is common to design a vibrating separator so that the material that falls through the sieve is considered the “final product” of the selection process, but it is also possible that the larger particles that are above the sieve may, on the contrary or , additionally, be considered as the “final product”. In any case, the activation or vibration of the separator 10 and its sieve will facilitate the movement of particles that are smaller in size than the size of the holes in the sieve to fall through the holes and into a collection area below the sieve. At the same time, the vibration of the separator 10 can cause large particles (for example, particles that are at least one size larger than the sieve holes) to move out towards the outer edges of the portion upper 12, so that they can move out of the upper portion 12 through the upper discharge nozzle 16. The particles that fall through the sieve and into the area of the lower portion 14 can then be collected and displaced, so that they can be facilitated by additional particle movement components, from the lower portion 14 through the lower discharge nozzle 18, for example. In an alternative vibrating separator, additional levels of screens and particle reception areas can be provided above or below the upper and lower portions 12, 14, where the additional screens can be provided with progressively smaller orifices when moved from the top in toward the bottom of the separator.
    [0017] [017] Figures 2-6 illustrate an embodiment of a cleaning system 40 that can be used with a vibratory separator for the separation of particles of the type illustrated in figure 1, for example. The cleaning system 40 generally includes a support member or plate 42, multiple arms 44 extending radially from the support plate 42, and at least one brush 46 extending from each of the arms 44. The cleaning system 40 is designed to be positioned in relation to a vibrating separator sieve so that the brushes are in contact with the upper surface of the sieve. The cleaning system can rotate in relation to the sieve during the particle separation or grading process, thus minimizing the clogging or blocking of the sieve. The cleaning system can be removable and replaceable from the separator, so that if it is desired to use the separator without a cleaning system and / or, if it is desired to use a different cleaning device for a given sorting process, example. The various components of the cleaning system are described in further detail below.
    [0018] [018] The support plate 42 of the present embodiment is illustrated as being generally square in shape, although on the contrary, it can be circular, oval, rectangular, triangular, or other shape of regular or irregular shape. In the illustrated embodiment, in which the support plate 42 is square, an arm 44 extends from each of the four sides of the support plate 42. In order to provide a balanced cleaning system 40, each of the arms 44 can be similar or identical in size and shape to the other arms 44, where the arms 44 can be positioned and connected with respect to the support plate 42 in a symmetrical manner. Specifically, the arms 44 can have the same general dimensions and weight, and be connected in the same general location along each edge, so that when the system 40 rotates, the arms 44 will generally remain in the same plane as each other and in relation to the sieve. A rim or support member can optionally be provided between the ends or edges of all or some of the adjacent arms, in order to modify certain flexion and / or vibration characteristics of the arms. In one embodiment, the support member or members can extend around all edges of the arms to provide a closed rim structure.
    [0019] [019] In an embodiment in which the support plate is not square in shape, one or more arms can extend from one or more sides, thus providing a cleaning system that can have more or less than four arms . It should also be noted that, if the shape of the support plate includes curved surfaces (for example, circular), the plate cannot include distinct “sides” and multiple arms can each consequently extend from different areas of the periphery as opposed to from different sides.
    [0020] [020] In other embodiments, a cleaning system is provided, which is at least slightly unbalanced, which can be achieved by having different numbers of arms extending from certain sides of the support plate, for example, or by supplying of arms within a system that has different lengths, weights, or other physical characteristics. In addition, a central plate may itself have dimensioned or irregularly shaped sides, so that the connection of the identical shaped and sized arms will result in a cleaning system that is asymmetrical and / or unbalanced.
    [0021] [021] Each of the arms 44 can be connected to its respective side of the support plate 42 in a number of different ways, with such a fixation configuration being illustrated in figures 4-6. As shown, each side of the support plate 42 is provided with a channel 50 on which an end close to an arm 44 can be positioned. The fixing bar 52 is positioned inside the channel 50 and adjacent to the arm 44 to hold the arm 44 in place within the channel 50. The fixing bar 52 includes at least one hole through which a threaded member 54 extends, or the threaded member 54 can instead be connected to a surface of the fixing bar 52 so that it extends outwardly from the surface. In both cases, the fixing bar 52 is positioned so that each of its extending threaded members 54 is aligned with a corresponding hole 56 of the support plate 42. To ensure the fixing bar 52 within the channel 50 in which it is positioned, one or more washers, nuts or other fastening devices can be used. In the example of the illustrated configuration, the threaded member 54 is provided with a flat washer 58, a lock washer 60, and a hexagonal nut 62 which is fixed to the portion of the threaded member 54 that extends above the upper surface of the support plate 42 Each of the threaded members 54 can be similarly configured to extend through a hole in the support plate and attached to the upper surface of the support plate.
    [0022] [022] In another connection arrangement, the arms can be connected to a central support plate using structures without threads, such as elastic clips. The arms can also be attached to the central support plate using adhesive materials, casting processes and / or combinations of these and other connecting processes or devices to provide a permanent or temporary connection of the arms to a generally central support plate.
    [0023] [023] Each arm 44 is provided with a length that corresponds to a desired cleaning radius for cleaning system 40. That is, if it is desired for washing system 40 to contact the entire surface of a vibrating separator screen. in particular, the arms 44 must be of sufficient length to reach from the support plate 42, generally towards the edges of the sieve (e.g., the edges of the sieve on the sides of the upper portion 12). However, if it is desired to maintain a distance between the distant edges of the arms 44 and the edges of the sieve, the arms 44 having a shorter length should be used. Each arm 44 can be provided with a channel or other surface on which one or more brushes 46 can be either permanently attached or removably attached. For example, each brush 46 can be attached by means of one or more fasteners in various locations along the length of one of its arms 44. Alternatively, each brush and arm combination can be provided as an integrated unit, such as by using commercially available brushes that can be attached to the support plate 42, for example. Each brush length can be provided as a single piece or can, on the contrary, comprise several brushes which are adjacent to each other along one or more lines to provide a particular brush length.
    [0024] [024] With continued reference to figures 2 and 3, the arms 44 are positioned to be generally perpendicular to the edge of the support plate 42 from which they extend. In this way, the arms 44 that extend from opposite sides of the support plate 42 are generally parallel to each other in a common plane, and the arms that extend from adjacent sides of the support plate 42 are generally perpendicular to each other. to the other, on the same common plane. It is contemplated, however, that the arms may extend from the sides of the support plate at different angles and / or that the arms 44 are not generally parallel and / or perpendicular to each other. Such configurations will most likely be the case for configurations in which the support plate 42 is not a square or other symmetrical shape.
    [0025] [025] Brushes 46 can be selected or designed to include a wide variety of different characteristics and configurations to provide a desired sieve cleaning effectiveness and minimize product contamination. For example, in order to minimize the possibility of bristles falling through the sieve holes and into the classified material, at least one dimension of the bristles must be larger than the largest dimension of the sieve holes. In this way, if a portion of a bristle or a total of bristles is released from the brush, the bristle will not be able to fall through one of the holes in the sieve and contaminate the classified particles. In such a situation, the detached bristle or portion of bristles can be moved towards the separator side in the same way that large particles will be moved towards the separator side. In addition, each of the brushes 46 are provided with several bristles, where the spacing and arrangement of the bristles can be selected to optimize the cleaning process. For example, the bristles can be arranged in several lines along the length and / or width of the brush, or the bristles can, on the contrary, be arranged in a different pattern, or they can even be arranged randomly along the length and / or brush width. The bristles within each of the brushes can generally be the same as the others, or a single brush may, on the contrary, comprise bristles having different material properties, dimensions, or other characteristics over their length and / or width. In addition, each of the brushes 46 of a specific cleaning system 40 can generally be the same as each of the other brushes in the system, or one or more of the brushes may, on the contrary, be different within a single cleaning system 40 .
    [0026] [026] The materials from which the brush bristles of cleaning system 40 are made can vary widely, depending on the material properties of the particles being classified (for example, the abrasiveness of the particles), the material from which the sieve is made, the expected speed at which the cleaning system will spin, and additional or alternative considerations. For example, the bristles are preferably sufficiently rigid that they can dislodge and remove particles from the surface and the holes in the sieve with which they come in contact, they are preferably still not so rigid that they prevent rotation of the cleaning system. In addition, the materials from which the bristles are made are preferably chosen to provide a bristle that does not show excessive wear within a short period of time. That is, while the system can be provided with brushes that are relatively easy to remove and replace in relation to the arms from which they extend, it is desirable that the brushes have a sufficiently long life, which can be used for a period of time. extended time (for example, for several hours) before needing to be replaced. In some embodiments, the cleaning apparatus includes adjustment capabilities, so that when the bristles become worn after a period of use of the cleaning system, the brushes and / or arms can be adjusted to keep at least some of the bristles in contact the screen with an effective amount of pressure to provide the desired screen cleaning. In other embodiments, the bristles themselves support the weight of the entire cleaning system, such that the pressure of the bristles on the sieve is defined by the weight of the cleaning apparatus.
    [0027] [027] In yet another alternative, brushes may comprise more of a comb-like configuration than a brush-like configuration. In such an embodiment, a series of teeth are spaced from each other and arranged in one or more lines along the length of the brush member, where the teeth are relatively rigid when compared to those that would typically be provided by a brush. A comb-like arrangement can be useful for certain cleaning and grading operations, for which it is advantageous to have larger spaces between the teeth of the comb that are typically provided by brushes that have a much larger number of bristles that are spaced apart by one another. relation to the others.
    [0028] [028] The brushes used with the various embodiments of the invention can be brushes that are commonly referred to as commercial strip brushes. In this way, custom brushes do not necessarily need to be manufactured by a specific cleaning system, as a user of this cleaning system may be able to simply purchase commercially available brushes, such as strip brushes that are commercially available from from Carolina Brush of Gastonia, North Carolina, for example. Such strip brushes can include a wide variety of channel sizes, filament types, sizes, and materials, and supports. An additional advantage for using commercially available brushes is that the user can optimize a cleaning process by trying a number of different brush materials and configurations, depending on specific cleaning conditions, without having to commit to designing. and purchase a large number of bespoke brushes or commit to the purchase and installation of brush manufacturing equipment. In addition, a user can store a wide variety of different brushes in order to be able to adjust and optimize the cleaning process for different particulates, and other operating conditions, and can simply purchase additional brushes that provide the best operating conditions for the specific cleaning system. Therefore, this cleaning system can be very cost effective for the user.
    [0029] [029] It should also be noted that the length of the brushes used for the cleaning system can be selected to correspond, in general, to the area of the sieve cleaning system for which cleaning is desired. For example, if it is desired to reach the furthest edges of the sieve, one or more of the brushes can extend the entire distance from a central support plate to a peripheral edge of the sieve, and in one embodiment, all brushes in one cleaning system in particular, are the same length. It is also contemplated, however, that one or more of the brushes of a particular cleaning system may extend from the central support plate for a shorter distance than at least one other brush of the cleaning system, providing thus a cleaning system having at least one brush that is of a different length than the others. If the brushes are of the same or a different length for a particular cleaning system, the cleaning systems of the invention can be adapted for vibratory separators of different sizes, simply using brushes of an appropriate length.
    [0030] [030] Each of the brushes 46 can be positioned in relation to their respective arm 44, so that all or most of the bristles are generally perpendicular to the arm 44 from which they extend and are also generally perpendicular to the surface of the sieve , which they will contact. Alternatively, one or more of the brushes 46 of a particular cleaning system can be tilted at least slightly in relation to the sieve surface in order to provide a different angle of contact between the brush bristles and the upper surface of the sieve . Providing such an angle for the brush bristles, it can be achieved through the angle of a specific brush in relation to the arm to which it is attached, and / or through the angle of the entire arm and brush attached in relation to the support plate to which it is attached.
    [0031] [031] The central opening 68 through the support plate 42 is used to position and fix the cleaning system 40 to the vibrating screen 10. This opening is designed to fit in a central column extending above the screen, which is illustrated in the example of the embodiment of figure 3 with reference number 63. The central opening 68 can also contain the bearing 66 which is permanently, or removably, attached inside the opening. The bearing 66 is preferably dimensioned and formed so that it can be slid along the top of the central column 63 to allow free rotation of the support plate 42 in relation to the central column 63. The bearing 66 can be made of the same or of a different material from the support plate 42 on which it is positioned. In one example of an embodiment, the bearing may be a polyethylene material that is fixed to the support plate 42 by a ring-type fastener, while the support plate is made of aluminum, however, it should be understood that the central plate , the bearing and / or other components may, on the contrary, be made of different metals, plastics and / or other materials or combinations thereof, which provide the desired performance characteristics for the cleaning system.
    [0032] [032] The central column 63 which extends above the sieve can either be specifically provided as a component of the separator for the acceptance of a cleaning system of the type described here, or the separator can, on the contrary, be improved with an extension of the specifically designed fixation column that is attachable to a component of an existing vibrating separator. That is, some commercially available vibratory separators are provided with a central column that extends at least slightly above the sieve, where the portion of the column above the sieve can be provided with an end section that is threaded to accept a fixing device. . Such a fixing device can be used to hold the sieve in place in relation to the central column, for example. In that case, if the portion of the central column that extends above the sieve is not long enough, or otherwise, it is not of the desired size and shape for coupling with an opening 68 of a support plate 42, an extension of the column can be attached to the center column. Such a column extension can be specifically configured to couple with the central opening 68 of the support plate 42 and / or the bearing 66 which is positioned inside the opening 68 of the support plate 42. The column extension can be attachable to the central column in a number of different ways, such as via internal threads of a column extension that are pluggable with external threads of a central column or by pressing a column extension over the central column, for example.
    [0033] [033] If an existing central column of a vibrating separator is used or if the central column is extended by an extension of the column, as described above, the outer surface of the portion of the column that extends above the sieve may be relatively smooth for allowing the support plate 42 to rotate, and extending the arms of a cleaning system 40 around this part of the column. The material from which the column extending portion is made, preferably compatible with the material from which the bearing and / or the central opening 68 of the support plate 42 are made so that the movement of the components one with respect to the other does not cause excessive wear or degradation to the components. In some cases, it may be desirable to select the surfaces and materials so that there is a certain level of friction between the components, for example, it may be desirable to control the rotation rate of the cleaning system 40 in relation to the central column of the sieve .
    [0034] [034] As discussed above, the cleaning systems of the invention are designed to fit over a central column or other component of a vibrating separator, where the support plate of the cleaning device is able to rotate relatively freely in relation to this central column. The rotation of the cleaning device is initiated and maintained by the vibration of the separator that can be used for the normal sorting process (ie using the vibrating separator without a cleaning system). The speed and the variability of rotation of the cleaning device can be controlled by changing the frequency of the vibration, the amplitude of the vibration and / or the angle between the bristles and the sieve, in order to efficiently filter or separate the particles, avoiding or minimizing obstruction and / or clogging of the sieve holes. The vibration of the cleaning system can be generated and controlled in a number of different ways, such as moving weights to change the balance of the system and cause a certain amount of vibration. In such an embodiment, the motor can run at a generally constant speed, since the vibration is controlled by the position of the weights.
    [0035] [035] The cleaning system 40 can also be provided with a spring (not visible) positioned between the lower surface of the support plate 42 and an upper surface of the sieve, and / or positioned between a lower surface of the bearing or other component support plate 42, and an upper surface of the sieve. Such a spring is provided as an additional component to help support part of the weight of the cleaning system 40 and keep it in a desired orientation with respect to the upper surface of the sieve, above which it is positioned. In a particular embodiment, the dimensions of such a spring and its k coefficient are selected to provide sufficient lift to reduce the effective weight of the cleaning system on the surface of the sieve. For example, the spring can be selected to reduce the effective weight of the cleaning device in relation to the sieve by at least 1%, but preferably, it will reduce the effective weight between 10% and 90%. It is contemplated, however, that a spring can provide less than 10% or more than 90% effective weight reduction.
    [0036] [036] Figures 7 and 8 illustrate an example of an embodiment of a cleaning system 100 that can be used with a vibrating separator for the separation of particles of the type illustrated in figure 1, for example. The cleaning system 100 generally includes a support element or plate 142, two arms 144 extending radially from the support plate 142, and at least one brush 146 extending from each of the arms 144. The cleaning system 100 it is designed to be positioned in relation to a sieve of a vibrating separator, so that the brushes can rotate in relation to the sieve during the separation or grading process to minimize the obstruction or blocking of the sieve holes. The support plate 142 of this embodiment is illustrated as being generally rectangular in shape, with an arm 144 extending from each of the two opposite sides of the support plate 142. In order to provide a balanced cleaning system 100, the arms 144 can be positioned and attached to the support plate 142 in a symmetrical manner. In particular, arms 144 may have the same general dimensions and weight, and are attached at the same general location as their respective respective edges so that when system 100 rotates, arms 144 will generally remain on the same plane as each other and in relation to the sieve. However, the arms 144 can, on the contrary, be attached to the support plate 142, in such a way as to provide an asymmetric and / or unbalanced system.
    [0037] [037] A central opening 168 through support plate 142 is used to position and attach cleaning system 100 to a vibrating separator. This opening is designed to fit into a central column that extends above the vibrating separator screen. The central opening 168 may also contain the bearing 166 which is permanently, or removably, attached within the opening. The bearing 166 is preferably dimensioned and formed so that it can be slid over the top of a central column to allow free rotation of the support plate 142 in relation to the central column. The bearing 166 can be made of the same or a different material from the support plate 142 in which it is positioned.
    [0038] [038] Figure 8 illustrates a portion of the travel path of the arms 144 along an arc 170 when the cleaning system 100 rotates around the center of the bearing 166 and / or the central opening 168. As shown, when the system cleaning arm 100 rotates counterclockwise, arm 144 on the right side will move in an upward direction, while arm 144 on the left side will move in a downward direction. Such a cleaning system 100 can be used on any vibrating separator that has a diameter that is equal to or less than the distance between the distal ends of the arms 144 of this cleaning system 100.
    [0039] [039] It should be noted that the terms "center" and "central" are used here to generally indicate the positioning of certain components in relation to each other, however, such use of these terms is not intended to be limited to the positioning of components in the exact center of the components. On the contrary, these terms are used in a more general sense to describe the placement of components in areas that are not on the edges or sides, but that are instead spaced from such edges or sides.
    [0040] [040] An embodiment of the invention will now be described in detail in the following example in which a vibrating separator or SWECO separator (which is a unit of MI SWACO activity in Paris, France) was used to screen or separate particles. In particular, a prototype of a cleaning type of the invention, as illustrated in figures 2 and 3, was installed in a commercially available SWECO vibratory separator, which was operated for eight continuous hours. The same SWECO vibratory separator was also operated for eight continuous hours without such a cleaning device installed. Both eight-hour tests were operated at the same solids flow rates of approximately 1,770 kg / hour. The amount of large material that was collected during the eight-hour test, without a cleaning device, was approximately 80 kg. The amount of large material that was collected during the eight hour test, with a cleaning device of the invention installed was approximately 1.4 kg. This represents a 98% reduction in income loss.
    权利要求:
    Claims (15)
    [0001]
    Rotary vibrating separator for particle separation, characterized by the fact that it comprises: - a sieve (64) comprising an upper surface, a lower surface, and a plurality of openings; - a connecting column (63) extending above the upper surface of the sieve (64); - a cleaning system (40; 100) positioned above the upper surface of the sieve (64), the cleaning system (40; 100) comprising a support plate (42; 142), a plurality of arms (44; 144) extending radially from the support plate (42; 142), and at least one brush (46; 146) extending downwardly from each of the arms (44; 144), where each brush (46; 146) comprises a plurality of bristles where each has a distal end, with each brush (46; 146) positioned so that the distal end of at least one of its bristles contacts the upper surface of the sieve (64), with an outer periphery the support plate (42; 142) includes at least three sides, and at least one of the plurality of arms (44; 144) extends from each side; - a collection area positioned below the bottom surface of the sieve (64); and - a vibration generator that vibrates the screen (64) and the cleaning system (40; 100) and causes the arms to rotate in relation to the upper surface of the screen (64).
    [0002]
    Vibratory separator according to claim 1, characterized in that each of the plurality of bristles is larger in at least one dimension than a larger dimension of each of the sieve openings (64).
    [0003]
    Vibratory separator according to either of claims 1 or 2, characterized in that at least one of the connecting column (63) and an extension piece extend through a hole (68; 168) of the support plate (42 ; 142).
    [0004]
    Vibratory separator, according to claim 3, characterized by the fact that it also includes the replaceable and removable bearing (66; 166) positioned inside the hole (68; 168) of the support plate (42; 142), where the bearing (66 ; 166) is dimensioned and formed to provide free rotation of the support plate (42; 142) in relation to the connection column (63).
    [0005]
    Vibratory separator, according to claim 1, characterized by the fact that it comprises: - a support plate (42; 142) comprising an orifice; - the replaceable and removable bearing (66; 166) positioned inside the hole (68; 168) of the support plate (42; 142), where the bearing (66; 166) is dimensioned and formed to provide free rotation of the bearing plate support (42; 142) in relation to the connection column (63), and the bearing (66; 166) and the support plate (42; 142) comprise materials of different properties.
    [0006]
    Vibratory separator according to claim 1, characterized in that it comprises a spring positioned between a lower surface of the support plate (42; 142) and the upper surface of the sieve (64).
    [0007]
    Vibrating separator according to any one of claims 1 to 6, characterized in that each brush (46; 146) is removable and replaceable from its respective arm (44; 144), without removing the sieve (64).
    [0008]
    Vibratory separator according to any one of claims 1 to 7, characterized in that at least one of the arms (44; 144) is removably attached to the support plate (42; 142).
    [0009]
    Vibratory separator according to any one of claims 1 to 8, characterized in that the connecting column (63) comprises: - a central column of the vibrating separator comprising a distal end that extends above the upper surface of the screen (64) for a first distance; and - an extension piece attached to the central column so that a distal end of the extension piece extends above the upper surface of the sieve (64) by a second distance that is greater than the first distance.
    [0010]
    Vibratory separator according to any one of claims 1 to 9, characterized in that at least one of the brushes (46; 146) comprises bristles that are positioned at an angle that is not perpendicular to the upper surface of the sieve (64 ).
    [0011]
    Vibrating separator according to any one of claims 1 to 10, characterized in that the vibration generator comprises at least one moving weight to control the vibration of the sieve (64) and the corresponding rotation speed of the cleaning system (40 ; 100).
    [0012]
    Vibratory separator according to any one of claims 1 to 11, characterized in that a length of each arm is selected to correspond to an external periphery of the screen (64)
    [0013]
    Vibratory separator according to any one of claims 5 and 6, characterized in that an external periphery of the support plate (42; 142) includes at least three sides, and at least one of the arms (44; 144) extends from each side.
    [0014]
    Vibrating separator according to any one of claims 1 to 13, characterized in that the cleaning system (40; 100) is removable from the separator (10).
    [0015]
    Method for mounting a vibrating separator cleaning system on a vibrating separator, characterized by the fact that it comprises the steps of: - attach an extension member to a column (63) of the vibrating separator (10) so that the extension member extends above an upper surface of a sieve (64) for a distance that is greater than a distance across the which column (63) extends above the upper surface of the sieve (64); and - removably attach a cleaning system (40; 100) to the extension member, where the cleaning system (40; 100) comprises a plurality of arms (44; 144) extending radially from a support plate (42; 142), and at least one of a brush (46; 146) or a comb comprising a plurality of members extending downwardly from each of the arms (44; 144), each brush (46; 146) or comb is positioned so that at least a portion of its members, along its length, is in contact with the upper surface of the sieve (64), with an outer periphery of the support plate (42; 142) it includes at least three sides, and at least one of the plurality of arms (44; 144) extends from each side.
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    同族专利:
    公开号 | 公开日
    US20140291214A1|2014-10-02|
    CN104080547A|2014-10-01|
    US9156062B2|2015-10-13|
    CA2853794C|2020-03-24|
    JP6059243B2|2017-01-11|
    EP2758186A1|2014-07-30|
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    CA2853794A1|2013-05-10|
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    WO2013067251A1|2013-05-10|
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    法律状态:
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-11-05| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-05-26| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law|
    2020-10-27| B09A| Decision: intention to grant|
    2021-01-12| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 02/11/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201161554552P| true| 2011-11-02|2011-11-02|
    US61/554,552|2011-11-02|
    PCT/US2012/063159|WO2013067251A1|2011-11-02|2012-11-02|Vibratory screener cleaning system|
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