• 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:
    VIBRATORY SCREENING MACHINE, SCREEN ASSEMBLY FOR A VIBRATORY SCREENING MACHINE AND MATERIAL SCREENING METHOD This is a screening machine that includes wall members, screen set guide members, a screen set, and a set of compression. The screen assembly includes a frame with a plurality of side members and the screen is supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape.
    公开号:BR112012000459B1
    申请号:R112012000459-0
    申请日:2010-07-12
    公开日:2021-07-06
    发明作者:Keith Wojciechowski；Christian Newman
    申请人:Derrick Corporatiom；
    IPC主号:
    专利说明:

    REFERENCE TO RELATED PATENT APPLICATIONS
    [001] The present invention is a partial continuation of US Patent Application Serial No. 11/726,589 entitled "Method and Apparatus for Screening", filed March 21, 2007, which is expressly incorporated herein in its entirety. by way of reference. FIELD OF THE INVENTION
    [002] The present invention relates generally to material screening. More particularly, the present invention relates to a method and an apparatus for sorting. BACKGROUND OF THE INVENTION
    [003] Material screening includes the use of vibrating screening machines. Vibratory sorting machines have the ability to stimulate an installed screen so that materials placed on the screen can be separated to a desired level. Large materials are separated from small materials. Over time, screens wear out and require replacement. In this way, the screens are designed to be replaceable.
    [004] Vibratory screening machines with their replaceable screens have several drawbacks that limit their productivity and use. In vibrating sorting machines, the material to be sorted is placed on replaceable flat or corrugated screens. The replaceable screens are tensioned onto a surface of the vibrating screening machine so that the replaceable screen fits tightly to the machine. A tensioning arrangement is provided with the machine and used to provide a tension force to the fabric. Various techniques are used to tension the screens on vibrating screening machines. One technique includes using special attachment hooks that secure the sides of the screen and pull them to the surface of the machine. Replaceable screens have a substantially planar screen area and material often reaches the screen edges, causing maintenance and contamination issues. SUMMARY DESCRIPTION
    [005] In an exemplary embodiment of the present invention, a vibrating screening machine is presented that simplifies the process of attaching a replaceable screen to the machine. Vibratory sorting machine and replaceable screen prevent materials to be sorted from escaping to the sides of the screen. The replaceable screen is designed to be low cost and can be quickly installed on the vibrating screening machine.
    [006] According to an exemplary embodiment of the present invention, the vibrating screen machine includes: wall members, a concave support surface, a central member fixed to the support surface, a screen assembly, a compression assembly and an acceleration arrangement. The screen assembly includes a frame having a plurality of side members and a screen supported by the frame. The screen includes a semi-rigid support location and a braided mesh material on the support plate surface. The compression set is attached to the outer surface of the wall member. The compression assembly includes a retractable member that advances and contracts. The acceleration arrangement is configured to give an acceleration to the screen. As the retractable member advances, it pushes the frame against the center member, forming the screen assembly with a concave shape against the concave mating surface. The top surface of the screen assembly forms a concave screening surface.
    [007] According to an exemplary embodiment of the present invention, the vibrating screen machine includes: a screen assembly and a compression assembly. The compression assembly deforms the top surface of the screen assembly into a concave shape. The screen assembly may include a frame having a plurality of side members and a fabric supported by the frame. At least one side member can be at least one of a tube member, one member formed as a box and one formed as a flange.
    [008] The vibrating screen machine can include an acceleration or vibration and the compression assembly can be attached to at least one wall member and can be positioned on the outside of the wall member.
    [009] The vibrating screen machine may include an acceleration or vibration arrangement configured to impart an acceleration to the screen assembly. The vibrating screen machine may include a support surface, the screen assembly forming a concave shape against the support surface.
    [0010] The vibrating screen machine may include a center member. Screen sets can be arranged between the center member and the wall members. The center member can be attached to the support surface. The center member may include at least one angled surface configured to urge the screen assembly into a concave shape in accordance with deformation of the screen assembly by the compression assembly. One side member may contact the center member and another side member may contact the compression set.
    [0011] The vibrating screen may include at least one additional screen assembly with a second structure having a plurality of secondary side members and a second screen supported by the second structure. A secondary side member of the additional screen assembly may contact the center member, and a side member of the screen assembly may contact the compression assembly. The top surface of at least two sets of screens can have a concave shape.
    [0012] The vibrating screen machine may include a second compression set and a second screen set that includes a plurality of secondary side members. The secondary side member may contact the center member and the other secondary side member may contact the second compression set.
    [0013] The vibrating screen machine may include a mating surface configured to contact the screen assembly. The mating surface can include at least one of rubber, aluminum and steel. The mating surface can be a concave surface.
    [0014] At least one compression assembly may include a precompressed spring that is configured to exert a force against the screen assembly. The pre-compressed spring can exert a force against at least one side of the frame.
    [0015] The compression assembly may include a mechanism configured to adjust the amount of deflection imparted to the screen assembly. The amount of deflection given to the screen can be adjusted by a force calibration to be selected by the user.
    [0016] The compression assembly may include a retractable member that advances and contracts. The retractable member can advance and contract by means of at least one of manual force, hydraulic force and pneumatic force. The vibrating screen machine can include at least one additional compression set. Compression sets can be configured to provide force in the same direction.
    [0017] According to an exemplary embodiment of the present invention, a screen assembly for the vibrating screen machine includes: a frame including a plurality of side members and a screen supported by the frame. The screen assembly may be configured to assume a predetermined concave shape when placed in the vibrating sorting machine and subjected to a compressive force by a vibrating sorting machine press assembly against at least one side member of the screen assembly. The predetermined concave shape can be determined by a surface of the vibrating sorting machine.
    [0018] At least two side members can be at least one of tube members, box members and formed as a flange.
    [0019] The screen assembly may include a mating surface configured to interact with the surface of the vibrating screening machine. The mating surface can include at least one of rubber, aluminum and steel.
    [0020] The screen may include a braided mesh material and the structure may include flanges formed on at least two sides.
    [0021] The frame may include a perforated semi-rigid support plate and the screen may include a braided mesh material. The braided mesh material can be fixed to the support plate by at least one of gluing, welding and mechanical fixing.
    [0022] The fabric may include at least two layers of braided mesh material. The structure can include a perforated semi-rigid backing plate and the screen can include at least two layers of braided mesh material having a wave shape. At least the two layers of braided mesh material can be secured to the support plate by at least one of gluing, welding and mechanical securing.
    [0023] The plate may include a perforated semi-rigid backing plate and the screen may include at least three layers of braided mesh material with a dimple shape. At least the three layers of braided mesh material can be secured to the support plate by at least one of gluing, welding and mechanical securing.
    [0024] According to an exemplary embodiment of the present invention, the method for screening materials includes: attaching a screen assembly to the vibrating screen machine and forming an upper screening surface of the screen assembly with a concave shape . The method can also include screen set acceleration. The method may also include returning the screen assembly to its original shape, replacing the screen assembly with another screen assembly, and performing the fastening and forming steps on another screen assembly.
    [0025] According to an exemplary embodiment of the present invention, the vibrating screen machine includes: a wall member; a guide assembly attached to the wall member and having at least one mating surface; a concave support surface; a central member; a screen assembly that includes a frame with a plurality of side members and a screen supported by the frame, and the screen includes a semi-rigid support plate and a mesh material braided on a surface of the support plate, and a portion of the support plate. screen forming the mating surface of the screen assembly configured to mate with at least the mating surface of the guide assembly; a compression assembly secured to the outer surface of the wall member, and the compression assembly includes an advancing and contracting retractable member; and an acceleration arrangement configured to impart acceleration to the screen assembly, whereby, as the retractable member advances, it pushes the frame against the central member, forming the screen assembly with a concave shape against the concave mating surface. , and the upper surface of the screen assembly forming a concave screening surface.
    [0026] According to an exemplary embodiment of the present invention, the vibrating screen machine includes: a wall member; a guide assembly secured to the wall member and having at least one mating surface; a screen assembly with the screen assembly mating surface configured to mate with at least one guide assembly mating surface; and a compression assembly, the compression assembly deforming the upper surface of the screen assembly into a concave shape.
    [0027] According to an exemplary embodiment of the present invention, the screen assembly for the vibrating sorting machine includes: a frame including a plurality of side members and with a mating surface; and a screen supported by the structure, the screen assembly being configured to assume a predetermined concave shape when subjected to a compressive force by the compression assembly of the vibrating screening machine against at least one side member of the screen assembly when placed in the vibrating screening machine, wherein the mating surface of the screen assembly is configured to interface with the mating surface of the vibrating screening machine so that the screen is guided to a fixed position on the vibrating screening machine.
    [0028] According to an exemplary embodiment of the present invention, the screen assembly for the vibrating sorting machine includes: a frame including a plurality of side members; and a screen supported by the structure, the structure having a convex shape configured to mate with the concave surface of the vibrating sorting machine, and the structure being held in place by the force of a compression assembly of the vibrating sorting machine against at least one side member of the screen assembly when placed in the vibrating sorting machine.
    [0029] According to an exemplary embodiment of the present invention, the method for sorting materials includes: attaching a screen assembly to a vibrating unit of the sorting machine using a guide assembly to position the screen assembly in place; and forming an upper screening surface of the screen assembly with a concave shape. BRIEF DESCRIPTION OF THE DRAWINGS
    [0030] Figure 1 shows a perspective view of a vibrating screen machine with sets of replaceable screens installed according to an exemplary embodiment of the present invention.
    [0031] Figure 2 shows a cross-sectional view of the vibrating screen machine shown in Figure 1.
    [0032] Figure 3 shows a cross-sectional view of a vibrating screen machine with replaceable screen assemblies prior to final installation.
    [0033] Figure 4 shows a perspective view of a replaceable screen assembly according to an exemplary embodiment of the present invention.
    [0034] Figure 5 shows a perspective view of a replaceable screen assembly according to an exemplary embodiment of the present invention.
    [0035] Figure 6 shows a cross-sectional view of part of a vibrating screen machine with a pre-compressed spring compression assembly with a pin in the extended position.
    [0036] Figure 7 shows a cross-sectional view of the vibrating screen machine shown in Figure 6 with the pin in a retracted position.
    [0037] Figure 8 shows a perspective view of a machine with vibrating screen.
    [0038] Figure 9 shows a cross-sectional view of the vibrating sorting machine according to an embodiment of the present invention.
    [0039] Figure 10 shows a cross-sectional view of a vibrating screen machine according to an embodiment of the present invention.
    [0040] Figure 11 shows a perspective view of a guide assembly according to an exemplary embodiment of the present invention.
    [0041] Figure 12 shows a bottom view of the guide assembly shown in Figure 11.
    [0042] Figure 13 shows an end view of the guide assembly shown in Figure 11.
    [0043] Figure 14 shows a top view of the guide assembly shown in Figure 11.
    [0044] Figure 15 shows a top view of a replaceable fabric assembly according to an exemplary embodiment of the present invention.
    [0045] Figure 16 shows an end view of the screen assembly shown in Figure 15.
    [0046] Figure 17 shows a perspective view of a machine with vibrating screen according to an exemplary embodiment of the present invention.
    [0047] Figure 18 shows a cross-sectional view of the machine with vibrating screen according to an exemplary embodiment of the present invention.
    [0048] Figures 19 and 20 show perspective views of the structure of the intended screen assembly according to an exemplary embodiment of the present invention.
    [0049] Figures 21 and 22 show perspective views of the intended screen assemblies according to an exemplary embodiment of the present invention.
    [0050] Figure 23 shows a perspective view of a machine with vibrating screen according to an exemplary embodiment of the present invention.
    [0051] Figure 24 shows a perspective view of part of the vibrating sorting machine according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION
    [0052] Like reference characters indicate similar parts in the drawings.
    [0053] Figure 1 shows the vibrating screening machine 10 with installed replaceable screening sets 20. The material is loaded into a feed hopper 100 and then is directed to the upper surface 110 of the screen set 20. The material follows on to flow direction 120 to end 130 of vibrating sorting machine 10. Material flowing to direction 120 is contained within the concave configuration provided by screen assemblies 20. Material is prevented from exiting to the sides of screen assemblies 20 Material that is small and/or fluid passes through the screen assemblies 20 to a separate discharge material flow path 140 for further processing. Large materials exit at the exit end 13. The material in the screen can be dry, slurry, etc., and the screen assemblies 20 can be slung down from the hopper 100 to the opposite end in the direction 120 to aid in filling the material.
    [0054] The vibrating screen machine 10 includes wall members 12, concave support surfaces 14, a central member 16, an accelerating arrangement 18, screen assemblies 20 and compression assemblies 22. The central member 16 divides the machine from vibratory screening 10 in two concave screening areas. Compression assemblies 22 are attached to the outer surface of wall members 12. Vibrating sorting machines 10 may, however, have a concave sorting area with compression assemblies 22 arranged in a wall member. Such an arrangement may be desirable where space is limited and operational and maintenance personnel only have access to one side of the vibrating sorting machine. Furthermore, multiple screening areas can be provided. Although the vibrating screening machine 10 is shown with multiple sets of screens oriented longitudinally creating parallel and concave material paths, the sets of screens 20 are not limited to such a configuration and may be oriented otherwise. Additionally, multiple screening assemblies 20 can be provided to form a concave screening surface (see, for example, Figure 9).
    [0055] Screen assemblies 20 include frames 24 and screens 26. Frames 24 include side members 28. Side members 28 are formed as flanges, but can be formed from any elongated member such as tubes, members formed as boxes, channels, plates, bundles, pipes, etc. The screens 26 may include a semi-rigid perforated backing plate 80 and a braided mesh material 82 on a surface 84 of the backing plate 80 (see, for example, Figure 4). The support plate 80 does not need to be perforated, but can be configured in any manner suitable for the material sorting application. The braided mesh material can have two or more layers. The layers of the braided mesh material can be wavy in shape. The braided mesh material can be fixed to the semi-rigid support plate by gluing, welding, mechanical fixing, etc. Fabrics 26 are supported by frames 24.
    [0056] As discussed above, the compression assemblies 22 are secured to the outer surface of the wall members 12. The compression assemblies 22 include a retractable member 32 (see, for example, Figure 2) that extends and contracts. . Retractable member 32 is a pin, but can be any member configured to exert a compressive force against frame 24 to urge side members 28 toward each other to deform screen assemblies 20 into a concave profile. As determined below, the retractable member 32 advances and contracts by pneumatic and spring forces, but may also advance and contract by manual forces, hydraulic forces, etc. Also as determined below, the compression assembly 22 may be configured as pre-compressed springs (see, for example, Figures 6 to 8).
    [0057] Compression assemblies 22 may also be provided in other suitable configurations to provide a counter force to screen assemblies 20.
    [0058] As shown in Figure 1, the compression assemblies 22 include the retractable members 32, which are illustrated in Figure 1 in an extended position, applying a force against the structures 24. The structures 24 are pushed against the central member 16 , causing the screen assemblies 20 to assume a concave shape against the support surfaces 14. The central member 16 is secured to the support surface 14 and includes angled surfaces 36 (see, for example, Figures 2 and 3) that prevent that the structures 24 tilt upward when compressed. Support surfaces 14 are concave in shape and include mating surfaces 30. Support surfaces 14 may, however, have different shapes. Furthermore, the center member 16 need not be attached to the support surface 14. Additionally, the vibrating sorting machine 10 can be provided without the support surfaces. Screen assemblies may also include mating surfaces that interact with mating surfaces 305 of support surface 14. Mating surfaces of screen assemblies 20 and/or mating surfaces 30 may be made of rubber, aluminum, steel or other materials suitable for coupling.
    [0059] Acceleration arrangement 18 is attached to vibrating screening machine 10. Acceleration arrangement 18 includes a vibrator motor which causes screen assemblies 20 to vibrate.
    [0060] Figure 2 shows the side walls 12, the screen assemblies 20, the compression assemblies 22 and the support members 14 of the vibrating sorting machine 10 shown in Figure 1. The structures 24 of the screen assemblies 20 include members Sides 28. Side members 28 form flanges.
    [0061] As described above, compression assemblies 22 are mounted to wall members 12. Retractable members 32 are shown holding screen assemblies 20 in a concave shape. The materials to be separated are placed directly on the upper surfaces of the screen assemblies 20. Also as described above, the lower surfaces of the screen assemblies may include mating surfaces. The lower surfaces of the screen assemblies 20 directly interact with the mating surfaces 30 of the concave support surfaces 14 so that the screen assemblies 20 are subjected to vibrations from the accelerating arrangement 18 through, for example, the concave support surfaces 14 .
    [0062] Placing the upper surfaces of the screen assemblies 20 in a concave shape allows for the capture and centering of materials. The centralization of material flow in the screen assemblies 20 prevents materials from exiting the screening surface and potentially contaminating previously sorted materials and/or maintenance issues. For larger volumes of material flow, the screen assemblies 20 can be placed in greater compression, thereby increasing the amount of arches on the top surface and the bottom surface. A greater amount of arc in the screen assemblies 20 allows for greater material holding capacity by the screen assemblies 20 and the prevention of large material leakage off the edges of the screen assemblies 20.
    [0063] Figure 3 shows the screen sets 20 in an undeformed state. Retractable members 32 are in a retracted position. When the retractable members 32 are in the retracted position, the screen assemblies 20 can readily be replaced. The screen assemblies 10 are placed on the vibrating screening machine 10 so that the side members 28 are in contact with the angled surfaces 36 of the central member 16. Although the replaceable screen assemblies 20 are in the undeformed state, the retractable members 32 are placed in contact with the screen assemblies 20. The angled surface 36 prevents the side members 28 from being deflected upward. When compression arrangement 22 is activated, retractable members 32 extend from compression assembly 22, causing the total horizontal distance between retractable members and angled surfaces 36 to decrease. As the total horizontal distance decreases, the individual screen assemblies 20 deflect downward 29, coming into contact with the support surfaces 30 (as shown in Figure 2). The angled surfaces 36 are also provided so that the screen assemblies 20 are installed on the vibrating sorting machine 10 in an appropriate arc configuration. Different bow configurations can be provided based on the degree of extension of the retractable members 32. The extension of the retractable members 32 is accomplished by constant spring pressure against the body of the compression arrangement 22. The retraction of the retractable members 32 is accomplished by mechanical activation, by electromechanical activation, by pneumatic pressure or by hydraulic pressure, which compress the contained spring, thereby retracting the retractable member 32 into the compression arrangement 22. Other extension and retraction arrangements may be used which include arrangements configured for manual operation, etc. (See, for example, Figures 6 to 8). Compression assembly 22 may also include a mechanism for adjusting the amount of deflection imparted to mesh assemblies 20. Additionally, the amount of deflection imparted to mesh assemblies 20 may be adjusted by a force calibration to be selected by the user.
    [0064] Figure 4 shows a replaceable screen assembly 20. The screen assembly 20 includes frame 24 and screen 26. Frame 24 includes side members 28. Frame 24 includes a perforated semi-rigid support plate 80, and the screen 26 includes a braided mesh material 82 on the surface of support plate 80. Screen 26 is supported by frame 24. Screen assembly 20 is configured to assume a predetermined concave shape when placed on a vibrating sorting machine and subjected to appropriate forces.
    [0065] Figure 5 shows a replaceable screen assembly 21. The screen assembly 21 includes the frame 25 and a corrugated screen 27. The structure 25 includes side members 29 and a semi-rigid perforated support plate 81. The corrugated screen 27 includes a braided mesh material 83 on the surface of the support plate 81. The corrugated screen 27 is supported by the frame 25. The screen assembly 21 is configured to assume a predetermined concave shape when placed on a vibrating sorting machine and subjected to appropriate forces .
    [0066] Figures 6 to 8 show a precompressed spring compression assembly 23. The precompressed spring compression assembly 23 can be used following or in conjunction with the compression assembly 22. The precompressed spring compression assembly -compressed spring includes a spring 86, a retractor 88, a fulcrum plate 90, and a pin 92. The pre-compressed spring compression assembly 23 is secured to the wall member 12 of the vibrating screen machine 10.
    [0067] In Figure 6, the precompressed spring compression assembly 23 is shown with pin 92 in an extended position. In this position, the pin 92 exerts a force against the screen assembly so that the screen assembly assumes a concave shape.
    [0068] In Figure 7, pin 92 is shown in a retracted position. To retract pin 92, a grip 34 is inserted into the opening in retractor 88 and pressed against fulcrum plate 90 in direction 96. The force in retractor 88 causes spring 86 to deflect and 92 to retract. A surface may be provided to hold the pre-compressed spring compression assembly 23 in the retracted position.
    [0069] Although a simple lever retraction system is shown, alternative arrangements and systems can be used.
    [0070] In Figure 8, the vibrating screen machine is shown with multiple sets of pre-compressed spring compression 23. Each compression set can correspond to a respective set of screen 20 so that the installation and replacement of the set of fabric 20 require the contraction of a single corresponding compression set 23. Multiple pins 92 may be provided in each of the pre-compressed spring compression sets 23. As determined above, other mechanical compression sets may be used.
    [0071] Figure 9 shows the vibrating screening machine 10 with multiple sets of screen 20 forming a concave surface. The first screen assembly 20 has one side member 28 in contact with the pin members 32 and another side member 28 in contact with the side member 28 of a second screen assembly 20. The second screen assembly 20 has another side member 28 in contact with the central member 16. As shown, the pin members 32 are in the extended position and the screen assemblies 20 have a concave shape. The force exerted by the pin members 32 causes the screen assemblies 20 to push against each other and the center member 16. As a result, the screen assemblies deflect into a single concave shape. Side members 28 that are in contact with each other may include brackets or other fastening mechanisms configured to secure the screen assemblies 20 together. Although two screen sets are shown, multiple screen sets can be provided in similar configurations. Using multiple screen sets can provide reduced weight in handling individual screen sets as well as limit the amount of screening area that needs to be replaced when a screen set becomes damaged or worn out.
    [0072] Figure 10 shows the machine with vibrating screen 10 without the central member. The vibrating screen machine 10 includes at least two compression assemblies 22 that have retractable members 32 that extend toward each other. The retractable members 32, which are shown in the extended position, exert a force against the side members 28 of the screen assemblies 20, causing the screen assemblies 20 to assume a concave shape and replacing the screen assembly with another screen assembly.
    [0073] Figures 11 to 14 show the guide set 200. The guide set 200 can be fixed to the wall 12 of the vibrating sorting machine 10 and includes mating surfaces or guide surfaces 202, 204 that are configured to guide the set of replaceable screen 220 into position on vibrating screening machine 10. See, for example, Figure 19. Guide assembly 200 is configured so that an operator can easily and consistently position or slide replaceable screen assembly 220 into a desired position on the vibrating screening machine 10. By guiding screen assembly 220 into position, mating surfaces 202, 204 of guide assembly 200 interface with a mating mating surface 240 of screen assembly 220. Guide assemblies 200 prevent fabric assembly 220 from moving to unwanted positions and act to easily secure fabric assembly 220 in place so that compression assemblies 22, as described herein, can m acting correctly on screen assembly 220. Guide assembly 200 may have any shape suitable for positioning screen assembly 220 in place, including, but not limited to, triangular shapes, circular shapes, square shapes, arched shapes, etc. Likewise, screen assembly 220 may include a portion (see, for example, notch 230 in Figure 15) with a corresponding shape configured to interface and/or couple to a corresponding guide assembly.
    [0074] As shown in Figures 11 to 14, the guide assembly 200 is an elongated member having a first end 206 with angled surfaces 208, a second end 210, a rear surface 212, mating surfaces 202, 204 and a column center 214, and rear surface 212 can be secured to wall 12 and may include tabs 216 and an embossed portion 218 to facilitate attachment to wall 12 so that guide assembly 200 is in a generally vertical position with first end 206 facing up and the second end 210 facing downwards. See, for example, Figure 23. As shown in Figures 11 through 14, the mating surfaces 202, 204 slope towards the center column 214 and mate with the side surfaces of the center column 214. As seen in the Figure 13, center column 214 extends beyond mating surfaces 202 and 204 and may serve to position and/or separate two separate replaceable screen assemblies, the first screen assembly having a surface that interfaces with mating surface 202 and the second screen assembly having a surface that interfaces with the mating surface 204. As shown in this exemplary embodiment, the mating surfaces 202, 204 assume a generally triangular shape where one of the interfaces of the mating surfaces 202, 204 engages with the mating surface of the screen assembly 220 so that, during insertion of the screen assembly 220 into the sorting machine 10, the screen assembly 220 can be guided to the angled one of the mating surfaces 202, 204 into a fixed position so that the retractable members 32 can push against the frame 228 of the screen assembly 220. See Figures 15 and 23. The angled surfaces 208 of the first end 206 they have a generally slanted shape, so that the mating surface of the screen assembly 220 does not lock and slide easily into the guide assembly 200. The guide assembly 200 can be fixed to the wall 12 in any way so that it is secured in one position. desired. For example, it can be welded in place, fixed with an adhesive, or have a mechanism, such as a tab, that locks it in place. In addition, guide assembly 200 can be configured to be removable from wall 12 so that it can be easily relocated, for example, using tabs and notches, along wall 12, to accommodate multiple or different sized screen assemblies.
    [0075] Figures 15 through 16 show the replaceable screen assembly 220. The replaceable screen assembly 220 includes a frame 228 and screens 222. The screen assembly 220 may be identical or similar to the screen assemblies 20 as described herein and include all features of screen sets 20 (structure settings, screen settings, etc.) as described herein. Screen assembly 220 includes notches 230 configured to receive guide assembly 200. Notches 230 include mating surfaces 240 that mate with or interface with mating surfaces 202, 204 of guide assembly 200. Although notches 230 are shown as an angular cutout of a corner of screen assembly 220, they can be any shape that receives guide assembly 200 and positions screen assembly 220 in a desired position on the sorting machine 10. In addition, mating surfaces 240 may have any shape needed to guide the screen assembly 220 into a desired position.
    [0076] Figure 17 shows the machine with vibrating screen 10 with guide sets 200 and the screen set 250 intended. The target screen assembly 250 is shown positioned in place by the first guide assembly 200. The target screen assembly 250 includes a frame 252 and a screening surface 254. Frame 252 has a convex shape and is configured to fit the concave bed of the sorting machine 10. As shown, sorting surface 254 is flat with a corrugated screen. Screening surface 254 can also be preformed into a concave shape. Compression members 22 act to hold the intended screen assembly 250 in place (by pushing it against the central member 16) without substantially deforming the upper surface of the screen assembly 250 into a concave shape. Similar to the screen assemblies 220 discussed above, the intended screen assembly 250 includes notches configured to receive guide assembly 200. The notches include mating surfaces that mate with or interface with mating surfaces 202, 204 of guide assembly 200. Although the notches are shown as an angled cutout of a corner of the intended screen assembly 250, it can be any shape that receives the guide assembly 200 and positions the intended screen assembly 250 in a desired position on the sorting machine 10. In addition Furthermore, the mating surfaces of the desired screen assemblies may have any shape necessary to guide the desired screen assembly 250 into the desired position. Multiple guide sets and screens can be included with the screening machine 10. The desired screen set 250 can also be configured without notches so that it will fit the vibrating screening machine that does not have guide sets.
    [0077] Figure 18 shows the sorting machine 10 with the desired screen assemblies 260, 270. The target screen assemblies 260, 270 include the same features as the target screen assembly 250 as described herein. Screen assembly 260 is shown with frame 262 and screening surface 264 flat. Screen assembly 270 is shown with frame 272 and corrugated sorting surface 274. Target screen assemblies 260, 270 may also be configured without notches so that they will fit a vibrating sorting machine that does not have guide assemblies.
    [0078] Figures 19 and 20 show the structure 252 of the intended screen assembly 250. The structure 252 includes the screen support surface 255 and the transverse support members 256 that have convex arcs for mating and that are supported by a concave support surface of vibrating screening machine 10.
    [0079] Figure 21 shows the intended screen assemblies 270 with the flat screen 274 attached to the frame 272.
    [0080] Figure 22 shows the intended screen assembly 260 with the flat screen 264 attached to the frame 262.
    [0081] Figure 23 shows the vibrating screen machine 10 with multiple sets of screen 220 positioned using guide sets 200. As shown, the center screen set 220 is positioned on the sorting machine 10 by first placing the edge of the frame 222 against center member 36 and then lowering it into place using guide assemblies 200.
    [0082] Figure 24 shows a close-up view of part of a vibrating sorting machine that includes a guide block (or guide assembly) and screen assemblies according to an exemplary embodiment of the present invention.
    [0083] According to another exemplary embodiment of the present invention, a method is presented that includes attaching a screen assembly to a vibrating unit of the sorting machine using a guide assembly to position the screen assembly in place and forming the upper screening surface of the screen assembly with a concave shape. An operator may position the screen assembly in place by first pushing the edge of the screen assembly frame against the center member of the sorting machine and then lowering the screen assembly into place using the guide assemblies to guide, position and/or secure the screen assembly in the desired position so that the upper screening surface can then be formed with a concave shape.
    [0084] Exemplary embodiments are described above. However, it will be evident that various modifications and changes can be made to them without departing from their broader character and scope. The descriptive report and drawings must therefore be considered in an illustrative rather than a restrictive sense.
    权利要求:
    Claims (20)
    [0001]
    1. VIBRATORY SCREENING MACHINE, characterized by comprising: a wall member (12); a guide assembly (200) secured to the wall member (12) and having at least one mating surface (202, 204); a screen assembly (20, 21, 220, 250, 260, 270) having a frame (24, 25, 228, 252, 262, 272), a screening surface, and a screen assembly mating surface ( 240) configured to mate with at least one mating surface (202, 204) of the guide assembly; and a compression assembly (22, 23) secured to the wall member (12) and having a retractable member (32), wherein at least one mating surface (202, 204) of the guide assembly (200) interfaces with the mating surface of the screen assembly (240) thus positioning the screen assembly (20,21, 220, 250, 260, 272) on the vibrating sorting machine while the screen assembly (20, 21, 220, 250, 260 , 270) is in an undeformed state, and wherein the screen assembly (20, 21, 220, 250, 260, 270) is located in a position by the guide assembly (200) on the vibrating sorting machine, of so that a portion of the frame (24, 25, 228, 252, 262, 272) is positioned to interact with the retractable member (32), whereby the retractable member (32) contacts the frame (24, 25, 228, 252, 262, 272) and deforms the screen assembly (20, 21, 220, 250, 260, 270) into a concave shape, forms a concave shape screening surface.
    [0002]
    2. VIBRATORY SCREENING MACHINE, according to claim 1, characterized in that the guide assembly is detachably fixed to the wall member.
    [0003]
    3. VIBRATORY SCREENING MACHINE according to claim 1, characterized in that the guide assembly includes a first coupling surface and a second coupling surface, and the first coupling surface is configured to interface with the coupling surface of the set of screen and the second mating surface is configured to interface with the other mating surface of the other screen assembly.
    [0004]
    4. VIBRATORY SCREENING MACHINE, according to claim 1, characterized in that the guide assembly forms part of the wall member.
    [0005]
    5. VIBRATORY SCREENING MACHINE, according to claim 1, characterized in that it additionally comprises: a contact member; and a concave support surface positioned between the wall member and the contact member; wherein the retractable member pushes the screen assembly against the contact member deforming the screen assembly to concave shape against the concave support surface.
    [0006]
    6. VIBRATORY SCREENING MACHINE, according to claim 5, characterized in that the contact member is a central member.
    [0007]
    7. VIBRATORY SCREENING MACHINE, according to claim 5, characterized in that the contact member is at least one of the second wall member and one member fixed to the second wall member.
    [0008]
    8. VIBRATORY SCREENING MACHINE, according to claim 1, characterized in that it additionally comprises: a concave support surface; a central member; and an accelerating arrangement configured to impart acceleration to the screen assembly, wherein the screen assembly includes a semi-rigid support plate and a mesh material woven into a surface of the support plate where, as the retractable member advances , it pushes the frame against the central member, forming the screen assembly in the concave shape against the concave mating surface, and the upper surface of the screen assembly forms the concave screening surface.
    [0009]
    9. VIBRATORY SCREENING MACHINE according to claim 8, characterized in that the guide assembly comprises an elongated member having a first end, a second end, a rear surface, a first coupling surface, a second coupling surface, and the The rear surface is attached to the wall member such that the elongate member is in a generally vertical position with the first end facing upwards and the second end facing downwards, and the first and second mating surfaces slant in a from the other and are generally triangular in shape with the rear surface, at least one of the first and second mating surfaces interfacing with the mating surface of the screen assembly so that during insertion of the screen assembly on the sorting machine, the screen assembly can be guided along the first or second mating surfaces to a p. fixed position.
    [0010]
    10. VIBRATORY SCREENING MACHINE, according to claim 8, characterized in that the guide assembly is detachably fixed to the wall member.
    [0011]
    11. VIBRATORY SCREENING MACHINE, according to claim 8, characterized in that the guide assembly forms part of the wall member.
    [0012]
    12. SCREEN ASSEMBLY FOR A VIBRATORY SCREENING MACHINE, as defined in claim 1, characterized in that it comprises: a structure (24, 25, 228, 252, 262, 272); a screen (26, 27, 222) supported by the frame (24, 25, 228, 262, 272); and a screen assembly attachment surface (240); wherein the screen assembly is configured so that it forms a predetermined concave shape when subjected to a compressive force by a compression assembly member (22, 23) of the vibrating sorting machine, and wherein the attachment surface of the screen assembly (240) is configured to interface with an attachment surface (202, 204) of the vibrating sorting machine so that the screen is guided to a predetermined position in a vibrating sorting machine.
    [0013]
    13. SCREEN ASSEMBLY, according to claim 12, characterized in that the fastening surface of the screen assembly is a notch formed in the corner of the structure.
    [0014]
    A SCREEN ASSEMBLY according to claim 12, characterized in that the frame further comprises a plurality of side members, and wherein the fabric assembly is configured to receive the compressive force of the compression assembly member asserted against at least one side member of the screen assembly when the screen assembly is placed in the vibrating screening machine.
    [0015]
    15. SCREEN ASSEMBLY according to claim 14, characterized in that the mating surface of the screen assembly is a notch formed in a corner of the structure.
    [0016]
    16. SCREEN ASSEMBLY according to claim 12, characterized in that the structure further comprises a plurality of side members, and wherein the structure has a convex shape configured to mate with the concave surface of the vibrating sorting machine, and the The frame is held in place by the compressive force asserted by the compression assembly against at least one side member of the frame when the screen assembly is placed in the vibrating sorting machine.
    [0017]
    17. METHOD FOR SCREENING MATERIALS, characterized in that it comprises: the positioning of the screen assembly (20, 21, 220, 250, 260, 270) in a vibrating sorting machine, as defined in claim 1, using a guide assembly (200 ) guiding the screen assembly (20, 21, 220, 250, 260, 270) to a predetermined position; and attaching the screen assembly (20, 21, 220, 250, 260, 270) to the vibrating sorting machine by activating a member of a compression assembly (22, 23) that deforms the screen assembly (20, 21, 220, 250, 260, 270) in a concave shape so that the top surface (110) of the screen assembly (20, 21, 220, 250, 260, 270) forms a concave screening surface.
    [0018]
    18. The method according to claim 17, characterized in that the sorting machine includes a contact member and a concave support surface, and wherein the compression assembly member presses the screen assembly against the contact member and the surface of concave support.
    [0019]
    19. METHOD according to claim 18, characterized in that the contact member is a central member.
    [0020]
    20. METHOD according to claim 18, characterized in that the contact member is a wall member.
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    同族专利:
    公开号 | 公开日
    US20160263621A1|2016-09-15|
    CA2767819C|2015-05-12|
    AU2013205169B2|2017-07-27|
    AU2010273580A1|2012-01-19|
    CN102470398A|2012-05-23|
    CA2839713C|2016-06-21|
    EA202092805A1|2021-05-31|
    EP2454027A1|2012-05-23|
    HK1209382A1|2016-04-01|
    CN104525468A|2015-04-22|
    AU2013205169A1|2013-05-16|
    US20190321859A1|2019-10-24|
    US9370797B2|2016-06-21|
    CA2839734A1|2011-01-20|
    CN102470398B|2014-12-10|
    US10363577B2|2019-07-30|
    US20130175205A1|2013-07-11|
    CA2839713A1|2011-01-20|
    CA3048712A1|2011-01-20|
    BR112012000459A2|2017-07-11|
    CN104525468B|2018-07-10|
    EA201290043A1|2012-08-30|
    EA038742B1|2021-10-13|
    US20150041371A1|2015-02-12|
    US20180141086A1|2018-05-24|
    US8910796B2|2014-12-16|
    CA2839734C|2017-06-13|
    CA2935526A1|2011-01-20|
    EP2454027A4|2013-08-07|
    US8443984B2|2013-05-21|
    US9884345B2|2018-02-06|
    HK1171204A1|2013-03-22|
    CA2767819A1|2011-01-20|
    CA2935526C|2019-07-09|
    US20090321328A1|2009-12-31|
    WO2011008691A1|2011-01-20|
    CA3048712C|2021-10-12|
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    法律状态:
    2019-01-15| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-08-27| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-02-02| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|
    2021-06-08| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-07-06| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 12/07/2010, OBSERVADAS AS CONDICOES LEGAIS. PATENTE CONCEDIDA CONFORME ADI 5.529/DF, QUE DETERMINA A ALTERACAO DO PRAZO DE CONCESSAO. |
    优先权:
    申请号 | 申请日 | 专利标题
    US12/460,200|2009-07-15|
    US12/460,200|US8443984B2|2007-03-21|2009-07-15|Method and apparatus for screening|
    PCT/US2010/041700|WO2011008691A1|2009-07-15|2010-07-12|Method and apparatuses for screening|
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