Filter press filter cake stripping mechanism and stripping method

Abstract

The present invention belongs to the technical field of filter presses, and discloses a filter press filter cake stripping mechanism and stripping method, including a supporting crossbeam, on which a plate pulling trolley is provided, and further including: a supporting assembly, which is installed on the top of the supporting crossbeam; a filter plate assembly, which is provided on the supporting crossbeam; a transmission assembly, which is provided on the supporting assembly; a guide assembly, which is fixed to the side of the supporting assembly; wherein the filter plate assembly includes a filter plate provided on the supporting crossbeam. The present invention pulls the filter plates one by one along the top of the supporting crossbeam to move and separate by the plate pulling trolley. Since the two ends of the filter cloth are connected to two adjacent filter plates, the filter cloth is gradually stretched during the movement of one filter plate, so that the distance between the two ends of the filter cloth gradually increases to form an inverted "V" shape, thereby facilitating the separation of the mud cake in the filter cloth, improving the efficiency of the mud cake separation, and reducing the tediousness of the mud cake separation.

Description

Technical Field

[0001] The invention belongs to the technical field of filter presses, and in particular relates to a filter cake stripping mechanism and a stripping method for a filter press. Background Art

[0002] The working principle of the filter press is mainly to use a hydraulically driven diaphragm pump to inject a mixed liquid (such as slurry) into the filter chamber formed by adjacent filter plates. After filling, continue to pump the material to apply pressure to the mixed liquid in the filter chamber, so that most of the liquid passes through the filter cloth and flows out from the grooves on the filter plate; then, use high-pressure air to evenly pass through the entire cross-section of the filter cake to take away the residual moisture in the filter cake; finally, the main hydraulic cylinder starts to work, and the connecting rod drives the moving plate to squeeze the filter chamber and discharge the remaining moisture. At present, when the filter press treats sewage, the filtered water is discharged through the pipeline, and the mud in the water is located on the filter plate. By applying pressure to the filter plate, the mud in the chamber forms a mud cake, but due to the high viscosity of the mud cake, when the filter plate is separated, the mud cake often cannot be completely separated, so it is necessary to knock the filter plate to assist in the separation of the mud cake. The operation in this process is relatively cumbersome, so a filter press filter cake stripping mechanism and stripping method are proposed. Summary of the invention

[0003] In order to solve the problems raised in the above-mentioned background technology, the present invention provides a filter press filter cake stripping mechanism and stripping method, which solves the problem that due to the high viscosity of the mud cake, the mud cake often cannot be completely separated when the filter plate is separated, so it is necessary to knock the filter plate to assist in the separation of the mud cake, which is a cumbersome operation.

[0004] To achieve the above object, the present invention provides the following technical solution: a filter cake stripping mechanism for a filter press, comprising a supporting crossbeam, a plate pulling trolley is arranged on the supporting crossbeam, and further comprising:

[0005] A support assembly, the support assembly being mounted on the top of the support beam;

[0006] A filter plate assembly, wherein the filter plate assembly is arranged on the supporting crossbeam;

[0007] A transmission assembly, wherein the transmission assembly is arranged on the support assembly;

[0008] A guide assembly, the guide assembly being fixedly mounted on a side portion of the support assembly;

[0009] Wherein, the filter plate assembly comprises a filter plate arranged on the supporting crossbeam, and filter cloths are arranged on opposite surfaces of two adjacent filter plates;

[0010] The support assembly includes a stabilizing frame, on which a transmission gear is movably mounted;

[0011] The transmission assembly comprises a limit block movably sleeved on the stabilizing frame, a tooth plate meshing with the transmission gear is fixedly mounted on the side of the limit block, a limit plate is fixedly mounted on the bottom of the tooth plate, and a fixing rod is movably sleeved on the bottom of the limit plate through a docking plate;

[0012] A clamping plate for clamping the filter cloth is fixedly mounted at the bottom of the fixing rod.

[0013] Preferably, the transmission assembly further comprises second docking blocks fixedly mounted on both ends of the fixing rod, first connecting blocks are fixedly mounted on both sides of the filter plate, a transmission rod is movably sleeved on the outside of the first connecting block, and the other end of the transmission rod is movably sleeved on the outside of the second docking block;

[0014] In an initial state, a plurality of filter plates are in contact with each other to form a chamber.

[0015] Preferably, the support assembly further comprises a support frame fixedly mounted on the top of the support beam, and a guide rack is fixedly mounted on the support frame;

[0016] The stabilizing frame is sleeved on the outside of the guide rack through a sliding groove, and the central axis of the transmission gear and the middle part of the filter cloth are kept vertical;

[0017] The filter plate is pulled apart by the plate pulling trolley, and the transmission gear moves synchronously along the guide rack. The tooth plate moves downward under the action of the transmission gear to reduce the height of the middle part of the filter cloth, so that the distance between the two ends of the filter cloth gradually increases.

[0018] Preferably, the guide assembly comprises a fixing plate fixed to a side portion of the stabilizing frame, and a guide groove is formed on the fixing plate.

[0019] Preferably, the second docking block moves in the guide groove;

[0020] The tooth plate moves downward along the stabilizing frame, the second docking block moves along the guide groove, and the middle part of the filter cloth is swung through the clamping plate.

[0021] Preferably, the filter plate assembly further comprises a card slot provided on the side of the filter plate, a rubber pad is arranged in the card slot, and a card block is fixedly mounted on the other side of the filter plate.

[0022] Preferably, the card block is adapted to the card slot;

[0023] The two filter plates are in contact with each other, the clamping block on one filter plate is clamped in the clamping groove on the other filter plate, and the rubber pad is located between the clamping block and the filter plate.

[0024] Preferably, the two filter plates are in contact with each other, and both ends of the filter cloth are in contact to form a sealed cavity.

[0025] The present invention also provides a method for stripping filter cake from a filter press, comprising the following steps:

[0026] S1. Multiple groups of filter plates are contacted with each other to form a chamber to treat sewage. Water is discharged through pipes, while sludge is located in the chamber to form mud cakes. The filter plates are pulled one by one by the plate pulling trolley to move and separate along the top of the supporting beam. Since the two ends of the filter cloth are connected to the two adjacent filter plates, the filter cloth is gradually stretched during the movement of one filter plate, so that the distance between the two ends of the filter cloth gradually increases to form an inverted "V" shape;

[0027] S2. During the process of pulling the filter plate to separate, the transmission gear moves along the guide rack. Since the central axis of the transmission gear and the middle part of the filter cloth remain vertical, the distance between the two ends of the filter cloth gradually increases during the process of pulling the filter plate to separate, and the transmission gear moves synchronously along the guide rack to ensure that the filter cloth is always in a flat state;

[0028] S3. The tooth plate moves downward under the action of the transmission gear. Since the second docking block moves in the guide groove, the tooth plate moves downward to push the second docking block to move along the guide groove, and the middle part of the filter cloth follows the movement of the guide groove through the clamping plate and the fixing rod, so that the filter cloth mud cake is separated.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] The present invention uses a plate pulling trolley to pull the filter plates one by one to move and separate along the top of the supporting crossbeam. Since the two ends of the filter cloth are connected to two adjacent filter plates, the filter cloth is gradually stretched during the movement of one filter plate, so that the distance between the two ends of the filter cloth gradually increases to form an inverted "V" shape, thereby facilitating the separation of the mud cake in the filter cloth, improving the efficiency of the mud cake separation, and reducing the tediousness of the mud cake separation.

[0031] The present invention separates the filter plates one by one by pulling the plate pulling trolley, increases the distance between the two ends of the filter cloth to separate the mud cake, and during the separation process, the transmission gear moves along the guide rack, and the tooth plate moves downward under the action of the transmission gear. Since the second docking block moves in the guide groove, the second docking block is pushed to move along the guide groove by the downward movement of the tooth plate, and the middle part of the filter cloth follows the movement of the guide groove through the clamping plate and the fixing rod, thereby improving the effect of separating the filter cloth and mud cake. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention;

[0033] Figure 2 It is a schematic diagram of the partial appearance structure of the present invention;

[0034] Figure 3 This is a schematic diagram of the coordination structure between the support assembly and the transmission assembly of the present invention;

[0035] Figure 4It is a schematic diagram of the matching structure of the transmission assembly, the guide assembly and the filter plate assembly of the present invention;

[0036] Figure 5 It is a schematic diagram of the cross-sectional structure of the filter plate assembly of the present invention;

[0037] Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle;

[0038] Figure 7 This is a schematic diagram of the disassembled structure of the transmission assembly and the filter plate assembly of the present invention;

[0039] Figure 8 It is a schematic diagram of the matching structure of the filter plate assembly of the present invention.

[0040] In the figure: 1. Support beam; 2. Plate pulling trolley; 3. Support assembly; 31. Support frame; 32. Guide rack; 33. Transmission gear; 34. Stabilizing frame; 35. Slide; 4. Filter plate assembly; 41. Filter plate; 42. Filter cloth; 44. Rubber pad; 45. First connecting block; 46. Slot; 47. Block; 5. Guide assembly; 51. Fixed plate; 52. Guide slot; 6. Transmission assembly; 61. Tooth plate; 62. Limit block; 63. Limit plate; 64. Docking plate; 65. Fixed rod; 66. Clamping plate; 67. Second docking block; 68. Transmission rod. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] like Figures 1 to 8 As shown, the present invention provides a filter cake stripping mechanism for a filter press, comprising a supporting crossbeam 1, a plate pulling trolley 2 is arranged on the supporting crossbeam 1, and further comprising:

[0043] A support assembly 3, the support assembly 3 is installed on the top of the supporting beam 1;

[0044] A filter plate assembly 4, the filter plate assembly 4 is arranged on the supporting beam 1;

[0045] A transmission assembly 6, the transmission assembly 6 is arranged on the support assembly 3;

[0046] A guide assembly 5, the guide assembly 5 is fixed to the side of the support assembly 3;

[0047] The filter plate assembly 4 includes a filter plate 41 disposed on the supporting beam 1, and filter cloths 42 are disposed on opposite surfaces of two adjacent filter plates 41;

[0048] The support assembly 3 includes a stabilizing frame 34 on which a transmission gear 33 is movably mounted;

[0049] The transmission assembly 6 includes a limit block 62 movably sleeved on the stabilizing frame 34, a tooth plate 61 meshing with the transmission gear 33 is fixedly mounted on the side of the limit block 62, a limit plate 63 is fixedly mounted on the bottom of the tooth plate 61, and a fixing rod 65 is movably sleeved on the bottom of the limit plate 63 through a docking plate 64;

[0050] A clamping plate 66 for clamping the filter cloth 42 is fixedly mounted at the bottom of the fixing rod 65;

[0051] The transmission assembly 6 also includes a second docking block 67 fixedly mounted on both ends of the fixing rod 65, and a first connecting block 45 is fixedly mounted on both sides of the filter plate 41. A transmission rod 68 is movably sleeved on the outside of the first connecting block 45, and the other end of the transmission rod 68 is movably sleeved on the outside of the second docking block 67.

[0052] In the initial state, a plurality of filter plates 41 are in contact with each other to form a chamber.

[0053] The sewage is treated by forming a chamber by contacting multiple groups of filter plates 41. The water is discharged through the pipe, and the sludge is located in the chamber to form a mud cake. The filter plates 41 are pulled one by one by the plate pulling trolley 2 to move and separate along the top of the supporting beam 1. Since the two ends of the filter cloth 42 are connected to the two adjacent filter plates 41, the filter cloth 42 is gradually stretched during the movement of one filter plate 41, so that the distance between the two ends of the filter cloth 42 gradually increases to form an inverted "V" shape, thereby facilitating the separation of the mud cake in the filter cloth 42, improving the efficiency of the mud cake separation, and reducing the tediousness of the mud cake separation. At the same time, the transmission rod 68 drives the clamping plate 66, the fixing rod 65 and the tooth plate 61 to move downward, ensuring that the middle part of the filter cloth 42 moves vertically downward to avoid wrinkles in the filter cloth 42;

[0054] After the mud cake separation is completed, the filter plates 41 are pushed into contact with each other by the hydraulic device to form a separation chamber. At this time, the tooth plate 61 is pushed upward by the transmission rod 68, and the middle part of the filter cloth 42 is pulled upward by the clamping plate 66, thereby ensuring that the filter cloth 42 is always in a taut state and is flatly located between the two filter plates 41.

[0055] like Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown, the support assembly 3 also includes a support frame 31 fixedly mounted on the top of the support beam 1, and a guide rack 32 is fixedly mounted on the support frame 31;

[0056] The stabilizing frame 34 is sleeved on the outside of the guide rack 32 through the slide groove 35, and the central axis of the transmission gear 33 and the middle part of the filter cloth 42 are kept vertical;

[0057] The filter plate 41 is pulled apart by the plate pulling trolley 2, and the transmission gear 33 moves synchronously along the guide rack 32. The toothed plate 61 moves downward under the action of the transmission gear 33 to lower the height of the middle part of the filter cloth 42, so that the distance between the two ends of the filter cloth 42 gradually increases.

[0058] The filter plates 41 are pulled one by one by the plate pulling trolley 2 to separate the multiple filter plates 41 one by one. During the separation process, the transmission gear 33 moves along the guide rack 32. Since the central axis of the transmission gear 33 and the middle part of the filter cloth 42 remain vertical, the distance between the two ends of the filter cloth 42 gradually increases during the separation process of pulling the filter plate 41, and the transmission gear 33 moves synchronously along the guide rack 32 to ensure that the filter cloth 42 is always in a flat state.

[0059] like Figure 3 , Figure 4 and Figure 7 As shown, the guide assembly 5 includes a fixing plate 51 fixed to the side of the stabilizing frame 34, and a guide groove 52 is formed on the fixing plate 51;

[0060] The second docking block 67 moves in the guide groove 52;

[0061] The tooth plate 61 moves downward along the stabilizing frame 34 , the second docking block 67 moves along the guide groove 52 , and causes the middle portion of the filter cloth 42 to swing through the clamping plate 66 .

[0062] The filter plates 41 are pulled and separated one by one by the plate pulling trolley 2, and the distance between the two ends of the filter cloth 42 is increased to separate the mud cake. During the separation process, the transmission gear 33 moves along the guide rack 32, and the tooth plate 61 moves downward under the action of the transmission gear 33. Since the second docking block 67 moves in the guide groove 52, the second docking block 67 is pushed to move along the guide groove 52 by the downward movement of the tooth plate 61, and the middle part of the filter cloth 42 follows the movement of the guide groove 52 through the clamping plate 66 and the fixing rod 65, thereby improving the effect of separating the mud cake of the filter cloth 42, and the docking plate 64 rotates at the hinge with the limit plate 63 to ensure that the tooth plate 61 moves downward normally.

[0063] like Figure 4-Figure 8 As shown, the filter plate assembly 4 further includes a slot 46 opened on the side of the filter plate 41, a rubber pad 44 is arranged in the slot 46, and a block 47 is fixedly installed on the other side of the filter plate 41;

[0064] The card block 47 is matched with the card slot 46;

[0065] The two filter plates 41 are in contact with each other, the block 47 on one filter plate 41 is engaged in the slot 46 on the other filter plate 41, and the rubber pad 44 is located between the block 47 and the filter plate 41;

[0066] The two filter plates 41 are in contact with each other, and both ends of the filter cloth 42 are in contact with each other to form a sealed cavity.

[0067] The filter plates 41 are pushed by a hydraulic device to make the multiple filter plates 41 contact each other, and the two ends of the filter cloth 42 contact each other to form a separation cavity, and the block 47 on one filter plate 41 is engaged in the other card groove 46, so as to seal the cavity formed between the two filter plates 41 to prevent sewage from seeping through the gap between the two filter plates 41, thereby improving the sewage effect, and at the same time, the rubber pad 44 can reduce the wear caused by the contact between the two filter plates 41, and the rubber pad 44 is replaced regularly.

[0068] The present invention also provides a method for stripping filter cake from a filter press, comprising the following steps:

[0069] S1. The sewage is treated by forming a chamber through contact between multiple groups of filter plates 41. The water is discharged through the pipe, and the sludge is located in the chamber to form a mud cake. The filter plates 41 are pulled one by one by the plate pulling trolley 2 to move and separate along the top of the supporting beam 1. Since the two ends of the filter cloth 42 are connected to the two adjacent filter plates 41, the filter cloth 42 is gradually stretched during the movement of one filter plate 41, so that the distance between the two ends of the filter cloth 42 gradually increases to form an inverted "V" shape;

[0070] S2, the transmission gear 33 moves along the guide rack 32 during the separation process of pulling the filter plate 41 by the plate pulling trolley 2. Since the central axis of the transmission gear 33 and the middle part of the filter cloth 42 remain vertical, the distance between the two ends of the filter cloth 42 gradually increases during the separation process of pulling the filter plate 41, and the transmission gear 33 moves synchronously along the guide rack 32 to ensure that the filter cloth 42 is always in a flat state;

[0071] S3. The tooth plate 61 moves downward under the action of the transmission gear 33. Since the second docking block 67 moves in the guide groove 52, the tooth plate 61 moves downward to push the second docking block 67 to move along the guide groove 52, and the middle part of the filter cloth 42 moves along the guide groove 52 through the clamping plate 66 and the fixing rod 65, so that the filter cloth 42 and the mud cake are separated.

[0072] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0073] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter cake stripping mechanism for a filter press, comprising a supporting crossbeam (1), a plate pulling trolley (2) being arranged on the supporting crossbeam (1), characterized in that: Also includes: A support assembly (3), the support assembly (3) being mounted on the top of the support beam (1); A filter plate assembly (4), wherein the filter plate assembly (4) is arranged on the supporting crossbeam (1); A transmission assembly (6), wherein the transmission assembly (6) is arranged on the support assembly (3); A guide assembly (5), the guide assembly (5) being fixedly mounted on a side portion of the support assembly (3); The filter plate assembly (4) comprises a filter plate (41) arranged on the supporting crossbeam (1), and filter cloths (42) are arranged on opposite surfaces of two adjacent filter plates (41); The support assembly (3) comprises a stabilizing frame (34), on which a transmission gear (33) is movably mounted; The transmission assembly (6) comprises a limit block (62) movably sleeved on the stabilizing frame (34); a tooth plate (61) meshing with the transmission gear (33) is fixedly mounted on the side of the limit block (62); a limit plate (63) is fixedly mounted on the bottom of the tooth plate (61); a fixing rod (65) is movably sleeved on the bottom of the limit plate (63) via a docking plate (64); A clamping plate (66) for clamping the filter cloth (42) is fixedly mounted at the bottom of the fixing rod (65); The transmission assembly (6) further comprises second docking blocks (67) fixedly mounted on both ends of the fixing rod (65); first connecting blocks (45) are fixedly mounted on both sides of the filter plate (41); a transmission rod (68) is movably sleeved on the outside of the first connecting block (45); and the other end of the transmission rod (68) is movably sleeved on the outside of the second docking block (67); In an initial state, a plurality of filter plates (41) are in contact with each other to form a chamber; The guide assembly (5) comprises a fixing plate (51) fixed to the side of the stabilizing frame (34), and a guide groove (52) is formed on the fixing plate (51); The second docking block (67) moves in the guide groove (52); The tooth plate (61) moves downward along the stabilizing frame (34), the second docking block (67) moves along the guide groove (52), and causes the middle part of the filter cloth (42) to swing through the clamping plate (66).

2. The filter cake stripping mechanism for a filter press according to claim 1, characterized in that: The support assembly (3) further comprises a support frame (31) fixedly mounted on the top of the support beam (1), and a guide rack (32) is fixedly mounted on the support frame (31); The stabilizing frame (34) is sleeved on the outside of the guide rack (32) through a sliding groove (35), and the central axis of the transmission gear (33) and the middle part of the filter cloth (42) are kept vertical; The filter plate (41) is pulled apart by the plate pulling trolley (2), the transmission gear (33) moves synchronously along the guide rack (32), and the toothed plate (61) moves downward under the action of the transmission gear (33) to reduce the height of the middle of the filter cloth (42), thereby gradually increasing the distance between the two ends of the filter cloth (42).

3. The filter cake stripping mechanism for a filter press according to claim 2, characterized in that: The filter plate assembly (4) further comprises a card slot (46) provided on the side of the filter plate (41), a rubber pad (44) being arranged in the card slot (46), and a card block (47) being fixedly mounted on the other side of the filter plate (41); The card block (47) is adapted to the card slot (46); The two filter plates (41) are in contact with each other, a clamping block (47) on one filter plate (41) is clamped in a clamping groove (46) on the other filter plate (41), and the rubber pad (44) is located between the clamping block (47) and the filter plate (41).

4. The filter cake stripping mechanism for a filter press according to claim 3, characterized in that: The two filter plates (41) are in contact with each other, and both ends of the filter cloth (42) are in contact with each other to form a sealed cavity.

5. A method for stripping filter cake from a filter press, using the filter cake stripping mechanism for a filter press as claimed in claim 4, characterized in that: The following steps are involved: S1. A chamber is formed by contacting multiple groups of filter plates (41) to treat sewage. The water is discharged through a pipe, while the sludge is located in the chamber to form a mud cake. The filter plates (41) are pulled one by one by a pulling trolley (2) to move and separate along the top of the supporting beam (1). Since the two ends of the filter cloth (42) are connected to two adjacent filter plates (41), the filter cloth (42) is gradually stretched during the movement of one filter plate (41), so that the distance between the two ends of the filter cloth (42) gradually increases to form an inverted "V" shape; S2, during the separation process of pulling the filter plate (41) by the plate pulling trolley (2), the transmission gear (33) moves along the guide rack (32). Since the central axis of the transmission gear (33) and the middle part of the filter cloth (42) remain vertical, the distance between the two ends of the filter cloth (42) gradually increases during the separation process of pulling the filter plate (41), and the transmission gear (33) moves synchronously along the guide rack (32) to ensure that the filter cloth (42) is always in a flat state; S3. The tooth plate (61) moves downward under the action of the transmission gear (33). Since the second docking block (67) moves in the guide groove (52), the tooth plate (61) moves downward to push the second docking block (67) to move along the guide groove (52), and the middle part of the filter cloth (42) moves along the guide groove (52) through the clamping plate (66) and the fixing rod (65), so that the filter cloth (42) and the mud cake are separated.

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