Filter press filter plate and use method thereof

Abstract

The present invention relates to the technical field of filter plates for filter presses, and more specifically, to a filter plate for filter presses and a method for using the same, comprising a filter plate body and a drain seat, wherein water grooves are symmetrically formed on both side surfaces of the filter plate body, a water inlet hole is arranged on the filter plate body at the middle position of the water groove, a mounting slot is symmetrically arranged on the filter plate body, the drain seat is symmetrically and detachably arranged on both sides of the filter plate body, the drain seat and the mounting slot cooperate, the drain hole is arranged on the drain seat, a rubber ring is arranged in the water inlet hole, top blocks are evenly arranged in the water groove, the filter plate further comprises a locking assembly, a guide assembly and a sealing edge pressing assembly, the locking assembly is arranged between the drain seat and the filter plate body, the sealing edge pressing assembly is arranged between each drain seat and the filter plate body, and can automatically control the sealing edge pressing assembly to perform edge pressing treatment on the sealing ring on the filter membrane, thereby improving the connection stability between the filter membrane and the water groove.

Description

Technical Field

[0001] The invention relates to the technical field of filter plates for filter presses, and more specifically to a filter plate for filter presses and a method for using the same. Background Art

[0002] The washing methods of chamber filter press are divided into two types: plate-by-plate washing method and single-person washing method. Plate-by-plate washing method is: the washing liquid enters from the middle of the chamber filter plate, passes through the filter cloth and filter chamber on one side and is discharged from the other side, and flows out from all sides. The washing liquid can also be reversed to enter from one side and flow out from the other side.

[0003] The existing filter press filter plate structure is mostly one-piece, and the one-piece structure limits the function of the filter plate, resulting in a single function of the existing filter press filter plate. Among them, the installation work between the filter plate and the filter membrane is of paramount importance. Due to the simple structure of the filter plate, when the filter membrane is impacted by water flow, the sealing ring around the filter membrane and the filter plate are prone to detachment or loosening, affecting the subsequent filtering effect of the filter membrane. Summary of the invention

[0004] The object of the present invention is to provide a filter plate for a filter press to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A filter plate of a filter press, comprising a filter plate body and a drain seat, wherein water grooves are symmetrically formed on the front and back surfaces of the filter plate body, a water inlet hole is arranged on the filter plate body at the middle position of the water groove, a mounting slot is symmetrically arranged on the filter plate body, the drain seat is symmetrically and detachably arranged on both sides of the filter plate body, the drain seat and the mounting slot cooperate, the drain hole is arranged on the drain seat, a rubber ring is arranged in the water inlet hole, top blocks are evenly arranged in the water groove, a drain port connected to the water groove is arranged in the slot, and a drain seat is arranged There is a matching plug plate connected to the drain outlet, and the filter plate also includes a locking assembly, a guide assembly and a sealing edge pressing assembly. The locking assembly is arranged between the drain seat and the filter plate body, and is used to lock adjacent filter plate bodies and between the filter plate body and the drain seat. The sealing edge pressing assembly is arranged between each drain seat and the filter plate body, and is used to perform edge pressing work on the sealing ring of the filter membrane installed in the water tank. The guide assembly is arranged between the filter plate body and the drain seat, and is used to guide and assist the movement of the drain seat and adjust the position of the drain seat.

[0007] A further technical solution of the present application: the sealing edge clamping assembly includes a edge clamping plate, an edge clamping groove, a mounting seat, a resistance block and a groove, the resistance block is arranged in the mounting slot, the groove is arranged on the drain seat and is adapted to the resistance block, the mounting seat is arranged on the drain seat and is located on one side of the groove, the middle position of the edge clamping plate is hinged to the mounting seat and a torsion spring is arranged at the hinge, the filter plate body is symmetrically provided with connected edge clamping grooves, the edge clamping grooves are located on the moving path of the edge clamping plate and the shapes of the two are adapted, the resistance block is located on the moving path of one side of the edge clamping plate, and when the resistance block and the edge clamping plate meet, the edge clamping plate is controlled to rotate along its hinge and screwed into the edge clamping groove.

[0008] A further technical solution of the present application: the guide assembly includes a guide groove, a guide rod, an elastic member and a connecting column, the guide groove is arranged on the filter plate body and passes through the filter plate body, the guide rods are two in number and are symmetrically and movably arranged in the guide groove, the opposite ends of the two guide rods are connected by an elastic member, the filter plate body is symmetrically provided with through windows connected to the guide groove, the through windows are movably provided with connecting columns, and the connecting columns are connected to the guide rods.

[0009] A further technical solution of the present application: the locking assembly includes a first locking structure and a second locking structure, the first locking structure is arranged on the drain seat, and is used to lock the docking between two adjacent filter plate bodies, and the second locking structure is arranged between the filter plate body and the drain seat, and is used to adjust the distance between the drain seat and the filter plate body and control the locking between the drain seat and the filter plate body.

[0010] The present application has a further technical solution: the first locking structure includes a plug, a socket, a locking hole and a locking piece, the plug is arranged on the bottom surface of the drain seat, the socket is arranged on the top surface of the drain seat, the plug and the socket are adapted to each other, the plug and the socket are both formed with locking holes, and the locking piece is arranged on the drain seat for limiting the locking holes on the plug and the socket.

[0011] The present application has a further technical solution: the locking member includes a limit block, a screw sleeve, a threaded rod, a connecting plate and a turning handle, the limit block is movably arranged in a locking hole on the socket, the connecting plate is arranged on the drain seat, the threaded rod is movably arranged on the connecting plate, the screw sleeves are in a group and are symmetrically and movably arranged on the connecting plate, the screw sleeves are connected to the limit block, the turning handle is sleeved on the threaded rod, both ends of the threaded rod are slidably inserted in the screw sleeves and the two are threadedly matched.

[0012] The present application has a further technical solution: the second locking structure includes a gear, a rack, an operating disk, a block and a slot; the operating disk is movably arranged on the filter plate body and is located on the opposite side of the guide groove; the gear is movably arranged on the filter plate body and is coaxially connected to the operating disk; there are two racks and they are movably arranged on the filter plate body in an alternating manner relative to the gears; the rack and the gear are meshed; the block is movably arranged on the filter plate body and are elastically connected; the slot is arranged on the operating disk and is located on the moving path of the block.

[0013] A further technical solution of the present application is as follows: the filter plate also includes a lifting material structure, which is arranged on the filter plate body and connected to the connecting column. When the guide rod is displaced, the lifting material structure is controlled by the connecting column to operate and push out the installed filter membrane.

[0014] A further technical solution of the present application is as follows: the top material structure includes an air suction box, an extrusion block, a connecting air nozzle and a discharge block, each of the top blocks is formed with a mounting hole, an air cavity connected to the mounting hole is provided in the filter plate body, the discharge block is movably arranged in the mounting hole and the two are elastically connected, the air suction box is arranged on the filter plate body, the air suction box is connected to the air cavity through the connecting air nozzle, there are two extrusion blocks and they are symmetrically and movably arranged in the air suction box, and the extrusion blocks are connected to the connecting column.

[0015] A method for using the filter plate of the filter press described in the above technical solution, the specific steps of the method are as follows:

[0016] Install the filter membrane: insert the filter membrane through the water inlet on the filter plate body, and fit the sealing ring on the filter membrane to the inner wall of the water tank;

[0017] Docking the drain seat: by controlling the drain seat to move toward the position of the filter plate body until the matching plug-in plate on the drain seat is inserted into the drain port, the docking between the drain seat and the filter plate body is completed. In this process, the sealing edge pressing component can be controlled to work, and the sealing edge pressing component can perform edge pressing on the sealing ring on the filter membrane. The locking component can lock the drain seat and the filter plate body;

[0018] Docking of adjacent filter plates: Stack the filter plates of the filter press that have been docked with the drain seat and the filter membrane installed. By controlling the locking assembly to work, the adjacent filter plates of the filter press can be locked.

[0019] Compared with the prior art, the technical solution provided by the embodiment of the present invention has the following beneficial effects:

[0020] The embodiment of the present invention provides a sealing edge pressing assembly and a locking assembly, and adopts a split design of the drain seat and the filter plate body, which not only simplifies the structure of the entire filter plate of the filter press and facilitates subsequent disassembly work, but also can automatically control the sealing edge pressing assembly to press the sealing ring on the filter membrane during the docking work between the filter plate body and the drain seat, thereby improving the connection stability between the filter membrane and the water tank. At the same time, the locking assembly can also be used to lock the drain seat and the filter plate body and between adjacent filter press filter plates, thereby improving the connection stability of the entire device and facilitating subsequent disassembly and assembly of the filter membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the filter plate of the filter press in the embodiment of the present invention;

[0022] Figure 2 It is a structural schematic diagram of a filter plate body in a filter plate of a filter press according to an embodiment of the present invention;

[0023] Figure 3 A half-section view of a filter plate body in a filter plate of a filter press according to an embodiment of the present invention;

[0024] Figure 4 It is a structural schematic diagram of a pressure edge drainage assembly in a filter plate of a filter press according to an embodiment of the present invention;

[0025] Figure 5 A top view of a drain seat in a filter plate of a filter press according to an embodiment of the present invention;

[0026] Figure 6 A bottom view of a drain seat in a filter plate of a filter press according to an embodiment of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the material lifting structure in the filter plate of the filter press according to an embodiment of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the second locking structure in the filter plate of the filter press according to an embodiment of the present invention;

[0029] Fig. 9 It is a schematic structural diagram of the filter plate of the filter press of the present invention.

[0030] Explanation of the symbols in the schematic diagram:

[0031] 1-filter plate body, 2-water tank, 3-top block, 4-discharge block, 5-rubber ring, 6-drain port, 7-operating panel, 8-card block, 9-card slot, 10-contact block, 11-installation slot, 12-guide slot, 13-through window, 14-air cavity, 15-installation hole, 16-drain seat, 17-drain hole, 18-matching plug plate, 19-edge pressure plate, 20-installation seat, 21-plug, 22-locking hole, 23-groove, 24-handle, 25-connecting plate, 26-threaded rod, 27-limiting block, 28-screw sleeve, 29-socket, 30-vacuum box, 31-guide rod, 32-spring, 33-extrusion block, 34-connecting air nozzle, 35-connecting column, 36-rack, 37-gear. DETAILED DESCRIPTION

[0032] 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. The present invention is further described below in combination with the embodiments.

[0033] See also Figure 1-Figure 9 In one embodiment of the present application, a filter plate of a filter press includes a filter plate body 1 and a drain seat 16. The filter plate body 1 can also be Fig. 9 The filter plate is replaced by a filter plate body of the prior art, wherein the front and back surfaces of the filter plate body 1 are symmetrically formed with water troughs 2, the filter plate body 1 is provided with a water inlet hole in the middle of the water trough 2, the filter plate body 1 is symmetrically provided with mounting slots 11, the drain seat 16 is symmetrically and detachably provided on both sides of the filter plate body 1, the drain seat 16 and the mounting slot 11 cooperate, the drain seat 16 is provided with a drain hole 17, a rubber ring 5 is provided in the water inlet hole, the water trough 2 is evenly provided with top blocks 3, the slot is provided with a drain port 6 connected to the water trough 2, and the drain seat 16 is provided with There is a matching plug plate 18 connected to the drain port 6, and the filter plate also includes a locking assembly, a guide assembly and a sealing edge pressing assembly. The locking assembly is arranged between the drain seat 16 and the filter plate body 1, and is used to lock the adjacent filter plate bodies 1 and between the filter plate body 1 and the drain seat 16. The sealing edge pressing assembly is arranged between each drain seat 16 and the filter plate body 1, and is used to perform edge pressing work on the sealing ring of the filter membrane installed in the water tank 2. The guide assembly is arranged between the filter plate body 1 and the drain seat 16, and is used to guide and assist the movement of the drain seat 16 and adjust the position of the drain seat 16.

[0034] In a specific case of the present embodiment, the sealing edge clamping assembly includes an edge clamping plate 19, an edge clamping groove, a mounting seat 20, a resistance block 10 and a groove 23. The resistance block 10 is arranged in the mounting slot 11, and the groove 23 is arranged on the drain seat 16 and matched with the resistance block 10. The mounting seat 20 is arranged on the drain seat 16 and is located on one side of the groove 23. The middle position of the edge clamping plate 19 is hinged to the mounting seat 20 and a torsion spring is arranged at the hinge. The filter plate body 1 is symmetrically provided with the edge clamping groove connected thereto. The edge clamping groove is located on the moving path of the edge clamping plate 19 and the shapes of the two are matched. The resistance block 10 is located on the moving path of one side of the edge clamping plate 19. When the resistance block 10 and the edge clamping plate 19 meet, the edge clamping plate 19 is controlled to rotate along its hinge and screw into the edge clamping groove.

[0035] In another specific case of the present embodiment, the guide assembly includes a guide groove 12, a guide rod 31, an elastic member and a connecting column 35. The guide groove 12 is arranged on the filter plate body 1 and passes through the filter plate body 1. The guide rods 31 are two in number and are symmetrically and movably arranged in the guide groove 12. The opposite ends of the two guide rods 31 are connected by an elastic member. The filter plate body 1 is symmetrically provided with a through window 13 connected to the guide groove 12. A connecting column 35 is movably arranged in the through window 13, and the connecting column 35 is connected to the guide rod 31.

[0036] It should be noted that the elastic member can be a spring 32, a spring sheet or an elastic steel plate structure. The elastic member is preferably a spring 32, and the spring 32 is connected between the guide rods 31. As for the specific model parameters of the spring 32, the best choice can be made according to actual conditions, and they are not listed here one by one.

[0037] In actual application, the use process of the filter plate of the filter press needs to go through three steps: installing the filter membrane: passing the filter membrane through the water inlet on the filter plate body 1, and fitting the sealing ring on the filter membrane to the inner wall of the water tank 2; docking the drain seat 16: by controlling the drain seat 16 to move toward the position of the filter plate body 1, the guide rod 31 and the connecting column 35 move relative to the guide groove 12 until the matching plug plate 18 on the drain seat 16 is inserted into the drain port 6, completing the docking between the drain seat 16 and the filter plate body 1, and in this process, the drain seat 16 and the filter plate body 1 are docked. There is a conflict between the contact block 10 and the edge pressing plate 19, which drives the edge pressing plate 19 to rotate along its hinge, so that the edge pressing plate 19 is screwed into the edge pressing groove, so that the edge pressing plate 19 fits and contacts the sealing ring on the filter membrane, and the sealing ring is completed. The locking component can lock the drain seat 16 and the filter plate body 1; adjacent filter plates are docked: the filter press filter plates with the docked drain seat 16 and the filter membrane installed are stacked, and the adjacent filter press filter plates can be locked by controlling the locking component.

[0038] See also Figure 1-Figure 8As another preferred embodiment of the present application, the locking assembly includes a first locking structure and a second locking structure. The first locking structure is arranged on the drain seat 16 and is used to lock the connection between two adjacent filter plate bodies 1. The second locking structure is arranged between the filter plate body 1 and the drain seat 16 and is used to adjust the distance between the drain seat 16 and the filter plate body 1 and control the locking between the drain seat 16 and the filter plate body 1.

[0039] In a specific case of the present embodiment, the first locking structure includes a plug 21, a socket 29, a locking hole 22 and a locking member, the plug 21 is arranged on the bottom surface of the drain seat 16, the socket 29 is arranged on the top surface of the drain seat 16, the plug 21 and the socket 29 are adapted to each other, the plug 21 and the socket 29 are both formed with locking holes 22, and the locking member is arranged on the drain seat 16, for limiting the locking holes 22 on the plug 21 and the socket 29.

[0040] It should be supplemented that the locking member includes a limit block 27, a screw sleeve 28, a threaded rod 26, a connecting plate 25 and a turning handle 24. The limit block 27 is movably arranged in the locking hole 22 on the socket 29, the connecting plate 25 is arranged on the drain seat 16, the threaded rod 26 is movably arranged on the connecting plate 25, the screw sleeve 28 is in a group and is symmetrically and movably arranged on the connecting plate 25, the screw sleeve 28 is connected to the limit block 27, the turning handle 24 is sleeved on the threaded rod 26, and the two ends of the threaded rod 26 are slidably inserted in the screw sleeve 28 and the two are threadedly matched.

[0041] In another specific case of the present embodiment, the second locking structure includes a gear 37, a rack 36, an operating disk 7, a block 8 and a slot 9. The operating disk 7 is movably arranged on the filter plate body 1 and is located on the opposite side of the guide groove 12. The gear 37 is movably arranged on the filter plate body 1 and is coaxially connected to the operating disk 7. There are two racks 36 and they are movably arranged on the filter plate body 1 in an alternating manner relative to the gear 37. The rack 36 and the gear 37 are meshed with each other. The block 8 is movably arranged on the filter plate body 1 and the two are elastically connected. The slot 9 is arranged on the operating disk 7 and is located on the moving path of the block 8.

[0042] When the filter membrane and the water tank 2 are connected and connected, the gear 37 can be driven to rotate by controlling the rotation of the operating disk 7. Under the meshing action between the gear 37 and the rack 36, the rack 36 can be driven to move relative to the gear 37, thereby driving the guide rod 31 and the drain seat 16 to move, thereby controlling the docking of the drain seat 16 and the filter plate body 1. By inserting the clamping block 8 into the clamping groove 9, the connection between the drain seat 16 and the filter plate body 1 is locked. When the filter plates of the filter press are stacked and assembled, the plug 21 of the filter plate of the upper filter press is connected with the socket 29 of the filter plate of the lower filter press, and then the handle 24 is rotated to drive the threaded rod 26 to rotate. Under the threaded cooperation between the threaded rod 26 and the screw sleeve 28, the screw sleeve 28 and the limit block 27 are driven to move, so that the limit block 27 on the socket 29 is inserted into the locking hole 22 of the plug 21, thereby completing the locking and fixing of the two adjacent filter press filter plates.

[0043] See also Figure 1-Figure 8 As another preferred embodiment of the present application, the filter plate also includes a lifting material structure, which is arranged on the filter plate body 1 and connected to the connecting column 35. When the guide rod 31 is displaced, the lifting material structure is controlled by the connecting column 35 to push out the installed filter membrane.

[0044] In the exemplary embodiment, the top material structure includes an air suction box 30, an extrusion block 33, a connecting air nozzle 34 and a discharge block 4, each of the top blocks 3 is formed with a mounting hole 15, and the filter plate body 1 is provided with an air cavity 14 connected to the mounting hole 15, the discharge block 4 is movably arranged in the mounting hole 15 and the two are elastically connected, the air suction box 30 is arranged on the filter plate body 1, the air suction box 30 is connected to the air cavity 14 through the connecting air nozzle 34, the number of the extrusion blocks 33 is two and they are symmetrically and movably arranged in the air suction box 30, and the extrusion blocks 33 are connected to the connecting column 35.

[0045] When the drain seat 16 moves toward the filter plate body 1 for docking, the guide rod 31 and the connecting column 35 can be controlled to move. When the connecting column 35 moves, the extrusion block 33 can be driven to move synchronously. The extrusion block 33 can draw out the air in the air cavity 14 along the vacuum box 30, thereby driving the discharge block 4 popped out from the top block 3 to enter the top block 3. Conversely, when the drain seat 16 is controlled to expand relative to the filter plate body 1, the discharge block 4 can be made to pop out relative to the top block 3 and contact the filter membrane, pushing the filter membrane out of the water tank 2, thereby assisting the removal of the filter membrane and shortening the removal time of the filter membrane.

[0046] See also Figure 1-Figure 8 In another embodiment of the present application, a method for using the filter plate of the filter press described in the above embodiment is provided, and the specific steps of the method are as follows:

[0047] Install the filter membrane: insert the filter membrane through the water inlet on the filter plate body 1, and fit the sealing ring on the filter membrane to the inner wall of the water tank 2;

[0048] Docking the drain seat 16: by controlling the drain seat 16 to move toward the position of the filter plate body 1, until the matching plug plate 18 on the drain seat 16 is inserted into the drain port 6, the docking between the drain seat 16 and the filter plate body 1 is completed, and in this process, the sealing edge pressing component can be controlled to work, the sealing edge pressing component can perform edge pressing processing on the sealing ring on the filter membrane, and the drain seat 16 and the filter plate body 1 can be locked by the locking component;

[0049] Adjacent filter plates are docked: the filter plates of the filter press which have been docked with the drain seat 16 and the filter membrane installed are stacked, and the adjacent filter plates of the filter press can be locked by controlling the locking assembly to work.

[0050] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

[0051] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A filter plate of a filter press, comprising a filter plate body and a drain seat, wherein water grooves are symmetrically formed on the front and back surfaces of the filter plate body, a water inlet hole is arranged on the filter plate body at the middle position of the water groove, a mounting slot is symmetrically arranged on the filter plate body, the drain seat is symmetrically and detachably arranged on both sides of the filter plate body, the drain seat and the mounting slot are matched, a drain hole is arranged on the drain seat, a rubber ring is arranged in the water inlet hole, and top blocks are evenly arranged in the water groove, characterized in that: A drain outlet connected to the sink is provided in the slot, a matching plug plate connected to the drain outlet is provided on the drain seat, the filter plate also includes a locking assembly, a guide assembly and a sealing edge pressing assembly, the locking assembly is provided between the drain seat and the filter plate body, and is used to lock adjacent filter plate bodies and between the filter plate body and the drain seat, the sealing edge pressing assembly is provided between each drain seat and the filter plate body, and is used to perform edge pressing work on the sealing ring of the filter membrane installed in the sink, and the guide assembly is provided between the filter plate body and the drain seat, and is used to provide guiding assistance for the movement of the drain seat and adjust the position of the drain seat.

2. The filter plate of the filter press according to claim 1, characterized in that: The sealing edge pressing assembly includes an edge pressing plate, an edge pressing groove, a mounting seat, a resistance block and a groove, the resistance block is arranged in the mounting slot, the groove is arranged on the drain seat and is matched with the resistance block, the mounting seat is arranged on the drain seat and is located on one side of the groove, the middle position of the edge pressing plate is hinged to the mounting seat and a torsion spring is arranged at the hinge, the filter plate body is symmetrically provided with connected edge pressing grooves, the edge pressing grooves are located on the moving path of the edge pressing plate and the shapes of the two are matched, the resistance block is located on the moving path of one side of the edge pressing plate, and when the resistance block and the edge pressing plate meet, the edge pressing plate is controlled to rotate along its hinge and screwed into the edge pressing groove.

3. The filter plate of the filter press according to claim 1, characterized in that: The guide assembly includes a guide groove, a guide rod, an elastic member and a connecting column. The guide groove is arranged on the filter plate body and passes through the filter plate body. There are two guide rods and they are symmetrically and movably arranged in the guide groove. The opposite ends of the two guide rods are connected by an elastic member. The filter plate body is symmetrically provided with through windows connected to the guide groove. A connecting column is movably arranged in the through window, and the connecting column is connected to the guide rod.

4. The filter plate of the filter press according to claim 1, characterized in that: The locking assembly includes a first locking structure and a second locking structure. The first locking structure is arranged on the drain seat and is used to lock the connection between two adjacent filter plate bodies. The second locking structure is arranged between the filter plate body and the drain seat and is used to adjust the distance between the drain seat and the filter plate body and control the locking between the drain seat and the filter plate body.

5. The filter plate of the filter press according to claim 4, characterized in that: The first locking structure includes a plug, a socket, a locking hole and a locking piece. The plug is arranged on the bottom surface of the drain seat, and the socket is arranged on the top surface of the drain seat. The plug and the socket are adapted to each other. The plug and the socket are both formed with locking holes. The locking piece is arranged on the drain seat and is used to limit the locking holes on the plug and the socket.

6. The filter plate of the filter press according to claim 5, characterized in that: The locking member includes a limit block, a screw sleeve, a threaded rod, a connecting plate and a turning handle. The limit block is movably arranged in a locking hole on the socket, the connecting plate is arranged on the drain seat, the threaded rod is movably arranged on the connecting plate, the screw sleeves are in a group and are symmetrically and movably arranged on the connecting plate, the screw sleeves are connected to the limit block, the turning handle is sleeved on the threaded rod, and both ends of the threaded rod are slidably inserted in the screw sleeves and the two are threadedly matched.

7. The filter plate of the filter press according to claim 6, characterized in that: The second locking structure includes a gear, a rack, an operating disk, a block and a slot. The operating disk is movably arranged on the filter plate body and is located on the opposite side of the guide groove. The gear is movably arranged on the filter plate body and is coaxially connected with the operating disk. There are two racks and they are movably arranged on the filter plate body in an alternating manner relative to the gears. The rack and the gear are meshed. The block is movably arranged on the filter plate body and the two are elastically connected. The slot is arranged on the operating disk and is located on the moving path of the block.

8. The filter plate of the filter press according to claim 3, characterized in that: The filter plate further comprises a lifting material structure, which is arranged on the filter plate body and connected to the connecting column. When the guide rod is displaced, the lifting material structure is controlled by the connecting column to work and the installed filter membrane is pushed out.

9. The filter plate of the filter press according to claim 8, characterized in that: The top material structure includes an air suction box, an extrusion block, a connecting air nozzle and a discharge block. A mounting hole is formed on each of the top blocks. An air cavity connected to the mounting hole is provided in the filter plate body. The discharge block is movably arranged in the mounting hole and the two are elastically connected. The air suction box is arranged on the filter plate body. The air suction box is connected to the air cavity through the connecting air nozzle. There are two extrusion blocks, which are symmetrically and movably arranged in the air suction box. The extrusion blocks are connected to the connecting column.

10. A method for using the filter plate of the filter press according to claim 1, characterized in that: The specific steps of the method of use are as follows: Install the filter membrane: insert the filter membrane through the water inlet on the filter plate body, and fit the sealing ring on the filter membrane to the inner wall of the water tank; Docking the drain seat: by controlling the drain seat to move toward the position of the filter plate body until the matching plug-in plate on the drain seat is inserted into the drain port, the docking between the drain seat and the filter plate body is completed. In this process, the sealing edge pressing component can be controlled to work, and the sealing edge pressing component can perform edge pressing on the sealing ring on the filter membrane. The locking component can lock the drain seat and the filter plate body; Docking of adjacent filter plates: Stack the filter plates of the filter press that have been docked with the drain seat and the filter membrane installed. By controlling the locking assembly to work, the adjacent filter plates of the filter press can be locked.

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