Filter cake cleaning system and filtering device for flat filter material

Abstract

The present invention belongs to the technical field of filter presses, and discloses a filter cake cleaning system and a filtering device for flat filter materials, comprising a clamping assembly, a filter plate assembly, a supporting assembly, a push plate slider, a sensor assembly and a control assembly; the clamping assembly squeezes and tightens or loosens a plurality of filter plate assemblies against each other, and the push plate slider is connected to the filter plate assembly through the supporting assembly to separate or tilt adjacent filter plate assemblies to each other and thereby shake off the filter cake; the above scheme moves the vehicle body to the bottom of the supporting assembly so that the bottom of the bracket is between the two push plate bodies, at which time the filter plate 1 and the filter plate 2 will rotate synchronously and oppositely with the bottom hinge as the axis, and the tension spring will be stretched, and when the bottom end of the side rod passes over the convex column, the filter plate 1 and the filter plate 2 will be closed again and vibrate under the action of the tension of the tension spring, thereby solving the problem of low efficiency when manually removing the filter cake on the filter plate.

Description

Technical Field

[0001] The invention belongs to the technical field of filter presses, and in particular relates to a filter cake cleaning system and a filtering device for a flat filter material. Background Art

[0002] Flat filter material is an important solid-liquid separation component used in filter presses. By setting a number of filter materials and setting a depression on the filter plate of the filter material, a filter chamber is formed between two adjacent filter materials. The filter chamber is sealed by applying pressure to the filter plate through the pressing component. Under the action of pressure, the liquid in the mixed liquid is squeezed out of the filter chamber through the gap on the filter cloth, while the solid particles are trapped on the filter cloth and form a filter cake in the filter chamber. When cleaning the filter cake, the pressing component is closed and the push plate on the push plate slider is used to move a single filter material. At this time, the filter cake between two adjacent filter plates will fall due to the separation between the filter materials. In actual use, part of the filter cake will also adhere to the filter cloth and be supported by the depression on the filter plate and cannot fall. At this time, it is necessary to manually use a shovel plate to shovel the filter cake on the filter cloth. At the same time, due to the presence of the depression on the filter plate, it is more time-consuming and labor-intensive to manually shovel the filter cake, thereby reducing the cleaning efficiency of the filter material. Therefore, in order to solve the above problems, a filter cake cleaning system and a filtering device for flat filter material are proposed. Summary of the invention

[0003] In order to solve the problems raised in the above background technology, the present invention provides a filter cake cleaning system and a filtering device for a flat filter material, which solves the problem of low efficiency when manually removing the filter cake on the filter plate.

[0004] To achieve the above object, the present invention provides the following technical solutions: a filter cake filtering device for a flat filter material, comprising a filter cake cleaning system, a pressing assembly, a filter plate assembly, a support assembly, a push plate slider, a sensor assembly and a control assembly;

[0005] The pressing assembly squeezes and tightens or loosens a plurality of filter plate assemblies against each other, and the push plate slider is connected to the filter plate assembly through the supporting assembly to separate or tilt adjacent filter plate assemblies against each other to shake off the filter cakes.

[0006] The sensor assembly is a pressure sensor and is arranged on both sides of the filter plate assembly to detect the pressure of the internal cavity between two adjacent filter plate assemblies and send the data to the control assembly;

[0007] A control component, which is a PLC logic controller, is used to drive a push plate slider according to the filter cake pressure between two adjacent filter plate assemblies;

[0008] The filtering device further comprises a support frame, on which a first slide rail and a second slide rail are symmetrically fixed, the support assembly is symmetrically arranged on both sides of the filter plate assembly and movably connected to the first slide rail; the push plate slider is arranged on the second slide rail;

[0009] The filter plate assembly comprises a filter plate 1, a filter plate 2 and a filter cloth, wherein the filter plate 1 is hinged to the bottom of the filter plate 2, and the filter cloth is installed on the opposite sides of the filter plate 1 and the filter plate 2 respectively;

[0010] The filter plate 1 and the filter plate 2 are both symmetrically fixed with protruding columns, and a tension spring is also fixed between the filter plate 1 and the filter plate 2;

[0011] The support assembly includes a bracket movably connected to the slide rail 1, the bracket is hinged with a frame body 1 and the hinge is a rotating shaft, one side of the frame body 1 is attached to the frame body 2, the bracket is symmetrically fixed with a T-shaped rod, and the T-shaped rod is fixed with a protruding column that can slide inside the frame body 2;

[0012] The top of the frame body 1 is symmetrically hinged with connecting rods, and the two connecting rods are movably sleeved on the outside of the protruding columns on the filter plate 1 and the filter plate 2 respectively;

[0013] A top rod is fixedly connected to the top of the frame body 2, and a side rod is symmetrically hinged on the top of the top rod for squeezing the convex column when the top rod moves upward;

[0014] The push plate slider comprises a car body movably connected to the slide rail 2, the car body is symmetrically hinged with a push plate body for driving the bracket to move, and the car body is also symmetrically fixed with a hydraulic top plate for pushing the bracket 2 upward;

[0015] Wherein, the bottoms of the two connecting rods are provided with teeth, and the bottoms of the two connecting rods are meshed with each other.

[0016] Preferably, a slot is provided at the bottom of the second frame; and a column that can be inserted into the slot is fixedly connected to the top of the hydraulic top plate.

[0017] Preferably, a limiting groove 1 is provided on the frame body 1, and a convex shaft 1 capable of sliding in the limiting groove 1 is fixedly connected to the frame body 2;

[0018] When one end of the convex shaft 1 slides to the top end of the limiting groove 1, it is coaxial with the rotating shaft;

[0019] The T-shaped rod body part and the rotating shaft are at the same height plane.

[0020] Preferably, the frame body 1 is further provided with a second limiting groove and an arc-shaped groove, the top and bottom ends of the second limiting groove are respectively connected with the arc-shaped groove and the first limiting groove, and the width of the first limiting groove is greater than the width of the second limiting groove;

[0021] The second frame body is fixedly connected with a second convex shaft which can slide in the second limiting groove and the arc groove respectively. In an initial state, the second convex shaft is located in the second limiting groove.

[0022] The diameter of the first convex shaft is greater than the diameter of the second convex shaft.

[0023] Preferably, a bottom of the frame is elastically connected to an elastic card block, and in an initial state, the elastic card block has a tendency to move toward the card slot due to its own tension;

[0024] In the initial state, the elastic block is inserted into the bottom of the bracket toward one end of the bracket, and the other end of the elastic block is in contact with two side surfaces of the bracket.

[0025] Preferably, the elastic block has an end away from the bracket and has an inclined surface, and when the frame body 2 moves downward, it can squeeze the inclined surface of the elastic block and make the other end of the block be stuck into the bottom of the bracket.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The above scheme moves the vehicle body to the bottom of the support assembly so that the bottom of the bracket is between the two push plate bodies, and the hydraulic top plate is operated to push the frame body 2 to drive the top rod and the side rod upward, so that the two side rods move upward to squeeze the convex columns on the filter plate 1 and the filter plate 2 respectively, thereby forcing the two convex columns to move backwards. At the same time, due to the engagement of the bottom of the connecting rod, the filter plate 1 and the filter plate 2 will rotate synchronously and backwards with the bottom hinge as the axis, and the tension spring will be stretched. When the bottom end of the side rod passes over the convex column, the filter plate 1 and the filter plate 2 will be closed again and vibrate under the action of the tension of the tension spring, thereby solving the problem of low efficiency when manually removing the filter cake on the filter plate;

[0028] In the above scheme, the bottom end of the side rod passes over the convex column, and the convex shaft 2 moves from the limiting groove 2 to the arc groove. At the same time, the convex shaft 1 moves up to the top of the limiting groove 1. At this time, the rotating shaft and the convex shaft are coaxial. Then, when the vehicle body is moved and the bracket is driven to move through the push plate body, the filter plate assembly is also driven to move through the connecting rod and the convex column. During the movement, the filter plate assembly as a whole will shake with the rotating shaft as the axis to ensure that the filter cakes on the filter plates 1 and 2 can fall off quickly.

[0029] The above scheme allows the frame two to remain stable in the vertical direction by the shaking of the filter plate assembly. Since the side rods are located above the convex columns, when filter plates one and two rotate, the side surfaces of the top rods will intermittently collide with the convex columns on both sides and engage with the bottom end of the connecting rod, so that filter plates one and two can be opened intermittently during the movement, thereby further improving the cleaning effect of the filter cake on the filter plate assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0032] Figure 3 for Figure 1 The enlarged view of point B in the middle;

[0033] Figure 4 It is a structural schematic diagram of the filter plate assembly of the present invention;

[0034] Figure 5 It is a schematic diagram of the side cross-sectional structure of the bracket of the present invention;

[0035] Figure 6 for Figure 5 Enlarged view of point C in the middle;

[0036] Figure 7 It is a schematic diagram of the split structure of the support assembly of the present invention;

[0037] Figure 8 It is a structural schematic diagram of the push plate slider of the present invention.

[0038] In the figure: 1. support frame; 11. clamping assembly; 12. slide rail 1; 13. slide rail 2; 2. filter plate assembly; 21. filter plate 1; 22. filter plate 2; 23. filter cloth; 3. support assembly; 31. bracket; 311. T-bar; 312. raised column; 32. frame 1; 321. rotating shaft; 322. connecting rod; 323. limiting groove 1; 324. limiting groove 2; 325. arc groove; 326. elastic block; 33. frame 2; 331. slot; 332. push rod; 333. side rod; 334. convex shaft 1; 335. convex shaft 2; 4. push plate slider; 41. car body; 42. push plate body; 43. hydraulic push plate; 431. column; 5. convex column; 6. tension spring. DETAILED DESCRIPTION

[0039] 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.

[0040] like Figures 1 to 8 As shown, the present invention provides a filter cake filtering device for a flat filter material, comprising a filter cake cleaning system, a pressing assembly 11, a filter plate assembly 2, a support assembly 3, a push plate slider 4, a sensor assembly and a control assembly;

[0041] The pressing assembly 11 squeezes and tightens or loosens a plurality of filter plate assemblies against each other, and the push plate slider 4 is connected to the filter plate assembly 2 through the supporting assembly 3 to separate or tilt adjacent filter plate assemblies 2 to shake off the filter cakes.

[0042] A sensor assembly, which is a pressure sensor and is arranged on both sides of the filter plate assembly to detect the pressure of the internal cavity between two adjacent filter plate assemblies and send the data to the control assembly;

[0043] The control component is a PLC logic controller used to drive the push plate slider 4 according to the filter cake pressure between two adjacent filter plate assemblies 2.

[0044] The filtering device comprises a support frame 1, on which a slide rail 12 and a slide rail 2 13 are symmetrically fixed, and a support assembly 3 is symmetrically arranged on both sides of the filter plate assembly 2 and movably connected to the slide rail 12;

[0045] The push plate slider 4 is arranged on the slide rail 13; the filter plate assembly 2 includes a filter plate 1 21, a filter plate 22 and a filter cloth 23, the filter plate 1 21 is hinged at the bottom of the filter plate 22, and the filter cloth 23 is respectively installed on the opposite sides of the filter plate 1 21 and the filter plate 22;

[0046] The filter plate 1 21 and the filter plate 2 22 are both symmetrically fixed with protruding columns 5, and a tension spring 6 is also fixed between the filter plate 1 21 and the filter plate 22;

[0047] The support assembly 3 includes a bracket 31 movably connected to the slide rail 12, a frame body 1 32 is hinged on the bracket 31, and the hinge is a rotating shaft 321, a frame body 2 33 is attached to one side of the frame body 1 32, a T-shaped rod 311 is symmetrically fixed on the bracket 31, and a protruding column 312 that can slide inside the frame body 2 33 is fixed on the T-shaped rod 311;

[0048] The top of the frame 1 32 is symmetrically hinged with connecting rods 322, and the two connecting rods 322 are movably sleeved on the outside of the protruding columns 5 on the filter plate 1 21 and the filter plate 2 22;

[0049] A top rod 332 is fixedly connected to the top of the frame body 33, and a side rod 333 is symmetrically hinged on the top of the top rod 332 for squeezing the protruding column 5 when the top rod 332 moves upward;

[0050] The push plate slider 4 includes a car body 41 movably connected to the slide rail 13, and a push plate body 42 for driving the bracket 31 to move is symmetrically hinged on the car body 41. A hydraulic top plate 43 for pushing the bracket 33 upward is also fixed on the car body 41.

[0051] By adopting the above scheme, the vehicle body 41 is moved to the bottom of the support assembly 3 so that the bottom of the bracket 31 is between the two push plate bodies 42, and the hydraulic top plate 43 is operated to push the frame body 2 33 to drive the top rod 332 and the side rod 333 upward, so that the two side rods 333 move upward to squeeze the protruding columns 5 on the filter plate 1 21 and the filter plate 2 22 respectively, thereby forcing the two protruding columns 5 to move back to back and rotate back to back with the bottom hinge as the axis. At the same time, the tension spring 6 is stretched. When the bottom end of the side rod 333 passes over the protruding column 5, the filter plate 1 21 and the filter plate 2 22 will be closed again and vibrate under the action of the tension of the tension spring 6, thereby solving the problem of low efficiency when manually removing the filter cake on the filter plate.

[0052] like Figure 2 and Figure 5-Figure 7 As shown, teeth are provided at the bottom of the two connecting rods 322, and the bottoms of the two connecting rods 322 are meshed with each other;

[0053] A slot 331 is formed at the bottom of the frame 33; a column 431 which can be inserted into the slot 331 is fixedly connected to the top of the hydraulic top plate 43;

[0054] By adopting the above scheme, through the bottom engagement of the connecting rod 322, when the two side rods 333 move upward to squeeze the protrusions 5 on the filter plate 1 21 and the filter plate 2 22 respectively, thereby forcing the two protrusions 5 to move in opposite directions, at this time, due to the bottom engagement of the two connecting rods 322, it is ensured that the filter plate 1 21 and the filter plate 2 22 will rotate synchronously and in opposite directions with the bottom hinge as the axis;

[0055] It is worth noting that, by driving the column 431 to be stuck in the slot 331 during the movement of the vehicle body 41, it is ensured that the hydraulic top plate 43 can not only push up the frame body 33, but also drive the frame body 33 downward, thereby facilitating the subsequent resetting of the frame body 33.

[0056] like Figure 2 and Figure 5-Figure 7 As shown, a limiting groove 323 is provided on the frame 1 32, and a convex shaft 334 which can slide in the limiting groove 323 is fixedly connected to the frame 2 33;

[0057] When one end of the convex shaft 334 slides to the top of the limiting groove 323, it is coaxial with the rotating shaft 321; the body of the T-shaped rod 311 and the rotating shaft 321 are at the same height plane;

[0058] The frame body 1 32 is also provided with a second limiting groove 324 and an arc groove 325. The top and bottom ends of the second limiting groove 324 are respectively connected with the arc groove 325 and the first limiting groove 323. The width of the first limiting groove 323 is greater than that of the second limiting groove 324.

[0059] The second frame body 33 is fixedly connected with a second convex shaft 335 which can slide in the second limiting groove 324 and the arc groove 325 respectively. In the initial state, the second convex shaft 335 is located in the second limiting groove 324.

[0060] The diameter of the first protruding shaft 334 is greater than the diameter of the second protruding shaft 335 .

[0061] With the above solution, the frame body 2 33 is limited by the protruding column 312 and the frame body 1 32 and is in contact with the side wall of the frame body 1 32 to maintain a vertical state. At this time, the protruding shaft 2 335 and the protruding shaft 1 334 are respectively in the limiting groove 1 323 and the limiting groove 2 324, which will limit the circumferential position of the frame body 1 32, thereby maintaining the stability of the support assembly 3 as a whole and the filter plate assembly 2 when moving;

[0062] The bottom end of the side rod 333 passes over the protruding column 5, and the protruding shaft 2 335 will move from the limiting groove 2 324 to the arc groove 325, and the protruding shaft 1 334 will move up to the top of the limiting groove 1 323. At this time, the rotating shaft 321 is coaxial with the protruding shaft 1 334. At this time, the frame 1 32 can rotate with the rotating shaft 321 as the axis. Then, when the vehicle body 41 is moved and the bracket 31 is driven to move by the push plate body 42, the filter plate assembly 2 will be driven to move through the connecting rod 322 and the protruding column 5. During the movement, the filter plate assembly 2 as a whole will shake with the rotating shaft 321 as the axis to ensure that the filter cakes on the filter plates 1 21 and 22 can fall off quickly.

[0063] Since the rod body of the T-shaped rod 311 and the rotating shaft 321 are at the same height plane, the situation that the frame 1 32 is blocked by the T-shaped rod 311 and cannot rotate when rotating is avoided.

[0064] like Figure 5-Figure 7 As shown, the bottom of the frame 1 32 is elastically connected with an elastic block 326, and in the initial state, the elastic block 326 has a tendency to move toward the card slot 331 due to its own tension;

[0065] In the initial state, the elastic block 326 is inserted into the bottom of the bracket 31 toward one end of the bracket 31, and the other end of the elastic block 326 abuts against the side surface of the second frame body 33;

[0066] The end of the elastic block 326 away from the bracket 31 is an inclined surface, and when the frame 33 moves downward, the inclined surface of the elastic block 326 can be squeezed to make the other end of the elastic block 326 be stuck into the bottom of the bracket 31;

[0067] By adopting the above scheme, when the frame body 2 33 moves upward, it contacts the elastic block 326, and at this time, the elastic block 326 is reset by its own tension and detaches from the bracket 31, so as to ensure that when the subsequent vehicle body 41 drives the bracket 31 to move through the push plate body 42, the frame body 1 32 can drive the filter plate assembly 2 as a whole to shake around the rotating shaft 321 as the axis through the connecting rod 322 and the protruding column 5;

[0068] When the frame 33 is reset, the frame 33 moves downward to squeeze the inclined surface of the elastic block 326, thereby forcing one end of the elastic block 326 to be stuck in the bottom of the bracket 31, so as to ensure the stability of the frame 32 and the bracket 31 and the filter plate assembly 2 when the subsequent clamping assembly 11 pushes the filter plate assembly 2 to be clamped, thereby avoiding shaking of the filter plate assembly 2.

[0069] The working principle and use process of the present invention:

[0070] The filter plate assembly 2 detects the pressure of the internal cavity between two adjacent filter plate assemblies 2 through the sensor assembly, and sends the data to the control assembly;

[0071] The control component controls the pressing component 11 to release the pressing of the filter plate component 2;

[0072] The control component controls the push plate slider 4 to move to separate and move the single filter plate assembly 2, and drives the support component 3 through the push plate slider 4 to tilt and vibrate the filter plate assembly 2 to reduce the adhesion between the filter cake and the filter plate assembly 2.

[0073] When cleaning the filter cake, the operating vehicle body 41 moves to the bottom of the support assembly 3, so that the bottom of the bracket 31 is between the two push plate bodies 42. During the movement of the vehicle body 41, the column 431 will also be stuck in the slot 331, and the hydraulic top plate 43 is operated to push the frame body 23 to drive the top rod 332 and the side rod 333 upward, so that the two side rods 333 move upward to squeeze the protruding columns 5 on the filter plate 1 21 and the filter plate 22 respectively, thereby forcing the two protruding columns 5 to move backwards. At the same time, due to the engagement of the bottom of the connecting rod 322, the filter plate 1 21 and the filter plate 22 will rotate backwards with the bottom hinge as the axis, and the tension spring 6 will be stretched. When the bottom end of the side rod 333 passes over the protruding column 5, the filter plate 1 21 and the filter plate 22 will be closed again and vibrate under the tension of the tension spring 6, thereby facilitating the cleaning of the filter cake on the filter plate assembly 2;

[0074] When the bottom end of the side rod 333 passes over the protruding column 5 and moves above it, the protruding shaft 2 335 will move from the limiting groove 2 324 to the arc groove 325, and the protruding shaft 1 334 will move up to the top of the limiting groove 1 323. At this time, the rotating shaft 321 is coaxial with the protruding shaft 1 334. When the vehicle body 41 is moved and the bracket 31 is driven to move by the push plate body 42, the filter plate assembly 2 will also be driven to move through the connecting rod 322 and the protruding column 5. During the movement, the filter plate assembly 2 will shake as a whole with the rotating shaft 321 as the axis to ensure that the filter cakes on the filter plates 1 21 and 22 can fall off quickly.

[0075] When the filter plate assembly 2 shakes, the frame body 2 33 will be limited by the protruding column 312 and the column 431 and remain stable in the vertical direction. At this time, since the side rod 333 is located above the protruding column 5, when the filter plate 1 21 and the filter plate 22 rotate, the side of the top rod 332 will intermittently collide with the protruding columns 5 on both sides, and under the engagement of the bottom end of the connecting rod 322, the filter plate 1 21 and the filter plate 22 can be intermittently opened during the movement, further improving the cleaning effect of the filter cake on the filter plate assembly 2;

[0076] When it moves to the specified position, the hydraulic top plate 43 is operated and the frame body 33 is moved downward through the column 431. At this time, the convex shaft 335 will first move from the arc groove 325 to the limit groove 324, and then the side rod 333 will rotate and tilt upward, and the top rod 332 will continue to move downward and drive the side rod 333 to squeeze and pass over the convex column 5 again and then reset. At this time, the filter plate 1 21 and the filter plate 22 will experience opposite tilting and vibration again, and the remaining filter cake residue on the filter plate 1 21 and the filter plate 22 will be shaken off again.

[0077] 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.

[0078] 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 filtering device for a flat filter material, comprising a filter cake cleaning system, wherein the filter cake cleaning system comprises a pressing assembly (11), a filter plate assembly (2), a support assembly (3), a push plate slider (4), a sensor assembly and a control assembly; The pressing assembly (11) squeezes a plurality of filter plate assemblies (2) to tighten or loosen them against each other, and the push plate slider (4) is connected to the filter plate assemblies (2) via the supporting assembly (3) to separate adjacent filter plate assemblies (2) or tilt them against each other so as to shake off the filter cakes; The sensor assembly is a pressure sensor and is arranged on two sides of the filter plate assembly (2) for detecting the pressure of the internal cavity between two adjacent filter plate assemblies (2) and sending the data to the control assembly; The control component is a PLC logic controller used to drive the push plate slider (4) according to the filter cake pressure between two adjacent filter plate assemblies (2), characterized in that: The filtering device further comprises a support frame (1), to which a first slide rail (12) and a second slide rail (13) are symmetrically fixedly connected, and the support assembly (3) is symmetrically arranged on both sides of the filter plate assembly (2) and movably connected to the first slide rail (12); The push plate slider (4) is arranged on the second slide rail (13); The filter plate assembly (2) comprises a filter plate 1 (21), a filter plate 2 (22) and a filter cloth (23); the filter plate 1 (21) is hingedly connected to the bottom of the filter plate 2 (22); and the filter cloth (23) is respectively installed on the opposite sides of the filter plate 1 (21) and the filter plate 2 (22); The filter plate 1 (21) and the filter plate 2 (22) are both symmetrically fixed with protruding columns (5), and a tension spring (6) is also fixed between the filter plate 1 (21) and the filter plate 2 (22); The support assembly (3) comprises a bracket (31) movably connected to a slide rail (12); a frame body (32) is hingedly connected to the bracket (31) and a hinged portion is a rotating shaft (321); a frame body (33) is attached to one side of the frame body (32); a T-shaped rod (311) is symmetrically fixedly connected to the bracket (31); and a protruding column (312) that can slide inside the frame body (33) is fixedly connected to the T-shaped rod (311); The top of the frame body 1 (32) is symmetrically hinged with connecting rods (322), and the two connecting rods (322) are movably sleeved on the outside of the upper protrusions (5) of the filter plate 1 (21) and the filter plate 2 (22), respectively; A top rod (332) is fixedly connected to the top of the second frame body (33), and a side rod (333) is symmetrically hinged on the top of the top rod (332) for squeezing the protruding column (5) when the top rod (332) moves upward; The push plate slider (4) comprises a vehicle body (41) movably connected to the second slide rail (13), a push plate body (42) for driving the bracket (31) to move is symmetrically hinged on the vehicle body (41), and a hydraulic top plate (43) for pushing the second bracket (33) upward is also symmetrically fixed on the vehicle body (41); The bottoms of the two connecting rods (322) are provided with teeth, and the bottoms of the two connecting rods (322) are meshed with each other; The frame body 1 (32) is provided with a limiting groove 1 (323), and the frame body 2 (33) is fixedly connected with a convex shaft 1 (334) which can slide in the limiting groove 1 (323); When one end of the convex shaft 1 (334) slides to the top end of the limiting groove 1 (323), it becomes coaxial with the rotating shaft (321); The body portion of the T-shaped rod (311) and the rotating shaft (321) are located at the same height plane.

2. The filter cake filtering device of the flat filter material according to claim 1, characterized in that: A slot (331) is provided at the bottom of the second frame (33); A column (431) capable of being inserted into the slot (331) is fixedly connected to the top of the hydraulic top plate (43).

3. The filter cake filtering device of the flat filter material according to claim 2, characterized in that: The frame body 1 (32) is also provided with a second limiting groove (324) and an arc-shaped groove (325), the top and bottom ends of the second limiting groove (324) are respectively connected to the arc-shaped groove (325) and the first limiting groove (323), and the width of the first limiting groove (323) is greater than the width of the second limiting groove (324); The second frame body (33) is fixedly connected with a second convex shaft (335) which can slide in the second limiting groove (324) and the arc groove (325) respectively. In the initial state, the second convex shaft (335) is located in the second limiting groove (324); The diameter of the protruding shaft 1 (334) is greater than the diameter of the protruding shaft 2 (335).

4. The filter cake filtering device of the flat filter material according to claim 3, characterized in that: The bottom of the frame body 1 (32) is elastically connected to an elastic block (326), and in an initial state, the elastic block (326) has a tendency to move toward the slot (331) due to its own pulling force; In the initial state, one end of the elastic block (326) facing the bracket (31) is inserted into the bottom of the bracket (31), and the other end of the elastic block (326) is in contact with the side surface of the second bracket body (33).

5. The filter cake filtering device of the flat filter material according to claim 4, characterized in that: The end of the elastic block (326) away from the bracket (31) is an inclined surface, and when the second frame (33) moves downward, it can squeeze the inclined surface of the elastic block (326) and make the other end of the elastic block (326) be stuck into the bottom of the bracket (31).

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