Plate filter

Abstract

The invention discloses a plate filter, and relates to the technical field of filtering equipment, the plate filter comprises a filtering tank, and an accommodating cavity is formed in the filtering tank; a plurality of liquid discharging openings are uniformly formed in the liquid discharging pipe at intervals; the supporting frames are connected to the top of the liquid discharging pipe in a sliding mode, and the multiple supporting frames are evenly arranged at intervals; a filter cavity is defined by the filter screen, the supporting frame and the filter screen, and a liquid outlet communicated with the filter cavity is formed in the bottom of the supporting frame; the driving assembly drives the supporting frame to do reciprocating motion; the mounting columns are detachably arranged on the filtering tank and located in the containing cavity, the mounting columns are symmetrically arranged, and the mounting columns are located above the supporting frame and are in sliding connection; the baffle slides on the supporting frame and is located in the filtering cavity, the baffle directly faces the filtering net, and the width of the baffle is smaller than the hole diameter of the liquid outlet hole; the connecting piece is connected with the baffle and the mounting column; when the supporting frame reciprocates, the baffles abut against the opposite sides of the opposite filter screens respectively. The cleaning effect can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of filtering equipment, and in particular to a plate filter. Background Art

[0002] Plate type closed filter, also known as plate filter, is a highly efficient liquid filtration equipment, widely used in many industries.

[0003] The working principle of the plate-type closed filter is mainly based on pressure filtration. The filter pump pumps the filtrate into the filter tank through the liquid inlet pipe, so that the tank is filled with the filtrate. The filter tank is provided with a filter plate, which includes a frame and a filter screen. The filter screen is coated on the opposite sides of the frame, and a filter cavity is formed between the relative filter screens. Under the action of pressure, the solid impurities in the filtrate are intercepted by the filter screen and form a filter cake on the filter screen. The filtered liquid enters the filter cavity, and then the filtrate enters the liquid outlet pipe through the filter nozzle at the bottom of the filter plate and flows out of the tank, thereby obtaining a clear filtrate. As the filtration time increases, the thickness of the filter cake continues to increase, resulting in an increase in the filtration resistance and an increase in the pressure in the tank. When the pressure rises to a certain value, it is necessary to stop inputting the filtrate into the tank and perform the slag discharge operation.

[0004] The filter tank is equipped with a cylinder to start the reciprocating motion of the filter plate. When cleaning the filter cake, the filter plate is driven to reciprocate by starting the cylinder, and the filter cake is shaken off and discharged. However, when the filter cake is shaken off, some filter residue will remain on the filter screen, affecting the filtering effect of the filter screen. Summary of the invention

[0005] In order to improve the cleaning effect, the present application provides a plate filter.

[0006] The present application provides a plate filter, which adopts the following technical solution: A plate filter, comprising A filter tank, wherein a receiving cavity is formed in the filter tank; A liquid discharge pipe is arranged in the accommodating cavity and close to the bottom, and a plurality of liquid discharge ports are formed on the liquid discharge pipe at even intervals; A support frame, slidably connected to the top of the drain pipe, wherein the support frames are provided in multiple numbers and are evenly spaced; A filter screen is arranged on two opposite sides of the support frame, the support frame and the filter screen are surrounded to form a filter cavity, and a liquid outlet hole connected to the filter cavity is formed at the bottom of the support frame; A driving assembly, disposed on the filter tank, the driving assembly drives the support frame to reciprocate; A mounting post, which is detachably mounted on the filter tank and is located in the accommodating cavity, wherein the mounting post is symmetrically arranged and is located above the support frame and is slidably connected; A baffle plate is slid on the support frame and is located in the filter cavity, the baffle plate is directly opposite to the filter screen, and the width of the baffle plate is smaller than the aperture of the liquid outlet hole; A connecting piece, connecting the baffle and the mounting column; When the support frame reciprocates, the baffles respectively abut against opposite sides of the filter screen.

[0007] By adopting the above technical solution, the driving assembly drives the support frame to reciprocate, which can shake off the filter residue on the filter net. When the baffle plate abuts against the filter net, the air between the filter net and the baffle plate is squeezed, causing the residual filter residue on the filter net and in the mesh to fall off under the impact. At the same time, when the baffle plate abuts against the filter net, the baffle plate hits the filter net, restricting the filter residue on the filter net from entering the filter cavity while shaking off the filter residue, which is beneficial to improving the cleaning effect of the filter net.

[0008] Optionally, the connecting member is a connecting column, two ends of which are respectively connected to the baffle and the mounting column, and the connecting column is slidably connected to the support frame.

[0009] By adopting the above technical solution, the connecting column connects the linkage plate and the installation column, which is conducive to fixing the linkage plate so that the filter screen and the linkage plate can move relative to each other.

[0010] Optionally, a plurality of cleaning bristles are provided on the baffle plate, and when the baffle plate abuts against the filter screen, the cleaning bristles pass through the mesh holes of the filter screen.

[0011] By adopting the above technical solution, the cleaning bristles arranged on the baffle can clean the mesh of the filter when the baffle abuts against the filter, thereby further improving the cleaning effect of the filter.

[0012] Optionally, a slide groove is formed in the baffle plate, and the baffle plate is provided with a linkage plate sliding in the slide groove; The linkage plate is connected and fixed to the cleaning bristles, and the linkage plate is located in the middle of the cleaning bristles; The baffle is formed with sliding holes linked to the sliding groove on two opposite sides thereof, and the cleaning bristles slide in the sliding holes; When the linkage plate is located in the middle of the baffle, the cleaning bristles are located in the sliding hole; The support frame is provided with a control component, and when the baffle is away from the filter screen, the control component controls the linkage plate to be in the middle position of the slide groove; The support frame is provided with a power assembly. When the baffle plate abuts against the filter screen, the power assembly drives the linkage plate to drive the cleaning bristles to protrude to the sliding hole, so that the cleaning bristles pass through the mesh of the filter screen.

[0013] By adopting the above technical solution, the automatic extension and retraction function of the cleaning bristles is realized through the arrangement of the linkage plate, the slide groove, the slide hole and other structures. When the baffle is away from the filter screen, the cleaning bristles can automatically retract into the slide hole, reducing the possibility that the cleaning bristles affect the speed of the filtered liquid entering the filter cavity; when the baffle abuts against the filter screen, the cleaning bristles can automatically extend and pass through the mesh of the filter screen to effectively clean the filter screen.

[0014] Optionally, the control assembly includes a control column, a first control spring and a second control spring; The control columns are arranged opposite to each other and staggered, the baffle is formed with a control hole connected to the slide slot, the control column slides up and down in the control hole, and the linkage plate is located between the control columns; The side wall of the control column is provided with a limiting block, and the baffle is provided with a limiting groove for the limiting block to slide up and down; The control surfaces are formed on the sides facing the control column, and the linkage plate slides on the control surfaces; The first control spring is disposed in the limiting groove, the first control spring abuts against the limiting block on a side close to the sliding groove, and the first control spring limits the control surface from completely sliding into the sliding groove; The second control spring is arranged in the limiting groove, and the second control spring abuts against a side of the limiting block away from the sliding groove; The second control spring drives the control column to protrude into the slide slot, and at this time, the linkage plate abuts against the control surface.

[0015] By adopting the above technical solution, the control component includes a control column, a first control spring and a second control spring, and through their synergistic effect, stable control and automatic resetting of the linkage plate are achieved.

[0016] Optionally, the power assembly includes a power column and a power spring; The power column slides up and down on the baffle and corresponds to the control column one by one. The power spring is arranged on the baffle, and the power spring drives the power column to protrude into the filter cavity. The power column is symmetrical and inclined to form a power surface for the baffle to slide; When the baffle plate abuts against the filter, the power column on the side away from the filter is aligned with the corresponding control hole. At this time, the power spring drives the power column to protrude into the control hole. At this time, the control column on the side away from the filter protrudes into the slide groove, pushing the linkage plate to slide toward the adjacent filter.

[0017] By adopting the above technical solution, the power assembly includes a power column and a power spring, and through their synergistic effect, power is provided for the extension of the cleaning bristles. When the baffle abuts against the filter screen, the power spring drives the power column to protrude into the control hole, pushing the control column and the linkage plate to slide, so that the cleaning bristles extend and pass through the mesh of the filter screen. This design not only simplifies the cleaning process, but also improves the cleaning efficiency and stability.

[0018] Optionally, a connecting arc plate is provided at the bottom of the support frame, the connecting arc plate is slidably connected to the outer wall of the drain pipe, and the connecting arc plate forms a liquid outlet connected to the liquid outlet hole.

[0019] By adopting the above technical solution, the connecting arc plate arranged at the bottom of the support frame can be slidably connected to the outer wall of the drain pipe to reduce the amount of liquid overflow after filtration. The liquid outlet on the connecting arc plate is connected to the liquid outlet hole of the support frame, so that the filtered liquid can be discharged smoothly.

[0020] Optionally, the driving assembly includes a driving cylinder and a driving column; The driving column is slidably disposed on the filter tank and is located in the filter cavity, and a connecting ring connected to the driving column is disposed on the top of the support frame; When the driving column slides, it drives the supporting frame to slide on the drain pipe; The driving cylinder is arranged on the filter tank, and the driving cylinder drives the driving column to reciprocate; When the driving cylinder drives the driving column to abut against the inner wall of the filter tank, the drain port is aligned with and communicated with the liquid outlet.

[0021] By adopting the above technical solution, the driving assembly includes a driving cylinder and a driving column, and through their synergistic action, the reciprocating motion of the support frame is realized. The driving cylinder drives the driving column to slide, driving the support frame and the filter screen to reciprocate on the drain pipe, so that the filter residue on the filter screen falls off. When the driving cylinder drives the driving column to abut against the inner wall of the filter tank, the drain port is aligned with the liquid outlet and connected, so that the filtered liquid can be discharged smoothly.

[0022] In summary, the present application includes at least one of the following beneficial effects: 1. The driving assembly drives the support frame to reciprocate, which can shake off the filter residue on the filter. When the baffle plate abuts against the filter, the air between the filter and the baffle plate is squeezed, causing the residual filter residue on the filter and in the mesh to fall off. At the same time, when the baffle plate abuts against the filter, the baffle plate hits the filter, restricting the filter residue on the filter from entering the filter cavity and shaking off the filter residue, which is beneficial to improving the cleaning effect of the filter; 2. The cleaning bristles arranged on the baffle can clean the mesh of the filter when the baffle abuts against the filter, thereby further improving the cleaning effect of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the external structure of an embodiment of the present application; Figure 2 It is a schematic diagram of the internal structure of an embodiment of the present application; Figure 3 is a schematic diagram of an internal cross-section of an embodiment of the present application; Figure 4 is a schematic diagram of the internal cross-section of the baffle of an embodiment of the present application; Figure 5 yes Figure 3 A magnified schematic diagram of part A; Figure 6 yes Figure 4 A magnified schematic diagram of part B; Figure 7 is a schematic diagram of the connection structure between the support block and the baffle in an embodiment of the present application; Figure 8 yes Figure 7 Enlarged schematic diagram of part C of FIG.

[0024] Figure numerals: 1, filter tank; 11, tank body; 111, accommodating chamber; 12, filling cover; 13, drain pipe; 131, drain port; 2, support frame; 21, filter net; 22, filter chamber; 23, liquid outlet; 24, connecting arc plate; 241, liquid outlet; 25, connecting ring; 3, drive assembly; 31, drive cylinder; 32, drive column; 4, mounting column; 5, baffle; 51, connecting column; 52, cleaning brush; 53, slide groove; 531, slide hole; 54, linkage plate; 55, control hole; 551, limiting groove; 6, control assembly; 61, control column; 611, limiting block; 612, control surface; 62, first control spring; 63, second control spring; 7, power assembly; 71, power column; 711, power surface; 72, power spring. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-8 This application is described in further detail.

[0026] The embodiment of the present application discloses a plate filter.

[0027] The inventor of the present application found that part of the filter residue remains on the filter screen when cleaning the filter cake, which affects the filtering effect of the filter screen. To this end, the present application mainly adopts the following scheme to achieve the purpose of improving the cleaning effect. The present application is further described in detail below.

[0028] See also Figure 1 and Figure 2The plate filter provided in the embodiment of the present application includes a filter tank 1, wherein the filter tank 1 includes a tank body 11 and a pot cover 12, wherein a receiving cavity 111 is formed in the tank body 11. The pot cover 12 is placed on the tank body 11 to close the receiving cavity 111, and the pot cover 12 is fixedly connected to the tank body 11 by bolts and nuts.

[0029] See also Figure 2 and Figure 3 The bottom of the tank body 11 is fixedly connected with a liquid inlet pipe, which is communicated with the accommodating chamber 111 to pass the liquid to be filtered into the accommodating chamber 111. A discharge port is formed at the bottom of the tank body 11, and a control valve is fixedly installed at the bottom of the tank body 11 to control the opening or closing of the discharge port, and the excrement to be discharged in the accommodating chamber 111 is discharged through the discharge port.

[0030] See also Figure 1 and Figure 2 The plate filter also includes a drain pipe 13, a support frame 2 and a filter screen 21. The drain pipe 13 is installed and fixed on the outer wall of the tank body 11 and extends into the accommodating chamber 111. The drain pipe 13 is located near the bottom of the accommodating chamber 111. The central axis of the drain pipe 13 is perpendicular to and intersects with the central axis of the tank body 11.

[0031] The support frame 2 is slidably connected to the top of the drain pipe 13, and the support frame 2 is in a "mouth" shape. There are multiple support frames 2 and they are evenly spaced along the axial direction of the drain pipe 13, and the area of ​​the support frame 2 gradually decreases from the middle to both sides to adapt to the change of the internal space of the tank body 11.

[0032] See also Figure 3 and Figure 4 There are multiple groups of filter screens 21, each group of filter screens 21 corresponds to a support frame 2, each group of filter screens 21 has two filter screens, and the two filter screens 21 in the same group are respectively installed and fixed on the opposite sides of the support frame 2, so that the filter screens 21 and the support frame 2 cooperate with each other to form a filter chamber 22. After the liquid to be filtered in the accommodating chamber 111 is filtered by the filter screen 21, the filtered liquid enters the filter chamber 22.

[0033] See also Figure 4 and Figure 5, a drainage port 131 is formed on the drainage pipe 13, and there are multiple drainage ports 131 and they are evenly spaced. A liquid outlet 23 extending in the vertical direction is formed at the bottom of the support frame 2, and the liquid outlet 23 is connected to the filter chamber 22, and the filtrate in the filter chamber 22 is discharged through the liquid outlet 23. A connecting arc plate 24 is fixedly installed at the bottom of the support frame 2, and the shape of the connecting arc plate 24 is adapted to the shape of the drainage pipe 13, and the arc-shaped concave side of the connecting arc plate 24 is slidably connected to the outer wall of the top of the drainage pipe 13. The connecting arc plate 24 forms a liquid outlet 241, and the liquid outlet 241 is aligned with the liquid outlet 23 and is connected. In the initial state, the liquid outlet 241 is connected with the drainage port 131. At this time, the filtrate in the filter chamber 22 passes through the liquid outlet 23, the liquid outlet 241 and the drainage port 131 successively and enters the drainage pipe 13, and then is discharged through the drainage pipe 13.

[0034] See also Figure 1 and Figure 2 The plate filter also includes a driving assembly 3, which is used to drive the support frame 2 to reciprocate. The driving assembly 3 includes a driving column 32 and a driving cylinder 31. The driving column 32 is slidably connected to the filter tank 1. The driving column 32 is located in the filter chamber 22 and abuts against the top of the support frame 2. A connecting ring 25 is fixedly installed on the top of the support frame 2. The connecting ring 25 is sleeved on the outer peripheral side of the driving column 32 and connected and fixed. When the driving column 32 slides, the supporting frame 2 is driven to slide on the drain pipe 13 through the connecting ring 25. The driving cylinder 31 is installed and fixed on the outer wall of the filter tank 1. The piston rod of the driving cylinder 31 is coaxially arranged with the driving column 32 and threadedly connected. When the driving cylinder 31 is started, the driving column 32 is driven to reciprocate. At this time, the support frame 2 follows the driving column 32 to reciprocate, so that the filter residue on the filter screen 21 is shaken and falls off.

[0035] See also Figure 3 and Figure 5 In the initial state, the driving cylinder 31 (driving cylinder 31 is Figure 1 The driving column 32 is driven to abut against the inner wall of the tank body 11, and the discharge port 131 is aligned and connected with the liquid outlet 241. The driving column 32 can be made of metal material to withstand a large driving force.

[0036] The plate filter also includes a mounting column 4, a baffle 5 and a connector. The two ends of the mounting column 4 are respectively fixedly connected to a fixing plate, and the fixing plate is penetrated with a fixing bolt, and the fixing bolt is threadedly connected to the tank body 11, so that the mounting column 4 can be detachably fixed to the tank body 11. There are two mounting columns 4 and they are symmetrically arranged. The mounting columns 4 are located above the support frame 2, and the mounting columns 4 and the support frame 2 are in sliding contact.

[0037] See also Figure 6The baffle 5 is located in the filter cavity 22 and faces the filter screen 21. The peripheral side wall of the baffle 5 is in sliding contact with the peripheral inner wall of the support frame 2, and the width of the baffle 5 is smaller than the aperture of the liquid outlet 23. The connecting member is a connecting column 51, and the two ends of the connecting column 51 are respectively connected and fixed to the baffle 5 and the mounting column 4. The connecting column 51 is slidably connected to the support frame 2. When the support frame 2 slides, the baffle 5 slides in the filter cavity 22.

[0038] When the support frame 2 slides away from the driving cylinder 31 (the driving cylinder 31 is Figure 1 When the support frame 2 slides to the side close to the driving cylinder 31, the filter screen 21 on the side away from the driving cylinder 31 approaches the baffle 5 until the filter screen 21 abuts against the baffle 5. When the support frame 2 slides to the side close to the driving cylinder 31, the filter screen 21 on the side away from the driving cylinder 31 approaches the baffle 5 until the filter screen 21 abuts against the baffle 5. During the movement of the filter screen 21, the air between the filter screen 21 and the baffle 5 is squeezed, so that the residual filter residue on the filter screen 21 and in the mesh is impacted and falls off. At the same time, when the baffle 5 abuts against the filter screen 21, the baffle 5 hits the filter screen 21, restricting the filter residue on the filter screen 21 from entering the filter cavity 22 while shaking off the filter residue, which is beneficial to improving the cleaning effect of the filter screen 21.

[0039] A slide groove 53 is formed in the baffle plate 5, and a linkage plate 54 is provided on the baffle plate 5. The linkage plate 54 slides in the slide groove 53, and the peripheral side wall of the linkage plate 54 is in sliding contact with the peripheral side wall of the slide groove 53. Slide holes 531 are formed on the side walls of the baffle plate 5 facing the filter screen 21. The slide holes 531 are connected to the slide groove 53, and the slide holes 531 correspond to the meshes of the filter screen 21 one by one.

[0040] The baffle plate 5 is provided with a cleaning bristle 52, which is slidably connected to the sliding hole 531, and the cleaning bristle 52 corresponds to the sliding hole 531 one by one. The cleaning bristle 52 is connected and fixed to the linkage plate 54, and the linkage plate 54 is located in the middle of the cleaning bristle 52. When the linkage plate 54 is located in the middle of the baffle plate 5, the cleaning bristle 52 is located in the sliding hole 531. When the baffle plate 5 abuts against the filter screen 21, the linkage plate 54 abuts against the groove wall of the chute 53 close to the side of the adjacent filter screen 21. At this time, the cleaning bristle 52 protrudes from the sliding hole 531 and passes through the mesh of the filter screen 21, further improving the cleaning effect of the filter screen 21. The cleaning bristle 52 can be made of different types of materials, such as stainless steel wire or polyester fiber, to adapt to different filtering requirements and material properties.

[0041] See also Figure 7 and Figure 8The support frame 2 is provided with a control assembly 6, and the control assembly 6 controls the linkage plate 54 to be in the middle of the slide slot 53. The control assembly 6 includes a control column 61, a first control spring 62 and a second control spring 63. There are two control columns 61, and the two control columns 61 are arranged oppositely and staggered. The baffle plate 5 is formed with a control hole 55 connected to the slide slot 53, and the control hole 55 corresponds to the control column 61 one by one, and the control column 61 slides up and down in the control hole 55. The linkage plate 54 is located between the two control columns 61, and the side wall of the control column 61 is provided with a limiting block 611, and the baffle plate 5 is provided with a limiting groove 551 for the limiting block 611 to slide up and down. The two opposite control columns 61 are respectively inclined to form a control surface 612 on the opposite sides, and the control surface 612 is located at the bottom of the control column 61, and the control surface 612 faces the linkage plate 54, and the linkage plate 54 slides on the control surface 612.

[0042] The first control spring 62 is installed in the limiting groove 551, and the first control spring 62 abuts against the side of the limiting block 611 close to the slide groove 53. The first control spring 62 drives the limiting block 611 to move upward, supports the control column 61, and limits the control surface 612 to completely slide into the slide groove 53. The second control spring 63 is installed in the limiting groove 551, and the second control spring 63 abuts against the side of the limiting block 611 away from the slide groove 53. The elasticity of the second control spring 63 is greater than the elasticity of the first control spring 62. The second control spring 63 drives the control column 61 to protrude into the slide groove 53. At this time, the opposite sides of the linkage plate 54 abut against the control surfaces 612 on both sides, so that the linkage plate 54 is in the middle position of the slide groove 53.

[0043] See also Figure 6 and Figure 8 The support frame 2 is provided with a power assembly 7. When the baffle 5 abuts against the filter screen 21, the power assembly 7 drives the linkage plate 54 to drive the cleaning bristles 52 to protrude to the sliding hole 531, so that the cleaning bristles 52 pass through the mesh of the filter screen 21.

[0044] The power assembly 7 includes a power column 71 and a power spring 72. The power column 71 is in a "cross" structure. The power column 71 slides up and down on the baffle 5, and the power column 71 corresponds to the control column 61 one by one. The power spring 72 is installed in the baffle 5. When the power spring 72 is elastically released, the power spring 72 drives the power column 71 to protrude into the filter cavity 22. The bottom of the power column 71 is symmetrically and inclined to form a power surface 711 for the baffle 5 to slide.

[0045] When the linkage plate 54 approaches the filter screen 21, the linkage plate 54 slides on the power surface 711, pushing the power column 71 to slide into the baffle plate 5, and the power spring 72 enters a compressed state. When the baffle plate 5 abuts against the filter screen 21 on the side away from the driving cylinder 31, the power column 71 on the side away from the driving cylinder 31 is aligned with the control hole 55 close to the driving cylinder 31, and the power spring 72 is released, driving the power column 71 to protrude into the control hole 55, and at this time, the driving cylinder 31 is away from the driving cylinder 31 (the driving cylinder 31 is in the Figure 1 The power column 71 on the side of the filter 21 pushes the control column 61 on the side close to the filter 21 to protrude into the slide groove 53, pushing the linkage plate 54 to slide toward the adjacent filter 21. When the baffle 5 is away from the filter 21, the linkage plate 54 slides on the power surface 711, pushing the power column 71 out of the control hole 55. At this time, the first control spring 62 drives the control column 61 to move upward to the initial state, so that the linkage plate 54 returns to the middle position of the slide groove 53. Correspondingly, when the baffle 5 abuts against the filter 21 on the side close to the driving cylinder 31, another power column 71 pushes the corresponding control column 61 to move according to the same steps, so that the linkage plate 54 moves toward the corresponding filter 21.

[0046] The implementation principle of a plate filter in the embodiment of the present application is: When cleaning the filter residue, the driving cylinder 31 is started to make the support frame 2 reciprocate. When the support frame 2 moves, the baffle 5 approaches the filter screen 21, so that the linkage plate 54 drives the cleaning bristles 52 to protrude out of the sliding hole 531. At this time, the cleaning bristles 52 pass through the mesh of the filter screen 21 to improve the cleaning effect of the filter screen 21.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A plate filter, characterized in that: include A filter tank (1), wherein a receiving cavity (111) is formed in the filter tank (1); A liquid discharge pipe (13) is arranged in the accommodating cavity (111) and close to the bottom, and a plurality of liquid discharge ports (131) are formed on the liquid discharge pipe (13) at even intervals; A support frame (2) is slidably connected to the top of the drainage pipe (13), wherein a plurality of support frames (2) are arranged evenly spaced apart; A filter screen (21) is arranged on opposite sides of the support frame (2); the support frame (2) and the filter screen (21) surround a filter cavity (22); a liquid outlet (23) communicating with the filter cavity (22) is formed at the bottom of the support frame (2); A driving component (3) is arranged on the filter tank (1), and the driving component (3) drives the support frame (2) to reciprocate; A mounting column (4) is detachably arranged on the filter tank (1) and is located in the accommodating cavity (111), the mounting columns (4) are symmetrically arranged, and the mounting columns (4) are located above the support frame (2) and are slidably connected; a baffle (5) sliding on the support frame (2) and located in the filter cavity (22), the baffle (5) facing the filter screen (21), and the width of the baffle (5) being smaller than the aperture of the liquid outlet hole (23); A connecting piece, connecting the baffle (5) and the mounting column (4); When the support frame (2) reciprocates, the baffles (5) respectively abut against the opposite sides of the filter screen (21).

2. A plate filter according to claim 1, characterized in that: The connecting member is a connecting column (51), the two ends of the connecting column (51) are respectively connected to the baffle (5) and the mounting column (4), and the connecting column (51) is slidably connected to the support frame (2).

3. A plate filter according to claim 1, characterized in that: A plurality of cleaning bristles (52) are arranged on the baffle plate (5); when the baffle plate (5) abuts against the filter screen (21), the cleaning bristles (52) pass through the meshes of the filter screen (21).

4. A plate filter according to claim 3, characterized in that: A sliding groove (53) is formed in the baffle plate (5), and the baffle plate (5) is provided with a linkage plate (54) that slides in the sliding groove (53); The linkage plate (54) is connected and fixed to the cleaning bristles (52), and the linkage plate (54) is located in the middle of the cleaning bristles (52); The baffle (5) is provided with sliding holes (531) linked to the sliding groove (53) on opposite sides thereof, and the cleaning bristles (52) slide in the sliding holes (531); When the linkage plate (54) is located in the middle position of the baffle plate (5), the cleaning bristles (52) are located in the sliding hole (531); The support frame (2) is provided with a control component (6), and when the baffle plate (5) is away from the filter screen (21), the control component (6) controls the linkage plate (54) to be located in the middle position of the slide groove (53); The support frame (2) is provided with a power assembly (7); when the baffle plate (5) abuts against the filter screen (21), the power assembly (7) drives the linkage plate (54) to drive the cleaning bristles (52) to protrude into the sliding hole (531), so that the cleaning bristles (52) pass through the mesh of the filter screen (21).

5. A plate filter according to claim 4, characterized in that: The control assembly (6) comprises a control column (61), a first control spring (62) and a second control spring (63); The control columns (61) are arranged opposite to each other and staggered, the baffle plate (5) is formed with a control hole (55) communicating with the slide groove (53), the control column (61) slides up and down in the control hole (55), and the linkage plate (54) is located between the control columns (61); The side wall of the control column (61) is provided with a limiting block (611), and the baffle (5) is provided with a limiting groove (551) for the limiting block (611) to slide up and down; Control surfaces (612) are formed by being inclined on the sides facing the control column (61), and the linkage plate (54) slides on the control surfaces (612); The first control spring (62) is disposed in the limiting groove (551), the first control spring (62) abuts against a side of the limiting block (611) close to the sliding groove (53), and the first control spring (62) limits the control surface (612) from completely sliding into the sliding groove (53); The second control spring (63) is arranged in the limiting groove (551), and the second control spring (63) abuts against a side of the limiting block (611) away from the sliding groove (53); The second control spring (63) drives the control column (61) to protrude into the slide groove (53), and at this time the linkage plate (54) abuts against the control surface (612).

6. A plate filter according to claim 5, characterized in that: The power assembly (7) comprises a power column (71) and a power spring (72); The power column (71) slides up and down on the baffle (5) and corresponds one-to-one with the control column (61); the power spring (72) is arranged on the baffle (5); and the power spring (72) drives the power column (71) to protrude into the filter cavity (22); The power column (71) is symmetrically and inclined to form a power surface (711) for the baffle (5) to slide; When the baffle (5) abuts against the filter (21), the power column (71) on the side away from the filter (21) is aligned with the corresponding control hole (55), and the power spring (72) drives the power column (71) to protrude into the control hole (55). At this time, the control column (61) on the side away from the filter (21) protrudes into the slide groove (53), pushing the linkage plate (54) to slide toward the filter (21).

7. A plate filter according to claim 1, characterized in that: A connecting arc plate (24) is provided at the bottom of the support frame (2), the connecting arc plate (24) is slidably connected to the outer wall of the liquid discharge pipe (13), and the connecting arc plate (24) is formed with a liquid outlet (241) connected to the liquid outlet hole (23).

8. A plate filter according to claim 7, characterized in that: The driving assembly (3) comprises a driving cylinder (31) and a driving column (32); The driving column (32) is slidably disposed on the filter tank (1) and is located in the filter cavity (22); a connecting ring (25) connected to the driving column (32) is disposed on the top of the support frame (2); When the driving column (32) slides, it drives the supporting frame (2) to slide on the drainage pipe (13); The driving cylinder (31) is arranged on the filter tank (1), and the driving cylinder (31) drives the driving column (32) to reciprocate; When the driving cylinder (31) drives the driving column (32) to abut against the inner wall of the filter tank (1), the liquid discharge port (131) is aligned with and communicates with the liquid outlet (241).

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