Filter press for sludge treatment

Abstract

The invention discloses a filter press for sludge treatment, and particularly relates to the technical field of sludge treatment devices, the filter press comprises a filter pressing bin, a baffle plate, a filter plate, a diaphragm, a fixed pipe, a rectangular frame, a fixed arm, a clamping strip and filter cloth; and the driving unit is used for driving the rectangular frame to swing up and down along the rotating fulcrum of the rectangular frame on the fixed pipe. The two clamping strips are arranged and are used for clamping and connecting the two ends of the filter cloth, when the flow of sewage in the fixed pipe is small, the driving unit is triggered to act, the driving unit drives the rectangular frame to rotate along the rotating fulcrum of the rectangular frame on the fixed pipe, then the two fixed arms swing, namely one fixed arm swings upwards, and the other fixed arm swings downwards. One fixed arm swings downwards, and the other fixed arm swings downwards, so that the filter cloth can be driven to move in the strip-shaped through groove of the filter plate, and one side, which is not in contact with mud, of the filter cloth moves to the opening part of the diaphragm mounting groove to separate sludge, so that the sludge treatment and separation efficiency of the filter cloth is relatively high.

Description

Technical Field

[0001] The present invention relates to the technical field of sludge treatment devices, and more specifically, to a filter press for sludge treatment. Background Art

[0002] The filter press is a mechanical device that uses a special filter medium to exert a certain pressure on an object, causing the liquid to seep out. It is a commonly used solid-liquid separation device.

[0003] The filtering part of the filter press generally includes at least a filter plate, a filter cloth and a diaphragm. The filter cloth mainly serves the purpose of separating mud and water. When in use, the filter plate exerts pressure on the sludge, and the sludge in the sludge cannot pass through the filter cloth, while the sewage sludge passes through the filter cloth, and is further separated and filtered by the diaphragm. Since the filter cloth mainly separates the sludge and sewage, the surface of the filter cloth is easily clogged with mud after being used for a period of time, which makes it difficult for sewage to pass through the filter cloth, and reduces the sludge treatment efficiency. Therefore, a filter press device or filter press is needed that can automatically clean the filter cloth after the filter cloth is clogged with mud. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a filter press for sludge treatment. The technical problem to be solved by the present invention is that after the filter cloth of the filter press in the prior art has been used for a period of time, the surface is easily blocked by mud, which makes it difficult for sewage to pass through the filter cloth, thereby reducing the sludge treatment efficiency.

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

[0006] A filter press for sludge treatment, comprising a filter press chamber mounted on a bracket, a baffle connected to the bottom of the filter press chamber, and further comprising:

[0007] A filter plate engaged in the filter press bin, the filter plate slides vertically and freely in the filter press bin, a concave diaphragm mounting groove is provided on the lower surface of the filter plate, and a diaphragm is installed in the diaphragm mounting groove;

[0008] A fixed tube vertically fixed to the upper surface of the filter plate, the interior of the fixed tube being in communication with the interior of the diaphragm mounting groove;

[0009] A rectangular frame rotatably connected to the periphery of the fixed tube, each of the two ends of the rectangular frame is fixedly connected to a fixed arm, one end of the fixed arm away from the rectangular frame is hingedly connected to a clamping strip, and the two clamping strips are jointly installed with a filter cloth, and the filter plate is provided with a strip-shaped through groove for the two ends of the filter cloth to pass freely, and the two ends of the filter cloth are respectively passed through the two strip-shaped through grooves and are respectively connected to the two clamping strips, and the surface of the filter cloth is in contact with the lower surface of the diaphragm;

[0010] A driving unit is arranged on the fixed tube, and the driving unit is used to drive the rectangular frame to swing up and down along the rotation fulcrum of the rectangular frame on the fixed tube.

[0011] Furthermore, a mud discharge port is provided in the middle of the baffle.

[0012] Furthermore, at least one hydraulic cylinder is vertically mounted on the lower surface of the baffle, and a telescopic rod of the hydraulic cylinder penetrates the baffle and is drivingly connected to the filter plate.

[0013] Furthermore, a water inlet is provided on one side surface of the filter press bin.

[0014] Furthermore, the driving unit includes a hollow cylinder hinged to the upper end of the fixed tube, a telescopic rod is coaxially passed through the lower end of the hollow tube, the telescopic rod slides freely on the hollow tube, one end of the telescopic rod passing through the hollow tube is hinged to the upper side of the rectangular frame, the other end of the telescopic rod is coaxially fixed with a piston, the piston slides freely in the hollow tube, a first interface is provided on the outer wall of the fixed tube, a second interface is provided on the outer wall of the hollow tube, and the first interface is connected to the second interface through a pipeline.

[0015] Furthermore, a return spring is installed in the hollow cylinder, the return spring is wrapped around the telescopic rod, and two ends of the return spring in the elastic force direction are fixedly connected to the piston and the inner bottom wall of the hollow cylinder in a one-to-one correspondence.

[0016] Furthermore, two beating units are provided on the upper surface of the filter plate, and the two beating units correspond to the two ends of the filter cloth respectively. The beating unit includes a mounting block connected to the upper surface of the filter plate, and a sliding rod is horizontally passed through the mounting block. The sliding rod slides freely on the mounting block, and a beating plate is connected to the end of the sliding rod away from the mounting block. The fixed arm is provided with a reciprocating mechanism for driving the sliding rod to move horizontally.

[0017] Furthermore, the reciprocating mechanism includes a rotating column vertically rotatably connected to the top of the filter plate, a floating frame is fixedly connected to the end of the sliding rod, the rotating column is located in a hollow portion of the floating frame, a connecting rod is fixedly connected to the outer wall of the floating frame on a side away from the sliding rod, the beating plate is connected to the end of the connecting rod, a transverse movement component is provided on the rotating column for driving the floating frame to reciprocate horizontally, and a rotating component is provided on the fixed arm for driving the rotating column to rotate.

[0018] Furthermore, the transverse movement assembly includes a fixed ring sleeved on the rotating column, a protrusion is fixed to the periphery of the fixed ring, the protrusion is abutted against the inner wall of the floating frame, a driving spring is sleeved on the sliding rod, and both ends of the driving spring in the direction of elastic force elastically press against the floating frame and the mounting block respectively and correspondingly.

[0019] Furthermore, the rotating component includes a floating rod coaxially arranged on the rotating column, a sliding pin is fixedly connected to the upper end of the floating rod, the fixed arm is provided with a waist-shaped hole for the sliding pin to be inserted, the sliding pin slides freely in the waist-shaped hole, the rotating column is coaxially provided with a sliding hole for the floating rod to pass freely, a ball is rotatably embedded in the lower end of the floating rod, the inner wall of the sliding hole is provided with a spiral rolling groove for the ball to be engaged, and the ball rolls freely in the spiral rolling groove.

[0020] Technical effects and advantages of the present invention:

[0021] 1. By setting two clamping strips, the clamping strips clamp the two ends of the filter cloth. When the sewage flow in the fixed pipe is small, the driving unit is triggered to drive the rectangular frame to rotate along the rotating fulcrum of the rectangular frame on the fixed pipe, so that the two fixed arms swing, that is, one fixed arm swings upward and the other fixed arm swings downward, so that the filter cloth can be driven to move in the strip groove of the filter plate. On the one hand, the mud on the surface of the filter cloth can be scraped off by the edge of the strip groove mouth in the process of passing through the strip groove. On the other hand, the side of the filter cloth that does not contact the mud moves to the mouth of the diaphragm mounting groove to separate the sludge, so that the filter cloth has a higher efficiency in treating and separating the sludge;

[0022] 2. By setting a beating plate, when the rectangular frame swings up and down, it will trigger the sliding rod to reciprocate horizontally, thereby causing the beating plate to reciprocate horizontally and produce a beating and knocking effect on the surface of the filter cloth, so that the mud on the surface of the filter cloth can be beaten off before drying. On the other hand, by beating, the mud on the surface of the mud that has not been scraped off by the edge of the strip-shaped notch can be beaten off, avoiding affecting the permeability of the filter cloth;

[0023] 3. By setting a floating rod, a rotating column, a ball and a spiral rolling groove, when the rectangular frame swings up and down, the floating rod will slide in the sliding hole of the rotating column. When sliding, the ball will roll in the spiral rolling groove, thereby driving the rotating column to rotate. When the rotating column rotates, it drives the protrusion to rotate around the axial direction of the rotating column, so that the protrusion can intermittently abut the inner wall of the floating frame, thereby driving the floating frame to move horizontally. The structure is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a filter press for sludge treatment in the present invention;

[0025] Figure 2 for Figure 1 Schematic diagram of the structure at an upward viewing angle;

[0026] Figure 3 for Figure 1 A schematic cross-sectional structure diagram of ;

[0027] Figure 4 for Figure 3 A magnified schematic diagram of the local structure at point A;

[0028] Figure 5 It is a schematic diagram of the structure after the filter plate, filter cloth and fixed pipe are assembled in the present invention;

[0029] Figure 6 for Figure 5 A schematic diagram of the structure from a side view angle;

[0030] Figure 7 for Figure 6 A magnified schematic diagram of the local structure at B in the middle;

[0031] Figure 8 for Figure 5 Another perspective structural diagram;

[0032] Fig. 9 for Figure 8 A schematic cross-sectional structure diagram of ;

[0033] Fig.10 for Fig. 9 Enlarged schematic diagram of the local structure at point C in the middle.

[0034] The accompanying drawings are marked as follows: 1. hydraulic cylinder; 2. water inlet; 3. baffle; 4. filter press chamber; 5. fixed pipe; 6. connecting pipe; 7. hollow cylinder; 8. mud discharge port; 9. membrane hole; 10. rectangular frame; 11. floating rod; 12. rotating column; 13. clamping strip; 14. fixed arm; 15. piston; 16. reset spring; 17. second interface; 18. telescopic rod; 19. first interface; 20. filter plate; 21. bearing; 22. filter cloth; 23. mounting block; 24. sliding rod; 25. driving spring; 26. bump; 27. floating frame; 28. connecting rod; 29. ​​flapping plate; 30. sliding pin; 31. waist-shaped hole; 32. diaphragm; 33. ball; 34. spiral rolling groove. DETAILED DESCRIPTION

[0035] 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.

[0036] like Figure 1-Figure 10As shown, the present embodiment discloses: a filter press for sludge treatment, including a filter press chamber 4, three legs are welded at the bottom of the filter press chamber 4, a bottom plate is welded at the bottom of the three legs, the bottom plate and the legs constitute a bracket, so that the filter press chamber 4 is installed on a horizontal placement surface through the bracket, the bottom of the filter press chamber 4 is open and a baffle 3 is connected by bolts, the baffle 3 closes the bottom opening of the filter press chamber 4, a mud discharge port 8 is opened in the middle of the baffle 3, the mouth of the mud discharge port 8 is detachably connected to a baffle cover, the baffle cover is used to close the mouth of the mud discharge port 8, a filter plate 20 is clamped inside the filter press chamber 4, the filter plate 20 can slide freely up and down in the filter press chamber 4, and a concave diaphragm installation is opened on the lower surface of the filter plate 20 A diaphragm 32 is installed in the diaphragm installation groove, and a plurality of membrane holes 9 are opened on the surface of the diaphragm 32. The membrane holes 9 can allow liquid to pass through but solids cannot pass through. In addition, a fixed pipe 5 is vertically welded on the top of the filter plate 20, and the interior of the fixed pipe 5 is connected with the interior of the diaphragm installation groove. Two hydraulic cylinders 1 are vertically installed on the lower surface of the baffle 3. The telescopic rods of the hydraulic cylinders 1 penetrate the baffle 3 and are connected to the filter plate 20 for driving. A water inlet 2 is provided on the surface of one side of the filter press bin 4. The water inlet 2 is connected to an external sludge pump through a pipeline. The sludge pump transports muddy water to the water inlet 2, and then transports it to the filter press bin 4 through the water inlet 2. The filter plate 20 is located above the liquid level of the muddy water in the filter press bin 4. In addition, a control valve is installed on the water inlet 2;

[0037] The fixed pipe 5 is rotatably connected to the rectangular frame 10 at its periphery, and the fixed pipe 5 penetrates into the hollow part in the middle of the rectangular frame 10. The two ends of the rectangular frame 10 are fixedly connected to fixed arms 14, and the fixed arm 14 is hinged with a clamping strip 13 at one end away from the rectangular frame 10. The two clamping strips 13 are jointly installed with the filter cloth 22. The filter plate 20 is provided with strip-shaped grooves for the two ends of the filter cloth 22 to pass freely. The two ends of the filter cloth 22 are respectively penetrated by the two strip-shaped grooves and are respectively connected to the two clamping strips 13. The surface of the filter cloth 22 is in contact with the lower surface of the diaphragm 32. When the sludge is treated, the water inlet 2 is first closed, and then the hydraulic cylinder 1 is started. The telescopic rod of the hydraulic cylinder 1 is shortened, and the filter plate 2 is driven 0 moves downward. When moving downward, the filter plate 20 drives the filter cloth 22 and the diaphragm 32 to move downward. When moving downward, the filter cloth 22 begins to squeeze the sludge. The mud in the sludge cannot pass through the filter cloth 22, but the muddy water can pass through the filter cloth 22. The membrane holes 9 on the diaphragm 32 further separate and filter the muddy water. In this process, mud will adhere to both surfaces of the filter cloth 22, and the sewage will enter the fixed pipe 5 through the membrane holes 9. In the early stage of the filter press, the amount of mud attached to the surface of the filter cloth 22 and the diaphragm 32 is small, so the water permeability of the surface of the filter cloth 22 and the diaphragm 32 is better at this time, thereby making the flow rate of sewage entering the fixed pipe 5 larger in the early stage of the filter press.

[0038] A hollow cylinder 7 is hinged on the upper end of the fixed pipe 5, and a connecting pipe 6 is installed on the upper end of the fixed pipe 5. The connecting pipe 6 is connected to the external collection pipeline. A telescopic rod 18 is coaxially penetrated at the lower end of the hollow cylinder 7. The telescopic rod 18 slides freely on the hollow cylinder 7. One end of the telescopic rod 18 passing through the hollow cylinder 7 is hinged to the upper side of the rectangular frame 10. The other end of the telescopic rod 18 is coaxially fixed with a piston 15. The piston 15 slides freely in the hollow cylinder 7. A first interface 19 is provided on the outer wall of the fixed pipe 5, and a second interface 17 is provided on the outer wall of the hollow cylinder 7. The first interface 19 is connected to the second interface 17 through a pipeline. A reset tension spring 16 is installed in the hollow cylinder 7. The reset tension spring 16 is wrapped around the telescopic rod 18, and its two ends in the direction of elastic force are respectively fixed to the piston 15 and the inner bottom wall of the hollow cylinder 7 in a one-to-one correspondence. When the sewage flow in the fixed pipe 5 is large, the sewage cannot flow quickly from the connecting pipe 6 Into the collection pipeline, at this time, part of the sewage will enter the second interface 17 from the first interface 19, and then enter the hollow cylinder 7 from the second interface 17, and generate an upward thrust on the piston 15, so that the piston 15 moves upward in the hollow cylinder 7, thereby making the reset spring 16 in an elongated state and accumulating elastic potential energy. When the sewage flow in the fixed pipe 5 decreases, the sewage buoyancy on the piston 15 decreases, and the elastic potential energy of the reset spring 16 is released and drives the piston 15 to move downward, so that the piston 15 drives the telescopic rod 18 to move downward. When the telescopic rod 18 moves downward, it will drive the rectangular frame 10 to swing downward, thereby making the two fixed arms 14 swing upward and downward respectively, so that the two clamping strips 13 can pull the filter cloth 22 to move. When the filter cloth 22 moves, the mouth edge of the strip-shaped groove will scrape the mud on the two surfaces of the filter cloth 22;

[0039] Two mounting blocks 23 are connected to the upper surface of the filter plate 20, and the two mounting blocks 23 correspond to the two ends of the filter cloth 22 respectively. A sliding rod 24 is horizontally penetrated on the mounting block 23, and the sliding rod 24 slides freely on the mounting block 23. The end of the sliding rod 24 away from the mounting block 23 is connected to a flapping plate 29. The top of the filter plate 20 is vertically rotatably connected to a rotating column 12 through an installation bearing 9. A floating frame 27 is fixedly connected to the end of the sliding rod 24. The rotating column 12 is located in the hollow part of the floating frame 27. A connecting rod 28 is fixedly connected to the outer wall of the floating frame 27 away from the sliding rod 24. The flapping plate 29 is connected to the end of the connecting rod 28. A fixing ring is sleeved on the rotating column 12, and a protrusion 26 is fixedly connected to the periphery of the fixing ring. The protrusion 26 and the floating frame The inner wall of 27 is in contact with each other, and a driving spring 25 is wrapped around the sliding rod 24. The two ends of the driving spring 25 in the elastic force direction elastically press against the floating frame 27 and the mounting block 23 one by one. A floating rod 11 is coaxially passed through the rotating column 12, and a sliding pin 30 is fixedly connected to the upper end of the floating rod 11. The fixed arm 14 is provided with a waist-shaped hole 31 for the sliding pin 30 to be inserted into, and the sliding pin 30 slides freely in the waist-shaped hole 31. The rotating column 12 is coaxially provided with a sliding hole for the floating rod 11 to pass freely. A ball 33 is rotatably embedded at the lower end of the floating rod 11, and a spiral rolling groove 34 is provided on the inner wall of the sliding hole for the ball 33 to be engaged. The ball 33 rolls freely in the spiral rolling groove 34, thereby enabling the rotating column 12 to rotate.

[0040] The working principle of the present invention is as follows: the sludge pump is started, and the sludge pump conveys the sludge water to the water inlet 2, and then conveys the sludge water to the filter press chamber 4 through the water inlet 2, and the filter plate 20 is located above the liquid level of the sludge water in the filter press chamber 4, and then the control valve on the water inlet 2 is closed, so that the water inlet 2 is in a closed state, and then the hydraulic cylinder 1 is started, the telescopic rod of the hydraulic cylinder 1 is shortened, and the filter plate 20 is driven to move downward. When moving downward, the filter plate 20 drives the filter cloth 22 and the diaphragm 32 to move downward. When moving downward, the filter cloth 22 begins to press the sludge. Squeeze is generated, and the mud in the sludge cannot pass through the filter cloth 22, but the muddy water can pass through the filter cloth 22, and the membrane holes 9 on the diaphragm 32 further separate and filter the muddy water. In this process, mud will adhere to both surfaces of the filter cloth 22, and the sewage will enter the fixed pipe 5 through the membrane holes 9. In the early stage of filter pressing, the amount of mud attached to the surface of the filter cloth 22 and the diaphragm 32 is small, so the water permeability of the surface of the filter cloth 22 and the diaphragm 32 is better at this time, thereby making the flow rate of sewage entering the fixed pipe 5 larger in the early stage of filter pressing;

[0041] When the sewage flow in the fixed pipe 5 is large, the sewage cannot flow quickly into the collection pipeline from the connecting pipe 6. At this time, part of the sewage will enter the second interface 17 from the first interface 19, and then enter the hollow cylinder 7 from the second interface 17, and generate an upward thrust on the piston 15, so that the piston 15 moves upward in the hollow cylinder 7, thereby making the reset spring 16 in an elongated state and accumulating elastic potential energy. When the sewage flow in the fixed pipe 5 decreases, the sewage buoyancy on the piston 15 decreases, and the elastic potential energy of the reset spring 16 is released and drives the piston 15 to move downward, so that the piston 15 drives the telescopic rod 18 to move downward. When the telescopic rod 18 moves downward, it will drive the rectangular frame 10 to swing downward, thereby making the two fixed arms 14 swing upward and downward respectively, so that the two clamping strips 13 can pull the filter cloth 22 to move. When the filter cloth 22 moves, the mouth edge of the strip groove will scrape the mud on the two surfaces of the filter cloth 22;

[0042] When the rectangular frame 10 swings downward, the sliding pin 30 on the floating rod 11 slides in the waist-shaped hole 31 of the fixed arm 14, and the floating rod 11 slides in the sliding hole of the rotating column 12. When sliding, the ball 33 rolls in the spiral rolling groove 34. During the rolling process, since the floating rod 11 cannot rotate, the rotating column 12 rotates on the filter plate 20. During the rotation process, the fixed ring is driven to rotate. When the fixed ring rotates, the protrusion 26 will contact the inner wall of the side of the floating frame 27 away from the end of the filter cloth 22, and generate a thrust on the floating frame 27, so that the floating frame 27 moves toward the fixed pipe 5. The floating frame 27 compresses the driving spring 25, which is compressed and accumulates elastic potential energy. When the protrusion 26 is out of contact with the surface of the floating frame 27, the elastic potential energy accumulated in the driving spring 25 is released, thereby driving the floating frame 27 to move in the opposite direction, so that the floating frame 27 drives the slapping plate 29 to move rapidly toward the end of the filter cloth 22, so that the slapping plate 29 produces a slapping effect on the surface of the filter cloth 22, thereby causing the mud on the surface of the filter cloth 22 to be quickly slapped off, thereby preventing the mud from drying out after dehydration and affecting the permeability of the filter cloth 22. In addition, the mud and water on the surface of the filter cloth 22 can also be slapped off.

[0043] When the sludge is filtered to a certain extent, the telescopic rod of the hydraulic cylinder 1 is extended to drive the filter plate 20 to move upward and reset, and then the cover of the mud discharge port 8 is opened, so that the sludge can fall from the mud discharge port 8 for collection.

[0044] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0045] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0046] Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A filter press for sludge treatment, comprising a filter press chamber (4) mounted on a bracket, wherein a baffle (3) is connected to the bottom of the filter press chamber (4), characterized in that: Also includes: A filter plate (20) engaged in the filter press bin (4), the filter plate (20) freely sliding vertically in the filter press bin (4), a concave diaphragm mounting groove being provided on the lower surface of the filter plate (20), a diaphragm (32) being installed in the diaphragm mounting groove; A fixed tube (5) vertically fixed to the upper surface of the filter plate (20), the interior of the fixed tube (5) being in communication with the interior of the diaphragm mounting groove; A rectangular frame (10) is rotatably connected to the periphery of the fixed tube (5), and the two ends of the rectangular frame (10) are respectively fixedly connected with a fixed arm (14), and one end of the fixed arm (14) away from the rectangular frame (10) is hingedly connected with a clamping strip (13), and the two clamping strips (13) are jointly mounted with a filter cloth (22), and the filter plate (20) is provided with a strip-shaped through groove for the two ends of the filter cloth (22) to freely pass through, and the two ends of the filter cloth (22) are respectively passed through the two strip-shaped through grooves and are respectively connected to the two clamping strips (13), and the surface of the filter cloth (22) is in contact with the lower surface of the diaphragm (32); A driving unit is arranged on the fixed tube (5), and is used to drive the rectangular frame (10) to swing up and down along a rotation fulcrum of the rectangular frame (10) on the fixed tube (5).

2. The filter press for sludge treatment according to claim 1, characterized in that: A mud discharge port (8) is provided in the middle of the baffle (3).

3. The filter press for sludge treatment according to claim 2, characterized in that: At least one hydraulic cylinder (1) is vertically mounted on the lower surface of the baffle (3); a telescopic rod of the hydraulic cylinder (1) penetrates the baffle (3) and is drivingly connected to the filter plate (20).

4. The filter press for sludge treatment according to claim 3, characterized in that: A water inlet (2) is provided on one side surface of the filter press bin (4).

5. The filter press for sludge treatment according to claim 4, characterized in that: The driving unit comprises a hollow cylinder (7) hinged to the upper end of the fixed tube (5); a telescopic rod (18) is coaxially passed through the lower end of the hollow cylinder (7); the telescopic rod (18) slides freely on the hollow cylinder (7); one end of the telescopic rod (18) passing through the hollow cylinder (7) is hinged to the upper side of the rectangular frame (10); the other end of the telescopic rod (18) is coaxially fixedly connected to a piston (15); the piston (15) slides freely in the hollow cylinder (7); a first interface (19) is provided on the outer wall of the fixed tube (5); a second interface (17) is provided on the outer wall of the hollow cylinder (7); the first interface (19) and the second interface (17) are connected via a pipeline.

6. The filter press for sludge treatment according to claim 5, characterized in that: A return tension spring (16) is installed in the hollow cylinder (7). The return tension spring (16) is wrapped around the telescopic rod (18), and its two ends in the elastic force direction are fixedly connected to the piston (15) and the inner bottom wall of the hollow cylinder (7) in a one-to-one correspondence.

7. The filter press for sludge treatment according to claim 6, characterized in that: The upper surface of the filter plate (20) is provided with two beating units, the two beating units respectively corresponding to the two ends of the filter cloth (22), the beating units include a mounting block (23) connected to the upper surface of the filter plate (20), a sliding rod (24) is horizontally penetrated on the mounting block (23), the sliding rod (24) slides freely on the mounting block (23), the end of the sliding rod (24) away from the mounting block (23) is connected to a beating plate (29), and the fixed arm (14) is provided with a reciprocating movement mechanism for driving the sliding rod (24) to move horizontally.

8. The filter press for sludge treatment according to claim 7, characterized in that: The reciprocating mechanism comprises a rotating column (12) vertically rotatably connected to the top of the filter plate (20), a floating frame (27) is fixedly connected to the end of the sliding rod (24), the rotating column (12) is located in a hollow portion of the floating frame (27), a connecting rod (28) is fixedly connected to the outer wall of the floating frame (27) on one side away from the sliding rod (24), the beating plate (29) is connected to the end of the connecting rod (28), a transverse movement component for driving the floating frame (27) to reciprocate horizontally is provided on the rotating column (12), and a rotating component for driving the rotating column (12) to rotate is provided on the fixed arm (14).

9. The filter press for sludge treatment according to claim 8, characterized in that: The transverse movement assembly includes a fixed ring sleeved on the rotating column (12), a protrusion (26) is fixedly connected to the periphery of the fixed ring, and the protrusion (26) is in contact with the inner wall of the floating frame (27). A driving spring (25) is sleeved on the sliding rod (24), and the two ends of the driving spring (25) in the elastic force direction elastically press against the floating frame (27) and the mounting block (23) respectively and one by one.

10. The filter press for sludge treatment according to claim 9, characterized in that: The rotating assembly includes a floating rod (11) coaxially inserted on the rotating column (12), a sliding pin (30) is fixedly connected to the upper end of the floating rod (11), the fixed arm (14) is provided with a waist-shaped hole (31) for the sliding pin (30) to be inserted, the sliding pin (30) slides freely in the waist-shaped hole (31), the rotating column (12) is coaxially provided with a sliding hole for the floating rod (11) to pass freely, a ball (33) is rotatably embedded at the lower end of the floating rod (11), the inner wall of the sliding hole is provided with a spiral rolling groove (34) for the ball (33) to be engaged, and the ball (33) rolls freely in the spiral rolling groove (34).

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