An ultra-high pressure high-efficiency plate-and-frame filter press

By introducing a connecting rod and cam pusher plate structure into the plate and frame filter press, automatic cleaning of the filter cake is achieved, solving the problems of tedious and labor-intensive filter cake cleaning in the existing technology, and improving cleaning efficiency and safety.

CN224485082UActive Publication Date: 2026-07-14IPTOP (GUANGZHOU) ENVIRONMENTAL PROTECTION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
IPTOP (GUANGZHOU) ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-06-23
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing plate and frame filter presses are cumbersome, labor-intensive, and inefficient in cleaning filter cake, and pose safety hazards.

Method used

Design an ultra-high pressure, high-efficiency plate and frame filter press. By setting connecting rods and rotating shafts on the side walls of the plate and frame, and utilizing the cooperation of cams and push plates, the filter cake can be automatically cleaned, reducing manual intervention.

Benefits of technology

It improves filter cake cleaning efficiency, reduces the labor intensity and safety risks for workers, and enhances the automation level of the equipment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224485082U_ABST
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Abstract

The utility model discloses a kind of ultra-high pressure high-efficiency plate-and-frame filter press, relating to plate-and-frame filter press field, including frame and plate frame, the plate frame is provided with array, and its plate frame is located in the inside of frame and is slidably arranged, the side wall of plate frame is all connected with connecting rod, wherein one end of connecting rod is provided with rotating shaft, the rotating shaft is penetrated to the inner wall of plate frame, the outer wall of rotating shaft is equipped with cam, and the inner wall of plate frame is elastically provided with the push plate matched with cam. The utility model when plate frame is in filter pressing state, the cam of one end of rotating shaft will not contact with push plate, when plate frame opens after filter pressing is completed, connecting rod will drive cam to rotate by certain angle, so that cam pressurizes the push plate on one side, realizes to clean filter cake under the action of push plate, without manual cleaning in this process, improve overall cleaning efficiency, and reduce the work burden of staff.
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Description

Technical Field

[0001] This utility model relates to the field of plate and frame filter presses, specifically an ultra-high pressure and high efficiency plate and frame filter press. Background Technology

[0002] Plate and frame filter presses are widely used equipment for solid-liquid separation, commonly used in industries such as wastewater treatment, mineral processing, chemical, food, and pharmaceutical. They utilize a combination of filter plates, filter frames, and filter cloth, and use pressure to effectively separate solid substances from liquids, ultimately obtaining a clear liquid and filter cake. They mainly consist of filter plates, filter frames, filter cloth, hydraulic system, drain pipe, hydraulic device, and feeding system.

[0003] After the existing plate and frame filter press has finished pressing, the filter cake inside the plate and frame needs to be cleaned manually by the staff. This process is quite tedious, especially when dealing with large filter cakes. The labor intensity is too high, the efficiency of manual cleaning is relatively low, and there are also certain safety hazards.

[0004] In summary, the above-mentioned structure is quite cumbersome when cleaning the filter cake inside the plate frame, especially when dealing with large filter cakes. The labor intensity is too high, the efficiency of manual cleaning is relatively low, and there are certain safety hazards. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide an ultra-high pressure and high efficiency plate and frame filter press to solve the technical problems of being relatively cumbersome, especially when dealing with large filter cakes, resulting in excessive labor intensity, relatively low efficiency of manual cleaning, and certain safety hazards.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an ultra-high pressure and high efficiency plate and frame filter press, comprising a frame and plate frames, wherein the plate frames are provided with an array of arrays, and the plate frames are slidably disposed inside the frame. The side walls of the plate frames are all connected with connecting rods, wherein one end of the connecting rod is provided with a rotating shaft, the rotating shaft passes through to the inner wall of the plate frame, the outer wall of the rotating shaft is fitted with a cam, and a push plate that cooperates with the cam is elastically disposed on the inner wall of the plate frame.

[0007] By adopting the above technical solution, when the plate and frame are in the filter press state, the cam at one end of the rotating shaft will not contact the push plate. When the plate and frame are opened after the filter press is completed, the connecting rod will drive the cam to rotate at a certain angle, so that the cam applies pressure to the push plate on one side. Under the action of the push plate, the filter cake is cleaned. In this process, there is no need for manual cleaning, which improves the overall cleaning efficiency and reduces the workload of the staff.

[0008] The present invention is further configured such that a liquid inlet is provided on one side of the frame, and a liquid outlet is provided on the side wall of the plate frame.

[0009] Preferably, after the plates and frames are pressed together by the liquid inlet, wastewater can be injected into the interior to complete the pressure filtration. During the pressure filtration process, the filtered liquid will be discharged out through the liquid outlet.

[0010] The present invention is further configured such that the inner wall of the plate frame is provided with an inner groove, wherein an elastic component is installed in the inner groove, and one end of the elastic component is connected to the push plate.

[0011] Preferably, when the cam pushes it to one side, the internal filter cake will also fall down. Under the subsequent reset action, the push plate is reset to the inner wall of the inner groove by the action of the elastic component, ensuring the sealing between the subsequent plates and frames. At the same time, it can limit the filter cake generated during the filter pressing process to the inner groove, effectively preventing sludge splashing during the filter pressing process.

[0012] The present invention is further configured such that a driving component is provided on the inner wall of the frame, the driving component being located on a driving guide post, the driving guide post being used to drive the plate frame to reciprocate and slide.

[0013] Preferably, the guide post can be driven to slide the plate frame on the inner wall of the frame, and the connecting rod on one side of the plate frame can be used to make the spacing between the plates frame consistent.

[0014] The present invention is further configured such that a cam groove for rotating the cam is provided in the plate frame, and one side of the cam groove is connected to the inner groove.

[0015] Preferably, the cam groove facilitates the cam's rotation within the plate frame, allowing it to follow the rotating shaft. Furthermore, the interconnected design allows the cam's protrusion to press and push against the inner wall of the push plate during rotation.

[0016] The present invention is further configured such that one end of the liquid inlet and the liquid outlet are respectively sealed to the frame and the plate frame.

[0017] Preferably, the sealed design prevents leakage of liquid from the plate frame during the injection and drainage process, further improving the overall practicality of the device.

[0018] The present invention is further provided that the outer wall of the plate frame is provided with a sealing sleeve.

[0019] Preferably, the sealing sleeve ensures that the plates and frames form a sealed chamber with each other during the merging process driven by the guide post.

[0020] The present invention is further provided that one end of the cam is provided with an arc-shaped end face, and the arc-shaped end face is smooth.

[0021] Preferably, its arc-shaped end face prevents the cam from jamming during the rotation of the cam following the shaft, further improving the overall practicality of the device.

[0022] In summary, the present invention has the following main advantages:

[0023] This invention features a connecting rod on the side wall of the plate frame. Under the action of the connecting rod, the plate frame slides synchronously via the drive guide post, ensuring that the initial pressure between the plate frames is the same. Simultaneously, one end of the connecting rod is connected to a rotating shaft that extends into the plate frame. When the plate frame is in the filter pressing state, the cam at one end of the rotating shaft will not contact the push plate. When the filter pressing is completed and the plate frame opens, the connecting rod drives the cam to rotate at a certain angle, causing the cam to pressurize the push plate on one side. Under the action of the push plate, the filter cake is cleaned. This process eliminates the need for manual cleaning, improving overall cleaning efficiency and reducing the workload of workers. Attached Figure Description

[0024] Figure 1 This is a perspective view of the present utility model;

[0025] Figure 2 This is a top view of the present invention;

[0026] Figure 3 This is a schematic diagram of the plate and frame structure of this utility model;

[0027] Figure 4 This is a sectional view of the plate frame of this utility model;

[0028] Figure 5 This utility model Figure 4 A magnified view of A in the middle.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Frame; 2. Drive guide post; 3. Connecting rod; 4. Outlet; 5. Plate frame; 6. Inlet; 7. Push plate; 8. Inner groove; 9. Elastic component; 10. Rotating shaft; 11. Cam; 12. Cam groove. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] The embodiments of this utility model will be described below based on its overall structure.

[0033] First embodiment:

[0034] Please see Figures 1-5 The ultra-high pressure, high-efficiency plate and frame filter press shown includes a frame 1, plates and frames 5, a drive mechanism, a sealing mechanism, and a filter pressing mechanism. The operator inserts filter cloth between each set of plates and frames 5, then drives the drive guide column 2 within the frame 1. Under the action of the drive guide column 2, the plates and frames 5 slide to one side, forming a sealed chamber between each set of plates and frames 5. Because a connecting rod 3 is provided on one side of each plate and frame 5, the spacing between the plates and frames 5 remains consistent during the sliding process, further improving the sealing performance. Simultaneously, a liquid inlet 6 is provided on one side of the frame 1, through which the operator injects wastewater into the plates and frames 5. The drive guide column 2 then continues to drive the plates and frames 5 to slide and pressurize, thus improving the sealing performance. Wastewater is injected for filter pressing. After filter pressing, the drive guide column 2 drives the plate frame 5 to slide to one side. At this time, the distance between the plate frames 5 is unified by the connecting rod 3. Since one end of the connecting rod 3 is provided with a rotating shaft 10, which passes through the inner wall of the plate frame 5, a cam 11 is sleeved on the outer wall of the rotating shaft 10, and a push plate 7 that cooperates with the cam 11 is elastically provided on the inner wall of the plate frame 5. When the plate frame 5 is opened after filter pressing, the connecting rod 3 will drive the cam 11 to rotate at a certain angle, so that the cam 11 pressurizes the push plate 7 on one side. Under the action of the push plate 7, the filter cake is cleaned. In this process, no manual cleaning is required, which improves the overall cleaning efficiency and reduces the workload of the staff.

[0035] For details regarding the above embodiments, please refer to [link / reference]. Figure 5 The plate frame 5 has a cam groove 12 for the cam 11 to rotate. One side of the cam groove 12 is connected to the inner groove 8. The cam groove 12 facilitates the cam 11 to rotate with the rotating shaft 10 when it is located in the plate frame 5. The connected arrangement facilitates the cam 11 to squeeze and push the inner wall of the push plate 7 through its protrusion during the rotation process.

[0036] Second embodiment:

[0037] Please see Figure 4 The ultra-high pressure and high efficiency plate and frame filter press shown has an overall structure similar to that of Embodiment 1. The inner wall of the plate and frame 5 is provided with an inner groove 8, and an elastic component 9 is installed in the inner groove 8. One end of the elastic component 9 is connected to the push plate 7. When the cam 11 pushes it to one side, the filter cake inside will also be pushed down. Under the subsequent reset action, the push plate 7 is reset to the inner wall of the inner groove 8 by the action of the elastic component 9, ensuring the sealing between the plates and frames 5. At the same time, it can limit the filter cake generated during the filtration process to the inner groove 8, effectively preventing sludge splashing during the filtration process.

[0038] In practical operation, the present invention works as follows: During use, the operator places the filter cloth between the various plate frames 5, and then drives the guide post 2 to slide the plate frames 5 to one side. During this process, the connecting rod 3 on one side of the plate frame 5 is in a retracted state. Subsequently, when a sealed chamber is formed between the various plate frames 5, wastewater is discharged into the chamber through the inlet 6, and pressure is further applied to the plate frames 5. During this process, the filtered liquid is discharged through the outlet 4 on one side of the plate frame 5. After the filtration is completed, the guide post 2 drives the plate frames 5 to open. At this time, the connecting rod 3 drives the rotating shaft 10 to rotate. During this process, the rotating shaft 10 drives the cam 11 to squeeze the push plate 7 on the inner wall of the plate frame 5, causing the push plate 7 to squeeze out the filter cake inside the plate frame 5, improving the overall cleaning efficiency, reducing the workload of the operator, and further accelerating the overall filtration efficiency.

[0039] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A high-pressure, high-efficiency plate and frame filter press, comprising a frame (1) and plate frames (5), wherein the plate frames (5) are provided with an array, and the plate frames (5) are slidably disposed inside the frame (1), characterized in that: The side walls of the plate frame (5) are all connected to connecting rods (3), one end of which is provided with a rotating shaft (10). The rotating shaft (10) extends through to the inner wall of the plate frame (5). A cam (11) is sleeved on the outer wall of the rotating shaft (10), and a push plate (7) that cooperates with the cam (11) is elastically provided on the inner wall of the plate frame (5).

2. The ultra-high pressure, high-efficiency plate and frame filter press according to claim 1, characterized in that: The frame (1) is provided with an inlet (6) on one side, and the plate frame (5) is provided with an outlet (4) on the side wall.

3. The ultra-high pressure, high-efficiency plate and frame filter press according to claim 1, characterized in that: The inner wall of the plate frame (5) is provided with an inner groove (8), in which an elastic component (9) is installed, and one end of the elastic component (9) is connected to the push plate (7).

4. The ultra-high pressure, high-efficiency plate and frame filter press according to claim 1, characterized in that: The inner wall of the frame (1) is provided with a driving component, which is located on the driving guide post (2). The driving guide post (2) is used to drive the plate frame (5) to slide back and forth.

5. The ultra-high pressure, high-efficiency plate and frame filter press according to claim 3, characterized in that: The plate frame (5) has a cam groove (12) for the cam (11) to rotate, and one side of the cam groove (12) is connected to the inner groove (8).

6. The ultra-high pressure, high-efficiency plate and frame filter press according to claim 2, characterized in that: The inlet (6) and outlet (4) are respectively sealed to the frame (1) and plate frame (5).

7. The ultra-high pressure, high-efficiency plate and frame filter press according to claim 1, characterized in that: The outer wall of the plate frame (5) is provided with a sealing sleeve.

8. The ultra-high pressure, high-efficiency plate and frame filter press according to claim 5, characterized in that: One end of the cam (11) is provided with an arc-shaped end face, which is smooth.