Sludge filter pressing device for ceramic material environmental protection

By introducing installation and connection mechanisms into the sludge filter press, automated cleaning of the inner wall sludge is achieved, solving the tedious cleaning problem caused by sludge adhesion and improving treatment efficiency and environmental protection.

CN223705453UActive Publication Date: 2025-12-23SHANDONG DECI SEMICONDUCTOR NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202520022209.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-06
Publication Date
2025-12-23
Estimated Expiration
2035-01-06

AI Technical Summary

Technical Problem

After use, existing sludge filter presses tend to leave sludge adhering to the inner wall of the filter press shell, making cleaning tedious and time-consuming, and reducing processing efficiency.

Method used

A ceramic material environmental sludge depressurization filter device was designed. By setting up an installation mechanism including a motor, threaded rod, hydraulic cylinder and brush plate, the device can automatically clean the sludge on the inner wall. Combined with the connection mechanism, the filter shell can be opened and closed automatically, reducing manual intervention.

Benefits of technology

It has enabled automated cleaning of the inner wall of the sludge filter press, reducing operational difficulty and time, improving the efficiency of the sludge treatment process, reducing environmental impact, and protecting the ecological environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sludge filter pressing device for ceramic material environmental protection, and relates to the technical field of sludge filter pressing devices. The device comprises a mounting shell, a threaded rod is rotationally connected to the left side of the inner wall of the mounting shell, the device further comprises a mounting mechanism, then a first filter pressing cover shell continues to be started to drive two brush plates to move to a plurality of filter pressing shell gaps, and then the operation is repeated to clean the inner wall of the filter pressing shell; through the operation, automatic cleaning of the inner wall of the filter pressing shell is achieved, the operation difficulty is reduced, the operation time is shortened, the device can complete cleaning work of a plurality of sludge attached areas in the device in a short time, the efficiency of the whole sludge treatment process is improved, the production efficiency of ceramic materials can be improved, and the production cost is reduced. Meanwhile, the sludge is effectively treated, so that the influence of emission on the environment is reduced, a good environment-friendly effect is also realized, and the ecological environment is favorably protected.
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Description

Technical Field

[0001] This utility model belongs to the technical field of sludge depressurization devices, and in particular relates to a sludge depressurization device for environmental protection using ceramic materials. Background Technology

[0002] A filter press is a device that separates solids and liquids by applying pressure. It typically consists of multiple filter plates and filter frames forming a filter chamber. In the treatment of sludge for environmental protection using ceramic materials, it is used to efficiently reduce the volume and moisture content of sludge, thereby reducing sludge discharge and achieving good environmental protection results. This helps protect the ecological environment and realize resource recycling.

[0003] After the existing sludge filter press is used, residual sludge will adhere to the inner wall of the filter press shell, which requires the operator to clean the inner wall. However, this operation is cumbersome and takes a lot of time, resulting in a decrease in the overall processing efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a sludge filter press device for environmental protection using ceramic materials. By setting up an installation mechanism, it solves the problem that after the existing sludge filter press device is used, residual sludge will adhere to the inner wall of the filter press shell, and then the operator needs to clean the inner wall. However, this operation is cumbersome and consumes a lot of working time, which leads to a reduction in the overall processing efficiency.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a sludge dewatering device for environmental protection using ceramic materials. It includes a mounting shell, with a threaded rod rotatably connected to the left side of the inner wall of the mounting shell. It also includes a mounting mechanism, comprising a motor fixedly connected to the right side of the inner wall of the mounting shell. The output end of the motor is fixedly connected to the right end of the threaded rod via a coupling. A sliding shell is threaded onto the outer wall of the threaded rod, and the outer wall of the sliding shell is slidably connected to the inner wall of the mounting shell. Two telescopic rods are fixedly connected to the inner wall of the sliding shell, and a connecting shell is fixedly connected to the output ends of the two telescopic rods. Brush plates are fixedly connected to the left and right sides of the connecting shell. Two fixing rods are fixedly connected to the inner wall of the sliding shell. Two limiting rods are fixedly connected to the inner wall of the connecting shell. Two drag shells are slidably connected to the outer walls of the two fixing rods. The two drag shells are symmetrically arranged about the mounting shell as a central axis, and their outer walls are slidably connected to the inner wall of the sliding shell. A first hydraulic cylinder is fixedly connected to the left side of the sliding shell, and its output end is fixedly connected to the front side of the rear drag shell. Two pull shells are slidably connected to the outer walls of the two limiting rods.

[0007] Furthermore, the two pull-out shells are symmetrically arranged about the mounting shell as the central axis. The inner wall of the front pull-out shell and the inner wall of the right pull-out shell are rotatably connected by a first connecting plate, and the inner wall of the rear pull-out shell and the inner wall of the front pull-out shell are rotatably connected by a second connecting plate. The right side of the first connecting plate and the left side of the second connecting plate are hinged together.

[0008] Furthermore, the inner wall of the mounting housing is provided with a connecting mechanism, the connecting mechanism including a first filter press cover that is slidably connected to the inner wall of the mounting housing.

[0009] Furthermore, a second filter press cover is slidably connected to the inner wall of the mounting shell, and a plurality of filter press covers are slidably connected to the inner wall of the mounting shell.

[0010] Furthermore, the outer walls of several filter press shells are in contact with the outer walls of the first filter press cover shell and the second filter press cover shell, and the first filter press cover shell and the second filter press cover shell are hinged to the front and rear sides of the several filter press shells with first pull plates.

[0011] Furthermore, the front and rear sides of the mounting shell are provided with a plurality of second pull plates, and the outer walls of the plurality of second pull plates are hinged to the outer walls of the plurality of first pull plates.

[0012] Furthermore, a second hydraulic cylinder is fixedly connected to the right side of the inner wall of the mounting shell, and a fixing shell is fixedly connected to the right side of the second filter press cover shell.

[0013] Furthermore, the output end of the second hydraulic cylinder is fixedly connected to the right side of the fixed shell, and the right side of the second filter press cover is connected to and fixedly connected to a connecting pipe, the other end of which extends to the outside of the fixed shell.

[0014] This utility model has the following beneficial effects:

[0015] 1. By setting up an installation mechanism, the second filter press cover and several filter press shells are first pulled apart sequentially through the connecting mechanism. Then, the motor is started to drive the threaded rod to rotate. The threaded rod drives the sliding shell, two telescopic rods, connecting shell, and two brush plates to move to the middle of the first filter press cover and filter press shells. Then, the first hydraulic cylinder is started to move forward. The first hydraulic cylinder then drives the rear sliding shell and the second connecting plate to slide on the outer wall of the two fixed rods and move forward. Then, the second connecting plate drives the first connecting plate to rotate and move forward. Then, the first connecting plate drives the rear sliding shell to slide forward on the outer wall of the two limit rods. After that, the rear sliding shell drives the connecting shell, two brush plates, and two telescopic rods to slide downward. Then, the two brush plates move downward to scrape and clean the inner wall of the first filter press cover and filter press shells. The process involves reversing the first hydraulic cylinder to reset the two brush plates, and then repeating the above operation to clean the sludge adhering to the inner wall of the first filter press cover and the filter press shell. Then, the first filter press cover is activated again to move the two brush plates to several gaps in the filter press shells, and the above operation is repeated to clean their inner walls. This automated cleaning of the filter press shell's inner wall reduces operational difficulty and time, allowing the device to complete the cleaning of multiple sludge-adhered areas within the device in a shorter time. This improves the efficiency of the entire sludge treatment process, thereby increasing the production efficiency of ceramic materials. Furthermore, the effective treatment of sludge not only reduces the environmental impact of emissions but also achieves good environmental protection results, contributing to the protection of the ecological environment.

[0016] 2. By setting up a connecting mechanism, the sludge is first introduced into the first and second filter press covers and several filter press shells through the connecting pipe for filtration. After completion, the second hydraulic cylinder is activated. The second hydraulic cylinder drives the fixed shell and connecting pipe to slide to the right along the inner wall of the mounting shell. Then, the second filter press cover drives the first and second pull plates to pull the filter press shells to the right. Then, several second pull plates pull several first pull plates to the right, causing several filter press shells to open and arrange in sequence. During this process, the filtered sludge falls from the first and second filter press covers and the inside of the filter press shells. Some sludge remains attached to the inner wall. The inner wall is then cleaned by the mounting mechanism. The above operation can promote the rapid discharge of sludge from the inside of the device, reduce sludge residue, reduce manual intervention by workers, reduce the workload of workers, and improve the overall processing efficiency.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall partial cross-sectional structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the installation mechanism structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection mechanism of this utility model;

[0023] Figure 5 for Figure 4 A magnified structural diagram of point A in the middle.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Mounting shell; 11. Threaded rod; 2. Mounting mechanism; 21. Motor; 22. Sliding shell; 23. Telescopic rod; 24. Connecting shell; 25. Brush plate; 26. Fixing rod; 27. Limiting rod; 28. Dragging shell; 29. ​​First hydraulic cylinder; 210. Pulling shell; 211. First connecting plate; 212. Second connecting plate; 3. Connecting mechanism; 31. First filter press cover shell; 32. Second filter press cover shell; 33. Filter press shell; 34. First pulling plate; 35. Second pulling plate; 36. Second hydraulic cylinder; 37. Fixing shell; 38. Connecting pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 As shown, this utility model is a sludge depressurization device for environmental protection using ceramic materials, including a mounting shell 1, a threaded rod 11 rotatably connected to the left side of the inner wall of the mounting shell 1, and also includes;

[0028] Mounting mechanism 2 includes a motor 21 fixedly connected to the right side of the inner wall of mounting housing 1. The output end of motor 21 is fixedly connected to the right end of threaded rod 11 via a coupling. A sliding shell 22 is threadedly fitted onto the outer wall of threaded rod 11. The outer wall of sliding shell 22 is slidably connected to the inner wall of mounting housing 1. Two telescopic rods 23 are fixedly connected to the inner wall of sliding shell 22. A connecting shell 24 is fixedly connected to the output end of the two telescopic rods 23. Brush plates 25 are fixedly connected to the left and right sides of connecting shell 24. Two fixing rods 26 are fixedly connected to the inner wall of sliding shell 22. Two limiting rods 27 are fixedly connected to the inner wall of connecting shell 24. Two drag shells 28 are slidably connected to the outer walls of the two fixing rods 26. The two drag shells 28 are symmetrically arranged about mounting housing 1 as the central axis. The outer walls of both drag shells 28 are slidably connected to the inner wall of sliding shell 22. A first hydraulic cylinder 2 is fixedly connected to the left side of sliding shell 22. 9. The output end of the first hydraulic cylinder 29 is fixedly connected to the front side of the rear drag shell 28. Two pull shells 210 are slidably connected to the outer walls of the two limit rods 27. First, the second filter press cover shell 32 and several filter press shells 33 are pulled apart in sequence through the connecting mechanism 3. Then, the motor 21 is started to drive the threaded rod 11 to rotate. The threaded rod 11 drives the sliding shell 22 and the two telescopic rods 23 to move the connecting shell 24 and the two brush plates 25 to the middle of the first filter press cover shell 31 and the filter press shell 33. Then, the first hydraulic cylinder 29 is started to move forward. Then, the first hydraulic cylinder 29 drives the rear drag shell 28 and the second connecting plate 212 to slide on the outer walls of the two fixed rods 26 and move forward. Then, the second connecting plate 212 drives the first connecting plate 211 to rotate and move forward. Then, the first connecting plate 211 drives the rear pull shell 210 to slide forward on the outer walls of the two limit rods 27.

[0029] Two pull-out shells 210 are symmetrically arranged about the mounting shell 1. A first connecting plate 211 is rotatably connected to the inner wall of the front pull-out shell 28 and the inner wall of the right pull-out shell 210. A second connecting plate 212 is rotatably connected to the inner wall of the rear pull-out shell 28 and the inner wall of the front pull-out shell 210. The right side of the first connecting plate 211 and the left side of the second connecting plate 212 are hinged. Then, the rear pull-out shell 210 drives the connecting shell 24, the two brush plates 25, and the two telescopic rods 23 to slide downward. Then, the two brush plates 25 move downward to scrape and clean the inner walls of the first filter press cover shell 31 and the filter press shell 33. Then, the first hydraulic cylinder 29 is activated in the reverse direction to drive the two brush plates 25 to reset. Then, the above operation is repeated in sequence. The system effectively cleans the sludge adhering to the inner walls of the first filter press cover 31 and the filter press shell 33. Then, the first filter press cover 31 is activated, moving the two brush plates 25 to the gaps between several filter press shells 33. This process is repeated to clean the inner walls of the filter press shells 33. This automated cleaning of the inner walls of the filter press shells 33 reduces operational difficulty and time, allowing the device to complete the cleaning of multiple sludge-adhering areas within the device in a shorter time. This improves the efficiency of the entire sludge treatment process, thereby increasing the production efficiency of ceramic materials. Furthermore, the effective treatment of sludge not only reduces the environmental impact of emissions but also achieves good environmental protection results, contributing to the protection of the ecological environment.

[0030] The inner wall of the mounting shell 1 is provided with a connecting mechanism 3. The connecting mechanism 3 includes a first filter press cover 31 that is slidably connected to the inner wall of the mounting shell 1. The sludge is first introduced into the first filter press cover 31, the second filter press cover 32 and several filter press shells 33 through the connecting pipe 38 for filter pressing. After completion, the second hydraulic cylinder 36 is started.

[0031] The inner wall of the mounting shell 1 is slidably connected to a second filter press cover shell 32, and the inner wall of the mounting shell 1 is slidably connected to several filter press shells 33. After completion, the second hydraulic cylinder 36 is started. The second hydraulic cylinder 36 drives the fixed shell 37 and the connecting pipe 38 to slide to the right along the inner wall of the mounting shell 1 with the second filter press cover shell 32.

[0032] The outer walls of several filter press shells 33 are in contact with the outer walls of the first filter press cover shell 31 and the second filter press cover shell 32. The first filter press cover shell 31 and the second filter press cover shell 32 are hinged to the front and rear sides of the several filter press shells 33 with first pull plates 34.

[0033] Several second pull plates 35 are provided on the front and rear sides of the mounting shell 1. The outer walls of the several second pull plates 35 are hinged to the outer walls of several first pull plates 34. The second hydraulic cylinder 36 drives the fixed shell 37 and the connecting pipe 38 to slide and move to the right on the inner wall of the mounting shell 1 with the second filter press cover shell 32. Then the second filter press cover shell 32 drives the first pull plates 34 and the second pull plates 35 to pull the filter press shell 33 to the right. Then the several second pull plates 35 pull the several first pull plates 34 to the right, so that the several filter press shells 33 open and are arranged in sequence. During this process, the filtered sludge falls from the inside of the first filter press cover shell 31, the second filter press cover shell 32 and the filter press shell 33.

[0034] A second hydraulic cylinder 36 is fixedly connected to the right side of the inner wall of the mounting shell 1, and a fixed shell 37 is fixedly connected to the right side of the second filter press cover shell 32. First, the sludge enters the first filter press cover shell 31, the second filter press cover shell 32, and several filter press shells 33 through the connecting pipe 38 for filter pressing. After completion, the second hydraulic cylinder 36 is started. The second hydraulic cylinder 36 drives the fixed shell 37 and the connecting pipe 38 to slide to the right along the inner wall of the mounting shell 1 with the second filter press cover shell 32. Then, the second filter press cover shell 32 drives the first pull plate 34 and the second pull plate 35 to pull the filter press shell 33 to the right. Then, several second pull plates 35 pull several first pull plates 34 to the right, so that several filter press shells 33 open and are arranged in sequence.

[0035] The output end of the second hydraulic cylinder 36 is fixedly connected to the right side of the fixed housing 37. The right side of the second filter press cover 32 is connected to and fixedly connected to the connecting pipe 38. The other end of the connecting pipe 38 extends to the outside of the fixed housing 37. During this process, the sludge after filtration falls from the inside of the first filter press cover 31, the second filter press cover 32 and the filter press housing 33. Some sludge remains attached to its inner wall. Then, the inner wall is cleaned by the installation mechanism 2. The above operation can promote the sludge to be discharged quickly from the inside of the device, reduce sludge residue, reduce manual intervention by the staff, reduce the workload of the staff, and improve the overall processing efficiency.

[0036] A specific application of this embodiment is as follows: When using this device, the second filter press cover 32 and several filter press shells 33 are first pulled apart sequentially by the connecting mechanism 3. Then, the motor 21 is started to drive the threaded rod 11 to rotate. The threaded rod 11 drives the sliding shell 22 and the two telescopic rods 23, the connecting shell 24, and the two brush plates 25 to move to the middle of the first filter press cover 31 and the filter press shell 33. Then, the first hydraulic cylinder 29 is started to move forward. Then, the first hydraulic cylinder 29 drives the rear side drag shell 28 and the second connecting plate 212 to slide on the outer wall of the two fixed rods 26 and move forward. Then, the second connecting plate 212 drives the first connecting plate 211 to rotate and move forward. Then, the first connecting plate 211 drives the rear side pull shell 210 to slide forward on the outer wall of the two limit rods 27. After that, the rear side pull shell 210 drives the connecting shell 24, the two brush plates 25, and the two telescopic rods 23 to slide downward. Then, the two brush plates The first hydraulic cylinder 29 moves downward to scrape and clean the inner walls of the first filter press cover 31 and the filter press shell 33. Then, the first hydraulic cylinder 29 is activated in reverse to reset the two brush plates 25. This process is repeated to clean the sludge adhering to the inner walls of the first filter press cover 31 and the filter press shell 33. The first filter press cover 31 is then activated again to move the two brush plates 25 to several gaps between the filter press shells 33. The process is repeated to clean the inner walls of the filter press shells 33. This automated cleaning of the inner walls of the filter press shells 33 reduces the difficulty and time of operation, allowing the device to complete the cleaning of multiple sludge-adhered areas within the device in a shorter time. This improves the efficiency of the entire sludge treatment process and, consequently, the production efficiency of ceramic materials. The effective treatment of sludge not only reduces the environmental impact of emissions but also achieves good environmental protection results, contributing to the protection of the ecological environment.

[0037] When using this device, the sludge is first introduced into the first filter press cover 31, the second filter press cover 32, and several filter press shells 33 through the connecting pipe 38 for filtration. After the filtration is completed, the second hydraulic cylinder 36 is activated. The second hydraulic cylinder 36 drives the fixed shell 37 and the connecting pipe 38 to slide to the right along the inner wall of the mounting shell 1 with the second filter press cover 32. Then, the second filter press cover 32 drives the first pull plate 34 and the second pull plate 35 to pull the filter press shells 33 to the right. Then, several second pull plates 35 pull several first pull plates 34 to the right, causing several filter press shells 33 to open and arrange in sequence. During this process, the sludge after filtration falls from the inside of the first filter press cover 31, the second filter press cover 32, and the filter press shells 33. Some sludge remains attached to the inner wall. The inner wall is then cleaned by the mounting mechanism 2. Through the above operation, the sludge can be quickly discharged from the inside of the device, reducing sludge residue. At the same time, it reduces manual intervention by the staff, reduces the workload of the staff, and improves the overall processing efficiency.

[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A sludge depressurization device for environmental protection using ceramic materials, comprising a mounting shell (1), wherein a threaded rod (11) is rotatably connected to the left side of the inner wall of the mounting shell (1), characterized in that: Also includes; The mounting mechanism (2) includes a motor (21) fixedly connected to the right side of the inner wall of the mounting housing (1). The output end of the motor (21) is fixedly connected to the right end of the threaded rod (11) via a coupling. A sliding shell (22) is threadedly fitted onto the outer wall of the threaded rod (11). The outer wall of the sliding shell (22) is slidably connected to the inner wall of the mounting housing (1). Two telescopic rods (23) are fixedly connected to the inner wall of the sliding shell (22). A connecting shell (24) is fixedly connected to the output ends of the two telescopic rods (23). Brush plates (25) are fixedly connected to the left and right sides of the connecting shell (24). The inner wall of the connecting shell (24) is fixedly connected to two fixed rods (26), and the inner wall of the connecting shell (24) is fixedly connected to two limiting rods (27). The outer walls of the two fixed rods (26) are slidably connected to two drag shells (28). The two drag shells (28) are symmetrically arranged with the mounting shell (1) as the central axis. The outer walls of the two drag shells (28) are slidably connected to the inner wall of the sliding shell (22). The left side of the sliding shell (22) is fixedly connected to a first hydraulic cylinder (29). The output end of the first hydraulic cylinder (29) is fixedly connected to the front side of the rear drag shell (28). The outer walls of the two limiting rods (27) are slidably connected to two pull shells (210).

2. The sludge depressurization device for environmental protection using ceramic materials according to claim 1, characterized in that, The two pull-out shells (210) are symmetrically arranged about the mounting shell (1) as the central axis. The inner wall of the front pull-out shell (28) and the inner wall of the right pull-out shell (210) are rotatably connected by a first connecting plate (211). The inner wall of the rear pull-out shell (28) and the inner wall of the front pull-out shell (210) are rotatably connected by a second connecting plate (212). The right side of the first connecting plate (211) and the left side of the second connecting plate (212) are hinged together.

3. The sludge depressurization device for environmental protection using ceramic materials according to claim 2, characterized in that, The inner wall of the mounting shell (1) is provided with a connecting mechanism (3), which includes a first filter press cover (31) that is slidably connected to the inner wall of the mounting shell (1).

4. The sludge depressurization device for environmental protection using ceramic materials according to claim 3, characterized in that, The inner wall of the mounting shell (1) is slidably connected to a second filter press cover (32), and the inner wall of the mounting shell (1) is slidably connected to a plurality of filter press covers (33).

5. A sludge depressurization device for environmental protection using ceramic materials according to claim 4, characterized in that, The outer walls of several filter press shells (33) are in contact with the outer walls of the first filter press cover shell (31) and the second filter press cover shell (32). The first filter press cover shell (31) and the second filter press cover shell (32) are hinged to the front and rear sides of the several filter press shells (33) with first pull plates (34).

6. The sludge depressurization device for environmental protection using ceramic materials according to claim 5, characterized in that, The mounting shell (1) is provided with a number of second pull plates (35) on both the front and rear sides, and the outer walls of the number of second pull plates (35) are hinged to the outer walls of the number of first pull plates (34).

7. A sludge depressurization device for environmental protection using ceramic materials according to claim 6, characterized in that, A second hydraulic cylinder (36) is fixedly connected to the right side of the inner wall of the mounting shell (1), and a fixing shell (37) is fixedly connected to the right side of the second filter press cover shell (32).

8. The sludge depressurization device for environmental protection using ceramic materials according to claim 7, characterized in that, The output end of the second hydraulic cylinder (36) is fixedly connected to the right side of the fixed shell (37), and the right side of the second filter press cover (32) is connected to and fixedly connected to a connecting pipe (38), the other end of which extends to the outside of the fixed shell (37).