Double-squeezing type filter pressing device

By designing a dual-press filter press, the combination of a screw conveyor filter press and a pull-out box, along with components such as a motor and slide rails, enables multiple pressings and uniform material distribution. This solves the problem of filter press instability under different material properties, thereby improving production stability and product quality.

CN224158935UActive Publication Date: 2026-04-24HEBEI JINGXIN FILTER PRESS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI JINGXIN FILTER PRESS CO LTD
Filing Date
2025-02-10
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing screw press filter devices suffer from insufficient pressing cycles when dealing with different material properties, resulting in unstable filtration effects, affecting the stability of subsequent processes and product quality, and increasing production risks.

Method used

Design a dual-press filter press device, which includes a screw conveyor filter press and a pull-out box. By combining the screw conveyor filter press and the pull-out box with components such as a motor, electric telescopic rod and slide rail, multiple pressing and uniform material distribution can be achieved, thereby improving the stability of the filter press.

Benefits of technology

By using multiple pressings and ensuring uniform material distribution, the stability of the pressure filtration process is improved, avoiding impacts on subsequent processes and production risks, and ensuring the stability of product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a double squeezing type filter pressing device, which belongs to the technical field of filter pressing devices and comprises a shell, a filter pressing structure is arranged on the inner wall of the shell, the filter pressing structure comprises an auger filter press mounted on the inner wall of the shell, the top wall of the auger filter press is communicated with a feeding pipe, and meshes are formed in the bottom wall of the auger filter press; an auxiliary structure is arranged on the inner wall of the shell. By arranging a filter pressing structure and a push plate, after materials are injected into an auger filter press, the auger filter press is started, solid materials flow out through a discharging port formed in the auger filter press, liquid materials flow to a drawing box through meshes formed in the auger filter press, meanwhile, a first motor, a second motor and an electric telescopic rod are started, and the materials are squeezed again; the stability of filter pressing treatment is effectively improved through multiple times of squeezing, so that the influence on the stability of the subsequent process and the product quality is effectively avoided, and the uncertainty and risk generated in the production process are effectively avoided.
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Description

Technical Field

[0001] This utility model relates to the field of filter press technology, and specifically to a dual-press filter press. Background Technology

[0002] A press filter press is a type of filter equipment that effectively removes moisture from raw materials through pressing. This type of device can achieve solid-liquid separation. The working principle of a press filter press mainly relies on the action of pressure. Press filter presses are widely used in applications requiring efficient solid-liquid separation, such as chemical, petroleum, food, pharmaceutical, and wastewater industries.

[0003] However, when using a screw press filter for pressing, the number of pressing cycles may be insufficient and the pressing effect may be unstable when the properties of the material are different, such as moisture content, viscosity, and particle size. This will affect the stability of subsequent processes and product quality, and increase the uncertainty and risk in the production process.

[0004] To address the aforementioned problems, this application proposes a dual-press filter press device. Utility Model Content

[0005] This utility model addresses the technical problems existing in the prior art by providing a dual-press filter press device.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A double-pressing filter press device includes a shell, and a filter press structure is provided on the inner wall of the shell. The filter press structure includes an auger filter press installed on the inner wall of the shell. The top wall of the auger filter press is connected to a feed pipe, and the bottom wall of the auger filter press is provided with a mesh.

[0007] The inner wall of the outer shell is provided with an auxiliary structure;

[0008] The auxiliary structure includes a connector installed on the inner wall of the outer shell. The connector is located below the screw conveyor filter press. A pull-out box is inserted into the inner wall of the connector. The bottom wall of the pull-out box has a filter hole. The bottom wall of the outer shell is connected to a water outlet pipe, which is located below the pull-out box.

[0009] The screw press has a discharge port at the end away from the feed pipe. The inner wall of the outer shell is provided with a pressure block. The outer wall of the pressure block is close to the discharge port of the outer shell. By setting the pressure block, the pressing effect is effectively improved.

[0010] An electric telescopic rod is movably connected to the inner wall of the outer shell. The output end of the electric telescopic rod is fixedly connected to the outer wall of the pressing block. By setting the electric telescopic rod, the pressing effect is further improved.

[0011] A fixing plate is installed on one side of the outer shell adjacent to the electric telescopic rod. A first motor is installed on the side of the fixing plate away from the outer shell. The output end of the first motor is fixedly connected to the outer wall of the electric telescopic rod. By setting the first motor, the pressing effect is further improved.

[0012] A second motor is installed on the outer wall of the pull-out box. A threaded rod is installed on the output end of the second motor. The end of the threaded rod away from the second motor is rotatably connected to the inner wall of the pull-out box. A push plate is threadedly connected to the outer wall of the threaded rod. The outer wall of the push plate is slidably connected to the inner wall of the pull-out box. By setting the threaded rod, a certain amount of filtration is performed.

[0013] The top wall of the connector is equipped with an electric slide rail, and the slider of the electric slide rail is equipped with a connecting plate. The connecting plate is located above the pull-out box. By setting the electric slide rail, the height of impurities can be effectively limited.

[0014] The beneficial effects of this utility model are:

[0015] By setting up a filter press structure and push plate, the material is injected into the screw conveyor filter press. After the screw conveyor filter press is started, the solid material flows out through the discharge port of the screw conveyor filter press, and the liquid material flows into the pull box through the mesh of the screw conveyor filter press. At the same time, the first and second motors and the electric telescopic rod are started to press the material again. Through multiple pressing, the stability of the filter press process is effectively improved, thereby effectively avoiding the impact on the stability of subsequent processes and product quality, and effectively avoiding the uncertainties and risks generated in the production process.

[0016] By setting up an electric slide rail, the connecting plate can be moved and the material can be pushed to be evenly distributed inside the pull-out box, effectively avoiding the problem of material piling up too high inside the pull-out box. Attached Figure Description

[0017] Figure 1 This is a schematic diagram illustrating the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the outer shell structure of this utility model;

[0019] Figure 3 This utility model is a schematic diagram illustrating the structure of the pressure block and the electric telescopic rod.

[0020] Figure 4 This is a top view schematic diagram to illustrate the structure of the device.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Outer shell;

[0023] 2. Filter press structure; 201. Screw filter press; 202. Feed pipe; 203. Mesh; 204. Discharge port; 205. Electric telescopic rod; 206. Pressing block; 207. Fixing plate; 208. First motor;

[0024] 3. Auxiliary structure; 301. Connecting parts; 302. Pull-out box; 303. Water outlet pipe; 304. Second motor; 305. Threaded rod; 306. Push plate; 307. Electric slide rail; 308. Connecting plate. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0027] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0028] Reference Figure 1-2A dual-press filter press device includes a housing 1, and a filter press structure 2 is provided on the inner wall of the housing 1. The filter press structure 2 includes an auger filter press 201 installed on the inner wall of the housing 1. The top wall of the auger filter press 201 is connected to a feed pipe 202, and the bottom wall of the auger filter press 201 is provided with a mesh 203. After the material is injected into the auger filter press 201 through the feed pipe 202, the auger filter press 201 is started, and the auger filter press 201 drives the material to undergo pressing treatment. The solid material remains inside the auger filter press 201, and the liquid material flows out from the bottom through the mesh 203 of the auger filter press 201.

[0029] An auxiliary structure 3 is provided on the inner wall of the outer casing 1. The auxiliary structure 3 includes a connector 301 installed on the inner wall of the outer casing 1. The bottom of the connector 301 is hollow to facilitate the outflow of liquid. The connector 301 is located below the screw conveyor filter press 201. A pull-out box 302 is inserted into the inner wall of the connector 301. The bottom wall of the pull-out box 302 has a filter hole. The bottom wall of the outer casing 1 is connected to a water outlet pipe 303. The water outlet pipe 303 is located below the pull-out box 302. The liquid flowing out of the mesh 203 flows to the water outlet pipe 303 through the filter hole in the pull-out box 302.

[0030] Reference Figure 2-3 The screw press 201 has an outlet 204 at the end away from the feed pipe 202. The inner wall of the outer shell 1 is provided with a pressing block 206. The outer wall of the pressing block 206 is close to the outlet 204 of the outer shell 1. When the screw press 201 is in operation, the material flows out through the outlet 204 of the screw press 201. At this time, the flowing material comes into contact with the pressing block 206, which effectively improves the material pressing effect.

[0031] An electric telescopic rod 205 is movably connected to the inner wall of the outer casing 1. The output end of the electric telescopic rod 205 is fixedly connected to the outer wall of the pressing block 206. When pressing different materials, the electric telescopic rod 205 is activated, and the output end of the electric telescopic rod 205 drives the pressing block 206 to move, so as to adjust the distance between the pressing block 206 and the discharge port 204, effectively improving the pressing effect of the material.

[0032] A fixing plate 207 is installed on one side of the outer casing 1 adjacent to the electric telescopic rod 205. A first motor 208 is installed on the side of the fixing plate 207 away from the outer casing 1. The output end of the first motor 208 is fixedly connected to the outer wall of the electric telescopic rod 205. When the first motor 208 is started, it drives the electric telescopic rod 205 to rotate, which in turn drives the pressing block 206 to rotate, further improving the pressing effect of the material.

[0033] Reference Figure 2 and Figure 4A second motor 304 is installed on the outer wall of the pull-out box 302. The output end of the second motor 304 is rotatably connected to the inner wall of the pull-out box 302. A threaded rod 305 is installed on the output end of the second motor 304. The end of the threaded rod 305 away from the second motor 304 is rotatably connected to the inner wall of the pull-out box 302. A push plate 306 is threadedly connected to the outer wall of the threaded rod 305. The outer wall of the push plate 306 is slidably connected to the inner wall of the pull-out box 302. When the material falls into the pull-out box 302, the second motor 304 is started. The output end of the second motor 304 drives the threaded rod 305 to rotate. The threaded rod 305 pushes the push plate 306 to slide repeatedly on the pull-out box 302, which achieves the effect of pressing the material again.

[0034] An electric slide rail 307 is installed on the top wall of the connector 301. A connecting plate 308 is installed on the slider of the electric slide rail 307. The connecting plate 308 is located above the pull-out box 302. The bottom wall of the connecting plate 308 is a certain distance from the top wall of the pull-out box 302. When there is too much material inside the pull-out box 302, the electric slide rail 307 is activated. The slider of the electric slide rail 307 drives the connecting plate 308 to move, pushing the material inside the pull-out box 302 flat, effectively avoiding the problem of uneven distribution of material inside the pull-out box 302.

[0035] Working principle:

[0036] This dual-press filter press device injects material into the screw press 201 through the feed pipe 202. After starting the screw press 201, solid material flows out through the discharge port 204, while liquid material flows through the mesh 203 to the extraction box 302. Simultaneously, the first motor 208, the electric telescopic rod 205, and the second motor 304 are started. The electric telescopic rod 205, at its output end, moves the pressure block 206, adjusting the distance between the screw press 201 and the pressure block 206. The first motor 208 is then started. The output end of the 8 unit has an electric telescopic rod 205 and a pressure block 206 that rotate, effectively pressing the material. The solid material also slides into the pull-out box 302. The second motor 304 is started, and the output end of the second motor 304 drives the threaded rod 305 to rotate. The threaded rod 305 drives the push plate 306 to slide repeatedly to press the material again. The liquid material flows to the water outlet pipe 303 through the filter hole opened in the pull-out box 302. Through multiple pressing, the stability of the pressure filtration process is effectively improved, thereby effectively avoiding the impact on the stability of subsequent processes and product quality, and effectively avoiding the uncertainties and risks generated in the production process.

[0037] This dual-press filter press starts the electric slide rail 307. The slider of the electric slide rail 307 drives the connecting plate 308 to move. The connecting plate 308 pushes the material to be evenly distributed inside the pull-out box 302. When the material accumulates to a certain extent, the pull-out box 302 is pulled out to clean the material inside, effectively avoiding the problem of the material accumulating too high inside the pull-out box 302.

[0038] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0039] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A dual-press filter press device, comprising a housing (1), characterized in that, The inner wall of the outer shell (1) is provided with a filter press structure (2), the filter press structure (2) includes an auger filter press (201) installed on the inner wall of the outer shell (1), the top wall of the auger filter press (201) is connected to a feed pipe (202), and the bottom wall of the auger filter press (201) is provided with a mesh (203). The inner wall of the outer shell (1) is provided with an auxiliary structure (3); The auxiliary structure (3) includes a connector (301) installed on the inner wall of the outer shell (1). The connector (301) is located below the screw press (201). A pull-out box (302) is inserted into the inner wall of the connector (301). The bottom wall of the pull-out box (302) has a filter hole. The bottom wall of the outer shell (1) is connected to a water outlet pipe (303), which is located below the pull-out box (302).

2. The dual-press filter press according to claim 1, characterized in that, The screw press (201) has an outlet (204) at the end away from the feed pipe (202), and the inner wall of the outer shell (1) is provided with a pressing block (206), the outer wall of the pressing block (206) being close to the outlet (204) of the outer shell (1).

3. The dual-press filter press according to claim 1, characterized in that, An electric telescopic rod (205) is movably connected to the inner wall of the outer shell (1), and the output end of the electric telescopic rod (205) is fixedly connected to the outer wall of the pressing block (206).

4. The dual-press filter press according to claim 3, characterized in that, A fixing plate (207) is installed on one side of the outer shell (1) adjacent to the electric telescopic rod (205). A first motor (208) is installed on the side of the fixing plate (207) away from the outer shell (1). The output end of the first motor (208) is fixedly connected to the outer wall of the electric telescopic rod (205).

5. The dual-press filter press according to claim 1, characterized in that, A second motor (304) is installed on the outer wall of the pull-out box (302). A threaded rod (305) is installed at the output end of the second motor (304). The end of the threaded rod (305) away from the second motor (304) is rotatably connected to the inner wall of the pull-out box (302). A push plate (306) is threadedly connected to the outer wall of the threaded rod (305). The outer wall of the push plate (306) is slidably connected to the inner wall of the pull-out box (302).

6. A dual-press filter press according to claim 5, characterized in that, The top wall of the connector (301) is equipped with an electric slide rail (307), and the slider of the electric slide rail (307) is equipped with a connecting plate (308), which is located above the pull-out box (302).