A plate and frame sealing structure for a filter press

Abstract

This utility model provides a plate and frame sealing structure for a filter press, relating to the field of filter press technology. It includes a plate and frame body with a sealing element at its top. A convenient fixing component is provided inside the plate and frame body, comprising an installation groove. A filter press plate is disposed inside the installation groove, and a slot is formed on the inner wall of the installation groove. Slots are formed on both sides of the filter press plate, and springs are installed inside the slots. In this utility model, when the filter press plate is installed, the insert block automatically retracts. After the filter press plate is fully pushed into the installation groove, the spring pushes a push plate to insert the insert block into the slot for fixing, preventing the filter press plate from automatically sliding out. This avoids the problem of the filter press plate shifting due to vibration or material impact during high-pressure filtration, which could lead to filter press plate damage or reduced filtration efficiency, thus improving stability during use.

Description

Technical Field

[0001] This utility model relates to the field of filter press technology, and in particular to a plate and frame sealing structure for a filter press. Background Technology

[0002] A filter press is an intermittent solid-liquid separation device that uses pressure to achieve filtration and is widely used in many industries such as chemical, pharmaceutical, metallurgical, and environmental protection.

[0003] As disclosed in announcement number CN222889437U, a plate and frame sealing structure for a plate and frame filter press includes a plate and frame body. The top of the plate and frame body has several sets of filter press ports, all of which penetrate the plate and frame body. Through the coordinated use of the plate and frame body, sealing grooves, and airtight components, the airtightness between the plate and frame body and the filter press is improved. This enhanced airtightness effectively prevents leakage of solid-liquid mixtures during the filtration process, ensuring that the material is fully filtered, thereby improving filtration efficiency and quality. This is particularly important for industries requiring high-precision filtration, such as pharmaceuticals and chemicals. Furthermore, improved airtightness means that the filter press can better maintain internal pressure during operation, reducing pressure loss due to leakage. This not only helps improve the operating efficiency of the filter press but also reduces energy consumption to a certain extent, achieving energy-saving goals.

[0004] This patent can reduce pressure loss due to leakage, but existing filter screens, while simplifying the installation process through sliding insertion, lack an anti-misalignment structure. During high-pressure filtration, the screen may shift due to vibration or material impact, leading to filter damage or reduced filtration efficiency. Utility Model Content

[0005] The purpose of this invention is to address the problem that existing filter presses, while simplifying the installation process through sliding insertion, lack an anti-misalignment structure. During high-pressure filtration, the filter plates may shift due to vibration or material impact, leading to filter damage or reduced filtration efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a plate and frame sealing structure for a filter press, comprising a plate and frame body, a sealing element provided on the top of the plate and frame body, a convenient fixing component provided inside the plate and frame body, the convenient fixing component comprising an installation groove, a filter press plate provided inside the installation groove, a slot provided on the inner wall of the installation groove, slots provided inside both sides of the filter press plate, a spring provided inside the slot, a push plate connected to one side of the spring, an insert block connected to one side of the push plate, and a lever fixedly connected to the center of the front end of the push plate.

[0007] Furthermore, a handle is fixedly connected to the center of the front end of the filter press plate, and the outer surfaces on both sides of the filter press plate are in contact with the inner wall of the mounting groove.

[0008] Furthermore, the filter press plate is slidably connected to the plate frame body via the mounting groove, and the push plate and the spring form an elastic structure.

[0009] Furthermore, the surface of the insert has a bevel, and the position and size of the insert match the position and size of the slot.

[0010] Furthermore, the plug and the slot form a mating connection.

[0011] Furthermore, quick-change components are connected to both sides of the plate frame body. The quick-change components include positioning blocks, and the positioning blocks have slots inside.

[0012] Furthermore, a hanging bracket is fitted to the outer surface of the positioning block, and a bidirectional screw is inserted into the inside of the hanging bracket. A throttle is fixedly connected to the rear end of the bidirectional screw.

[0013] Furthermore, two sets of movable locking blocks are symmetrically connected to the two sides of the bidirectional screw, and positioning grooves are provided inside both sides of the hanging frame.

[0014] Furthermore, the position and size of the positioning groove match the position and size of the positioning block, and the positioning block and the positioning groove form a snap-fit ​​connection.

[0015] Furthermore, the bidirectional screw and the movable locking block form a threaded connection, and the movable locking block and the locking slot form an interlocking connection.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] 1. In this utility model, when the filter press plate is installed, the insert block will automatically retract. After the filter press plate is fully pushed into the installation groove, the spring will push the push plate to drive the insert block into the slot for fixation, thereby preventing the filter press plate from sliding out automatically. This avoids the problem that the filter press plate may shift due to vibration or material impact during high-pressure filtration, which could lead to filter press plate damage or reduced filtration efficiency, and improves the stability during use.

[0018] 2. In this utility model, when the hanging frame is damaged, such as due to severe impact during transportation, the throttle can be turned to allow the moving block to retract automatically. Then, the hanging frame can be pulled outward to complete the disassembly of the hanging frame. At this time, a new hanging frame can be installed and fixed. This avoids the problem of complex operation and high cost when the hanging frame needs to be replaced or repaired, which is caused by the traditional fixed connection method of the hanging frame, such as welding or one-piece molding. This reduces the cost of use. Attached Figure Description

[0019] Figure 1 A three-dimensional structural diagram of a plate and frame sealing structure for a filter press is provided for this utility model.

[0020] Figure 2 An exploded structural diagram of a plate and frame sealing structure for a filter press is provided for this utility model.

[0021] Figure 3 This utility model provides a partial cross-sectional view of the filter plate of a plate and frame sealing structure for a filter press.

[0022] Figure 4 This utility model provides a partially exploded structural diagram of the plate and frame sealing structure of a filter press;

[0023] Figure 5 This utility model provides a schematic cross-sectional view of the hanging frame structure of a plate and frame sealing structure for a filter press.

[0024] Legend: 1. Plate and frame body; 2. Sealing element; 3. Convenient fixing component; 301. Mounting groove; 302. Slot; 303. Filter press plate; 304. Handle; 305. Groove; 306. Spring; 307. Push plate; 308. Insert block; 309. Pulley block; 4. Quick replacement component; 401. Positioning block; 402. Slot; 403. Hanger; 404. Two-way screw; 405. Rotary handle; 406. Moving block; 407. Positioning groove. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0027] Example 1, as Figure 1 - Figure 3As shown, this utility model provides a plate and frame sealing structure for a filter press, including a plate and frame body 1. A sealing element 2 is provided on the top of the plate and frame body 1. A convenient fixing component 3 is provided inside the plate and frame body 1. The convenient fixing component 3 includes an installation groove 301. A filter press plate 303 is provided inside the installation groove 301. A slot 302 is provided on the inner wall of the installation groove 301. A slot hole 305 is provided on both sides of the filter press plate 303. A spring 306 is provided inside the slot hole 305. A push plate 307 is connected to one side of the spring 306. A plug is connected to one side of the push plate 307. Block 308, push plate 307 has a fixedly connected push block 309 at the front center position, filter press plate 303 has a fixedly connected handle 304 at the front center position, the outer surfaces of both sides of filter press plate 303 are in contact with the inner wall of mounting groove 301, filter press plate 303 is slidably connected to plate frame body 1 through mounting groove 301, push plate 307 and spring 306 form an elastic structure, the surface of insert block 308 has a bevel, the position and size of insert block 308 match the position and size of slot 302, insert block 308 and slot 302 form an insertion connection.

[0028] The effect achieved in Embodiment 1 is that when the filter press plate 303 needs to be disassembled and cleaned, the operator can simultaneously and smoothly move the two sets of symmetrically distributed pry blocks 309 inward with both hands. As the pry blocks 309 move, they will drive the push plate 307 connected to them to move inward synchronously, thereby squeezing the spring 306 between the push plate 307 and the mounting structure, causing the spring 306 to gradually compress and deform. At the same time, the insert block 308 fixedly connected to the push plate 307 will be pulled out of the slot 302 under the action of the push plate 307. When the insert block 308 is completely disengaged from the slot 302, the insertion block 308 will be pulled out of the slot 302. 2. After that, the operator holds the handle 304 installed on the filter press plate 303 and pulls the handle 304 outward with even force. The handle 304 drives the filter press plate 303 to slide smoothly out along the guide direction of the mounting groove 301 until the filter press plate 303 is completely detached from the mounting groove 301. This completes the disassembly of the filter press plate 303. The disassembled filter press plate 303 can then be thoroughly cleaned to remove impurities, filter residue, and other substances adhering to its surface, ensuring its filtration performance. After cleaning, when it is necessary to further clean the filter press plate 303... 3. During reinstallation, the operator can align the mounting end of the filter press plate 303 with the mounting groove 301, and then smoothly, slowly, and directly push the filter press plate 303 into the mounting groove 301. During the pushing process, when the angled position of the insert block 308 contacts the edge of the filter press plate 303 or related structures, due to the angled design, the insert block 308 will automatically retract into the slot 305 under pressure, while continuing to compress the spring 306. As the filter press plate 303 is continuously pushed into the mounting groove 301, when the filter press plate 303 is fully pushed into the predetermined position, i.e., after installation, at this time... Under its own elastic force, the spring 306 quickly returns to its original shape, pushing the pusher plate 307 to move the insert block 308 outward, so that the insert block 308 is accurately inserted into the corresponding slot 302, achieving precise positioning and firm fixation. This design can effectively prevent the filter plate 303 from vibrating due to strong pressure or shifting due to the violent impact of the material during high-pressure filtration, thereby preventing damage caused by the shifting of the filter plate 303 and the decrease in filtration efficiency, and greatly improving the stability and reliability of the filter press during use.

[0029] Example 2, as Figure 1 and Figure 5As shown, quick-change components 4 are connected to both sides of the plate frame body 1. The quick-change components 4 include positioning blocks 401, with slots 402 inside the positioning blocks 401. Hanging brackets 403 are attached to the outer surface of the positioning blocks 401. A bidirectional screw 404 is inserted into the hanging bracket 403. A throttle 405 is fixedly connected to the rear end of the bidirectional screw 404. Two sets of movable locking blocks 406 are symmetrically connected to the two sides of the bidirectional screw 404. Positioning grooves 407 are opened inside both sides of the hanging bracket 403. The position and size of the positioning grooves 407 match the position and size of the positioning blocks 401. The positioning blocks 401 and the positioning grooves 407 form a snap-fit ​​connection. The bidirectional screw 404 and the movable locking blocks 406 form a threaded connection. The movable locking blocks 406 and the slots 402 form an insertion connection.

[0030] The effect achieved in Embodiment 2 is that when the hanging frame 403 is damaged, such as due to severe impact during transportation, the handle 405 can be rotated forward to drive the bidirectional screw 404 to rotate forward. This allows the bidirectional screw 404 to rotate forward simultaneously with the two sets of movable locking blocks 406. This causes the two sets of movable locking blocks 406 to automatically retract inward, pulling them out of the slots 402 of the positioning block 401. Then, the hanging frame 403 can be pulled outward, thus completing the adjustment of the hanging frame 403. When disassembling and then installing and fixing the new hanging bracket 403, the positioning groove 407 of the hanging bracket 403 can be aligned with the positioning block 401. Then, the reverse handle 405 drives the bidirectional screw 404 to reverse, so that the moving block 406 can move to both sides and be inserted into the slot 402 of the positioning block 401 for fixing. This avoids the problem of the traditional hanging bracket 403 using a fixed connection method, such as welding or one-piece molding, which leads to complicated operation and high cost when the hanging bracket 403 needs to be replaced or repaired, thus reducing the cost of use.

[0031] Working principle: When the filter press plate 303 is installed, the insert block 308 automatically retracts. After the filter press plate 303 is fully pushed into the mounting groove 301, the spring 306 pushes the push plate 307 to drive the insert block 308 into the slot 302 for fixation. This prevents the filter press plate 303 from sliding out automatically and avoids the filter press plate 303 from shifting due to vibration or material impact during high-pressure filtration, which could lead to damage or reduced filtration efficiency. This improves stability during use. When the hanging frame 403 is damaged, such as from severe impact during transportation, the handle 405 can be turned to allow the moving block 406 to retract automatically. Then, the hanging frame 403 can be pulled outward to disassemble it. A new hanging frame 403 can then be installed and fixed. This avoids the problem of complex and costly operation when replacing or repairing the hanging frame 403, which is a traditional method of fixed connection for the hanging frame 403, such as welding or one-piece molding. This reduces the cost of use.

[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A plate and frame seal structure of a filter press comprising a plate and frame body (1), characterized in that: The top of the plate frame body (1) is provided with a sealing element (2), and the interior of the plate frame body (1) is provided with a convenient fixing component (3). The convenient fixing component (3) includes a mounting groove (301), a filter press plate (303) is provided inside the mounting groove (301), a slot (302) is provided on the inner wall of the mounting groove (301), a slot hole (305) is provided on both sides of the filter press plate (303), a spring (306) is provided inside the slot hole (305), a push plate (307) is connected to one side of the spring (306), an insert block (308) is connected to one side of the push plate (307), and a lever block (309) is fixedly connected to the center of the front end of the push plate (307).

2. A plate and frame seal for a filter press according to claim 1, wherein: A handle (304) is fixedly connected to the center of the front end of the filter press plate (303), and the outer surfaces of both sides of the filter press plate (303) are in contact with the inner wall of the mounting groove (301).

3. A plate and frame seal for a filter press according to claim 2, wherein: The filter press plate (303) is slidably connected to the plate frame body (1) through the mounting groove (301), and the push plate (307) and the spring (306) form an elastic structure.

4. A plate and frame seal for a filter press according to claim 3, wherein: The surface of the insert (308) is provided with a bevel, and the position and size of the insert (308) match the position and size of the slot (302).

5. A plate and frame seal for a filter press according to claim 4, wherein: The insert (308) and the slot (302) form an interlocking connection.

6. A plate and frame seal for a filter press according to claim 1, wherein: Both sides of the plate frame body (1) are connected to quick-change components (4). The quick-change components (4) include positioning blocks (401), and the positioning blocks (401) have slots (402) inside.

7. A plate and frame seal for a filter press according to claim 6, wherein: The positioning block (401) has a hanging bracket (403) attached to its outer surface. A bidirectional screw (404) is inserted into the inside of the hanging bracket (403). A throttle (405) is fixedly connected to the rear end of the bidirectional screw (404).

8. A plate and frame seal for a filter press according to claim 7, wherein: The two sides of the bidirectional screw (404) are symmetrically connected with two sets of movable blocks (406), and the two sides of the hanging bracket (403) are provided with positioning grooves (407).

9. A plate and frame seal for a filter press according to claim 8, wherein: The position and size of the positioning groove (407) match the position and size of the positioning block (401), and the positioning block (401) and the positioning groove (407) form a snap-fit ​​connection.

10. A plate and frame seal for a filter press according to claim 9, wherein: The bidirectional screw (404) and the movable locking block (406) form a threaded connection, and the movable locking block (406) and the locking groove (402) form a plug-in connection.

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