Filter press structure capable of quickly replacing filter plate

Abstract

The utility model relates to the technical field of filter presses, in particular to a filter press structure capable of quickly replacing a filter plate, which comprises a rack, the inner side of the rack is connected with a filter plate body in a sliding manner, the surface of the rack is connected with a plate pulling device in a sliding manner, and the rack is provided with a replacing mechanism. Through mutual cooperation of the electric push rod, the first bidirectional screw rod, the driving motor, the clamping block, the insertion rod and other parts in the replacement mechanism, rapid fixing and dismounting of the filter plate body are achieved, the position of the connecting plate is adjusted through the electric push rod, and the driving motor drives the first bidirectional screw rod to rotate; by arranging the clamping blocks on the filter plate body, the inserting rods on the clamping blocks are inserted into or separated from the fixing holes of the filter plate body, so that the tedious operation of screwing by using screws in the traditional mode is avoided, additional tools are not needed, the time for replacing the filter plate body is greatly saved, the working efficiency is improved, and meanwhile, the workload of operators is reduced.

Description

Technical Field

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

[0002] A filter press is a solid-liquid separation filtration device. Its working principle involves applying pressure to the material using a special filter medium, causing the liquid to seep out and achieving solid-liquid separation. A filter press generally consists of a pressure plate, thrust plate, filter plates, hydraulic cylinder, main beam, transmission, and pulling plate device. When the piston of the hydraulic cylinder pushes the head plate, pressing the filter plates together to form a filter chamber, a feed pump sends slurry into the filter chamber. Water permeates through the filter cloth and is discharged through the drain port, while the solid slurry forms a filter cake in the filter chamber. Once the filter chamber is full of slurry, a high-pressure pump continues to pressurize and filter the slurry, further separating the solid and liquid within the filter chamber.

[0003] In the prior art, such as Chinese Patent No. CN222266246U, a filter press that facilitates filter plate replacement is disclosed, belonging to the field of filter press technology. It includes two support plates, with multiple filter plates movably connected to their adjacent outer surfaces. Push rods are fixedly installed on the outer surfaces of the two support plates via fixing plates. It also includes a lifting assembly located between the support frame and the tops of the multiple filter plates for lifting the filter plates; and a clamping assembly located between the support frame and the outer surfaces of the two filter plates for stabilizing the filter plates during lifting. Through the cooperation of the clamping assembly and the lifting assembly, the pressing blocks contact the sides of the filter plates, clamping them tightly. A connecting plate connects to the top of the filter plates, and a drive motor lifts the connecting plate on the threaded rod, thereby pulling the filter plates out from the two support frames. This eliminates the need for manual lifting, reducing the labor intensity of workers and improving the efficiency of filter plate replacement.

[0004] Although the device facilitates the replacement of filter plates, the screws on the connecting plate need to be screwed into the connecting holes on the filter plates when replacing them. However, this fixing method not only requires tools but is also time-consuming and labor-intensive. Each time the filter plates are replaced, the operator needs to repeatedly disassemble and assemble the screws, which is not conducive to improving the efficiency of filter plate replacement and reducing the workload of the operator. Utility Model Content

[0005] The purpose of this invention is to solve the problems mentioned in the background art and to propose a filter press structure with quick filter plate replacement.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a filter press structure with quick filter plate replacement, including a frame, a filter plate body slidably connected to the inner side of the frame, a pulling plate device slidably connected to the surface of the frame, and a replacement mechanism provided on the frame;

[0007] The replacement mechanism includes a support frame, the bottom end of which is slidably connected to the inside of the machine frame. An electric push rod is provided on the inner side of the support frame. A connecting plate is fixedly connected to the output end of the electric push rod. A bidirectional lead screw is rotatably connected to the inner side of the connecting plate. A drive motor is fixedly connected to the surface of the connecting plate. The output end of the drive motor is fixedly connected to one end of the bidirectional lead screw. A clamping block is threadedly connected to the surface of the bidirectional lead screw. An insertion rod is fixedly connected to the surface of the clamping block. A fixing hole is opened on the surface of the filter plate body. The insertion rod is inserted into the fixing hole.

[0008] Preferably, there are two sets of insert rods, and the two sets of insert rods are symmetrically distributed on both sides of the middle part of the surface of the filter plate body.

[0009] Preferably, a guide rod is fixedly connected to the inner side of the connecting plate, and a circular hole is opened on the surface of the clamping block, with the guide rod inserted into the circular hole.

[0010] Preferably, a positioning plate is fixedly connected to the surface of the clamping block, and the positioning plate is located below the bidirectional lead screw.

[0011] Preferably, a square box is fixedly connected to the surface of the connecting plate, and a bidirectional lead screw is rotatably connected to the inside of the square box. A driving block is threadedly connected to the surface of the bidirectional lead screw, a limit plate is fixedly connected to the bottom of the driving block, and a handle is fixedly connected to one end of the bidirectional lead screw.

[0012] Preferably, the surface of the handle is covered with a handle sleeve, which is made of elastic rubber.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, the electric push rod, the double-acting screw, the drive motor, the clamping block, and the insert rod in the replacement mechanism work together to achieve quick fixing and disassembly of the filter plate body. The electric push rod adjusts the position of the connecting plate, and the drive motor drives the double-acting screw to rotate, so that the insert rod on the clamping block is inserted into or disengaged from the fixing hole of the filter plate body. This avoids the cumbersome operation of screwing in the traditional method, and does not require additional tools, which greatly saves the time of replacing the filter plate body, improves work efficiency, and reduces the workload of operators.

[0015] 2. In this utility model, rotating the handle drives the two-way lead screw to rotate, which in turn drives the driving block to move the limiting plate. This further limits and fixes the filter plate body. Based on the filter plate being fixed by the insert rod, the auxiliary fixing of the limiting plate is added, which improves the stability of the filter plate body during replacement and prevents the filter plate body from swinging, thus avoiding unnecessary safety accidents. Attached Figure Description

[0016] Figure 1 A schematic diagram of a filter press structure with a quick-change filter plate is provided for this utility model;

[0017] Figure 2 An exploded view of the structure of a filter press with a quick-change filter plate is provided for this utility model.

[0018] Figure 3 This is a partially exploded view of a filter press structure with a quick-change filter plate, which is proposed in this utility model.

[0019] Legend:

[0020] 1. Frame; 2. Replacement mechanism; 201. Support frame; 202. Electric push rod; 203. Connecting plate; 204. Double-acting screw one; 205. Clamping block; 206. Insertion rod; 207. Drive motor; 3. Filter plate body; 4. Square box; 5. Double-acting screw two; 6. Drive block; 7. Limiting plate; 8. Handle; 9. Handle sleeve; 10. Guide rod; 11. Round hole; 12. Pulling plate device; 13. Fixing hole; 14. Positioning plate. Detailed Implementation

[0021] 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.

[0022] 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.

[0023] Example 1: As Figure 1 - Figure 3 As shown, this utility model provides a technical solution: a filter press structure with quick filter plate replacement, including a frame 1, a filter plate body 3 slidably connected to the inner side of the frame 1, a pulling plate device 12 slidably connected to the surface of the frame 1, and a replacement mechanism 2 provided on the frame 1.

[0024] The replacement mechanism 2 includes a support frame 201, the bottom end of which is slidably connected to the inside of the frame 1. An electric push rod 202 is disposed inside the support frame 201. A connecting plate 203 is fixedly connected to the output end of the electric push rod 202. A bidirectional lead screw is rotatably connected to the inner side of the connecting plate 203. A drive motor 207 is fixedly connected to the surface of the connecting plate 203. The output end of the drive motor 207 is fixedly connected to one end of the bidirectional lead screw 204. A clamping block 205 is threadedly connected to the surface of the bidirectional lead screw 204. A rod 206 is fixedly connected to the surface of the filter plate body 3. A fixing hole 13 is opened on the surface of the filter plate body 3. The rod 206 is inserted into the fixing hole 13. There are two sets of rods 206. The two sets of rods 206 are symmetrically distributed on both sides of the middle part of the surface of the filter plate body 3. A guide rod 10 is fixedly connected to the inner side of the connecting plate 203. A round hole 11 is opened on the surface of the clamping block 205. The guide rod 10 is inserted into the round hole 11. A positioning plate 14 is fixedly connected to the surface of the clamping block 205. The positioning plate 14 is located below the bidirectional lead screw 204.

[0025] In this embodiment, the electric push rod 202, the bidirectional lead screw 204, the drive motor 207, the clamping block 205, and the insertion rod 206 in the replacement mechanism 2 work together to achieve rapid fixing and disassembly of the filter plate body 3. The electric push rod 202 adjusts the position of the connecting plate 203, and the drive motor 207 rotates the bidirectional lead screw 204, causing the insertion rod 206 on the clamping block 205 to insert into or disengage from the fixing hole 13 of the filter plate body 3. This avoids the cumbersome operation of screwing in traditional methods, eliminates the need for additional tools, greatly saves time in replacing the filter plate, improves work efficiency, and reduces... To reduce the workload of operators, when the bidirectional lead screw 204 drives the clamping block 205 to move, the guide rod 10 plays a guiding role, enabling the clamping block 205 to move smoothly along the direction of the guide rod 10, avoiding the clamping block 205 from deviating during the movement, and ensuring that the insertion rod 206 can be accurately inserted into or disengaged from the fixing hole 13. This improves the working accuracy and stability of the replacement mechanism 2. The positioning plate 14 can limit the movement range of the clamping block 205, preventing the clamping block 205 from moving excessively downward under the drive of the electric push rod 202, thereby further improving the convenience of inserting the insertion rod 206 into the fixing hole 13.

[0026] Example 2: As Figure 3 As shown, a square box 4 is fixedly connected to the surface of the connecting plate 203. A two-way lead screw 5 is laterally rotatably connected inside the square box 4. A drive block 6 is threadedly connected to the surface of the two-way lead screw 5. A limit plate 7 is fixedly connected to the bottom of the drive block 6. A handle 8 is fixedly connected to one end of the two-way lead screw 5. A handle sleeve 9 is fitted on the surface of the handle 8. The handle sleeve 9 is made of elastic rubber.

[0027] In this embodiment, rotating the handle 8 drives the bidirectional lead screw 5 to rotate, causing the drive block 6 to move the limiting plate 7, which further limits and fixes the filter plate body 3. Based on the filter plate fixed by the insertion rod 206, the auxiliary fixing of the limiting plate 7 is added, which improves the stability of the filter plate body 3 during the replacement process and prevents the filter plate body 3 from swinging, so as to avoid unnecessary safety accidents. The elastic rubber handle sleeve 9 on the surface of the handle 8 provides the operator with a better grip and increases the friction, making it more comfortable and effortless for the operator to turn the handle 8, reducing hand fatigue and improving the convenience of operation.

[0028] The working principle of this embodiment is as follows: During use, the frame 1 provides a supporting structure for the entire filter press, and the filter plate body 3 is slidably connected to the inner side of the frame 1. When the filter press starts working, the hydraulic cylinder (not mentioned in the figure, but a conventional filter press component) pushes the pressing plate, causing multiple filter plate bodies 3 to press against each other, forming multiple independent filter chambers. The feed pump transports the slurry or other materials to be filtered into the filter chambers. Under pressure, the liquid in the material passes through the filter cloth and is discharged through the drain port on the filter plate body 3, while the solid particles are trapped in the filter chamber and gradually form a filter cake. When it is necessary to replace the filter plate, firstly, the plate pulling device 12 is controlled to slide on the surface of the frame 1 (the plate pulling device 12 is prior art, and how the plate pulling device 12 is used is not discussed here). Specifically, the filter plate body 3 is pushed open (not described in detail), separating the filter plate body 3 to be replaced from the other filter plates, placing it in an easily operable position. Then, the support frame 201 of the replacement mechanism 2 is pushed to the designated position. Then, the electric push rod 202 in the replacement mechanism 2 is activated. The output end of the electric push rod 202 drives the connecting plate 203 to move downward from above the filter plate body 3 until the positioning plate 14 on the clamping block 205 abuts against the filter plate body 3. Then, the operator holds the handle sleeve 9 on the surface of the handle 8 and rotates the handle 8, which drives the double-acting screw 2 5 to rotate. The driving block 6 on the surface of the double-ended lead screw 5 moves under the action of the thread, and the limiting plate 7 at the bottom of the driving block 6 moves accordingly, further limiting and fixing the filter plate body 3, enhancing the stability of the filter plate during replacement, and aligning the fixing hole 13 on the filter plate body 3 with the insertion rod 206 until the insertion rod 206 is aligned with the fixing hole 13 on the surface of the filter plate body 3. Then, the drive motor 207 is started, and the drive motor 207 drives the double-ended lead screw 204 to rotate. The two clamping blocks 205 on the double-ended lead screw 204 will move relative to each other under the action of the double-ended lead screw 204, so that the insertion rod 206 on the clamping block 205 is inserted into the fixing hole 13, fixing the filter plate body 3 to the connecting plate 2. In step 03, during this process, the guide rod 10 is inserted into the round hole 11 on the surface of the clamping block 205 to guide the movement of the clamping block 205 and ensure that the insertion rod 206 is accurately inserted into the fixing hole 13. After the filter plate body 3 is firmly fixed, the electric push rod 202 is started again to lift the filter plate body 3 from the inside of the frame 1. Then, the support frame 201 is pushed to move the replacement mechanism 2 to one side of the frame 1. Then, the drive motor 207 is started again to release the clamping block 205 from fixing the filter plate body 3. Then, the filter plate body 3 can be quickly replaced. Through the above steps, the filter press realizes the quick replacement of the filter plate, improves the working efficiency, and reduces the workload of the operator.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present 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 the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A filter press structure with quick-change filter plates, comprising a frame (1), characterized in that: The inner side of the frame (1) is slidably connected to the filter plate body (3), the surface of the frame (1) is slidably connected to the pull plate device (12), and the frame (1) is provided with a replacement mechanism (2). The replacement mechanism (2) includes a support frame (201), the bottom end of which is slidably connected to the inside of the frame (1). An electric push rod (202) is provided on the inner side of the support frame (201). A connecting plate (203) is fixedly connected to the output end of the electric push rod (202). A bidirectional lead screw is rotatably connected to the inner side of the connecting plate (203). A drive motor (207) is fixedly connected to the surface of the connecting plate (203). The output end of the drive motor (207) is fixedly connected to one end of the bidirectional lead screw (204). A clamping block (205) is threadedly connected to the surface of the bidirectional lead screw (204). An insertion rod (206) is fixedly connected to the surface of the clamping block (205). A fixing hole (13) is opened on the surface of the filter plate body (3). The insertion rod (206) is inserted into the fixing hole (13).

2. The filter press structure with quick-change filter plates according to claim 1, characterized in that: There are two sets of the insertion rods (206), and the two sets of insertion rods (206) are symmetrically distributed on both sides of the middle part of the surface of the filter plate body (3).

3. The filter press structure with quick-change filter plates according to claim 1, characterized in that: A guide rod (10) is fixedly connected to the inner side of the connecting plate (203), and a circular hole (11) is opened on the surface of the clamping block (205), and the guide rod (10) is inserted into the inside of the circular hole (11).

4. The filter press structure with quick-change filter plates according to claim 1, characterized in that: A positioning plate (14) is fixedly connected to the surface of the clamping block (205), and the positioning plate (14) is located below the bidirectional lead screw (204).

5. The filter press structure with quick-change filter plates according to claim 1, characterized in that: A square box (4) is fixedly connected to the surface of the connecting plate (203). A two-way lead screw (5) is laterally rotatably connected inside the square box (4). A drive block (6) is threadedly connected to the surface of the two-way lead screw (5). A limit plate (7) is fixedly connected to the bottom of the drive block (6). A handle (8) is fixedly connected to one end of the two-way lead screw (5).

6. The filter press structure with quick-change filter plates according to claim 5, characterized in that: The surface of the handle (8) is covered with a handle sleeve (9), which is made of elastic rubber.

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