Plate-and-frame filter press with self-cleaning function

Abstract

This utility model discloses a plate and frame filter press with self-cleaning function, relating to the technical field of electrolytic foil production equipment. It includes a left fixed plate, a right fixed plate, and multiple sets of plate frames arranged between the two sets of end plates. Hooks are fixedly connected to the front and rear ends of each plate frame. A self-cleaning component for easy cleaning and sludge removal is installed inside the crossbeam. This self-cleaning plate and frame filter press, through the arrangement of a crossbeam, terminal block, ultrasonic transducer, and metal guide plate, allows for efficient backwashing. During backwashing, the ultrasonic generator is connected to the terminal block to power the ultrasonic transducer. The ultrasonic transducer inside the crossbeam continuously releases ultrasonic waves, which are transmitted to the inside of the plate frame via the metal guide plate and rapidly diffuse in water. Through cavitation, the adhering sludge on the filter screen is quickly peeled off, improving cleaning efficiency and reducing overall water consumption. This achieves a water-saving self-cleaning function, solving the problem of devices lacking this feature.

Description

Technical Field

[0001] This utility model relates to the technical field of electrolytic foil production equipment, specifically a plate and frame filter press with self-cleaning function. Background Technology

[0002] Electrolytic foil is a product made by electrochemically or chemically corroding specially made high-purity aluminum foil to expand its surface area, and then electrochemically forming an oxide film (aluminum oxide) on the surface. Plate and frame filter press is a common sludge dewatering equipment. During the production of electrolytic foil, water-containing sludge is pumped into the plate and frame, and the pressure difference between the two sides of the filter screen is used as the driving force to force the sludge water to pass through the filter medium to form filtrate, while solid particles are trapped on the medium to form filter cake, thereby achieving the purpose of sludge dewatering.

[0003] Most plate and frame filter presses currently on the market are similar in overall structure. They use a hydraulic mechanism to press multiple plates and frames together. Water-containing sludge is pumped in through the pump inlet, and the sludge quickly fills the gaps between the filter screens inside the plates and frames along the inlet holes. Water passes through the filter screens and is discharged through the outlet holes. However, there are some functional deficiencies in actual use, which have room for improvement. For example, current plate and frame filter presses mainly rely on injecting clean water in reverse through the filtrate discharge pipe for reverse rinsing. The entire cleaning process is time-consuming and consumes a lot of water. Furthermore, the cleaning effect on firmly attached sludge is not ideal, and it does not have a water-saving self-cleaning function.

[0004] Now, a novel plate and frame filter press with self-cleaning function is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a plate and frame filter press with a self-cleaning function to solve the problem mentioned in the background art of not having a water-saving self-cleaning function.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a plate and frame filter press with self-cleaning function, comprising a left fixed plate and a right fixed plate, two sets of crossbeams fixedly connected between the left and right fixed plates, a second hydraulic cylinder installed at the middle position of the left side of the left fixed plate, end plates fixedly connected to the output end of the second hydraulic cylinder and the left side of the right fixed plate, multiple sets of plate frames arranged between the two sets of end plates, hooks fixedly connected to the front and rear ends of the plate frames, filter screens covered at the front and rear ends of the plate frames, and mud inlets arranged at the middle positions of the plate frames and filter screens. The plate frame has four corner holes on its left and right sides. The upper and lower ends of the front right side of the right fixed plate are fixedly connected to the first filtrate discharge pipe. The upper and lower ends of the rear right side of the right fixed plate are fixedly connected to the second filtrate discharge pipe. The middle position of the right side of the right fixed plate is fixedly connected to the mud inlet pipe. The front and rear ends of the left and right fixed plates are respectively provided with limit grooves. A connecting rod is fixedly connected laterally between the two sets of limit grooves. A control box is fixedly connected to the outer side of the connecting rod. The inside of the crossbeam is provided with a self-cleaning component for easy cleaning and mud removal.

[0007] The self-cleaning component includes a terminal block, which is disposed on the outer side of the crossbeam. A metal guide plate is fixedly connected to the inner side of the crossbeam, and multiple sets of ultrasonic transducers are installed inside the crossbeam.

[0008] As a further technical solution of this utility model, the shape and size of the outer surface of the crossbeam are adapted to the shape and size of the inner surface of the hook, and the inner side of the crossbeam is fitted with the plate frame.

[0009] As a further technical solution of this utility model, the end faces of the crossbeam and the metal guide plate are flush, the ultrasonic transducer and the metal guide plate are fixedly connected, and the terminal block, the ultrasonic transducer and the control box are electrically connected.

[0010] As a further technical solution of this utility model, the liquid outlet hole, the first filtrate discharge pipe, and the second filtrate discharge pipe are internally connected, and the mud inlet hole and the mud inlet pipe are internally connected.

[0011] As a further technical solution of this utility model, limit grooves are respectively opened on both sides inside the limit groove frame, and limit steel sleeves are respectively fixedly connected to the front and rear ends of the left and right fixed plates. Limit strips are welded to the outer side of the limit steel sleeves, and a first hydraulic cylinder is installed inside the limit steel sleeves. The shape and size of the limit steel sleeves and limit strips are adapted to the shape and size inside the limit groove frame and the limit grooves. The limit steel sleeves can move up and down along the inside of the limit groove frame.

[0012] As a further technical solution of this utility model, the bottom ends of the first filtrate discharge tube and the second filtrate discharge tube are respectively fixedly connected to sample ports, and a sample collection valve is installed at the bottom end of the sample ports. The interiors of the first filtrate discharge tube and the sample ports are connected, and the interiors of the second filtrate discharge tube and the sample ports are also connected.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the plate and frame filter press with self-cleaning function not only realizes the function of water saving and self-cleaning, but also realizes the function of easy adjustment of the frame height from the ground, and also realizes the function of easy sampling and observation.

[0014] (1) By setting up a crossbeam, terminal block, ultrasonic transducer and metal guide plate, when in use, the second hydraulic cylinder extends and presses the plate frame through the end plate. The mud is pumped in from the mud inlet pipe and spreads rapidly through the mud inlet hole. The filter screen catches the mud and water enters the outlet hole through the filter screen and is discharged from the first filtrate discharge pipe and the second filtrate discharge pipe. When cleaning is required, stop the mud injection and inject clean water through the first filtrate discharge pipe. The clean water enters the plate frame along the outlet hole and backwashes the filter screen. The backwash water carries the residual mud and is discharged from the mud inlet pipe and the second filtrate discharge pipe. During the backwashing process, the ultrasonic generator is connected to the terminal block to power the ultrasonic transducer. The ultrasonic transducer in the crossbeam continuously releases ultrasonic waves. The ultrasonic waves are transmitted to the inside of the plate frame through the metal guide plate and spread rapidly with water as the medium. The cavitation effect quickly peels off the attached mud on the filter screen, improves the cleaning efficiency, and reduces the overall water consumption, thus realizing the function of water saving and self-cleaning.

[0015] (2) By setting up a limiting groove frame, a limiting slide, a limiting steel sleeve, a limiting plate and a first hydraulic cylinder, when in use, the mud cake produced after the mud slurry is filtered needs to be discharged through the conveyor belt below the equipment. According to the arrangement of the conveyor belt, the height of the equipment can be adjusted. The first hydraulic cylinder in the limiting steel sleeve extends downward, and the left and right fixed plates can be raised along the inside of the limiting groove frame by the reaction force. The limiting slide and the limiting plate can make it slide up and down smoothly and stably, realizing the function of facilitating the adjustment of the frame height above the ground.

[0016] (3) By setting up a sample port and a sample collection valve, during use, the sample collection valve can be opened to collect water samples during the pressure filtration and cleaning process. The water leaks out along the sample port, and the staff can collect and observe it through a beaker, thus realizing the function of convenient sampling and observation. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present utility model;

[0018] Figure 2 This is a partial sectional view of the plate and frame structure of this utility model from the side.

[0019] Figure 3 This is an enlarged side cross-sectional view of the crossbeam of this utility model.

[0020] Figure 4 This is a partial cross-sectional view of the right-side fixing plate of this utility model.

[0021] In the diagram: 1. Left fixing plate; 2. Crossbeam; 3. Terminal block; 4. Ultrasonic transducer; 5. Metal guide plate; 6. End plate; 7. Plate frame; 8. Hook; 9. Mud inlet; 10. Liquid outlet; 11. Filter screen; 12. Right fixing plate; 13. First filtrate discharge pipe; 14. Mud inlet pipe; 15. Second filtrate discharge pipe; 16. Limiting groove frame; 17. Limiting slide; 18. Limiting steel sleeve; 19. Limiting strip; 20. First hydraulic cylinder; 21. Sample port; 22. Sample collection valve; 23. Connecting rod; 24. Control box; 25. Second hydraulic cylinder. Detailed Implementation

[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Please refer to Figure 1-4 A plate and frame filter press with self-cleaning function includes a left fixed plate 1 and a right fixed plate 12. Two sets of crossbeams 2 are fixedly connected between the left fixed plate 1 and the right fixed plate 12. A second hydraulic cylinder 25 is installed at the middle position of the left side of the left fixed plate 1. The output end of the second hydraulic cylinder 25 and the left side of the right fixed plate 12 are respectively fixedly connected to end plates 6. Multiple sets of plate frames 7 are arranged between the two sets of end plates 6. Hooks 8 are fixedly connected to the front and rear ends of the plate frames 7. Filter screens 11 are covered at the front and rear ends of the plate frames 7. Mud inlets 9 are respectively provided at the middle positions of the plate frames 7 and the filter screens 11. Four... Each corner has an outlet hole 10. The upper and lower ends of the right front end of the right fixed plate 12 are respectively fixedly connected to the first filtrate discharge pipe 13. The upper and lower ends of the right rear end of the right fixed plate 12 are respectively fixedly connected to the second filtrate discharge pipe 15. The middle position of the right side of the right fixed plate 12 is fixedly connected to the mud inlet pipe 14. The front and rear ends of the left fixed plate 1 and the right fixed plate 12 are respectively provided with limit slots 16. The two sets of limit slots 16 are horizontally fixedly connected to the connecting rod 23. The outer side of the connecting rod 23 is fixedly connected to the control box 24. The inside of the crossbeam 2 is provided with a self-cleaning component that facilitates cleaning and mud removal.

[0024] Please see Figure 1-4 The plate and frame filter press with self-cleaning function also includes a self-cleaning component, which includes a terminal block 3. The terminal block 3 is set on the outer side of the crossbeam 2. A metal guide plate 5 is fixedly connected to the inner side of the crossbeam 2. Multiple sets of ultrasonic transducers 4 are installed inside the crossbeam 2.

[0025] The external shape and size of the crossbeam 2 are compatible with the internal shape and size of the hook 8. The inner side of the crossbeam 2 fits into the frame 7. The end faces of the crossbeam 2 and the metal guide plate 5 are flush. The ultrasonic transducer 4 and the metal guide plate 5 are fixedly connected. The terminal block 3, the ultrasonic transducer 4, and the control box 24 are electrically connected. The internal parts of the liquid outlet 10, the first filtrate discharge pipe 13, and the second filtrate discharge pipe 15 are connected. The internal parts of the mud inlet 9 and the mud inlet pipe 14 are connected. It is more water-saving and efficient while self-cleaning.

[0026] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, clean water is injected through the first filtrate discharge pipe 13, and the clean water enters the plate frame 7 along the liquid outlet 10 to backwash the filter screen 11. The backwash water carrying the residual mud is discharged from the mud inlet pipe 14 and the second filtrate discharge pipe 15. During the backwashing process, the ultrasonic generator is connected to the terminal block 3 to power the ultrasonic transducer 4. The ultrasonic transducer 4 in the crossbeam 2 continuously releases ultrasonic waves. The ultrasonic waves are conducted to the inside of the plate frame 7 through the metal guide plate 5 and diffuse rapidly with water as the medium. Through the cavitation effect, the mud attached to the filter screen 11 is quickly peeled off, improving the cleaning efficiency. The terminal block 3, the ultrasonic transducer 4, and the control box 24 are electrically connected. This technology is existing technology and will not be described in detail.

[0027] Limiting grooves 17 are provided on both sides inside the limiting groove frame 16. Limiting steel sleeves 18 are fixedly connected to the front and rear ends of the left fixed plate 1 and the right fixed plate 12 respectively. Limiting strips 19 are welded to the outer side of the limiting steel sleeves 18. A first hydraulic cylinder 20 is installed inside the limiting steel sleeves 18. The shape and size of the limiting steel sleeves 18 and the limiting strips 19 are compatible with the shape and size of the limiting groove frame 16 and the limiting grooves 17. The limiting steel sleeves 18 can move up and down along the inside of the limiting groove frame 16. The height of the equipment can be adjusted to facilitate the layout of the conveyor belt.

[0028] Specifically, such as Figure 1 and Figure 4 As shown, the first hydraulic cylinder 20 inside the limiting steel sleeve 18 extends downward, and the left fixing plate 1 and the right fixing plate 12 can be raised along the inside of the limiting groove frame 16 by the reaction force. The limiting slide groove 17 and the limiting plate strip 19 can make them slide up and down smoothly and stably.

[0029] The bottom ends of the first filtrate discharge tube 13 and the second filtrate discharge tube 15 are respectively fixedly connected to sample ports 21. A sample collection valve 22 is installed at the bottom end of the sample ports 21. The interiors of the first filtrate discharge tube 13 and the sample ports 21 are connected, and the interiors of the second filtrate discharge tube 15 and the sample ports 21 are also connected, which facilitates the collection of samples for observation.

[0030] Specifically, such as Figure 1 and Figure 4 As shown, the sample collection valve 22 is opened to collect water samples. The water leaks out along the sample port 21, and the staff collects and observes it through a beaker.

[0031] Working principle: When using this utility model, firstly, the second hydraulic cylinder 25 extends and presses the plate frame 7 through the end plate 6. The mud is pumped in through the mud inlet pipe 14 and quickly diffuses through the mud inlet hole 9. The filter screen 11 catches the mud, and water enters the outlet hole 10 through the filter screen 11 and is discharged from the first filtrate discharge pipe 13 and the second filtrate discharge pipe 15. When cleaning is required, the mud injection is stopped, and clean water is injected through the first filtrate discharge pipe 13. The clean water enters the plate frame 7 along the outlet hole 10 to backwash the filter screen 11. The backwash water carries the residual mud and is discharged from the mud inlet pipe 14 and the second filtrate discharge pipe 15. During the backwashing process, the ultrasonic generator is connected to the terminal block 3 to power the ultrasonic transducer 4. The ultrasonic transducer 4 in the crossbeam 2 continuously releases ultrasonic waves. The ultrasonic waves are conducted to the inside of the plate frame 7 through the metal guide plate 5 and quickly diffuse through water. Through the cavitation effect, the mud attached to the filter screen 11 is quickly peeled off, improving the cleaning efficiency and reducing the overall water consumption. The sludge cake produced after sludge filtration needs to be discharged via a conveyor belt below the equipment. The height of the equipment can be adjusted according to the conveyor belt layout. The first hydraulic cylinder 20 inside the limiting steel sleeve 18 extends downwards, and through reaction force, it raises the left fixed plate 1 and right fixed plate 12 along the inside of the limiting groove frame 16. The limiting slide groove 17 and limiting strip 19 allow for smooth and stable up-and-down sliding. During filtration and cleaning, the sample collection valve 22 can be opened to collect water samples. Water leaks out along the sample port 21, and staff collect and observe it using a beaker.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A plate-and-frame filter press with self-cleaning function, comprising a left fixed plate (1) and a right fixed plate (12), characterized in that: Two sets of crossbeams (2) are fixedly connected between the left fixed plate (1) and the right fixed plate (12). A second hydraulic cylinder (25) is installed at the middle position on the left side of the left fixed plate (1). End plates (6) are fixedly connected to the output end of the second hydraulic cylinder (25) and the left side of the right fixed plate (12). Multiple sets of plate frames (7) are arranged between the two sets of end plates (6). Hooks (8) are fixedly connected to the front and rear ends of the plate frames (7). Filter screens (11) are covered at the front and rear ends of the plate frames (7). Mud inlets (9) are provided at the middle positions of the plate frames (7) and the filter screens (11). Liquid outlets are opened at the four corners on the left and right sides of the plate frames (7). (10) The upper and lower ends of the right front end of the right fixed plate (12) are respectively fixedly connected to the first filtrate discharge pipe (13), the upper and lower ends of the right rear end of the right fixed plate (12) are respectively fixedly connected to the second filtrate discharge pipe (15), the middle position of the right side of the right fixed plate (12) is fixedly connected to the mud inlet pipe (14), the front and rear ends of the left fixed plate (1) and the right fixed plate (12) are respectively provided with limit slots (16), the two sets of limit slots (16) are horizontally fixedly connected to the connecting rod (23), the outer side of the connecting rod (23) is fixedly connected to the control box (24), and the inside of the crossbeam (2) is provided with a self-cleaning component that is easy to clean and remove mud. The self-cleaning component includes a terminal block (3), which is located on the outer side of the crossbeam (2). A metal guide plate (5) is fixedly connected to the inner side of the crossbeam (2). Multiple sets of ultrasonic transducers (4) are installed inside the crossbeam (2).

2. The plate-and-frame filter press with self-cleaning function according to claim 1, characterized in that: The shape and size of the outside of the crossbeam (2) are adapted to the shape and size of the inside of the hook (8), and the inner side of the crossbeam (2) is fitted to the plate frame (7).

3. The plate-and-frame filter press with self-cleaning function according to claim 1, characterized in that: The end faces of the crossbeam (2) and the metal guide plate (5) are flush. The ultrasonic transducer (4) and the metal guide plate (5) are fixedly connected. The terminal block (3), the ultrasonic transducer (4), and the control box (24) are electrically connected.

4. The plate-and-frame filter press with a self-cleaning function according to claim 1, characterized in that: The liquid outlet (10), the first filtrate discharge pipe (13), and the second filtrate discharge pipe (15) are internally connected, and the mud inlet (9) and the mud inlet pipe (14) are internally connected.

5. The plate-and-frame filter press with self-cleaning function according to claim 1, characterized in that: Limiting grooves (17) are respectively opened on both sides inside the limiting groove frame (16). Limiting steel sleeves (18) are respectively fixedly connected to the front and rear ends of the left fixed plate (1) and the right fixed plate (12). Limiting strips (19) are welded to the outer side of the limiting steel sleeve (18). A first hydraulic cylinder (20) is installed inside the limiting steel sleeve (18). The shape and size of the limiting steel sleeve (18) and the limiting strip (19) are adapted to the shape and size inside the limiting groove frame (16) and the limiting groove (17). The limiting steel sleeve (18) can move up and down along the inside of the limiting groove frame (16).

6. The plate-and-frame filter press with a self-cleaning function according to claim 1, characterized in that: The bottom end of the first filtrate discharge pipe (13) and the second filtrate discharge pipe (15) is fixedly connected with a sample port (21), respectively, the bottom end of the sample port (21) is provided with a sample collection valve (22), the inside of the first filtrate discharge pipe (13) and the sample port (21) is communicated, the inside of the second filtrate discharge pipe (15) and the sample port (21) is communicated.

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