Coating slurry filter element cleaning device for lithium battery production

Abstract

The utility model discloses a coating slurry filter element cleaning device for lithium battery production, and belongs to the technical field of lithium battery production. The liquid outlet end of the solvent storage tank is communicated with the liquid inlet end of the diaphragm pump through a first material pipe, the liquid outlet end of the diaphragm pump is communicated with the liquid outlet end of the filter element in use through a second material pipe, the liquid inlet end of the filter element in use is communicated with the liquid inlet end of the solvent storage tank through a third material pipe, and the filter element is fixedly installed at the upper end of the supporting frame. And a manual valve is mounted on the material pipe I. According to the utility model, a clean solvent enters from the liquid outlet end when the filter element is used and is discharged from the liquid inlet end when the filter element is used, the filter element is continuously backwashed, and residues in the filter element are discharged, so that the purpose of cleaning the filter element is achieved, the filter element can be put into production again, the loss of the filter element is greatly reduced, the production cost is reduced, the environmental protection pressure is relieved, and the waste of production resources is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of coating slurry filter element cleaning devices for lithium battery production, belong to lithium battery production technical field. BACKGROUND

[0002] In the coating process of lithium battery production, to ensure coating quality, slurry needs to be filtered by static filter element before entering die for coating. The filtering process aims to effectively remove particulate impurities in the slurry, preventing scratches in the coating process caused by particulate residues, thereby avoiding quality defects in the pole piece.

[0003] However, the filter element in the prior art is used once and discarded after use. This mode is severely wasteful, especially in large-scale production, leading to a significant increase in filter element use costs, especially in high-frequency production scenarios, the consumption of filter elements increases dramatically, directly pushing up the overall production cost. At the same time, the disposal of discarded filter elements generates environmental pressure, and the need for recycling or harmless treatment increases additional environmental costs and management complexity.

[0004] In addition, a 40-minute slurry circulation process is required each time the filter element is replaced to complete the soaking operation of the filter element. This process not only causes unnecessary consumption of manual labor hours, but also causes slurry waste due to the suspension or inefficient operation of the production line during filter element replacement and soaking periods, further exacerbating the loss of production resources. SUMMARY

[0005] To solve the problems in the background art, the utility model provides a coating slurry filter element cleaning device for lithium battery production.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a coating slurry filter element cleaning device for lithium battery production, comprising a support frame, a second material pipe, a diaphragm pump, a first material pipe, a manual valve, a solvent storage tank, and a third material pipe; the outlet end of the solvent storage tank is connected to the inlet end of the diaphragm pump through the first material pipe, the outlet end of the diaphragm pump is connected to the outlet end of the filter element in use through the second material pipe, the inlet end of the filter element in use is connected to the inlet end of the solvent storage tank through the third material pipe, and the filter element is fixedly installed at the upper end of the support frame; the first material pipe is provided with a manual valve.

[0007] A filter mechanism is installed on the third material pipe, which comprises an outer housing and a filter screen installed inside the outer housing.

[0008] The filter screen is a plurality of filter screens with increasing mesh size from top to bottom.

[0009] The filter screen and the outer housing are fixed by plug-in installation.

[0010] The support frame is equipped with a vibration mechanism, which is correspondingly arranged with the filter element.

[0011] The vibration mechanism includes a top plate, a transmission rod, a connecting plate, a cam, a connecting rod, a motor, and a connecting wheel. The motor is horizontally positioned and fixedly connected to the support frame. The output shaft of the motor is coaxially and fixedly connected to the connecting wheel. The eccentric part of the connecting wheel is hinged to the upper end of the cam. The lower end of the cam is hinged to one end of the connecting rod. The other end of the connecting rod is hinged to the support frame. The middle part of the connecting rod is hinged to the lower end of the connecting plate. The upper end of the connecting plate is hinged to the lower end of the vertically positioned transmission rod. The upper end of the transmission rod is fixedly connected to the top plate. The transmission rod is slidably connected to the horizontal plate of the support frame. The top plate is correspondingly positioned to the filter element.

[0012] A pressure gauge and a pressure sensor are installed on the second feed pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention uses clean solvent that enters from the outlet end of the filter element during use and exits from the inlet end, continuously backwashing the filter element to remove residue and clean it, allowing it to be reused in production. This significantly reduces filter element wear, lowers production costs, alleviates environmental pressure, and minimizes waste of production resources. Simultaneously, a vibration mechanism is incorporated, which reciprocates the filter element via a top plate during solvent rinsing, improving the cleaning effect. Furthermore, the solvent containing residue is filtered through multiple layers of filter screens and returned to the solvent storage tank for reuse, further improving solvent utilization and saving costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 yes Figure 1 The main view;

[0017] Figure 3 yes Figure 1 Top view;

[0018] Figure 4 yes Figure 1 Side view;

[0019] Figure 5 This is a schematic diagram of the vibration mechanism;

[0020] Figure 6 yes Figure 5 The main view;

[0021] Figure 7 yes Figure 5 Side view. Detailed Implementation

[0022] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0023] A cleaning device for a coating slurry filter element in lithium battery production includes a support frame 2, a second feed pipe 4, a diaphragm pump 7, a first feed pipe 8, a manual valve 9, a solvent storage tank 10, and a third feed pipe 12. The outlet of the solvent storage tank 10 is connected to the inlet of the diaphragm pump 7 via the first feed pipe 8. The outlet of the diaphragm pump 7 is connected to the outlet of the filter element 1 during use via the second feed pipe 4. The inlet of the filter element 1 during use is connected to the inlet of the solvent storage tank 10 via the third feed pipe 12. The filter element 1 is fixedly installed on the upper end of the support frame 2. A manual valve 9 is installed on the first feed pipe 8. The first feed pipe 8, the second feed pipe 4, and the third feed pipe 12 all use rubber pipes and are secured with high-pressure clamps to prevent loosening and leakage during vibration.

[0024] A filter mechanism 11 is installed on the feed pipe 12. The filter mechanism 11 includes a housing and a filter screen installed inside the housing. The filter mechanism 11 is used to filter the solvent discharged from the filter element 1 in the opposite direction to that during use, to ensure the cleanliness of the solvent discharged into the solvent storage tank 10 and to ensure the recycling of the solvent.

[0025] The filter screen is a multi-layered filter screen with the mesh size increasing sequentially from top to bottom, such as a three-layered multi-layered filter screen with 150 mesh, 200 mesh, and 250 mesh, which can enhance the filtration effect by filtering through each layer.

[0026] The filter screen is installed and fixed to the outer casing by a sliding groove, which facilitates disassembly and cleaning of the filter screen by operators and prevents clogging.

[0027] The support frame 2 is equipped with a vibration mechanism 3, which is correspondingly arranged with the filter element 1.

[0028] The vibration mechanism 3 includes a top plate 13, a transmission rod 14, a connecting plate 15, a cam 16, a connecting rod 17, a motor 18, and a connecting wheel 19. The motor 18 is horizontally arranged and fixedly connected to the support frame 2 via a motor mounting base. The output shaft of the motor 18 is coaxially fixedly connected to the connecting wheel 19. The eccentric part of the connecting wheel 19 is hinged to the upper end of the cam 16 via a pin. The lower end of the cam 16 is hinged to one end of the connecting rod 17 via a pin. The other end of the connecting rod 17 is hinged to the support frame 2 via a pin. The middle part of the connecting rod 17 is hinged to the lower end of the connecting plate 15 via a pin. The upper end of the connecting plate 15 is hinged to the lower end of the vertically arranged transmission rod 14 via a pin. The upper end of the transmission rod 14 is fixedly connected to the top plate 13. The transmission rod 14 is slidably connected to the horizontal plate of the support frame 2. The top plate 13 is correspondingly arranged with the filter element 1.

[0029] The feed pipe 4 is equipped with a pressure gauge 5 and a pressure sensor 6. The pressure gauge 5 and pressure sensor 6 are safety devices; the diaphragm pump will automatically stop when the pressure exceeds the set upper limit to prevent safety accidents caused by excessive pressure.

[0030] The usage process of this utility model is as follows:

[0031] The solvent storage tank 10 contains clean solvent. The clean solvent flows into the diaphragm pump 7 through the manual valve 9, and is then delivered to the outlet end of the filter element 1 when it is in use. The solvent continuously washes the filter element 1 in the opposite direction to the direction of use. During this process, the motor 18 drives the connecting wheel 19 to rotate. The eccentricity of the connecting wheel 19 drives the cam 16 to swing, which in turn drives one end of the connecting plate 17 to swing up and down around the other end, which in turn drives the top plate 13 to swing up and down. The top plate 13 pushes the filter element 1 back and forth, so that the residue can be better removed from the filter element 1 during the washing process and flow out with the solvent. Then, the solvent containing impurities flows into the filtration mechanism 11 through the pipe 12. After filtering the residue, the clean solvent flows back to the solvent storage tank 10 for reuse, reducing solvent waste and saving costs.

[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 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 the 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.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cleaning device for coating slurry filter elements used in lithium battery production, characterized in that: The system includes a support frame (2), a second feed pipe (4), a diaphragm pump (7), a first feed pipe (8), a manual valve (9), a solvent storage tank (10), and a third feed pipe (12). The outlet of the solvent storage tank (10) is connected to the inlet of the diaphragm pump (7) through the first feed pipe (8). The outlet of the diaphragm pump (7) is connected to the outlet of the filter element (1) during use through the second feed pipe (4). The inlet of the filter element (1) during use is connected to the inlet of the solvent storage tank (10) through the third feed pipe (12). The filter element (1) is fixedly installed on the upper end of the support frame (2). A manual valve (9) is installed on the first feed pipe (8).

2. The cleaning device for coating slurry filter element in lithium battery production according to claim 1, characterized in that: The feed tube 3 (12) is equipped with a filter mechanism (11), which includes an outer shell and a filter screen installed inside the outer shell.

3. The cleaning device for coating slurry filter element in lithium battery production according to claim 2, characterized in that: The filter screen is a multi-layered filter screen with the mesh size increasing sequentially from top to bottom.

4. The cleaning device for coating slurry filter element in lithium battery production according to claim 3, characterized in that: The filter screen is fixed to the outer casing by plugging it in.

5. The cleaning device for coating slurry filter element in lithium battery production according to claim 1, characterized in that: A vibration mechanism (3) is installed on the support frame (2), and the vibration mechanism (3) is correspondingly arranged with the filter element (1).

6. A cleaning device for coating slurry filter elements used in lithium battery production according to claim 5, characterized in that: The vibration mechanism (3) includes a top plate (13), a transmission rod (14), a connecting plate (15), a cam (16), a connecting rod (17), a motor (18), and a connecting wheel (19); the motor (18) is horizontally arranged and fixedly connected to the support frame (2), the output shaft of the motor (18) is coaxially fixedly connected to the connecting wheel (19), the eccentric part of the connecting wheel (19) is hinged to the upper end of the cam (16), and the lower end of the cam (16) is hinged to the connecting wheel (19). One end of the connecting rod (17) is hinged, and the other end of the connecting rod (17) is hinged to the support frame (2). The middle part of the connecting rod (17) is hinged to the lower end of the connecting plate (15). The upper end of the connecting plate (15) is hinged to the lower end of the vertically arranged transmission rod (14). The upper end of the transmission rod (14) is fixedly connected to the top plate (13). The transmission rod (14) is slidably connected to the horizontal plate of the support frame (2). The top plate (13) is correspondingly arranged with the filter element (1).

7. A cleaning device for coating slurry filter elements used in lithium battery production according to claim 1 or 6, characterized in that: A pressure gauge (5) and a pressure sensor (6) are installed on the second feed pipe (4).

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