Material cleaning filter for lithium battery glue

By designing a material cleaning filter for lithium battery adhesives, which combines a vertical filter cartridge and an agitator with a rinsing assembly, the problem of filtering solid particulate materials in lithium battery adhesive production has been solved. This achieves efficient and convenient material separation and automated operation, reduces maintenance and labor intensity, and improves production efficiency and safety.

CN224141597UActive Publication Date: 2026-04-21CHENGDU TOP ENVIRONMENTAL PROTECTION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU TOP ENVIRONMENTAL PROTECTION EQUIP CO LTD
Filing Date
2025-05-09
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In the current production of lithium battery adhesives, the filtration and treatment of solid particulate materials suffers from problems such as easy clogging of the filter screen, incomplete cleaning, long cleaning time, low degree of automation, frequent maintenance, high labor intensity, and poor safety.

Method used

A material cleaning filter for lithium battery adhesive is designed, which adopts a vertical filter cartridge assembly and a stirrer, combined with a rinsing component, to achieve automated filtration and cleaning. The filter uses metal filter strips to form filter gaps, and an electronic control system controls the material inflow and outflow, resulting in a high degree of automation and reduced manual intervention.

Benefits of technology

It achieves efficient and convenient material separation, reduces the risk of filter clogging, reduces cleaning time and maintenance frequency, reduces labor intensity and maintenance costs, and improves production efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a material cleaning filter for lithium battery glue, which comprises a rack, and a filter cartridge assembly, a driving assembly and an electric control system which are arranged on the rack, the filter cartridge assembly comprises a shell and a filter cartridge, the filter cartridge is arranged in the shell, a gap is reserved between the filter cartridge and the shell, a filter cavity is arranged in the filter cartridge, and the driving assembly is arranged on the rack. A stirrer and a flushing assembly are mounted in the filtering cavity; a conical material collecting box with a discharge hole is arranged at the bottom of the shell; a top cover is arranged on the top of the shell and provided with a water inlet, a flushing opening, a breathing opening, a pressure gauge, a liquid level meter, an access hole, a sealing assembly and a driving assembly. An electric control system and a water outlet are arranged on the side of the shell; and the stirrer is provided with a frame type stirring paddle suitable for lithium battery glue. According to the utility model, the working efficiency is greatly improved, the raw material and liquid separation effect of the lithium battery glue material is improved, the device is not easy to block, the automation degree is high, the service life is long, the maintenance / operation is simple, the safety coefficient is increased, the economic benefit is effectively improved, and the operation cost is reduced.
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Description

Technical Field

[0001] This utility model relates to the technical field of material filtration and processing equipment, and in particular to a material cleaning filter for lithium battery adhesive. Background Technology

[0002] In the production of lithium battery adhesive, solid particulate materials need to be cleaned with liquid. The cleaned particulate materials are used to produce adhesive, and the liquid is discharged. Currently, a pump is often used to extract the liquid, and a simple nylon filter screen is installed in front of the pump to intercept solid particulate materials.

[0003] While the above-mentioned technical solutions have a certain filtering effect on solid materials, these methods still have many problems:

[0004] 1. The pump can only extract the supernatant. Solid particles are at the bottom of the liquid. If the pump is positioned at the bottom, it is easy to draw solid particles, causing the filter to become clogged.

[0005] 2. When the liquid is drawn from the supernatant, the liquid in the reactor is not completely drawn out, leaving a lot of residual liquid. This results in a longer subsequent cleaning time, and the particulate material needs to be cleaned multiple times.

[0006] 3. More frequent and longer cleaning times result in lower production efficiency and higher production costs.

[0007] 4. The filter screen is made of materials such as nylon mesh, which are easily damaged and clogged. It requires frequent replacement and manual removal of the filter screen for cleaning / replacement after the machine is shut down. The maintenance / repair process is relatively complicated, consumes a lot of maintenance time, and has high maintenance costs. Therefore, it reduces the utilization rate of the equipment, increases the failure rate, increases maintenance costs, and causes economic losses in production.

[0008] 5. Low level of automation, complex operation, and high labor intensity. For example, the water inlet pipe needs to be manually placed into the reactor, and the liquid level needs to be monitored at all times to avoid drawing solid particles from the bottom of the liquid level. Then, liquid needs to be manually added to clean the solid particles.

[0009] 6. The materials have a strong odor, require a high degree of manual labor, have a poor working environment, are harmful to human health, and have a low safety factor.

[0010] Therefore, it is necessary to design a material cleaning filter specifically for lithium battery adhesives. Utility Model Content

[0011] To solve the above-mentioned technical problems, this utility model provides a material cleaning filter for lithium battery adhesive. The filter screen can be selected according to the particle size of the material to be filtered and the filtration requirements. With the help of a stirrer and rinsing components, the material passing through the filter screen can be fully filtered and separated, and the purpose of material cleaning and separation can be achieved easily, conveniently and efficiently.

[0012] The objective of this invention is achieved through the following technical solution:

[0013] A material cleaning filter for lithium battery adhesive includes a frame and a filter cartridge assembly, a drive assembly, and an electrical control system mounted on the frame. The filter cartridge assembly is mounted above the frame, the drive assembly is mounted above the filter cartridge assembly, and the electrical control system is mounted on the side wall of the filter cartridge assembly.

[0014] The filter cartridge assembly is a vertical filter cartridge assembly, including a vertical cylindrical outer shell and a vertical filter cartridge placed inside the outer shell. A gap is left between the outer shell and the filter cartridge. The filter cartridge contains a filter chamber, in which an agitator and a rinsing assembly are installed. The filter cartridge includes several annular metal fixing strips arranged longitudinally and several metal filter strips welded to the inner side of the annular metal fixing strips. The metal filter strips are evenly arranged along the axial direction to form the filter wall of the filter cartridge. There are filter gaps between the metal filter strips. The metal filter strips and the metal fixing strips form a filter screen.

[0015] The top of the housing of the filter cartridge assembly is provided with a top cover, on which a water inlet, a rinsing port, a breather, a pressure gauge, a level gauge, an inspection port, a sealing assembly, and a drive assembly are installed.

[0016] The bottom of the filter cartridge assembly housing is a conical collection box, and a discharge port is provided at the bottom of the collection box;

[0017] The filter cartridge assembly housing has a water outlet located on the side wall near the bottom.

[0018] The agitator includes an agitator shaft and a frame-type agitator blade. The upper end of the agitator shaft is connected to the drive assembly, and the lower end of the agitator shaft is fixedly connected to the frame-type agitator blade. The lower part of the frame-type agitator blade is triangular in shape and matches the taper of the conical collection box.

[0019] Furthermore, the filter cartridge has a filtration slit width of 10-100 micrometers.

[0020] Furthermore, the metal filter strip is a wedge-shaped strip, with the pointed end of the wedge-shaped section of the metal filter strip facing outward and welded to the metal fixing strip; the metal fixing strip is a wedge-shaped strip, with the pointed end of the wedge-shaped section of the metal fixing strip welded to the pointed corner wall of the wedge-shaped section of the metal filter strip.

[0021] Furthermore, the metal fixing strip is made of stainless steel wire.

[0022] Furthermore, the rinsing assembly is installed at the upper opening of the filter cartridge assembly and includes a rinsing pipe and nozzles; the rinsing pipe includes a straight pipe and an annular pipe that are connected, the annular pipe and the filter cartridge assembly are concentric, the straight pipe is arranged between the inner diameters of the annular pipe, and the lower ends of the straight pipe and the annular pipe are provided with a number of nozzles facing the filter chamber.

[0023] Furthermore, the drive component is positioned above the water outlet.

[0024] Furthermore, the inlet, outlet, and discharge port are equipped with solenoid valves or pneumatic valves, which control the opening and closing of the material inlet and outlet.

[0025] The working process of this utility model with the above-described structure is as follows:

[0026] First, turn on the electrical control system, power on the drive components, introduce water into the inlet and solid particles into the feed inlet, and start the agitator. When the liquid level height set by the level gauge is reached, the water inlet and feed inlet will automatically close.

[0027] Then, the agitator operates, and the frame-type agitator rotates to ensure that the liquid and solid particles come into full contact and mix, thus cleaning the solid particles. The cleaning time can be preset as required. When the set cleaning time is reached, the outlet valve automatically opens, and the liquid in the material flows out through the gaps in the filter cartridge and is discharged from the outlet, while the solid particles are intercepted inside the filter cartridge. If multiple cleaning cycles are required depending on the actual situation, when the liquid is discharged and the liquid level in the filter cartridge reaches the set level, the outlet valve automatically closes, the inlet opens, and water is introduced, and this process is repeated.

[0028] Subsequently, after the cleaning requirements are met, when the liquid is discharged and the liquid level in the filter cartridge reaches the set level, the outlet valve closes. At the same time, as the water is discharged, solid particles are deposited in the conical collection box. Then, the outlet of the conical collection box is opened to discharge the solid particles. After the material is discharged, the discharge valve is automatically closed.

[0029] During operation, the rinsing component can also automatically rinse the inner surface of the filter cartridge. This can be done by setting the time, such as setting how long to rinse before stopping rinsing and how often to rinse.

[0030] As can be seen, through the above structural design, this utility model has the following advantages:

[0031] 1. This utility model filter uses high-quality metal wedge strips to make a vertical filter cartridge with precise gaps, extremely smooth surface, easy cleaning, high strength, not easy to clog, not easy to deform, and extremely long service life. It is especially suitable for cleaning and filtering materials such as lithium battery adhesives.

[0032] 2. The filter of this utility model is installed on the same frame, with a compact overall structure, small footprint, and simple installation. It can be used by simply placing the whole unit on a flat surface where it can be used, resulting in low installation cost.

[0033] 3. This utility model filter does not only filter the supernatant, nor does it require manual monitoring of the liquid level. It is simple to operate, has a short cleaning time, few cleaning cycles, and low manual labor intensity.

[0034] 4. The filter cartridge of this utility model is easy to replace. Filter cartridges with the corresponding filter gap width can be used as needed, and the replacement process is simple.

[0035] 5. The filter of this utility model has a low overall failure rate, is easy to maintain, has a short maintenance time, and low maintenance cost.

[0036] 6. This utility model filter has an automatic flushing function, which avoids particulate matter clogging the filter cartridge and reduces the cost of manual cleaning and downtime cleaning.

[0037] 7. This utility model filter can operate continuously and automatically, greatly reducing manual labor and ensuring a high safety factor. Attached Figure Description

[0038] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0039] Figure 2 This is a front view structural diagram of the present invention.

[0040] Figure 3 This is a schematic diagram of the left-side structure of this utility model.

[0041] Figure 4 for Figure 3 A schematic diagram of the AA cross-sectional structure.

[0042] Figure 5 This is a top view of the structure of this utility model.

[0043] Figure 6 for Figure 3 Schematic diagram of the BB cross-section structure.

[0044] Figure 7 This is a bottom view of the structure of this utility model.

[0045] Figure 8 This is a three-dimensional schematic diagram of the stirrer of this utility model.

[0046] Figure 9 This is a top view of the stirrer of this utility model.

[0047] Figure 10 This is a three-dimensional schematic diagram of the flushing assembly of this utility model.

[0048] Figure 11 This is a bottom view of the flushing assembly of this utility model.

[0049] Figure 12 This is a three-dimensional structural diagram of the filter cartridge of this utility model.

[0050] Figure 13 This is a front view structural diagram of the filter cartridge of this utility model.

[0051] Figure 14 for Figure 13 A schematic diagram of the CC cross-section of the middle filter cartridge.

[0052] Figure 15 This is a top view of the filter cartridge of this utility model.

[0053] The attached diagram is labeled as follows: 1. Inlet, 2. Drive assembly, 3. Electrical control system, 4. Outlet, 5. Discharge outlet, 6. Frame, 7. Agitator shaft, 8. Sealing assembly, 9. Nozzle, 10. Flushing pipe, 11. Housing, 12. Filter cartridge, 13. Agitator, 14. Level gauge, 15. Flushing port, 16. Breathing port, 17. Pressure gauge, 18. Inspection port, 19. Feed inlet, 20. Metal filter strip, 21. Metal fixing strip, 22. Gap. Detailed Implementation

[0054] The structure and working process of this utility model will be described below with reference to the accompanying drawings.

[0055] Example 1

[0056] like Figure 1-7 As shown, a material cleaning filter for lithium battery adhesive includes a frame 6 and a filter cartridge assembly, a drive assembly 2, and an electrical control system 3 mounted on the frame 6. The filter cartridge assembly is mounted above the frame 6, the drive assembly 2 is mounted above the filter cartridge assembly, and the electrical control system 3 is mounted on the side wall of the filter cartridge assembly. The top of the outer shell 11 of the filter cartridge assembly is provided with a top cover, on which are installed a water inlet 1, a rinsing port 15, a breather 16, a pressure gauge 17, a level gauge 14, an inspection port 18, a sealing assembly 8, and the drive assembly 2. The bottom of the outer shell 11 of the filter cartridge assembly is a conical collection box, and the bottom of the collection box is provided with a discharge port 5. The side wall of the outer shell 11 of the filter cartridge assembly is provided with a water outlet 4 near the bottom.

[0057] like Figure 4 , 12As shown, the filter cartridge assembly is a vertical filter cartridge assembly, including a vertical cylindrical outer shell 11 and a vertical filter cartridge 12 placed inside the outer shell 11. A gap is left between the outer shell 11 and the filter cartridge 12. The filter cartridge 12 is a filter chamber, and an agitator and a rinsing assembly are installed inside the filter chamber. The filter cartridge 12 includes several annular metal fixing strips 21 arranged longitudinally and evenly, and several metal filter strips 20 welded to the inner side of the annular metal fixing strips 21. The metal filter strips 20 are evenly arranged along the axial direction to form the filter wall surface of the filter cartridge 12. There are filter gaps 22 between the metal filter strips 20. The width of the filter gaps 22 is 10-100 micrometers. The metal filter strips 20 and the metal fixing strips 21 form a filter mesh surface.

[0058] like Figure 8-9 The agitator includes a stirring shaft 7 and a frame-type stirring paddle 13. The upper end of the stirring shaft 7 is connected to the drive assembly 2, and the lower end of the stirring shaft 7 is fixedly connected to the frame-type stirring paddle 13. The lower part of the frame-type stirring paddle 13 is triangular in shape and matches the taper of the conical collection box. Compared with the prior art, this stirring method is more conducive to the full mixing and contact of liquid and solid particulate materials, which can improve cleaning efficiency and also facilitate the discharge of particulate materials.

[0059] Compared with the existing technology, the structure of this utility model has a higher filtration effect, is less likely to cause blockage of the filter gap 22, has a longer service life, a higher degree of automation, greatly improves the filtration and separation effect and working efficiency, and reduces operating and maintenance costs.

[0060] Example 2

[0061] like Figure 10-11 As shown, based on the basic structure of Embodiment 1, the further design of the rinsing assembly is as follows:

[0062] The rinsing assembly is installed at the upper opening of the filter cartridge assembly and includes a rinsing pipe 10 and nozzles 9. The rinsing pipe 10 includes a straight pipe and an annular pipe that are connected. The annular pipe is concentric with the filter cartridge assembly. The straight pipe is arranged between the inner diameters of the annular pipe. Several nozzles 9 facing the filter chamber are opened at the lower ends of the straight pipe and the annular pipe.

[0063] Compared to existing technologies, the rinsing component in this embodiment is an automatic rinsing method, which can automatically rinse the inner surface of the filter cartridge 12. The rinsing time can be set, such as setting how long to rinse before stopping rinsing and how often to rinse, which avoids particulate matter clogging the filter cartridge 12 and reduces the cost of manual cleaning and downtime.

[0064] Example 3

[0065] like Figure 13-15As shown, based on the basic structure of Embodiment 1, the metal filter strip 20 is a wedge-shaped strip, and the pointed end of the wedge-shaped strip section of the metal filter strip 20 is welded to the metal fixing strip 21 with the pointed end facing outward. The metal fixing strip 21 is a wedge-shaped strip, and the pointed end of the wedge-shaped strip section of the metal fixing strip 21 is welded to the pointed corner wall of the wedge-shaped strip section of the metal filter strip 20.

[0066] Furthermore, the metal fixing strip 21 can be made of stainless steel wire.

[0067] The filter cartridge 12 can be designed with a reinforcing frame inside to improve the stability of the rotating filter.

[0068] Example 4

[0069] Based on the aforementioned embodiments, further design:

[0070] The drive assembly 2 is installed on the water inlet pipe side and is positioned higher than the water outlet 4.

[0071] The inlet 1, outlet 4, and discharge outlet 5 can be equipped with solenoid valves or pneumatic valves, which control the opening and closing of the inlet 1, outlet 4, and discharge outlet 5.

[0072] The working process and cleaning process of the material cleaning filter for lithium battery adhesive designed based on Examples 1-6 are as follows:

[0073] Step 1: Place the present invention on a workable surface, determine the appropriate filter gap 22 based on the size of the solid particles in the material to be filtered and the requirements to be met after filtration, and install the appropriate filter cartridge 12.

[0074] Step 2: Turn on the electrical control system 3, power on the drive component 2, introduce water into the inlet 1, introduce solid particles into the feed inlet 19, start the agitator, and when the liquid level height set by the level gauge 14 is reached, the inlet 1 and feed inlet 19 will automatically close.

[0075] Step 3: The agitator operates, and the frame-type agitator 13 rotates to allow the liquid and solid particles in the lithium battery adhesive to come into full contact and mix, thus cleaning the solid particles.

[0076] Step 4: The cleaning time can be set according to the time. When the cleaning time is reached, the outlet valve 4 will open automatically, and the liquid in the material will flow out through the filter gap 22 and be discharged from the outlet 4. The solid particles will be intercepted in the filter cartridge 12 by the filter gap 22. If necessary, multiple cleanings may be required. When the liquid level in the filter cartridge 12 reaches the set liquid level, the outlet valve 4 will close automatically, and the inlet 1 will open to allow water to flow in. This process will be repeated.

[0077] Step 5: After the cleaning requirements are met, the water is drained from outlet 4 and the valve of outlet 4 is closed. At the same time, as the water is drained, the solid particles are deposited in the conical collection box. Then, the outlet 5 of the conical collection box is opened to discharge the solid particles.

[0078] Step 6: During operation, the rinsing component can also automatically rinse the inner surface of the filter cartridge 12. This can be done by setting the time, such as setting how long to rinse before stopping rinsing and how often to rinse.

Claims

1. A material washing filter for lithium battery glue, characterized in that: Includes a frame (6) and a filter cartridge (12) assembly, a drive assembly (2) and an electrical control system (3) mounted on the frame (6). The filter cartridge (12) assembly is mounted on top of the frame (6), the drive assembly (2) is mounted on top of the filter cartridge (12) assembly, and the electrical control system (3) is mounted on the side wall of the filter cartridge (12) assembly. The filter cartridge (12) assembly is a vertical filter cartridge (12) assembly, including a vertical cylindrical shell (11) and a vertical filter cartridge (12) placed inside the shell (11). There is a gap between the shell (11) and the filter cartridge (12). The filter cartridge (12) is a filter chamber, and a stirrer and a rinsing assembly are installed inside the filter chamber. The filter cartridge (12) includes several annular metal fixing strips (21) arranged evenly in the longitudinal direction and several metal filter strips (20) welded to the inner side of the annular metal fixing strips (21). The metal filter strips (20) are evenly arranged in the axial direction to form the filter wall of the filter cartridge (12). There are filter gaps (22) between the metal filter strips (20). The metal filter strips (20) and the metal fixing strips (21) form a filter screen. The filter cartridge (12) assembly has a top cover on the top of the housing (11), and the top cover is equipped with a water inlet (1), a rinsing port (15), a breathing port (16), a pressure gauge (17), a level gauge (14), an inspection port (18), a sealing assembly (8), and a drive assembly (2). The bottom of the filter cartridge (12) assembly housing (11) is a conical collection box, and the bottom of the collection box is provided with a discharge port (5). The filter cartridge (12) assembly housing (11) has an outlet (4) near the bottom on the side wall. The agitator includes an agitator shaft (7) and a frame agitator. The upper end of the agitator shaft (7) is connected to the drive assembly (2), and the lower end of the agitator shaft (7) is fixedly connected to the frame agitator. The lower part of the frame agitator is triangular and matches the taper of the conical collection box.

2. The material washing filter for lithium battery glue according to claim 1, characterized in that: The filter cartridge (12) has a filtration gap (22) width of 10-100 micrometers.

3. A material washing filter for lithium battery glue according to claim 1 or 2, characterized in that: The metal filter strip (20) is a wedge-shaped strip, with the pointed end of the wedge-shaped strip section of the metal filter strip (20) facing outward and welded to the metal fixing strip (21).

4. The material washing filter for lithium battery glue as claimed in claim 3, wherein: The metal fixing strip (21) is a wedge-shaped strip, and the pointed end of the wedge-shaped strip section of the metal fixing strip (21) is welded to the pointed wall of the wedge-shaped strip section of the metal filter strip (20).

5. The material washing filter for lithium battery glue as claimed in claim 2, wherein: The metal fixing strip (21) is made of stainless steel wire.

6. The material wash filter for lithium battery glue as claimed in claim 1, wherein: The flushing assembly is installed at the upper opening of the filter cartridge (12) assembly and includes a flushing pipe (10) and nozzles (9). The flushing pipe (10) includes a straight pipe and an annular pipe that are connected. The annular pipe is concentric with the filter cartridge (12) assembly. The straight pipe is arranged between the inner diameters of the annular pipe. Several nozzles (9) facing the filter chamber are opened at the lower ends of the straight pipe and the annular pipe.

7. The material wash filter for lithium battery glue as claimed in claim 1, wherein: The drive component (2) is higher than the outlet (4).

8. The material cleaning filter for lithium battery adhesive as described in claim 1, characterized in that: The inlet (1), outlet (4), and discharge outlet (5) are equipped with solenoid valves or pneumatic valves, which control the opening and closing of the inlet (1), outlet (4), and discharge outlet (5).