Lithium battery slurry demagnetizing device
By designing a lithium battery slurry demagnetization device, multi-stage demagnetization of the slurry is achieved using flow guides and cross-distributed magnetic plates. This solves the problem of uneven demagnetization effect in existing technologies, improves demagnetization efficiency and product quality, and reduces operational difficulty and environmental pollution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI GUOXUAN HIGH TECH POWER ENERGY
- Filing Date
- 2025-01-20
- Publication Date
- 2026-04-28
AI Technical Summary
Existing slurry demagnetization processes cannot effectively control the contact distance between the slurry and the magnetic rod, resulting in uneven and uncontrollable demagnetization effects, which affect product quality and the stability of the production process.
A demagnetizing device for lithium battery slurry was designed, including a demagnetizing component, a feeding and discharging component, a flow guide, and a magnetic component. The slurry is introduced through the feeding and discharging component, uniformly guided by the flow guide, and repeatedly circulated between the magnetic components to perform multi-stage demagnetization. Combined with cross-distributed magnetic plates and a power component, the slurry is ensured to have uniform contact and be demagnetized multiple times.
This technology enables efficient multi-stage demagnetization of slurry, improving demagnetization efficiency and product purity, ensuring operational continuity and stability, and reducing equipment maintenance costs and environmental pollution.
Smart Images

Figure CN224167674U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of demagnetizing equipment technology, and in particular to a demagnetizing device for lithium battery slurry. Background Technology
[0002] Existing slurry demagnetization processes primarily rely on introducing the slurry into a specialized demagnetizer equipped with magnetic rods. These rods are designed to effectively remove magnetic substances from conductive agent slurries containing magnetic impurities. However, while this method can achieve demagnetization to some extent, it has significant shortcomings in practical operation.
[0003] Specifically, current demagnetizer designs do not adequately consider the critical factor of the distance between the slurry and the magnetic rod, lacking an effective control mechanism for this distance. In practice, the slurry is often simply passed through the demagnetizer multiple times in an attempt to achieve a relatively thorough demagnetization effect. The drawback of this approach is that it cannot ensure that every part of the slurry makes uniform and effective contact with the magnetic rod. In other words, during the flow of the slurry through the demagnetizer, some material may come into contact with the magnetic rod multiple times due to factors such as the flow path, flow rate, or equipment structure, thus receiving sufficient demagnetization; while other material may fail to make sufficient contact with the magnetic rod for various reasons, or even completely avoid the magnetic rod, thus failing to achieve effective demagnetization.
[0004] The unevenness and uncontrollability of this demagnetization effect directly lead to inconsistent demagnetization quality. For slurries requiring high-precision demagnetization, this uncontrollability is undoubtedly a problem that urgently needs to be solved. It not only affects the performance and quality stability of the final product, but may also cause unnecessary interference and risks to subsequent production processes. Utility Model Content
[0005] The purpose of this invention is to overcome the shortcomings of the existing technology. To achieve the above purpose, a lithium battery slurry demagnetization device is adopted to solve the problems mentioned in the background technology.
[0006] A lithium battery slurry demagnetization device, comprising:
[0007] Demagnetizing assembly;
[0008] The infeed and discharge components are located on the outer sides of the top and bottom of the demagnetizing assembly;
[0009] A flow guide is installed at the top of the internal structure of the demagnetizing assembly; and
[0010] Magnetic components are located at the bottom of the flow guide;
[0011] The slurry is introduced into the demagnetizing unit through the feeding and discharging components, and then uniformly guided by the flow guides to repeatedly circulate between the magnetic components for multi-stage demagnetization.
[0012] As a further technical solution of this utility model: the feeding and discharging assembly includes a feeding pipe disposed on the outer side of the top of the demagnetizing assembly, and a discharging pipe disposed on the outer side of the bottom of the demagnetizing assembly. This design makes the feeding and discharging of slurry more convenient, while ensuring the continuity and efficiency of the demagnetizing process. It improves the automation level of the equipment and reduces the difficulty of operation.
[0013] As a further technical solution of this utility model: a diversion pipe is provided between the feed pipe and the guide component, and both the diversion pipe and the guide component are inclined structures;
[0014] The flow divider tube contains several fan-shaped flow dividers. This design better guides the slurry flow, ensuring uniform distribution of the slurry among the magnetic components. This further improves demagnetization efficiency, making the demagnetization process more uniform and stable.
[0015] As a further technical solution of this utility model: the magnetic component includes a first demagnetizing plate disposed on the inner wall of one side of the demagnetizing assembly, and a second demagnetizing plate disposed on the inner wall of the other side of the demagnetizing assembly;
[0016] The first and second demagnetizing plates are arranged in a cross-shaped configuration within the demagnetizing assembly. This cross-shaped arrangement creates a stronger magnetic field, improving the demagnetization effect. This enhances the equipment's demagnetization capability and improves the purity and quality of the product.
[0017] As a further technical solution of this utility model: both the first demagnetizing plate and the second demagnetizing plate are provided with openings, and the openings are all provided on the outer wall of the demagnetizing assembly;
[0018] Furthermore, each opening is equipped with a magnetic plate. This design facilitates the replacement and maintenance of the magnetic plates while ensuring the stability and continuity of the magnetic field. This reduces equipment maintenance costs and improves equipment reliability and lifespan.
[0019] As a further technical solution of this utility model: the top surfaces of the first demagnetizing plate and the second demagnetizing plate are provided with a plurality of longitudinally fixed baffles. The design of the baffles can prevent excessive accumulation or blockage of slurry during the demagnetization process, ensuring smooth flow of slurry. This further improves the demagnetization efficiency and ensures the stable operation of the equipment.
[0020] As a further technical solution of this utility model: Power components are provided on both sides of the demagnetizing assembly. Each power component includes a mounting shell disposed on both sides of the demagnetizing assembly, a fixing strip disposed on the magnetic plate, several base plates disposed inside the mounting shell, and a telescopic cylinder disposed outside the mounting shell. The power components provide power support for the movement and adjustment of the magnetic plate, ensuring the flexibility and controllability of the demagnetizing process. This improves the automation level of the equipment, making the demagnetizing process more precise and efficient.
[0021] As a further technical solution of this utility model: the driving end of the telescopic cylinder penetrates through the side wall of the mounting shell and is fixedly connected to the fixing strip. This design makes the movement and adjustment of the magnetic plate more convenient and stable. It enhances the flexibility and controllability of the equipment, and improves demagnetization efficiency and product quality.
[0022] As a further technical solution of this utility model: the top of the demagnetizing component is provided with a mounting base, and a plurality of nozzles are mounted on the mounting base. The output end of the nozzles penetrates into the inner cavity of the demagnetizing component, and an air inlet pipe is fixedly connected to one side of each nozzle, the air inlet pipe being connected to the nozzle. The nozzle design enables the spraying of gas or liquid into the demagnetizing component for further cleaning and demagnetization. This improves the demagnetization effect and ensures the purity and quality of the product.
[0023] As a further technical solution of this utility model: the first demagnetizing plate has a connected return pipe and a drain pipe on its tube wall, and a shut-off valve is provided at the end of the discharge pipe. Shut-off valves are also provided on the walls of both the return pipe and the drain pipe. The design of the return pipe and the drain pipe enables the recycling and treatment of waste materials and wastewater during the demagnetization process, protecting the environment. This reduces environmental pollution during production and improves the company's environmental image. Simultaneously, the shut-off valve at the end of the discharge pipe and the shut-off valves on the walls of both the return pipe and the drain pipe facilitate the control and adjustment of waste discharge, improving the flexibility and controllability of the equipment.
[0024] Compared with the prior art, the present invention has the following technical advantages:
[0025] By adopting the above technical solution, and integrating demagnetizing components, feeding and discharging components, flow guiding components, and magnetic components, efficient multi-stage demagnetization of slurry is achieved. The slurry is introduced into the demagnetizing component through the feeding and discharging components, and after being evenly distributed by the flow guiding components, it repeatedly flows between the magnetic components, effectively improving demagnetization efficiency and purity, ensuring product quality, and optimizing the operation process. Attached Figure Description
[0026] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings:
[0027] Figure 1 This is a front cross-sectional structural diagram of an embodiment disclosed in this application;
[0028] Figure 2 This is a three-dimensional structural diagram of an embodiment disclosed in this application;
[0029] Figure 3 This is a schematic diagram of the structure of the guide component according to an embodiment of this application;
[0030] Figure 4 This is a schematic diagram of the structure of the shunt tube according to an embodiment of this application.
[0031] In the diagram: 1. Demagnetizing assembly; 2. Diverter pipe; 3. Mounting base; 4. Nozzle; 5. Air inlet pipe; 6. Telescopic cylinder; 7. Feed pipe; 8. Discharge pipe; 9. Return pipe; 10. Drain pipe; 11. Fixing strip; 12. Base plate; 13. Magnetic plate; 14. Guide component; 15. Material baffle; 16. Diverter plate; 17. Mounting shell; 18. First demagnetizing plate; 19. Second demagnetizing plate. Detailed Implementation
[0032] 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.
[0033] Please refer to Figure 1 In this embodiment of the present invention, a lithium battery slurry demagnetizing device includes:
[0034] Demagnetizing component 1;
[0035] In this embodiment, the demagnetizing component 1 is specifically a demagnetizing barrel;
[0036] The infeed and discharge components are located on the outer sides of the top and bottom of the demagnetizing component 1;
[0037] Specifically, the feeding and discharging components are a feeding pipe 7 located on the outer side of the top of the demagnetizing component 1, and a discharging pipe 8 located on the outer side of the bottom of the demagnetizing component 1.
[0038] The guide 14 is located at the top of the inside of the demagnetizing assembly 1. Specifically, the guide 14 is a plate-shaped structure.
[0039] A magnetic component is located at the bottom of the flow guide 14;
[0040] The slurry is introduced into the demagnetizing component 1 through the feeding and discharging components, and is uniformly guided by the flow guide 14 and repeatedly circulated between the magnetic components to perform multi-stage demagnetization.
[0041] In this embodiment, a diversion pipe 2 is provided between the feed pipe 7 and the guide component 14, and both the diversion pipe 2 and the guide component 14 are inclined.
[0042] The inside of the diversion pipe 2 is provided with several diversion plates 16 arranged in a fan shape.
[0043] In this embodiment, the magnetic component includes a first demagnetizing plate disposed on the inner wall of one side of the demagnetizing assembly 1, and a second demagnetizing plate 19 disposed on the inner wall of the other side of the demagnetizing assembly 1;
[0044] The first demagnetizing plate 18 and the second demagnetizing plate 19 are distributed in a cross pattern within the demagnetizing assembly 1.
[0045] In this embodiment, both the first demagnetizing plate 18 and the second demagnetizing plate 19 are provided with openings, and the openings are all located on the outer wall of the demagnetizing assembly 1.
[0046] Furthermore, each of the openings is equipped with a magnetic plate 13.
[0047] like Figure 3 As shown in the figure, this is a schematic diagram of the flow guide component.
[0048] In a specific embodiment, the device includes a flow guide 14 disposed at the upper end of the demagnetizing assembly 1 and a diversion pipe 2 disposed between the demagnetizing assembly 1 and the feed pipe 7. The flow guide 14 is inclined, and its fixed end is fixedly connected to the inner wall of the demagnetizing assembly 1 near the diversion pipe 2. The other end of the flow guide 14 is lower than the fixed end of the flow guide 14 and has a gap between it and the inner wall of the demagnetizing assembly 1. A magnetic component is also disposed below the flow guide 14. The magnetic component includes several first demagnetizing plates 18 and second demagnetizing plates 19 arranged in a cross pattern. The first demagnetizing plates 18 and second demagnetizing plates 19 are both inclined and fixed to the inner wall of the demagnetizing assembly 1. The first demagnetizing plates 18 are located on the flow guide 14. Below, the fixed end of the first demagnetizing plate 18 is fixed to the inner wall away from the diversion pipe 2. The other end of the first demagnetizing plate 18 is lower than the fixed end of the first demagnetizing plate 18 and has a gap between it and the inner wall of the demagnetizing assembly 1. The second demagnetizing plate 19 is located between the two first demagnetizing plates 18. The fixed end of the second demagnetizing plate 19 is fixed to the inner wall near the diversion pipe 2. The other end of the second demagnetizing plate 19 is lower than the fixed end of the second demagnetizing plate 19 and has a gap between it and the inner wall of the demagnetizing assembly 1. Both the first demagnetizing plate 18 and the second demagnetizing plate 19 have openings. The openings are all located on the outer wall of the demagnetizing assembly 1. A magnetic plate 13 is provided in the openings of both the first demagnetizing plate 18 and the second demagnetizing plate 19.
[0049] The demagnetizing component 1 is equipped with power components on both its left and right sides;
[0050] like Figure 2As shown, the diagram is a schematic representation of the three-dimensional structure.
[0051] In this embodiment, power components are provided on both sides of the demagnetizing component 1. The power components include mounting shells 17 on both sides of the demagnetizing component 1, fixing strips 11 on the magnetic plate 13, a plurality of base plates 12 inside the mounting shells 17, and telescopic cylinders 6 on the outside of the mounting shells 17.
[0052] In this embodiment, the top surfaces of the first demagnetizing plate 18 and the second demagnetizing plate 19 are provided with a plurality of longitudinally fixed baffles 15.
[0053] In a specific implementation, through the setting of the magnetic components, during actual use, the slurry enters from the feed pipe 7, and is guided by the diversion pipe 2 and the guide component 14, so that the slurry flows evenly to the upper surface of the first demagnetizing plate 18. The first demagnetizing plate 18 then demagnetizes the slurry. The slurry demagnetized by the first demagnetizing plate 18 flows to the upper surface of the second demagnetizing plate 19, whereby the second demagnetizing plate 19 demagnetizes the slurry again. The slurry demagnetized by the second demagnetizing plate 19 then flows back to the first demagnetizing plate 19. On the upper surface of the demagnetizing plate 18, there are several first demagnetizing plates 18 and second demagnetizing plates 19 arranged in a cross pattern. The slurry flows repeatedly between the first demagnetizing plates 18 and the second demagnetizing plates 19 to achieve multi-stage demagnetization and further improve the demagnetization capacity. The slurry fully contacts the first demagnetizing plates 18 and the second demagnetizing plates 19, effectively reducing the magnetic content of the slurry. When the slurry flows from the bottom first demagnetizing plate 18 to the ground of the demagnetizing component 1, the slurry is discharged from the discharge pipe 8.
[0054] In this embodiment, the drive end of the telescopic cylinder 6 penetrates the side wall of the mounting shell 17 and is fixedly connected to the fixing strip 11.
[0055] In this embodiment, the top of the demagnetizing component 1 is provided with a mounting base 3, and a plurality of nozzles 4 are mounted on the mounting base 3. The output end of the nozzles is inserted into the inner cavity of the demagnetizing component 1. An air inlet pipe 5 is fixedly connected to one side of the nozzle 4, and the air inlet pipe 5 is connected to the nozzle 4.
[0056] In this embodiment, the first demagnetizing plate 18 has a connecting return pipe 9 and a drain pipe 10 on its pipe wall. The end of the discharge pipe 8 is provided with a shut-off valve, and both the return pipe 9 and the drain pipe 10 are provided with shut-off valves.
[0057] In specific implementation methods, such as Figure 4 As shown in the figure, it is a schematic diagram of the structure of the diversion pipe; the interior of the diversion pipe 2 is provided with several diversion plates 16 arranged in a fan shape;
[0058] With the baffle strip 15 and the diverter plate 16 in place, when the slurry enters the diverter pipe 2, the diverter plate 16, which is arranged in a fan shape inside the diverter pipe 2, guides the slurry evenly onto the guide member 14, so that the slurry flows evenly over the upper surface of the guide member 14 and into the first demagnetizing plate 18. When the slurry passes through the first demagnetizing plate 18 and the second demagnetizing plate 19, the magnetic material in the slurry will be adsorbed onto the upper surface by the first demagnetizing plate 18 and the second demagnetizing plate 19. The baffle strip 15 can prevent the magnetic material adsorbed on the upper surface from being carried away by the flowing slurry.
[0059] The power assembly includes a mounting shell 17 fixed to one side of the demagnetizing assembly 1 and a fixing strip 11 fixed to the side of the magnetic plate 13 away from the demagnetizing assembly 1. The mounting shell 17 has a plurality of base plates 12 inside. The base plates 12 are located on both sides of the bottom surface of the magnetic plate 13 and abut against the magnetic plate 13. There is a gap between the two base plates 12 on both sides of the bottom surface of the magnetic plate 13. A telescopic cylinder 6 is installed on the side of the mounting shell 17 away from the demagnetizing assembly 1. The output end of the telescopic cylinder 6 enters the side wall of the mounting shell 17 and is fixedly connected to the fixing strip 11.
[0060] With the power assembly in place, in actual use, the magnetic plate 13 is installed inside the openings of the first demagnetizing plate 18 and the second demagnetizing plate 19. When it is necessary to clean the inside of the demagnetizing assembly 1, the telescopic cylinder 6 is activated. The fixing bar 11 fixed at the output end of the telescopic cylinder 6 will slide the magnetic plate 13 out of the opening. At this time, the fixing bar 11 is located between the two base plates 12, and the magnetic plate 13 slides onto the base plate 12. When the output end of the telescopic cylinder 6 is fully retracted, the magnetic plate 13 will completely detach from the first demagnetizing plate 18 and the second demagnetizing plate 19. At this time, the magnetic material on the first demagnetizing plate 18 and the second demagnetizing plate 19 will not be affected by the magnetic plate 13, and the first demagnetizing plate 18 and the second demagnetizing plate 19 can be cleaned conveniently.
[0061] The top of the demagnetizing assembly 1 is provided with a mounting base 3, and a plurality of nozzles 4 are mounted on the mounting base 3. The output end of the nozzle 4 passes through the inner cavity of the demagnetizing assembly 1. An air inlet pipe 5 is fixedly connected to one side of the nozzle 4. The air inlet pipe 5 is connected to the nozzle 4. The first demagnetizing plate 18 is provided with a connected return pipe 9 and a drain pipe 10 on its pipe wall. The end of the discharge pipe 8 is provided with a shut-off valve. Both the return pipe 9 and the drain pipe 10 are provided with shut-off valves on their pipe walls.
[0062] With the nozzle 4 and air inlet pipe 5 in use, when cleaning the inside of the demagnetizing assembly 1, the feeding is stopped, the air blowing device is connected to the air inlet pipe 5, and the air blowing device is turned on so that the airflow enters the nozzle 4 from the air inlet pipe 5 and then enters the demagnetizing assembly 1 from the nozzle 4. At this time, the shut-off valve on the return pipe 9 is opened and the shut-off valve on the discharge pipe 8 is closed, so that the last material enters the return pipe 9. The slurry that enters the return pipe 9 will enter the demagnetizing assembly 1 again from the feed pipe 7 for demagnetization. After the slurry in the demagnetizing assembly 1 is discharged, the shut-off valve on the return pipe 9 is closed and the shut-off valve on the drain pipe 10 is opened to introduce the cleaning liquid from the feed pipe 7 so that the cleaning liquid washes the magnetic material on the first demagnetizing plate 18 and the second demagnetizing plate 19 clean. The cleaning liquid is discharged from the drain pipe 10. After the gas blown out by the nozzle 4 completely discharges the cleaning liquid inside the demagnetizing assembly 1, the demagnetizing assembly 1 can start the demagnetization work again.
[0063] 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 exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.
[0064] 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 demagnetizing device for lithium battery slurry, characterized in that, include: A demagnetizing assembly, wherein the demagnetizing assembly is a demagnetizing tank for containing slurry; The infeed and discharge components are located on the outer sides of the top and bottom of the demagnetizing assembly; A flow guide is installed at the top of the internal structure of the demagnetizing assembly; and Magnetic components are located at the bottom of the flow guide; The feeding and discharging assembly includes a feeding pipe disposed on the outer side of the top of the demagnetizing assembly, and a discharging pipe disposed on the outer side of the bottom of the demagnetizing assembly. A flow divider is provided between the feed pipe and the guide component, and both the flow divider and the guide component are inclined; the interior of the flow divider is provided with several flow divider plates distributed in a fan shape; The magnetic component includes a first demagnetizing plate disposed on the inner wall of one side of the demagnetizing assembly, and a second demagnetizing plate disposed on the inner wall of the other side of the demagnetizing assembly; the first demagnetizing plate and the second demagnetizing plate are distributed crosswise within the demagnetizing assembly; Both the first demagnetizing plate and the second demagnetizing plate have openings, and the openings are all located on the outer wall of the demagnetizing assembly; and each opening contains a magnetic plate. The slurry is introduced into the demagnetizing unit through the feeding and discharging components, and then uniformly guided by the flow guides to repeatedly circulate between the magnetic components for multi-stage demagnetization.
2. The lithium battery slurry demagnetizing device according to claim 1, characterized in that, The top surfaces of the first demagnetizing plate and the second demagnetizing plate are provided with a plurality of longitudinally fixed baffles.
3. The lithium battery slurry demagnetizing device according to claim 1, characterized in that, The demagnetizing assembly is equipped with power components on both sides. The power components include mounting shells on both sides of the demagnetizing assembly, fixing strips on the magnetic plate, several base plates inside the mounting shells, and telescopic cylinders on the outside of the mounting shells.
4. The lithium battery slurry demagnetizing device according to claim 3, characterized in that, The drive end of the telescopic cylinder passes through the side wall of the mounting housing and is fixedly connected to the fixing strip.
5. The lithium battery slurry demagnetizing device according to claim 4, characterized in that, The demagnetizing assembly has a mounting base on its top, on which several nozzles are mounted. The output end of each nozzle passes through the inner cavity of the demagnetizing assembly. An air inlet pipe is fixedly connected to one side of each nozzle, and the air inlet pipe is connected to the nozzle.
6. The lithium battery slurry demagnetizing device according to claim 5, characterized in that, The first demagnetizing plate has a connecting return pipe and a drain pipe on its tube wall. The end of the discharge pipe is equipped with a shut-off valve, and both the return pipe and the drain pipe are equipped with shut-off valves.