Fluid demagnetizing device
By designing a fluid magnetic removal device including a cavity, agitating assembly and sleeve during the preparation of lithium-ion battery materials, the problem of low fluid magnetic removal efficiency is solved, and the efficient removal of magnetic foreign matter is achieved, ensuring the safety performance of the battery.
Patent Information
- Application Number
- CN202420022026.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-04
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-01-04
AI Technical Summary
During the preparation of existing lithium-ion battery materials, the fluid removal efficiency is low, which makes it difficult to effectively remove magnetic metal impurities, affecting the safety performance of the battery.
Design a fluid demagnetization device, including a cavity, agitating assembly and a sleeve, to form a swirl through stirring, so that magnetic foreign matter is adsorbed on the surface of the sleeve, and demagnetization is achieved through magnet removal and water erosion, thereby improving the demagnetization efficiency .
It significantly improves the efficiency of fluid demagnetization, facilitates magnet disassembly and maintains, and ensures the safety performance of lithium-ion battery materials.
Smart Images
Figure CN222152392U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of hydrometallurgy, and in particular to a fluid demagnetization device. Background Art
[0002] Lithium-ion batteries have been widely used due to their energy storage, fast charge and discharge, long cycle life, and environmental friendliness. Materials are one of the key factors that determine the performance of lithium-ion batteries. However, during the preparation of materials, magnetic metal impurities will inevitably be introduced into the materials, which will seriously affect the safety performance of lithium-ion batteries. Therefore, demagnetization is a key process in the production of lithium battery materials.
[0003] At present, in the production process of preparing materials, the demagnetization structure for the material fluid is generally set on the conveying pipeline, and the pipeline demagnetizer set on the conveying pipeline is used to demagnetize the fluid in the conveying pipeline, so as to achieve the purpose of removing magnetic foreign matter in the fluid. However, since the fluid generally carries magnetic metal impurities, in order to avoid the fluid being deposited in the conveying pipeline and causing pipeline blockage, the fluid flow rate inside the conveying pipeline is generally fast, and the time for the fluid to pass through the pipeline demagnetizer is very short. The demagnetization effect of the pipeline demagnetizer is very limited. Moreover, limited by the conveying flow rate of the conveying pump, the demagnetization efficiency of the pipeline demagnetizer is low. Utility Model Content
[0004] The purpose of the present application is to provide a fluid demagnetization device capable of quickly removing magnetic foreign matter in a fluid.
[0005] In order to achieve the above purpose, this application adopts the following technical solutions:
[0006] A fluid demagnetization device comprises a cavity, a feed port for fluid entry is arranged on the cavity, a discharge port for fluid discharge and a slag discharge port for discharging magnetic foreign matter are arranged at the bottom of the cavity, a stirring assembly for stirring the fluid is arranged in the cavity; a sleeve is arranged in the cavity, one end of the sleeve extends outside the cavity, and an opening is arranged at the end of the sleeve extending outside the cavity, and a magnet is arranged in the sleeve and is disassembled from the sleeve through the opening.
[0007] The fluid enters the cavity through the feed port, and the stirring component starts stirring, so that the fluid in the cavity forms a vortex. Under the action of centrifugal force and friction, the magnetic foreign matter in the fluid moves closer to the inner wall of the cavity. When the magnetic foreign matter approaches the sleeve, it will be adsorbed on the surface of the sleeve under the influence of the magnet in the sleeve, thereby completing the demagnetization of the fluid. When the magnetic foreign matter on the surface of the sleeve accumulates to a certain amount, the fluid is discharged from the cavity through the discharge port, and the magnet is removed through the opening of the sleeve, so that the part of the sleeve located in the cavity loses its magnetic force. The magnetic foreign matter then falls to the bottom of the cavity under the action of gravity, and the cavity is flushed with water from an external water source, and the magnetic foreign matter is discharged from the slag discharge port at the bottom of the cavity, thus completing the process of demagnetizing the fluid. After the slag discharge is completed, the slag discharge port is closed, and the magnet is reinserted to start the next cycle of demagnetization process.
[0008] In some embodiments, there are multiple sleeves, which are arranged along the circumference of the cavity, so that the vortex in the cavity can fully contact the magnet in each sleeve, thereby improving the demagnetization effect of the demagnetization device.
[0009] In some embodiments, the sleeve is arranged in the cavity along the vertical direction to prevent the sleeve from disturbing the vortex structure of the fluid in the cavity and to enable the sleeve to contact more magnetic foreign matter, thereby improving the demagnetization effect of the demagnetization device.
[0010] In some embodiments, the stirring assembly includes a stirring shaft, and a plurality of blade groups are provided on the stirring shaft for stirring the fluid, so that the magnetic foreign matter in the fluid is fully dispersed. The plurality of blade groups are spaced apart along the axial direction of the stirring shaft, and gaps for the flow of the fluid are formed between adjacent blade groups, so that the demagnetization device can start stirring for fluids with different liquid levels, so that the fluid is fully mixed and flows between adjacent blade groups, ensuring that the magnetic foreign matter in the fluid moves to the sleeve position of the cavity.
[0011] In some embodiments, the bottom of the cavity gradually converges from the inner wall of the cavity to the location of the discharge port or the slag discharge port, so that the fluid in the cavity can flow out through the discharge port or the slag discharge port. The sleeve is arranged at the bottom of the cavity and extends into the cavity through the junction between the bottom of the cavity and the inner wall of the cavity, ensuring that the sleeve can contact the fluid at the bottom of the cavity, so that the magnetic foreign matter on the fluid is fully adsorbed on the sleeve.
[0012] In some embodiments, a steam pipe is provided outside the cavity, and a steam inlet connected to the steam pipe is provided on the cavity. When the fluid needs to react and heat up, steam is introduced into the steam pipe to heat the fluid in the cavity. The steam pipe is coiled on the outer wall of the cavity, so that the cavity can be surrounded and heated by the steam coil, so that the required temperature environment is formed inside the cavity.
[0013] In some embodiments, a sensor for monitoring the liquid level in the cavity is provided on the cavity. When the liquid level in the cavity detected by the sensor reaches the liquid level required by the process, the stirring component can start stirring to demagnetize the fluid in the cavity.
[0014] Compared with the prior art, the fluid demagnetization device of the embodiment of the present application has the following beneficial effects:
[0015] (1) By setting a sleeve in the cavity and providing an opening at the end of the sleeve extending outside the cavity, the magnet can be removed from the sleeve through the opening, which is convenient for operators to remove the magnet and complete the operation of cleaning magnetic foreign matter in the cavity, and is also convenient for operators to replace the magnet on a daily basis and perform maintenance on the demagnetization device.
[0016] (2) By means of the stirring assembly disposed in the cavity, the fluid can be fully stirred to form a vortex, and the magnetic foreign matter carried by the fluid can flow to the position of the sleeve under the action of stirring, thereby improving the demagnetization efficiency of the demagnetization device. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the structure of the fluid demagnetization device in the embodiment of the present application;
[0018] Figure 2 yes Figure 1 A partial enlarged view of middle A.
[0019] In the figure, 1, demagnetization tank; 2, cavity; 3, feed port; 4, sensor; 5, observation hole; 6, stirring assembly; 6a, stirring motor; 6b, coupling; 6c, stirring shaft; 6d, blade group; 7, discharge port; 8, slag discharge port; 9, sleeve; 9a, opening; 10, magnetic rod; 11, docking flange; 12, steam pipe; 13, steam inlet; 14, drain port. DETAILED DESCRIPTION
[0020] The specific implementation methods of the present application are further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but are not intended to limit the scope of the present application.
[0021] In the description of the present application, it should be understood that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, it may be internal connectivity between two elements or an interactive relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.
[0022] In the description of the present application, it should be understood that the terms "height", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. used in the present application to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.
[0023] In the description of this application, it should be understood that the terms "first" and "second" are used in this application for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features.
[0024] Example
[0025] like Figure 1-2 As shown, a fluid demagnetization device preferably implemented in the embodiment of the present application includes a demagnetization tank 1, and a cavity 2 is arranged in the demagnetization tank 1. A feed port 3 for fluid to enter, a sensor 4 and an observation hole 5 are arranged on the top of the demagnetization tank 1. The sensor 4 is used to monitor the liquid level height in the cavity 2, and the observation hole 5 is used for the operator to observe the working conditions in the cavity 2.
[0026] A stirring motor 6a is also provided on the top of the demagnetization tank 1. The stirring motor 6a is connected to a stirring shaft 6c extending into the cavity 2 through a coupling 6b. Three blade groups 6d are provided on the stirring shaft 6c. Each blade group 6d is composed of two stirring paddles. The three blade groups 6d are spaced apart along the axial direction of the stirring shaft 6c. A gap for fluid flow is formed between adjacent blade groups 6d. The three blade groups 6d, the stirring shaft 6c, and the stirring motor 6a constitute the stirring assembly 6 of the fluid demagnetization device of this embodiment.
[0027] like Figure 1 As shown, the bottom of the demagnetization tank 1 is provided with a discharge port 7 for fluid discharge and a slag discharge port 8 for discharging magnetic foreign matter, and the bottom of the demagnetization tank 1 tends to gradually converge from the inner wall of the cavity 2 to the position of the slag discharge port 8. Near the bottom of the demagnetization tank 1, a plurality of sleeves 9 are provided at the junction between the bottom of the cavity 2 and the inner wall of the cavity 2. The plurality of sleeves 9 are arranged along the circumference of the cavity 2, and each sleeve 9 is connected to the inner wall of the cavity 2 in the vertical direction through a mounting structure. There is a certain gap between the sleeve 9 and the inner wall of the cavity 2, so that the magnetic foreign matter can be adsorbed on the circumferential surface of the sleeve 9. In some embodiments, the sleeve 9 can also be directly provided on the inner wall of the cavity 2 in the vertical direction so that the sleeve 9 is firmly connected to the cavity 2.
[0028] In this embodiment, one end of the sleeve 9 is sealed and arranged in the cavity 2, and the other end of the sleeve 9 extends outside the cavity 2, and the end of the sleeve 9 extending outside the cavity 2 is provided with an opening 9a, and a magnetic rod 10 as a magnet is arranged in the sleeve 9, and the opening 9a of the sleeve 9 is provided with a docking flange 11, and the opening 9a of the sleeve 9 is sealed by the docking flange 11, so that the magnetic rod 10 is installed and fixed inside the sleeve 9. The docking flange 11 cooperates with the opening 9a of the sleeve 9, so that the magnetic rod 10 and the sleeve 9 realize a detachable installation structure.
[0029] In the application of the fluid demagnetization device, the magnet can be a permanent magnetic material or a soft magnetic material. When the fluid demagnetization device performs demagnetization, the magnet should form a magnetic field in the cavity 2 of the demagnetization tank 1 to make the magnetic foreign matter adsorbed to the surface of the sleeve 9. In addition to the magnetic rod 10, the magnet can also be designed with a block structure, a sheet structure, a ring structure, etc. The magnet can enter and exit the sleeve 9 through the opening 9a of the sleeve 9, so that the operator can remove and replace the magnet.
[0030] The outer wall of the demagnetization tank 1 is provided with a steam pipe 12, which is coiled on the outer wall of the demagnetization tank 1. The upper part of the demagnetization tank 1 is provided with a steam inlet 13 connected with the steam pipe 12, and the bottom of the demagnetization tank 1 is provided with a drain port 14 for discharging steam condensed water.
[0031] The working process of the fluid demagnetization device of this embodiment is as follows:
[0032] After the magnetic rod 10 is installed in the sleeve 9, the fluid to be demagnetized is introduced into the cavity 2 from the feed port 3. When the fluid submerges the blade group 6d at the bottom layer, the stirring motor 6a drives the blade group 6d to start stirring the fluid in the cavity 2. When the sensor 4 detects that the liquid level of the fluid in the cavity 2 reaches the set liquid level, the introduction of the fluid is stopped. According to the needs of the process production, if the fluid in the cavity 2 needs to be heated, steam is introduced from the steam pipe 12 to heat the cavity 2 and the fluid in the cavity 2.
[0033] The fluid in the cavity 2 forms a vortex in the cavity 2 under the action of the stirring assembly 6, so that the magnetic foreign matter carried by the fluid is quickly dispersed. Under the combined action of centrifugal force and the friction between the magnetic foreign matter and the fluid, the magnetic foreign matter carried in the fluid will quickly settle to the vicinity of the bottom inner wall of the cavity 2 and enter the magnetic field area of the magnetic bar 10. Under the magnetic force of the magnetic bar 10, the magnetic foreign matter will be adsorbed to the surface of the sleeve 9.
[0034] When the magnetic foreign matter on the surface of the sleeve 9 accumulates to a certain amount, the fluid is discharged from the cavity 2 through the discharge port 7. Remove the docking flange 11, so that the magnetic bar 10 is separated from the sleeve 9 through the opening 9a of the sleeve 9, so that the part of the sleeve 9 located in the cavity 2 loses its magnetic force, and the magnetic foreign matter then falls to the bottom of the cavity 2 under the action of gravity, and slides to the vicinity of the slag discharge port 8. External water is introduced through the feed port 3 to flush the cavity 2, and the water flow can carry the magnetic foreign matter and discharge it from the slag discharge port 8 at the bottom of the cavity 2, thereby completing the process of demagnetizing the fluid. After the slag discharge is completed, close the slag discharge port 8, reinsert the magnetic bar 10, and start the next cycle of demagnetization process.
[0035] In summary, the embodiment of the present application provides a fluid demagnetization device, which arranges a sleeve 9 in the cavity 2, and the end of the sleeve 9 extending to the outside of the cavity 2 is provided with an opening 9a, and the magnetic rod 10 can be removed from the sleeve 9 through the opening 9a, which is convenient for the operator to remove the magnet and complete the operation of cleaning the magnetic foreign matter in the cavity 2, and it is convenient for the operator to replace the magnet daily and maintain the demagnetization device. At the same time, the fluid demagnetization device forms a vortex through the stirring component 6 arranged in the cavity 2, and the magnetic foreign matter carried by the fluid flows to the position of the sleeve 9 under the action of stirring, thereby improving the demagnetization efficiency of the demagnetization device.
[0036] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present application. These improvements and substitutions should also be regarded as the scope of protection of the present application.
Claims
1. A fluid demagnetization device, characterized in that: The invention comprises a cavity (2), wherein the cavity (2) is provided with a feed port (3) for fluid to enter, the bottom of the cavity (2) is provided with a discharge port (7) for fluid to be discharged, and a slag discharge port (8) for discharging magnetic foreign matter, and a stirring assembly (6) for stirring the fluid is provided in the cavity (2); a sleeve (9) is provided in the cavity (2), one end of the sleeve (9) extends outside the cavity (2), and an opening (9a) is provided at the end of the sleeve (9) extending outside the cavity (2), and a magnet is provided in the sleeve (9) and is disassembled from the sleeve (9) through the opening (9a).
2. A fluid demagnetization device according to claim 1, characterized in that: The number of the sleeves (9) is plural, and the plurality of sleeves (9) are arranged along the circumference of the cavity (2).
3. A fluid demagnetization device according to claim 1, characterized in that: The sleeve (9) is arranged in the cavity (2) along the vertical direction.
4. A fluid demagnetization device according to claim 1, characterized in that: The stirring assembly (6) comprises a stirring shaft (6c), and a plurality of blade groups (6d) for stirring the fluid are arranged on the stirring shaft (6c).
5. A fluid demagnetization device according to claim 4, characterized in that: The plurality of blade groups (6d) are distributed at intervals along the axial direction of the stirring shaft (6c).
6. A fluid demagnetization device according to claim 1, characterized in that: The bottom of the cavity (2) shows a tendency to gradually converge from the inner wall of the cavity (2) toward the location of the discharge port (7) or the slag discharge port (8).
7. A fluid demagnetization device according to claim 1 or 6, characterized in that: The sleeve (9) is arranged at the bottom of the cavity (2) and extends into the cavity (2) through the junction between the bottom of the cavity (2) and the inner wall of the cavity (2).
8. A fluid demagnetization device according to claim 1, characterized in that: A steam pipe (12) is arranged outside the cavity (2), and a steam inlet (13) communicating with the steam pipe (12) is arranged on the cavity (2).
9. A fluid demagnetization device according to claim 8, characterized in that: The steam pipe (12) is coiled on the outer wall of the cavity (2).
10. A fluid demagnetization device according to claim 1, characterized in that: The cavity (2) is provided with a sensor (4) for monitoring the liquid level in the cavity (2).