Lithium ion battery powder processing device
By setting up efficient grinding components and screening and grading components in the lithium-ion battery powder processing device, the problems of inconcentrated particle size distribution and low efficiency in the existing devices are solved, and qualified powders are produced efficiently and efficiently and highly produced, reducing production costs.
Patent Information
- Application Number
- CN202421308847.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-06-11
AI Technical Summary
In the existing lithium-ion battery powder processing equipment, the screening and grading system is inefficient, resulting in inconcentrated particle size distribution of powder, low efficiency, and increasing production costs.
A lithium-ion battery powder processing device is designed to achieve efficient grinding and grading of powder by setting efficient grinding components and screening and grading components outside the grinding main machine. The grinding assembly consists of a first grinding roller and a second grinding roller, and a power source for driving a reverse rotation is provided in the gap, so that powder with a particle size greater than the maximum qualified particle size can be polished at one time. The screening assembly includes a cyclone separation mechanism and filter material components, which can effectively screen out qualified powders and impurities.
By setting up efficient grinding and grading components outside the grinding main machine, the problems of inconcentrated particle size distribution and low efficiency are solved, and qualified powders are efficiently produced in high-yield areas and production costs are reduced.
Smart Images
Figure CN222816904U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of lithium ion battery raw materials, in particular to a lithium ion battery powder processing device. Background Art
[0002] The raw materials of lithium-ion batteries are made by grinding lithium carbonate ore raw materials. In actual production, large pieces of ore raw materials are usually initially crushed into small pieces in a crusher, and then these materials are transported to the main grinding machine cavity through an elevator belt conveyor. The materials are further crushed into smaller powder particles through components such as grinding rollers and grinding rings. The main grinding machine cavity is connected to a blower. The ground and crushed powder particles are blown by the airflow of the blower to the classifier above the main grinding machine for classification and screening. Small-volume and fast-speed powder particles enter the collector through the classifier, and large-volume and slow-speed powder particles fall onto the main grinding machine and are re-ground. Since the main grinding machine and the classifier are in a small and confined space, there is a problem of multiple crushing and grinding, which is not only inefficient, but also easily causes non-concentrated particle size distribution, resulting in low grinding efficiency, increased fine powder, reduced yield, and increased production costs. Utility Model Content
[0003] In order to solve the technical problems in the background technology that the screening and grading system is inefficient and needs to be ground and re-grinded multiple times, the utility model proposes a lithium-ion battery powder preparation device.
[0004] The specific technical solutions are as follows:
[0005] A lithium-ion battery powder processing device comprises a first shell, on which a feed port and a discharge port are arranged, the discharge port is connected to a screening component through a pipeline, the first shell has a first grinding roller, a second grinding roller and a first power source driving the first grinding roller and the second grinding roller to rotate in opposite directions, the first grinding roller and the second grinding roller are arranged in parallel, and a gap is left between them.
[0006] Preferably, the screening component specifically comprises: a first screening mechanism, a cyclone separation mechanism is arranged inside the first screening mechanism, an inlet connected to the discharge port is arranged on the first screening mechanism, and a heavy material outlet and a light material outlet are also arranged on the first screening mechanism.
[0007] Preferably, the screening component further comprises: a second screening mechanism, a filter material component is arranged inside the second screening mechanism, a light material inlet connected to the light material outlet is arranged on the second screening mechanism, and an impurity outlet and a light qualified powder outlet are also arranged on the second screening mechanism.
[0008] Preferably, the lithium-ion battery powder processing device also includes a second shell, a feed pipe for introducing the original powder into the second shell, a disk horizontally arranged in the second shell, a second power source, and a discharge pipe, the discharge pipe is connected to the feed port, the discharge end of the feed pipe is located above the disk, and the discharge end extends into the second shell, and a first annular gap is left between the outer edge of the disk and the inner wall of the second shell for the scattered original powder to fall by its own weight, and the second shell, the feed pipe and the disk are coaxially arranged, the second power source installed on the inner wall of the second shell drives the connected disk, and can drive the disk to rotate axially, and the discharge port of the discharge pipe is located directly above the gap.
[0009] Preferably, the top of the disk body has a plurality of radially arranged first guide grooves.
[0010] Preferably, the discharge end of the feed pipe extends downward to form a cover body which is in communication with the feed pipe and arranged coaxially, the diameter of the cover body is equal to the diameter of the disc body, and a second annular gap which is in communication with the first annular gap is left between the cover body and the disc body.
[0011] Preferably, a plurality of second guide grooves are vertically arranged at intervals on the inner wall of the shell, and the second guide grooves extend to the upper end of the discharge pipe of the shell.
[0012] Preferably, the discharge port of the discharge pipe has a cross section that is the same shape as the gap, and the discharge port of the discharge pipe is located directly above the gap.
[0013] Beneficial effects of the utility model:
[0014] The lithium-ion battery powder processing device arranges the screening and grading mechanism in the main grinding machine outside the main grinding machine, and arranges an efficient grinding assembly composed of a first grinding roller, a second grinding roller and other components in front of the screening and grading assembly. The grinding assembly can grind the powder with a particle size larger than the maximum qualified particle size in the original powder coming out of the main grinding machine into qualified powder at one time, avoiding the problem of repeated grinding of powder when the screening and grading mechanism is arranged in the main grinding machine. The first screening mechanism of the screening and grading assembly can screen out qualified powder with a larger particle size from the powder coming out of the grinding assembly, and send the remaining lighter powder to the subsequent second screening mechanism to continue screening and processing to obtain qualified light powder and impurities. After the above steps, the lithium-ion battery powder processing device can produce and process qualified powder efficiently and productively.
[0015] The lithium-ion battery powder processing device is provided with a powder dispersing component mainly composed of a rotating disc in front of the grinding component. The powder dispersing component can break up the original powder that sticks together and is output from the grinding main machine into dust and then send it to the gap between the first grinding roller and the second grinding roller of the grinding component for grinding. This powder dispersing component ensures the efficient and smooth grinding process. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of a lithium-ion battery powder processing device.
[0017] Figure 2 It is a schematic structural diagram of a powder dispersing assembly, a grinding assembly and a first screening mechanism of a lithium-ion battery powder processing device.
[0018] Figure 3 This is a schematic diagram of the structure of the powder dispersing component and the grinding component of the lithium-ion battery powder processing device.
[0019] Figure 4 In for Figure 3 An enlarged schematic diagram of part A. DETAILED DESCRIPTION
[0020] The specific implementation of the utility model is now described in conjunction with the accompanying drawings:
[0021] like Figures 1 to 4 As shown, the main function of the lithium-ion battery powder processing device is to grind the original powder coming out of the grinding main machine again and separate the powder with a particle size within the qualified range. The lithium-ion battery powder processing device includes: an abrasive component 1, the abrasive component 1 includes a first shell 11, the first shell 11 is provided with a feed port 111 for introducing the original raw material coming out of the grinding main machine into the shell 11, and a discharge port 112 for outputting the ground powder. The discharge port 112 is connected to the screening component 2 through a pipeline. The first shell 11 has a first grinding roller 12, a second grinding roller 13 and a first power source that drives the first grinding roller 12 and the second grinding roller 13 to rotate in opposite directions. The first grinding roller 12 is parallel to the second grinding roller 13. The two grinding wheels 10 and 11 are arranged in rows with a gap 14 in between, the spacing of the gap 14 is less than or equal to the maximum qualified particle size, so that the powder with a particle size larger than the maximum qualified particle size in the original powder can be ground into powder with a particle size less than or equal to the maximum qualified particle size, and the unqualified powder and qualified powder with too small a particle size fall through the gap 14, the screening component 2 is used to screen out qualified powder from the powder output from the discharge port 112 of the abrasive component 1, and the lithium-ion battery powder processing device realizes the re-grinding and efficient classification of the original powder outside the grinding main machine, avoids the problem of repeated grinding during classification in the abrasive main machine, improves the grinding efficiency, reduces the production energy consumption, reduces the grinding of fine powder, and thus increases the yield.
[0022] like Figure 1 , Figure 2As shown, the screening component 2 specifically includes: a first screening mechanism 21, a cyclone separation mechanism 21 is arranged inside the first screening mechanism 21, an inlet 212 connected to the discharge port 112 is arranged on the first screening mechanism 21, and a heavy material outlet 213 and a light material outlet 214 are also arranged on the first screening mechanism 21. In a specific application, the powder output from the discharge port 112 of the abrasive component 1 can be input into the first screening mechanism 21 through the inlet 212 by a lifting mechanism such as a bucket elevator 4, and then the powder is separated into qualified powder with larger particle size and the rest of the lighter powder by the cyclone separation mechanism 211, and the qualified powder with larger particle size is output from the heavy material outlet 213, and the rest of the lighter powder is output from the light material outlet 214 to the second screening mechanism 22 behind.
[0023] like Figure 1 As shown, the screening component 2 also includes: a second screening mechanism 22, a filter material component 221 is arranged in the second screening mechanism 22, and a light material inlet 222 connected to the light material outlet 214 is arranged on the second screening mechanism 22. The powder coming out of the light material outlet 214 of the first screening mechanism 21 enters the second screening mechanism 22 through the light material inlet 222, and is further screened into light qualified powder and impurities by the filter material component 221. The screened materials are discharged from the corresponding light qualified powder outlet 224 and the impurity outlet 223 respectively. In specific applications, a negative pressure environment can be formed in the pipeline by setting a mechanism such as an induced draft fan 5 to drive the flow of powder.
[0024] like Figures 1 to 4 As shown, the lithium-ion battery powder processing device also includes a powder dispersing component 3, which specifically includes a second shell 31, a feed pipe 32 for introducing the original powder into the second shell 31, a disk 33 horizontally arranged in the second shell 31, a second power source 34, and a discharge pipe 35, wherein the discharge pipe 35 is connected to the feed port 111, and the discharge end 321 of the feed pipe 32 is located above the disk 33, and the discharge end 321 extends into the second shell 31, and a first annular gap 36 is left between the outer edge of the disk 33 and the inner wall of the second shell 31 for the scattered original powder to fall by its own weight, and the second shell 31, the feed pipe 32, and the disk 33 are connected to each other. Coaxially arranged, a second power source 34 installed on the inner wall of the second shell 31 drives the connecting disc 33 and can drive the disc 33 to rotate axially. The discharge port of the discharge pipe 35 is located directly above the gap 14. In specific applications, the original powder falls onto the rotating disc 33 through the feed pipe 32. The original powder dispersed by centrifugal force slides smoothly into the discharge port 35 through the first annular gap 36 and then continues to fall into the gap 14 between the first grinding roller 12 and the second grinding roller 13. Since the powder has been dispersed, the first grinding roller 12 and the second grinding roller 13 will only grind unqualified powder with too large particle size, thereby achieving more efficient grinding.
[0025] like Figures 2 to 4As shown, the top of the disc 33 has a plurality of radially arranged first guide grooves 331. After the original powder falls onto the disc 33, it will first be divided into a plurality of radially distributed powders by the radially arranged first guide grooves 331, thereby dispersing the original powder more quickly and effectively.
[0026] like Figures 2 to 4 As shown, the discharge end 321 of the feed pipe 32 extends downward to form a cover body 32111 which is connected to the feed pipe 32 and arranged coaxially. The diameter of the cover body 32111 is equal to the diameter of the disk body 33. A second annular gap 37 which is connected to the first annular gap 36 is left between the cover body 32111 and the disk body 33. The cover body 32111 limits the upward and outward movement of the original powder, ensuring that more original powder falls onto the disk body 33 and is rotated and dispersed.
[0027] like Figure 3 , Figure 4 As shown, a plurality of second guide grooves 311 are vertically arranged at intervals on the inner wall of the shell 31, and the second guide grooves 311 extend to the upper end of the discharge pipe 35 of the shell 31. In addition to further dispersing the original powder on the inner wall of the feed pipe 31, the second guide grooves 311 can also prevent the scattered powder on the disc 33 from sticking again.
[0028] like Figure 3 As shown, the discharge port 351 of the discharge pipe 35 of the dispersion component 3 has a cross-section that is the same shape as the gap 14, and the discharge port 351 of the discharge pipe 35 is located directly above the gap 14. By making the discharge port 351 of the discharge pipe 35 into a rectangle that is the same length and width as the gap 14 between the first grinding roller 12 and the second grinding roller 13, it can be ensured that the discharge port 351 of the discharge pipe 35 has sufficient outlet area for the original powder to fall into the gap 14.
[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A lithium-ion battery powder processing device, characterized in that: The invention comprises a first shell (11), the first shell (11) is provided with a feed port (111) and a discharge port (112), the discharge port (112) is connected to a screening assembly (2) through a pipeline, the first shell (11) has a first grinding roller (12), a second grinding roller (13) and a first power source for driving the first grinding roller (12) and the second grinding roller (13) to rotate in opposite directions, the first grinding roller (12) and the second grinding roller (13) are arranged in parallel, and a gap (14) is left between the two. The invention also comprises a second shell (31), a feed pipe (32) for introducing raw powder into the second shell (31), a disk (33) arranged horizontally in the second shell (31), a second power source (34), and a discharge pipe (35). The discharge pipe (35) is connected to the feed port (111). The discharge end (321) of the feed pipe (32) is located above the disk (33). The discharge end (321) extends into the second shell (31). A first annular gap (36) is left between the outer edge of the disk (33) and the inner wall of the second shell (31) for the scattered raw powder to fall by its own weight. The second shell (31), the feed pipe (32), and the disk (33) are coaxially arranged. The second power source (34) installed on the inner wall of the second shell (31) drives the disk (33) to rotate axially. The discharge port of the discharge pipe (35) is located directly above the gap (14).
2. The device according to claim 1, characterized in that The screening component (2) specifically comprises: a first screening mechanism (21), a cyclone separation mechanism (211) being arranged inside the first screening mechanism (21), an inlet (212) being arranged on the first screening mechanism (21) being connected to a discharge port (112), and a heavy material outlet (213) and a light material outlet (214) being also arranged on the first screening mechanism (21).
3. The device according to claim 2, characterized in that The screening component (2) further comprises: a second screening mechanism (22), the second screening mechanism (22) being provided with a filter material component (221), the second screening mechanism (22) being provided with a light material inlet (222) connected to the light material outlet (214), the second screening mechanism (22) being provided with an impurity outlet (223) and a light qualified powder outlet (224).
4. The device according to claim 1, characterized in that The top end of the disc body (33) is provided with a plurality of radially arranged first guide grooves (331).
5. The device according to claim 1, characterized in that A cover body (3211) is extended downward from the discharge end (321) of the feed pipe (32) and is coaxially arranged with the feed pipe (32). The diameter of the cover body (3211) is equal to the diameter of the disk body (33). A second annular gap (37) is provided between the cover body (3211) and the disk body (33) and is in communication with the first annular gap (36).
6. The device according to claim 1, characterized in that A plurality of second guide grooves (311) are vertically arranged at intervals on the inner wall of the shell (31), and the second guide grooves (311) extend to the upper end of the discharge pipe (35) of the shell (31).
7. The device according to claim 1, characterized in that The discharge port (351) of the discharge pipe (35) has a cross section that is the same shape as the gap (14), and the discharge port (351) of the discharge pipe (35) is located directly above the gap (14).