Lithium battery positive electrode material mixing and grinding device
By using a combined cleaning system of filter cartridge and backspray head in the lithium battery positive electrode material grinding device, the problem of efficiency reduction caused by dust accumulation is solved, uniform mixing and efficient grinding of powders are achieved, and the service life of the device is extended.
Patent Information
- Application Number
- CN202420865153.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-24
- Publication Date
- 2024-12-17
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the long-term use of the existing lithium battery positive electrode material grinding device, a large amount of dust will accumulate on one side of the filter screen, resulting in a decrease in working efficiency.
A mixed grinding device for the positive electrode material of lithium battery is designed, and the filter cartridge is used to perform powder sieving, and high-pressure gas is sprayed through a rotatable backspray head and the external cleaning brush is used to clean the filter cartridge to prevent large particles of powder from entering the side groove. , at the same time, the raw materials are impacted and mixed in multiple directions by rotating the material transfer plate and the grinding disc to ensure uniform grinding.
It effectively improves the cleaning efficiency of the grinding device, prevents the accumulation of large particles of powder, ensures uniform mixing and efficient grinding of powders, and extends the service life of the device.
Smart Images
Figure CN222173890U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lithium battery production, in particular to a lithium battery positive electrode material mixing and grinding device. Background Art
[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the negative electrode material and adopts a non-aqueous electrolyte solution. Lithium batteries are divided into two types: lithium metal batteries and lithium ion batteries. Lithium metal batteries usually use metallic lithium or its alloys as negative electrode materials, while lithium ion batteries use lithium alloy metal oxides as positive electrode materials and graphite as negative electrode materials. Its working principle mainly involves the movement of lithium ions between the positive and negative electrodes to realize the process of storing and releasing electrical energy. It has the advantages of high energy density, long life and environmental protection, and is widely used in many fields such as mobile phones, computers, and electric vehicles. The current mainstream positive electrode materials mainly include transition metal layered oxide materials, polyanion materials, Prussian blue materials, etc. During production, it is necessary to mix and grind the various materials required for the positive electrode material to facilitate subsequent shaping and sintering and other processing procedures.
[0003] After searching, the Chinese patent publication number CN220514334U discloses a high-efficiency grinding structure of a ring roller mill, including a ring roller mill shell, a feed pipe is fixedly installed near the top of the outer wall of the ring roller mill shell, a grinding ring is arranged inside the ring roller mill shell, and a reduction motor drives the rotating shaft and the distribution plate to rotate.
[0004] In view of the problem in the above technology that when the ground powder is sucked from above, the powder needs to be sieved once to ensure that larger particles of powder are not collected together, but a large amount of dust will accumulate on one side of the filter during long-term use, resulting in a decrease in the working efficiency of the device; therefore, a lithium battery positive electrode material mixing and grinding device is proposed. Utility Model Content
[0005] In view of this, the embodiments of the present invention hope to provide a lithium battery positive electrode material mixing and grinding device to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.
[0006] The technical solution of the embodiment of the utility model is achieved as follows: it includes a tank body, a filter cartridge and a support column are fixedly connected on the top of the tank body, side grooves are opened on both sides of the filter cartridge, a lifting bracket is slidably connected to one side of the support column and the side groove, one end of the lifting bracket is rotatably connected to a recoil nozzle, one end of the recoil nozzle is rotatably connected to a recoil assembly, one end of the lifting bracket is transmission-connected to the lifting assembly, and an external cleaning brush is fixedly connected to the lower side of the lifting bracket.
[0007] In some embodiments, the recoil assembly includes a recoil pump and a sealing plate, one end of the recoil pump is fixedly connected to the tank body, one end of the sealing plate is fixedly connected to the air outlet of the recoil pump, and the other end of the sealing plate is rotatably connected to the air inlet of the recoil nozzle.
[0008] In some embodiments, the lifting assembly includes an electric screw and a limit rod, one end of the electric screw and the limit rod is fixedly connected to the tank body, one end of the lifting bracket is slidably connected to the limit rod, and the other end of the lifting bracket is threadedly connected to the movable end of the limit rod.
[0009] In some embodiments, a guide groove is formed at one end of the support column, one end of the recoil nozzle is rotatably connected to a guide wheel, and one end of the guide wheel is movably connected to the guide groove.
[0010] In some embodiments, a drive motor and a reduction mechanism are fixedly connected under the tank body, the power output end of the drive motor is fixedly connected to the power input end of the reduction mechanism, a plurality of grinding discs are fixedly connected to the power output end of the reduction mechanism, a plurality of grinding wheels are rotatably connected to one end of the grinding disc, and a plurality of grinding grooves are opened inside the tank body.
[0011] In some embodiments, a blowing pump is fixedly connected below the tank body, a blowing nozzle is fixedly connected to one end of the blowing pump, the blowing nozzle is fixedly connected to the inside of the tank body, and a discharge pipe is fixedly connected above the tank body.
[0012] In some embodiments, a feed pipe is fixedly connected to the top of the tank body, one end of the upper support plate is rotatably connected to a material distribution rotating plate, and one end of the material distribution rotating plate is fixedly connected to the grinding disc.
[0013] In some embodiments, shielding cloths are fixedly connected to both ends of the lifting bracket, and one end of the shielding cloth is fixedly connected to the upper and lower sides of the side groove.
[0014] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:
[0015] 1. A lithium battery positive electrode material mixing and grinding device, which screens the ground powder through a filter cartridge, and uses a plurality of nozzles on the outside of a recoil nozzle that can rotate and move up and down to spray high-pressure gas and cooperate with an external cleaning brush to recoil the filter cartridge from the inside to the outside to clean it.
[0016] 2. A lithium battery positive electrode material mixing and grinding device, in which a material dividing rotating plate rotates simultaneously with the grinding disc, so that various raw materials entering from the feed pipe can collide with the fins on one side of the material dividing rotating plate and be scattered from multiple directions into the grinding disc below for grinding and mixing, so that the various raw materials can be mixed more evenly.
[0017] 3. A lithium battery positive electrode material mixing and grinding device, by installing shielding cloth on both sides of the lifting bracket, can shield the side groove when the lifting bracket moves up and down to prevent large particles of powder from entering the side groove.
[0018] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 This is the main structural diagram of the utility model;
[0021] Figure 2 This is an internal cross-sectional structural diagram of the utility model;
[0022] Figure 3 It is the upper structure diagram of the utility model;
[0023] Figure 4 This is a structural diagram of the filter cartridge of the utility model;
[0024] Figure 5 This is a partial structural diagram of the filter cartridge of the utility model.
[0025] Reference numerals:
[0026] 1. Tank body; 2. Feed pipe; 3. Discharge pipe; 4. Drive motor; 5. Speed reduction mechanism; 6. Blowing pump; 7. Grinding groove; 8. Grinding disc; 9. Grinding wheel; 10. Blowing nozzle; 11. Material distribution rotating plate; 12. Filter cartridge; 13. Upper support plate; 14. Support column; 15. Electric screw; 16. Recoil pump; 17. Lifting bracket; 18. Side groove; 19. External cleaning brush; 20. Recoil nozzle; 21. Shielding cloth; 22. Guide groove; 23. Limit rod; 24. Sealing plate; 25. Guide wheel. DETAILED DESCRIPTION
[0027] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.
[0028] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.
[0029] Embodiment 1:
[0030] like Figure 1-5 As shown, a lithium battery positive electrode material mixing and grinding device comprises a tank body 1, a filter cartridge 12 and a support column 14 are fixedly connected on the top of the tank body 1, side grooves 18 are opened on both sides of the filter cartridge 12, a lifting bracket 17 is slidably connected to one side of the support column 14 and the side groove 18, one end of the lifting bracket 17 is rotatably connected to a recoil nozzle 20, one end of the recoil nozzle 20 is rotatably connected to a recoil assembly, one end of the lifting bracket 17 is transmission-connected to the lifting assembly, and an external cleaning brush 19 is fixedly connected to the lower side of the lifting bracket 17;
[0031] When the device is working, the ground powder is transmitted from the top with the airflow for collection. In this process, the filter cartridge 12 can sieve the powder in the airflow and block the large particles of powder that do not meet the standards. After working for a period of time, a large amount of dust accumulates on the surface of the filter cartridge 12. At this time, the recoil assembly sprays high-pressure gas from multiple nozzles outside the recoil nozzle 20 to recoil the filter cartridge 12 from the inside to the outside for cleaning. At the same time, the lifting assembly drives the lifting bracket 17 to move downward for comprehensive cleaning.
[0032] The external cleaning brush 19 is located below the recoil nozzle 20, and can clean the outside of the filter cartridge 12 before recoil cleaning to improve the cleaning effect, and the cleaned dust can fall to the bottom of the device for re-grinding.
[0033] In this embodiment, the recoil assembly includes a recoil pump 16 and a sealing plate 24, one end of the recoil pump 16 is fixedly connected to the tank body 1, one end of the sealing plate 24 is fixedly connected to the air outlet end of the recoil pump 16, and the other end of the sealing plate 24 is rotatably connected to the air inlet end of the recoil nozzle 20;
[0034] The recoil pump 16 can spray air through the recoil nozzle 20, and the sealing plate 24 can maintain sealing while the recoil nozzle 20 rotates;
[0035] The lifting assembly includes an electric screw 15 and a limit rod 23. One end of the electric screw 15 and the limit rod 23 is fixedly connected to the tank body 1, one end of the lifting bracket 17 is slidably connected to the limit rod 23, and the other end of the lifting bracket 17 is threadedly connected to the movable end of the limit rod 23. The electric screw 15 moves up and down to drive the lifting bracket 17 to move up and down.
[0036] In this embodiment, a guide groove 22 is formed at one end of the support column 14, and a guide wheel 25 is rotatably connected to one end of the recoil nozzle 20, and one end of the guide wheel 25 is movably connected to the guide groove 22;
[0037] The guide groove 22 can allow the recoil nozzle 20 to rotate when moving up and down through the guide wheel 25, further improving the recoil cleaning effect.
[0038] In this embodiment, a driving motor 4 and a reduction mechanism 5 are fixedly connected to the lower part of the tank body 1, the power output end of the driving motor 4 is fixedly connected to the power input end of the reduction mechanism 5, a plurality of grinding discs 8 are fixedly connected to the power output end of the reduction mechanism 5, a plurality of grinding wheels 9 are rotatably connected to one end of the grinding disc 8, and a plurality of grinding grooves 7 are opened inside the tank body 1;
[0039] The driving motor 4 drives the multiple grinding discs 8 to rotate through the speed reduction mechanism 5, so that the grinding wheel 9 can roll in the grinding groove 7 to crush and grind the raw materials falling from above;
[0040] A blowing pump 6 is fixedly connected at the bottom of the tank body 1, and a blowing nozzle 10 is fixedly connected at one end of the blowing pump 6. The blowing nozzle 10 is fixedly connected to the inside of the tank body 1. A discharge pipe 3 is fixedly connected at the top of the tank body 1. The blowing pump 6 can blow up the ground fine powder from the bottom through the blowing nozzle 10, so as to facilitate recovery from the top.
[0041] In this embodiment: the driving motor 4 drives the plurality of grinding discs 8 to rotate through the speed reduction mechanism 5, so that the grinding wheel 9 can roll in the grinding groove 7 to crush and grind the raw materials falling from above;
[0042] The blowing pump 6 can blow up the ground fine powder from below through the blowing nozzle 10, so as to facilitate recovery from above;
[0043] When the device is working, the ground powder is transmitted from the top with the airflow for collection. In this process, the filter cartridge 12 can sieve the powder in the airflow and block the large particles of powder that do not meet the standards. After working for a period of time, a large amount of dust accumulates on the surface of the filter cartridge 12. At this time, the recoil assembly sprays high-pressure gas from multiple nozzles outside the recoil nozzle 20 to recoil the filter cartridge 12 from the inside to the outside for cleaning. At the same time, the lifting assembly drives the lifting bracket 17 to move downward for comprehensive cleaning.
[0044] The external cleaning brush 19 is located below the recoil nozzle 20, and can clean the outside of the filter cartridge 12 before recoil cleaning to improve the cleaning effect, and the cleaned dust can fall to the bottom of the device for re-grinding;
[0045] The recoil pump 16 can spray through the recoil nozzle 20, the sealing plate 24 can maintain sealing while the recoil nozzle 20 rotates, and the guide groove 22 can allow the recoil nozzle 20 to rotate while moving up and down through the guide wheel 25, further improving the recoil cleaning effect.
[0046] Embodiment 2:
[0047] A lithium battery positive electrode material mixing and grinding device, this embodiment makes the following improvements on the basis of embodiment 1, such as Figure 1-5 As shown,
[0048] In this embodiment, a feed pipe 2 is fixedly connected to the top of the tank body 1, and one end of the upper support plate 13 is rotatably connected to a material distribution rotating plate 11, and one end of the material distribution rotating plate 11 is fixedly connected to the grinding disc 8;
[0049] The material distribution rotating plate 11 rotates simultaneously with the grinding disc 8, so that various raw materials entering from the feed pipe 2 can hit the fins on one side of the material distribution rotating plate 11 and be scattered into the grinding disc 8 below from multiple directions for grinding and mixing, so that the various raw materials can be mixed more evenly.
[0050] In this embodiment, the two ends of the lifting bracket 17 are fixedly connected with a shielding cloth 21, and one end of the shielding cloth 21 is fixedly connected to the upper and lower sides of the side groove 18;
[0051] The shielding cloth 21 is preferably made of dustproof cloth, which can shield the side groove 18 when the lifting bracket 17 moves up and down to prevent large particles of powder from entering the side groove 18.
[0052] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A lithium battery positive electrode material mixing and grinding device, comprising a tank (1), characterized in that: A filter cartridge (12) and a support column (14) are fixedly connected to the top of the tank body (1), side grooves (18) are formed on both sides of the filter cartridge (12), a lifting bracket (17) is slidably connected to one side of the support column (14) and the side groove (18), one end of the lifting bracket (17) is rotatably connected to a recoil nozzle (20), one end of the recoil nozzle (20) is rotatably connected to a recoil assembly, one end of the lifting bracket (17) is transmission-connected to the lifting assembly, and an external cleaning brush (19) is fixedly connected to the lower side of the lifting bracket (17).
2. A lithium battery positive electrode material mixing and grinding device according to claim 1, characterized in that: The recoil assembly comprises a recoil pump (16) and a sealing plate (24), wherein one end of the recoil pump (16) is fixedly connected to the tank body (1), one end of the sealing plate (24) is fixedly connected to the air outlet end of the recoil pump (16), and the other end of the sealing plate (24) is rotatably connected to the air inlet end of the recoil nozzle (20).
3. A lithium battery positive electrode material mixing and grinding device according to claim 2, characterized in that: The lifting assembly comprises an electric screw (15) and a limiting rod (23); one end of the electric screw (15) and the limiting rod (23) are fixedly connected to the tank body (1); one end of the lifting bracket (17) is slidably connected to the limiting rod (23); and the other end of the lifting bracket (17) is threadedly connected to the movable end of the limiting rod (23).
4. A lithium battery positive electrode material mixing and grinding device according to claim 1, characterized in that: A guide groove (22) is formed at one end of the support column (14), and a guide wheel (25) is rotatably connected to one end of the recoil nozzle (20), and one end of the guide wheel (25) is movably connected to the guide groove (22).
5. A lithium battery positive electrode material mixing and grinding device according to claim 4, characterized in that: A driving motor (4) and a reduction mechanism (5) are fixedly connected below the tank body (1); a power output end of the driving motor (4) is fixedly connected to a power input end of the reduction mechanism (5); a plurality of grinding discs (8) are fixedly connected to the power output end of the reduction mechanism (5); one end of the grinding disc (8) is rotatably connected to a plurality of grinding wheels (9); and a plurality of grinding grooves (7) are provided inside the tank body (1).
6. A lithium battery positive electrode material mixing and grinding device according to claim 5, characterized in that: A blowing pump (6) is fixedly connected to the bottom of the tank body (1), a blowing nozzle (10) is fixedly connected to one end of the blowing pump (6), the blowing nozzle (10) is fixedly connected to the inside of the tank body (1), and a discharge pipe (3) is fixedly connected to the top of the tank body (1).
7. A lithium battery positive electrode material mixing and grinding device according to claim 6, characterized in that: A feed pipe (2) is fixedly connected to the top of the tank body (1), one end of the upper support plate (13) is rotatably connected to a material distribution rotating plate (11), and one end of the material distribution rotating plate (11) is fixedly connected to the grinding disc (8).
8. A lithium battery positive electrode material mixing and grinding device according to claim 1, characterized in that: The two ends of the lifting bracket (17) are fixedly connected with a shielding cloth (21), and one end of the shielding cloth (21) is fixedly connected to the upper and lower sides of the side groove (18).