Lithium battery positive electrode material leaching tank

Abstract

The utility model belongs to the technical field of lithium battery positive electrode materials, and particularly relates to a lithium battery positive electrode material leaching tank which comprises a second tank body, a first tank body is fixedly connected to the top of the second tank body, a top cover is arranged at the top of the first tank body, and a limiting assembly is arranged on the inner side of the first tank body. A first clamping ring is fixedly connected to the middle of the inner side of the second tank body, a second clamping ring is arranged on the lower side of the first clamping ring, the second clamping ring is fixedly connected with the second tank body, a first filter screen is arranged at the top of the first clamping ring, and a second filter screen is arranged at the top of the second clamping ring. And the limiting connecting plate is lifted upwards to drive the structure directly or indirectly connected to the connecting rod to move out of the second tank body, so that the equipment is convenient to clean after being used, the equipment is modularized, and subsequent maintenance is further facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery cathode materials, and specifically relates to a leaching tank for lithium battery cathode materials. Background Technique

[0002] The lithium battery cathode material, which is a part of the constituent materials of the lithium ion battery, directly affects the performance of the lithium ion battery and accounts for a relatively large proportion. During the production process of the lithium battery cathode material, a leaching tank for the lithium battery cathode material is required.

[0003] After retrieval, the existing Chinese patent publication number CN214680518U provides a leaching tank for lithium battery cathode materials. The patent includes a tank body, a coarse filter screen and a fine filter screen. A rotating motor is installed on the top surface of the tank body, and a rotating shaft located in the vertical direction and sequentially passing through the coarse filter screen and the fine filter screen is installed on the motor shaft of the rotating motor. The rotating shaft is connected to the coarse filter screen and the fine filter screen through bearings. Through leaching by the coarse filter screen and the fine filter screen, two lithium battery cathode materials with different mesh sizes can be obtained, so that the application range of the lithium battery cathode material can be wider.

[0004] Although the above patent can obtain two lithium battery cathode materials with different mesh sizes, the above leaching tank for lithium battery cathode materials still has the following problems: The internal stirring structure of the leaching tank is complex, and the position is fixed and cannot be taken out flexibly, making the cleaning operation after use cumbersome and not conducive to later maintenance.

[0005] In view of the above problems, a leaching tank for lithium battery cathode materials is proposed. Content of the Utility Model

[0006] In order to make up for the deficiencies of the prior art and solve the problems in the background technique, a leaching tank for lithium battery cathode materials is proposed.

[0007] The technical solution adopted by the present utility model to solve its technical problems is as follows: A leaching tank for the positive electrode material of a lithium battery according to the present utility model includes a second tank body. A first tank body is fixedly connected to the top of the second tank body. A top cover is arranged at the top of the first tank body. A limiting component is arranged inside the first tank body. A first clamping ring is fixedly connected to the middle part inside the second tank body. A second clamping ring is arranged below the first clamping ring, and the second clamping ring is fixedly connected to the second tank body. A first filter screen is arranged at the top of the first clamping ring. A second filter screen is arranged at the top of the second clamping ring. Blocks are fixedly connected to the bottoms of the first filter screen and the second filter screen at equal intervals. Slots are arranged at equal intervals at the tops of the first clamping ring and the second clamping ring, and the slots correspond to the blocks. A second bearing is fixedly connected to the middle part of the top of the first filter screen. A third bearing is fixedly connected to the middle part of the top of the second filter screen. A connecting rod is fixedly connected between the inner sides of the second bearing and the third bearing. A first stirring net is fixedly connected to the upper part of the outer ring of the connecting rod at equal intervals. A second stirring net is fixedly connected to the lower part of the outer ring of the connecting rod at equal intervals. An impeller is arranged below the second stirring net, and the impeller is fixedly connected to the connecting rod.

[0008] Preferably, the limiting component includes limiting guide rails. A limiting connecting plate is slidably connected between the inner sides of the two limiting guide rails. A first bearing is fixedly connected to the inner side of the limiting connecting plate, and the first bearing is fixedly connected to the connecting rod.

[0009] Preferably, a driving motor is fixedly connected to the top of the first tank body. An internal spline is fixedly connected to the output end of the driving motor. Limiting columns are fixedly connected to both sides of the bottom of the top cover, and the limiting columns are slidably connected to the limiting guide rails. The limiting columns penetrate through the limiting connecting plate.

[0010] Preferably, an external spline is fixedly connected to the top of the connecting rod, and the external spline corresponds to the internal spline.

[0011] Preferably, a plurality of snap rings are fixedly connected to the outside of the first tank body at equal intervals. A plurality of hanging tongues are fixedly connected to the edge of the top of the top cover at equal intervals, and the snap rings and the hanging tongues cooperate with each other.

[0012] Preferably, a first valve is arranged above the first clamping ring, and the first valve is communicated with the second tank body. A second valve is arranged above the second clamping ring, and the second valve is communicated with the second tank body. A third valve is communicated with the lower part of the second tank body near the second valve.

[0013] The beneficial effects of the present utility model:

[0014] The present utility model provides a leaching tank for the positive electrode material of a lithium battery. By lifting the limiting connecting plate upward, the structures directly or indirectly connected to the connecting rod are driven to move out of the second tank body, which is convenient for cleaning the equipment after use, making the equipment modular and further facilitating subsequent maintenance.

[0015] The utility model provides a leaching tank for the positive electrode material of a lithium battery. The relative movement of the first filter screen and the second filter screen is restricted by the cooperation of the clamping grooves on the first clamping ring and the second clamping ring with the clamping blocks, so that the first filter screen and the second filter screen will not shift during the operation of the equipment. Further, the relative movement of the overall stirring structure is restricted by the mutual cooperation of the limiting connecting plate and the limiting guide rail, making it more stable during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the utility model and constitute a part of this application. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation to the utility model. In the drawings:

[0017] Figure 1 is a three-dimensional view of the utility model;

[0018] Figure 2 is a schematic diagram of the internal spline in the utility model;

[0019] Figure 3 is a schematic diagram of the limiting connecting plate in the utility model;

[0020] Figure 4 is a schematic diagram of the impeller in the utility model;

[0021] Figure 5 is a schematic diagram of the connecting rod in the utility model;

[0022] Figure 6 is a schematic diagram of the clamping block in the utility model;

[0023] Figure 7 is a schematic diagram of the clamping groove in the utility model;

[0024] Legend Explanation:

[0025] 1. Driving motor; 2. Hanging tongue; 3. First tank body; 4. Second tank body; 5. Top cover; 6. Buckle ring; 7. First valve; 8. Second valve; 9. Third valve; 10. Limiting column; 11. Internal spline; 12. Limiting guide rail; 13. External spline; 14. First stirring net; 15. Limiting connecting plate; 16. Connecting rod; 17. Second stirring net; 18. Second filter screen; 19. First bearing; 20. First filter screen; 21. Impeller; 22. Second bearing; 23. Third bearing; 24. Clamping block; 25. First clamping ring; 26. Clamping groove; 27. Second clamping ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] The following gives specific embodiments.

[0028] Please refer to Figure 1 - Figure 7 , the present utility model provides a leaching tank for the positive electrode material of a lithium battery, including a second tank body 4, a first tank body 3 is fixedly connected to the top of the second tank body 4, a top cover 5 is arranged on the top of the first tank body 3, a limiting component is arranged inside the first tank body 3, a first clamping ring 25 is fixedly connected to the middle part inside the second tank body 4, a second clamping ring 27 is arranged below the first clamping ring 25, and the second clamping ring 27 is fixedly connected to the second tank body 4. A first filter screen 20 is arranged on the top of the first clamping ring 25, a second filter screen 18 is arranged on the top of the second clamping ring 27. Both the bottom of the first filter screen 20 and the bottom of the second filter screen 18 are fixedly connected with equally spaced clamping blocks 24. Equally spaced clamping grooves 26 are formed on the tops of the first clamping ring 25 and the second clamping ring 27, and the clamping grooves 26 correspond to the clamping blocks 24. A second bearing 22 is fixedly connected to the middle part of the top of the first filter screen 20, a third bearing 23 is fixedly connected to the middle part of the top of the second filter screen 18. A connecting rod 16 is fixedly connected between the inner sides of the second bearing 22 and the third bearing 23. Equally spaced first stirring meshes 14 are fixedly connected to the upper part of the outer circle of the connecting rod 16, and equally spaced second stirring meshes 17 are fixedly connected to the lower part of the outer circle of the connecting rod 16. An impeller 21 is arranged below the second stirring mesh 17, and the impeller 21 is fixedly connected to the connecting rod 16.

[0029] During operation, when it is necessary to leach the cathode material of lithium batteries through this leaching tank, first, the raw materials are added into the interior of the second tank body 4 through the opening of the first tank body 3. Then, by covering the top cover 5, the limiting posts 10 are inserted into the limiting guide rails 12, and the internal splines 11 are inserted into the external splines 13. Further, the snap rings 6 are used in cooperation with the lifting lugs 2 to limit the lifting lugs 2 and the top cover 5. Then, by starting the driving motor 1, the internal splines 11 are driven to rotate. Through the cooperation of the internal splines 11 and the external splines 13, the connecting rod 16 is driven to rotate. Further, the first stirring screen 14 is driven to rotate by the connecting rod 16 to stir the raw materials. The stirred raw materials will be mixed together to form a slurry, and the first-stage cathode material of lithium batteries is formed on the upper side of the first filter screen 20. Continue to stir to make it pass through the first filter screen 20 and enter the upper side of the second filter screen 18, and the second-stage cathode material of lithium batteries is formed under the stirring of the second stirring screen 17 and the impeller 21. Further stirring makes a part of the slurry pass through the second filter screen 18 and enter the bottom of the second tank body 4 to form the third-stage cathode material of lithium batteries.

[0030] Furthermore, as Figure 1 - Figure 3 shown, the limiting assembly includes the limiting guide rails 12. A limiting connecting plate 15 is slidably connected between the inner sides of the two limiting guide rails 12. A first bearing 19 is fixedly connected to the inner side of the limiting connecting plate 15, and the first bearing 19 is fixedly connected to the connecting rod 16. A driving motor 1 is fixedly connected to the top of the first tank body 3. The output end of the driving motor 1 is fixedly connected with the internal splines 11. Limiting posts 10 are fixedly connected to both sides of the bottom of the top cover 5, and the limiting posts 10 are slidably connected with the limiting guide rails 12. The limiting posts 10 penetrate through the limiting connecting plate 15. An external spline 13 is fixedly connected to the top of the connecting rod 16, and the external spline 13 corresponds to the internal spline 11. Snap rings 6 are fixedly connected to the outside of the first tank body 3 at equal intervals. Lifting lugs 2 are fixedly connected to the top edge of the top cover 5 at equal intervals, and the snap rings 6 and the lifting lugs 2 cooperate with each other. A first valve 7 is arranged on the upper side of the first snap ring 25, and the first valve 7 is communicated with the second tank body 4. A second valve 8 is arranged on the upper side of the second snap ring 27, and the second valve 8 is communicated with the second tank body 4. A third valve 9 is communicated with the lower part of the second tank body 4 near the second valve 8.

[0031] During operation, when it is necessary to take out the corresponding lithium battery cathode material, only the valves in the corresponding part need to be opened. The valves refer to the first valve 7, the second valve 8, and the third valve 9. To collect the first-stage lithium battery cathode material, open the first valve 7; to collect the second-stage lithium battery cathode material, open the second valve 8; to collect the third-stage lithium battery cathode material, open the third valve 9. After stirring is completed, first release the restriction on the lifting tongue 2 by opening the buckle 6, then remove the top cover 5, and then lift the limit connecting plate 15 to further drive the movement of the structure directly or indirectly connected to the connecting rod 16, and take out all the stirring components from the second tank body 4 for subsequent cleaning. After cleaning is completed, hold the limit connecting plate 15 and place the structure inside the second tank body 4. Place the two ends of the limit connecting plate 15 in the two limit guide rails 12 respectively, and further align the clamping blocks 24 on the first filter screen 20 and the second filter screen 18 with the slots 26 on the first snap ring 25 and the second snap ring 27 to make them cooperate with and restrict each other.

[0032] Working principle: When it is necessary to leach the cathode material of lithium batteries through this leaching tank, first, the raw materials are added into the interior of the second tank body 4 through the opening of the first tank body 3. Then, by covering the top cover 5, the limit posts 10 are inserted into the limit guide rails 12, and the internal splines 11 are inserted into the external splines 13. Further, the snap ring 6 cooperates with the lifting lug 2 to limit the lifting lug 2 and the top cover 5. Then, by starting the driving motor 1, the internal splines 11 are driven to rotate. Through the cooperation of the internal splines 11 and the external splines 13, the connecting rod 16 is driven to rotate. Further, the first stirring screen 14 is driven to rotate by the connecting rod 16 to stir the raw materials. The stirred raw materials will be mixed together to form a slurry, and a first-stage cathode material of lithium batteries is formed on the upper side of the first filter screen 20. Continue to stir to make it pass through the first filter screen 20 and enter the upper side of the second filter screen 18, and a second-stage cathode material of lithium batteries is formed under the stirring of the second stirring screen 17 and the impeller 21. Further stirring makes a part of the slurry pass through the second filter screen 18 and enter the bottom of the second tank body 4 to form a third-stage cathode material of lithium batteries. When it is necessary to take out the corresponding cathode material of lithium batteries, only need to open the valves corresponding to the parts. The valves refer to the first valve 7, the second valve 8, and the third valve 9. Open the first valve 7 to collect the first-stage cathode material of lithium batteries, open the second valve 8 to collect the second-stage cathode material of lithium batteries, and open the third valve 9 to collect the third-stage cathode material of lithium batteries. After the stirring is completed, first, open the snap ring 6 to release its restriction on the lifting lug 2, then remove the top cover 5. Then, by lifting the limit connecting plate 15, further drive the structures directly or indirectly connected to the connecting rod 16 to move, and take out all the stirring components from the second tank body 4 to facilitate subsequent cleaning. After the cleaning is completed, lift the limit connecting plate 15 and place the structure inside the second tank body 4. Place the two ends of the limit connecting plate 15 in the two limit guide rails 12 respectively. Further, align the clamping blocks 24 on the first filter screen 20 and the second filter screen 18 with the card slots 26 on the first snap ring 25 and the second snap ring 27 to make them cooperate with and restrict each other.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A leaching tank for the cathode material of a lithium battery, characterized in that: It includes a second tank body (4), a first tank body (3) is fixedly connected to the top of the second tank body (4), a top cover (5) is arranged on the top of the first tank body (3), a limiting component is arranged inside the first tank body (3), a first clamping ring (25) is fixedly connected to the middle part inside the second tank body (4), a second clamping ring (27) is arranged below the first clamping ring (25), and the second clamping ring (27) is fixedly connected to the second tank body (4), a first filter screen (20) is arranged on the top of the first clamping ring (25), a second filter screen (18) is arranged on the top of the second clamping ring (27), blocks (24) are fixedly connected to the bottoms of the first filter screen (20) and the second filter screen (18) at equal intervals, slots (26) are arranged on the tops of the first clamping ring (25) and the second clamping ring (27) at equal intervals, and the slots (26) correspond to the blocks (24), a second bearing (22) is fixedly connected to the middle part of the top of the first filter screen (20), a third bearing (23) is fixedly connected to the middle part of the top of the second filter screen (18), a connecting rod (16) is fixedly connected between the inner sides of the second bearing (22) and the third bearing (23), a first stirring net (14) is fixedly connected to the upper part of the outer circle of the connecting rod (16) at equal intervals, a second stirring net (17) is fixedly connected to the lower part of the outer circle of the connecting rod (16) at equal intervals, an impeller (21) is arranged below the second stirring net (17), and the impeller (21) is fixedly connected to the connecting rod (16).

2. The leaching tank for the cathode material of a lithium battery according to claim 1, characterized in that: The limiting component includes limiting guide rails (12), a limiting connecting plate (15) is slidably connected between the inner sides of the two limiting guide rails (12), a first bearing (19) is fixedly connected to the inner side of the limiting connecting plate (15), and the first bearing (19) is fixedly connected to the connecting rod (16).

3. A leaching tank for a lithium battery cathode material according to claim 1, characterized in that: A driving motor (1) is fixedly connected to the top of the first tank body (3), an internal spline (11) is fixedly connected to the output end of the driving motor (1), limiting columns (10) are fixedly connected to both sides of the bottom of the top cover (5), and the limiting columns (10) are slidably connected to the limiting guide rails (12), and the limiting columns (10) penetrate through the limiting connecting plate (15).

4. A leaching tank for a lithium battery cathode material according to claim 1, characterized in that: An external spline (13) is fixedly connected to the top of the connecting rod (16), and the external spline (13) corresponds to the internal spline (11).

5. A leaching tank for a lithium battery cathode material according to claim 1, characterized in that: Clasp rings (6) are fixedly connected to the outside of the first tank body (3) at equal intervals, hanging tongues (2) are fixedly connected to the edge of the top of the top cover (5) at equal intervals, and the clasp rings (6) and the hanging tongues (2) are matched with each other.

6. The leaching tank for the cathode material of a lithium battery according to claim 1, wherein: A first valve (7) is arranged above the first clamping ring (25), and the first valve (7) is communicated with the second tank body (4), a second valve (8) is arranged above the second clamping ring (27), and the second valve (8) is communicated with the second tank body (4), and a third valve (9) is communicated with the lower part of one side of the second tank body (4) close to the second valve (8).

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