Particle size grading device for lithium battery positive electrode material

Abstract

The utility model relates to the technical field of lithium battery positive electrode material production equipment, and discloses a lithium battery positive electrode material particle size grading device which comprises a grading main body, a grading collecting mechanism is arranged on the back face of the grading main body, and the grading collecting mechanism comprises an L-shaped plate, a first driving motor, a rotating rod and a grading plate. And the front surface of the L-shaped plate is fixedly connected with the back surface of the grading main body. According to the lithium battery positive electrode material particle size grading device, through the use of an L-shaped plate, a first driving motor, a rotating rod and a grading plate, the angle of the grading plate in the grading main body can be changed, so that the effect of more convenient and faster particle size grading of the lithium battery positive electrode material is achieved; according to the lithium battery anode material grading and collecting device, the two grading plates can be driven to rotate through one first driving motor, the effect of reducing energy consumption is achieved, then the problem of how to conduct grading and collecting on lithium battery anode materials is solved, and the effect that grading and collecting are more convenient and faster can be achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of lithium battery cathode material production equipment, specifically a lithium battery cathode material particle size classification device. Background Technology

[0002] The cathode material of a lithium battery is a core component of the battery, and its main function is to store and release energy. Common lithium battery cathode materials include lithium cobalt oxide (LCO), lithium manganese oxide (LMO), lithium iron phosphate (LFP), and ternary materials (lithium nickel cobalt manganese oxide NCM and lithium nickel cobalt aluminum oxide NCA). In the preparation and application of lithium battery cathode materials, particle size is a very important parameter. The size and distribution of particle size directly affect the performance of the battery, including energy density, cycle life, and charging rate. Therefore, it is very important to classify and control the particle size of the cathode material.

[0003] According to the lithium battery cathode material particle size classification device with application number CN202020053758.2, this solution solves the problem of how to quickly separate and filter lithium battery materials of different particle sizes, making it convenient for people to use.

[0004] However, the following problems still exist in actual use:

[0005] (1) When in use, it is only operated through the filter bucket, which cannot be used for more convenient grading. Furthermore, the problem of collecting the grading devices in layers after grading increases the complexity of operation in reality, which is not conducive to the promotion and use of the grading device.

[0006] (2) The feeding is done through the feeding hopper, which cannot feed the material evenly. This can easily cause blockage during feeding, which will reduce the effect of grading and screening and reduce the applicability of the grading device in actual use.

[0007] Therefore, this utility model introduces a particle size classification device for lithium battery cathode materials. Utility Model Content

[0008] To address the shortcomings of existing technologies, this invention provides a lithium battery cathode material particle size classification device, which has the advantages of being able to classify and collect lithium battery cathode material particles by size and avoiding blockage during feeding and classification, thus solving the problems mentioned in the background technology.

[0009] This utility model provides the following technical solution: a lithium battery cathode material particle size classification device, including a classification body, a classification collection mechanism provided on the back of the classification body, the classification collection mechanism including an L-shaped plate, a first drive motor, a rotating rod and a classification plate, the front of the L-shaped plate being fixedly connected to the back of the classification body, the front of the first drive motor being fixedly connected to the back of the L-shaped plate, one end of the rotating rod being fixedly connected to the output shaft of the first drive motor, and the interior of the classification plate being fixedly connected to the outer surface of the rotating rod.

[0010] Preferably, the upper surface of the grading body is provided with a feeding mechanism, which includes a feeding pipe, a second drive motor, a connecting rod and a separating block. The outer surface of the feeding pipe is fixedly connected to the interior of the grading body, the front of the second drive motor is fixedly connected to the back of the feeding pipe, one end of the connecting rod is fixedly connected to the output shaft of the second drive motor, and the interior of the separating block is fixedly connected to the outer surface of the connecting rod.

[0011] Preferably, the outer surface of the rotating rod is rotatably connected to the interior of the grading body, and the outer surface of the grading plate is in contact with the inner wall of the grading body.

[0012] Preferably, the outer surface of the rotating rod is fitted with a connecting belt, and the inside of the connecting belt is fitted with the outer surface of another set of rotating rods.

[0013] Preferably, the grading body has a discharge trough inside, and a collection box is fixedly installed on the right side of the grading body.

[0014] Preferably, a bracket is fixedly installed at the bottom of the grading body, and an observation window is provided on the front of the grading body.

[0015] Preferably, the grading body has a pull-out box that is slidably connected inside, and a handle is fixedly installed on the front of the pull-out box.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This lithium battery cathode material particle size classification device, through the use of an L-shaped plate, a first drive motor, a rotating rod, and a classification plate, allows for changes in the angle of the classification plate within the classification body, achieving a more convenient effect in classifying the particle size of lithium battery cathode materials. The use of a connecting belt allows the rotation of two sets of classification plates via a first drive motor, reducing energy consumption. The use of a discharge trough and a collection box allows for the centralized collection of the classified lithium battery cathode materials, achieving convenient collection. This solves the problem of how to classify and collect lithium battery cathode materials, making classification and collection more convenient and reducing the complexity of the process, thus facilitating the widespread application of this classification device in practice.

[0018] 2. This lithium battery cathode material particle size classification device, through the use of a feed pipe, allows the lithium battery cathode material particles to be placed inside the classification body for classification, achieving a convenient classification effect. The use of a second drive motor, connecting rod, and separating block ensures that the lithium battery cathode material particles are evenly distributed inside the classification body, thus solving the problem of more uniform feeding and preventing clogging. This improves the classification and screening effect and enhances the practicality of the classification device in actual use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This utility model Figure 1 Internal structure diagram;

[0021] Figure 3 This utility model Figure 1 A schematic diagram of the hierarchical collection mechanism;

[0022] Figure 4 This utility model Figure 1 A schematic diagram of the feeding mechanism.

[0023] In the diagram: 1. Grading body; 2. Support frame; 3. Pull-out box; 4. Handle; 5. Observation window; 6. L-shaped plate; 7. First drive motor; 8. Rotating rod; 9. Grading plate; 10. Connecting belt; 11. Discharge chute; 12. Collection box; 13. Feed pipe; 14. Second drive motor; 15. Connecting rod; 16. Dividing block; 17. Grading and collection mechanism; 18. Feeding mechanism. Detailed Implementation

[0024] 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.

[0025] Please see Figure 3A lithium battery cathode material particle size classification device includes a classification body 1. A classification collection mechanism 17 is disposed on the back of the classification body 1. The classification collection mechanism 17 includes an L-shaped plate 6, a first drive motor 7, a rotating rod 8, and a classification plate 9. The front of the L-shaped plate 6 is fixedly connected to the back of the classification body 1. The front of the first drive motor 7 is fixedly connected to the back of the L-shaped plate 6. One end of the rotating rod 8 is fixedly connected to the output shaft of the first drive motor 7. The interior of the classification plate 9 is fixedly connected to the outer surface of the rotating rod 8, and the outer surface of the rotating rod 8 is rotatably connected to the interior of the classification body 1. The outer surface of the grading plate 9 is attached to the inner wall of the grading body 1. The outer surface of the rotating rod 8 is attached to the connecting belt 10, and the inside of the connecting belt 10 is attached to the outer surface of another set of rotating rods 8. The grading body 1 has a discharge chute 11 inside. A collection box 12 is fixedly installed on the right side of the grading body 1. By using the L-shaped plate 6, the first drive motor 7, the rotating rod 8 and the grading plate 9, as well as the connecting belt 10, the discharge chute 11 and the collection box 12, a more convenient effect can be achieved in grading and collection, and the complexity of grading and collection can be reduced, which is conducive to the promotion and use of this grading device in reality.

[0026] Please see Figure 4 The upper surface of the grading body 1 is provided with a feeding mechanism 18, which includes a feeding pipe 13, a second drive motor 14, a connecting rod 15, and a material dividing block 16. The outer surface of the feeding pipe 13 is fixedly connected to the interior of the grading body 1, the front of the second drive motor 14 is fixedly connected to the back of the feeding pipe 13, one end of the connecting rod 15 is fixedly connected to the output shaft of the second drive motor 14, and the interior of the material dividing block 16 is fixedly connected to the outer surface of the connecting rod 15. By using the feeding pipe 13, the second drive motor 14, the connecting rod 15, and the material dividing block 16, the effect of uniform feeding and avoiding clogging can be achieved, which improves the effect during grading and screening and enhances the practicality of the grading device in actual use.

[0027] Please see Figure 1 and Figure 2 The bottom of the grading body 1 is fixedly equipped with a bracket 2, which makes the device more stable during use. The front of the grading body 1 is provided with an observation window 5, which allows the internal condition of the grading body 1 to be observed. The inside of the grading body 1 is slidably connected to a pull-out box 3, and the front of the pull-out box 3 is fixedly equipped with a handle 4. The pull-out box 3 and the handle 4 are used to collect different graded lithium battery cathode materials.

[0028] Working principle: When using the lithium battery positive electrode material, the second drive motor 14 can be started to drive the output shaft of the second drive motor 14 to rotate the connecting rod 15 fixedly connected to it. When the connecting rod 15 rotates, the material distribution block 16 fixedly installed on the outer surface of the connecting rod 15 can rotate synchronously. Then, the lithium battery positive electrode material can be put in. The material distribution block 16 can be used to evenly feed the lithium battery positive electrode material into the interior of the grading body 1 through the grooves opened inside.

[0029] When collecting and classifying lithium battery cathode materials that have entered the classification body 1, the first drive motor 7, which is fixedly mounted on the back of the L-shaped plate 6, can drive the rotation of the rotating rod 8, which is fixedly connected to the output shaft of the first drive motor 7. The position of the classification plate 9, which is fixedly mounted on the outer surface of the rotating rod 8, can be changed at the angle of the inner wall of the classification body 1. The other set of classification plates 9 can be rotated by the power of the connecting belt 10. Thus, when the lithium battery cathode materials enter the classification body 1, they can be more easily classified by the classification plates 9. The classified lithium battery cathode materials can be collected in the collection box 12 by the discharge trough 11 opened inside the classification body 1, which facilitates subsequent centralized processing operations.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A particle size classification device for lithium battery cathode materials, characterized in that: The system includes a grading body (1), and a grading collection mechanism (17) is provided on the back of the grading body (1). The grading collection mechanism (17) includes an L-shaped plate (6), a first drive motor (7), a rotating rod (8), and a grading plate (9). The front of the L-shaped plate (6) is fixedly connected to the back of the grading body (1), the front of the first drive motor (7) is fixedly connected to the back of the L-shaped plate (6), one end of the rotating rod (8) is fixedly connected to the output shaft of the first drive motor (7), and the interior of the grading plate (9) is fixedly connected to the outer surface of the rotating rod (8).

2. The lithium battery cathode material particle size classification device according to claim 1, characterized in that: The upper surface of the grading body (1) is provided with a feeding mechanism (18). The feeding mechanism (18) includes a feeding pipe (13), a second drive motor (14), a connecting rod (15), and a separating block (16). The outer surface of the feeding pipe (13) is fixedly connected to the interior of the grading body (1). The front of the second drive motor (14) is fixedly connected to the back of the feeding pipe (13). One end of the connecting rod (15) is fixedly connected to the output shaft of the second drive motor (14). The interior of the separating block (16) is fixedly connected to the outer surface of the connecting rod (15).

3. The lithium battery cathode material particle size classification device according to claim 1, characterized in that: The outer surface of the rotating rod (8) is rotatably connected to the interior of the grading body (1), and the outer surface of the grading plate (9) is attached to the inner wall of the grading body (1).

4. The lithium battery cathode material particle size classification device according to claim 1, characterized in that: The outer surface of the rotating rod (8) is fitted with a connecting belt (10), and the inside of the connecting belt (10) is fitted with the outer surface of another set of rotating rods (8).

5. The lithium battery cathode material particle size classification device according to claim 1, characterized in that: The grading body (1) has a discharge trough (11) inside, and a collection box (12) is fixedly installed on the right side of the grading body (1).

6. The lithium battery cathode material particle size classification device according to claim 1, characterized in that: A bracket (2) is fixedly installed at the bottom of the grading body (1), and an observation window (5) is provided on the front of the grading body (1).

7. The lithium battery cathode material particle size classification device according to claim 1, characterized in that: The graded main body (1) has a sliding pull box (3) inside, and a handle (4) is fixedly installed on the front of the pull box (3).

Images