A special breaking system for lithium batteries

Abstract

The utility model relates to a kind of special crushing system for lithium battery, the crushing system includes crusher;The crusher is four-axis crusher;The crushing system further includes breaker, the breaker is connected with crusher, located after crusher.The design is reasonable, simple structure, adopts four-axis crusher to break lithium battery, and increases breaker, and the broken lithium battery is broken, and the size of discharge is uniform, and the powder rate is high.

Description

Technical Field

[0001] This utility model relates to lithium battery crushing technology, specifically to a lithium battery-specific crushing system. Background Technology

[0002] The crushing system for lithium batteries uses either a single-shaft shredder or a dual-shaft shredder, each with its own limitations.

[0003] Single-shaft shredders cannot process high-strength battery cells, battery modules, and battery packs; the blades are prone to wear and chipping; the sealing is poor, leading to powder and air leakage; the output material is uniform in size, but the coating is severe.

[0004] Dual-shaft crushers produce long strips of material, resulting in uneven output size and severe entanglement. This entanglement directly affects the subsequent medium-temperature pyrolysis of batteries and the material sorting effect, greatly reducing the recovery rate of black powder (lithium battery cathode material), thus reducing the recycling effect, and also hindering the hydrometallurgical process at the tail end. Utility Model Content

[0005] In view of the above problems, this utility model proposes a lithium battery-specific crushing system, which uses a four-shaft crusher for crushing and solves the problem of severe encapsulation.

[0006] A lithium battery-specific crushing system includes a crusher; the crusher is a four-shaft crusher; the crushing system also includes a dispersing machine, which is connected to the crusher and located after the crusher.

[0007] The four-axis shredder boasts advantages such as low speed, high torque, wide material adaptability, and uniform crushing output. It is suitable for crushing almost all types of batteries, including blades, cylindrical, prismatic, pouch, battery modules, and battery packs, and achieves excellent crushing results. A dispersant is designed to further break down the crushed batteries. Statistics show that dispersing can remove over 98% of the encapsulation, leading to better results in subsequent pyrolysis and material sorting, significantly increasing the powder yield.

[0008] A further improvement to the above technical solution is that the crushing system also includes a gyratory screen, which is connected to and located after the dispersant. This gyratory screen is used for screening to separate the black powder from the copper-aluminum shells and electrode sheets.

[0009] Further improvements to the above technical solution involve a shared steel structure platform comprising the crusher, dispersant, and gyratory screen. The crusher is located on the upper layer of the platform, the dispersant on the middle layer, and the gyratory screen on the lower layer. The crusher's outlet is located above the dispersant's inlet and connected via pipe I. The dispersant's outlet is located above the gyratory screen's inlet and connected via pipe II. The overall layout is reasonable, facilitating convenient top-to-bottom material transfer.

[0010] In a further improvement to the above technical solution, the crushing system also includes a belt conveyor, which is installed on the side of the steel structure platform and its upper end is connected to the inlet of the crusher.

[0011] A further improvement to the above technical solution is that a knife gate valve I is installed at the inlet of the crusher, and a knife gate valve II is installed at the outlet. In case of a safety issue, knife gate valves I and II can be immediately closed for fire suppression.

[0012] The advantages of this invention are its reasonable design and simple structure. It uses a four-shaft crusher to crush lithium batteries and adds a dispersant to break up the crushed lithium batteries, resulting in uniform output size, low coating, and high powder yield. (Traditionally, while dispersants are also used in the lithium battery crushing and recycling process, they are typically used in the material sorting process after medium-temperature pyrolysis.) Attached Figure Description

[0013] Figure 1 This is a 3D diagram of a lithium battery-specific crushing system.

[0014] Figure 2 This is the main view of a lithium battery-specific crushing system.

[0015] The diagram shows: 1. Four-shaft crusher; 2. Disperser; 3. Vibrating screen; 4. Steel structure platform; 5. Belt conveyor; 6. Pipeline I; 7. Pipeline II; 8. Knife gate valve I; 9. Knife gate valve II. Detailed Implementation

[0016] like Figure 1-2 As shown, a lithium battery-specific crushing system includes a four-shaft crusher 1, a breaker 2, a gyratory screen 3, a steel structure platform 4, and a belt conveyor 5. The four-shaft crusher 1, breaker 2, and gyratory screen 3 are installed on the steel structure platform 4. The four-shaft crusher 1 is located on the upper layer of the steel structure platform 4, the breaker 2 is located on the middle layer of the steel structure platform 4, and the gyratory screen 3 is located on the lower layer of the steel structure platform 4. The outlet of the four-shaft crusher 1 is located above the inlet of the breaker 2 and is connected through pipe I 6. The outlet of the breaker 2 is located above the inlet of the gyratory screen 3 and is connected through pipe II 7. A knife gate valve I 8 is installed at the inlet of the four-shaft crusher 1, and a knife gate valve II 9 is installed at the outlet. The belt conveyor 5 is installed on the side of the steel structure platform 4, and its upper end is connected to the inlet of the four-shaft crusher 1.

[0017] The above embodiments are only for illustrating the technical concept and features of the utility model, and are intended to enable those skilled in the art to understand the content of the utility model and implement it accordingly. They should not be construed as limiting the scope of protection of the utility model. All equivalent changes or modifications made in accordance with the spirit and essence of the utility model should be covered within the scope of protection of the utility model.

Claims

1. A lithium battery-specific crushing system, the crushing system comprising a crusher; characterized in that, The crusher is a four-shaft crusher; the crushing system also includes a dispersing machine, which is connected to the crusher and located after the crusher.

2. The lithium battery-specific crushing system according to claim 1, characterized in that, The crushing system also includes a gyratory screen, which is connected to and located after the dispersing machine.

3. The lithium battery-specific crushing system according to claim 2, characterized in that, The crusher, dispersant, and gyratory screen are located on a shared steel structure platform. The crusher is located on the upper layer of the steel structure platform, the dispersant on the middle layer, and the gyratory screen on the lower layer. The outlet of the crusher is located above the inlet of the dispersant and is connected via pipe I. The outlet of the dispersant is located above the inlet of the gyratory screen and is connected via pipe II.

4. The lithium battery-specific crushing system according to claim 3, characterized in that, The crushing system also includes a belt conveyor, which is installed on the side of the steel structure platform and its upper end is connected to the inlet of the crusher.

5. A lithium battery-specific crushing system according to claim 1, characterized in that, The crusher is equipped with a knife gate valve I at the inlet and a knife gate valve II at the outlet.

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