Lithium battery negative electrode graphite raw material crushing device

Abstract

The utility model relates to the technical field of graphite crushing, and provides a lithium battery cathode graphite raw material crushing device which comprises a crushing box, a filter screen and a discharge pipe, the upper end of the crushing box is fixedly connected with a mounting frame, a motor is mounted at the top in the mounting frame, and an output shaft of the motor is fixedly connected with a crushing roller; the first cooling mechanism used for reducing the temperature of the graphite is arranged on the side wall of the smashing box and comprises a plurality of cooling sleeves fixedly connected to the side wall of the smashing box, the crystal structure of the graphite can be prevented from being affected by the too high temperature, and therefore the performance of the graphite serving as the lithium battery negative electrode material is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to graphite crushing technical field especially relates to a lithium battery negative pole graphite raw material crushing device. BACKGROUND

[0002] Lithium batteries are widely used in intelligent communication tools and new energy vehicles and the like, wherein the lithium battery using graphite as the negative pole material has good comprehensive performance.

[0003] Before the graphite raw material is processed into the negative pole material, the crushing device is used to break the blocky graphite raw material into powder or granular shape. The crushing device crushes the graphite block through the high-speed rotating blade. The mechanical crushing process generates heat due to the friction. The heat is accumulated in the machine body, which leads to the high temperature in the machine body. After the equipment works for a long time, the subsequently added graphite block will be crushed in the high temperature environment. The high temperature will affect the crystal structure of the graphite, which leads to the change of the layered structure of the graphite, reduces the electric conductivity, and further affects the performance of the graphite as the negative pole material of the lithium battery. SUMMARY

[0004] In view of the defects in the prior art, the main purpose of the utility model is to provide a lithium battery negative pole graphite raw material crushing device, which can effectively solve the problems in the background art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a lithium battery negative pole graphite raw material crushing device, including the crushing box, the filter screen and the discharge pipe, the crushing box upper end fixedly connected with the mounting bracket, the mounting bracket inner top is installed with the motor, the motor output shaft is fixedly connected with the crushing roller, the crushing box side wall is equipped with the first cooling mechanism, the first cooling mechanism includes a plurality of cooling sleeves fixedly connected on the side wall of the crushing box, the cooling sleeve is equipped with the water injection pipe and the water outlet pipe which are communicated with the inside, the crushing box side wall is equipped with the second cooling mechanism.

[0006] As a preferred embodiment, the second cooling mechanism includes a plurality of flow pipes fixedly connected in the crushing box, and two connecting pipes are commonly arranged on the plurality of flow pipes.

[0007] As a preferred embodiment, the crushing box upper end is equipped with a plurality of transmission rods, the transmission rod side wall is fixedly connected with the transmission gear, the crushing roller side wall is fixedly connected with the driving gear, and the transmission rod side wall is fixedly connected with a plurality of crushing blades.

[0008] As a preferred embodiment, the crushing roller lower end is equipped with the mounting rod, and the mounting rod lower end is equipped with the brush plate.

[0009] As a preferred implementation, the mounting rod and the side wall of the crushing roller are provided with connecting plates, the side wall of the connecting plate is provided with a plurality of bolts, and the bolts are provided with nuts.

[0010] As a preferred implementation, the plurality of flow pipes are arranged at equal intervals, and the plurality of cooling jackets are arranged at equal intervals.

[0011] Compared with the prior art, the lithium battery negative graphite raw material crushing device has the following beneficial effects:

[0012] 1. The first cooling mechanism is arranged, water can cool the crushing box when flowing through the cooling jacket, and the heat generated in the graphite raw material crushing process is taken away, so that the high temperature does not affect the crystal structure of graphite, thereby ensuring the performance of the lithium battery negative material.

[0013] 2. The second cooling mechanism is arranged, and the water flowing through the plurality of flow pipes can cool the graphite crushing, thereby further ensuring the performance of the lithium battery negative material. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The structure diagram of the lithium battery negative graphite raw material crushing device is provided.

[0015] Figure 2 The structure diagram of the lithium battery negative graphite raw material crushing device is provided. Figure 1 The structure diagram of the lithium battery negative graphite raw material crushing device is provided.

[0016] Figure 3 The side view of the lithium battery negative graphite raw material crushing device is provided.

[0017] Figure 4 The side view of the lithium battery negative graphite raw material crushing device is provided.

[0018] In the figure: 1, crushing box, 2, motor, 3, mounting frame, 4, filter screen, 5, water injection pipe, 6, cooling jacket, 7, crushing roller, 8, discharge pipe, 9, mounting rod, 10, brush plate, 11, transmission gear, 12, flow pipe, 13, driving gear, 14, transmission rod. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0020] Please refer to Figures 1-4This utility model provides a lithium battery negative electrode graphite raw material crushing device, including a crushing box 1, a filter screen 4 and a discharge pipe 8. A mounting frame 3 is fixedly connected to the upper end of the crushing box 1. A motor 2 is installed at the top inside the mounting frame 3. A crushing roller 7 is fixedly connected to the output shaft of the motor 2. A first cooling mechanism for reducing the temperature of graphite is provided on the side wall of the crushing box 1. The first cooling mechanism includes multiple cooling sleeves 6 fixedly connected to the side wall of the crushing box 1. A water injection pipe 5 and a water outlet pipe are provided on the cooling sleeves 6 and communicate with their interiors.

[0021] The side wall of the crushing chamber 1 is provided with a second cooling mechanism for reducing the temperature of graphite. The second cooling mechanism includes multiple flow pipes 12 fixedly connected inside the crushing chamber 1. Two connecting pipes are provided on the multiple flow pipes 12, and flanges are provided on the connecting pipes.

[0022] like Figures 1-4 As shown, the upper end of the crushing box 1 is provided with multiple transmission rods 14, and transmission gears 11 are fixedly connected to the side wall of the transmission rods 14. The side wall of the crushing roller 7 is fixedly connected to the drive gear 13, and multiple crushing blades are fixedly connected to the side wall of the transmission rods 14. More crushing components can be used to disperse the graphite blocks and improve the crushing efficiency of the graphite blocks.

[0023] like Figures 1-4 As shown, the lower end of the crushing roller 7 is provided with a mounting rod 9, and the lower end of the mounting rod 9 is provided with a brush plate 10. The details of the brush bristles of the brush plate 10 are not shown in the figure. It can clean the graphite blocks that are blocked on the filter screen 4 and ensure the filtration efficiency of the filter screen 4.

[0024] like Figures 1-4 As shown, both the mounting rod 9 and the crushing roller 7 have connecting plates on their side walls. The side walls of the connecting plates have multiple bolts with nuts on them, allowing the brush plate 10 to be disassembled for easy replacement. The crushing box 1 consists of upper and lower parts, and the dividing line is not shown in the figure.

[0025] like Figures 1-4 As shown, multiple flow pipes 12 are arranged at equal intervals to improve the uniformity of cooling in the crushing box 1, and multiple cooling sleeves 6 are arranged at equal intervals.

[0026] It should be noted that this utility model is a graphite raw material crushing device for lithium battery negative electrode. The user connects the water inlet pipe 5 to an external tap water pipe, pours the graphite raw material into the crushing box 1, starts the motor 2, and the output shaft of the motor 2 drives the crushing roller 7 to rotate to crush the graphite raw material. Graphite of the correct diameter passes through the mesh of the filter screen 4 and falls out from the discharge pipe 8. The tap water pipe enters multiple cooling jackets 6 from multiple water inlet pipes 5. When the water flows through the cooling jackets 6, it can cool the crushing box 1 and remove the heat generated during the crushing of the graphite raw material. This avoids the possibility that excessively high temperature may affect the crystal structure of graphite, thereby affecting its performance as a lithium battery negative electrode material and reducing its conductivity.

[0027] Two connecting pipes connect the external waterway, water enters the plurality of flow-through pipes 12 from one connecting pipe, and then enters another connecting pipe from the plurality of flow-through pipes 12 to return to the waterway system, and the graphite crushing can be cooled during the water flowing in the plurality of flow-through pipes 12, further avoiding the influence of high temperature on the quality of graphite.

[0028] The above are only the preferred embodiments of the present application, and not other forms of the present application limit, any skilled in the technical personnel may use the above disclosed technical content to change or modification as equivalent to the equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application, still belong to the protection scope of the technical scheme of the present application.

Claims

1. A lithium battery negative electrode graphite raw material pulverizing device, characterized in that: The device includes a crushing box (1), a filter screen (4) and a discharge pipe (8). The upper end of the crushing box (1) is fixedly connected to a mounting frame (3). A motor (2) is installed at the top inside the mounting frame (3). The output shaft of the motor (2) is fixedly connected to a crushing roller (7). The side wall of the crushing box (1) is provided with a first cooling mechanism. The first cooling mechanism includes multiple cooling sleeves (6) fixedly connected to the side wall of the crushing box (1). The cooling sleeves (6) are provided with a water injection pipe (5) and a water outlet pipe communicating with their interior. The side wall of the crushing box (1) is provided with a second cooling mechanism.

2. The lithium battery negative electrode graphite raw material pulverizing device according to claim 1, characterized in that: The second cooling mechanism includes multiple flow tubes (12) fixedly connected inside the crushing box (1), and two connecting tubes are provided on the multiple flow tubes (12).

3. The lithium battery negative electrode graphite raw material pulverizing device according to claim 2, characterized in that: The upper end of the crushing box (1) is provided with multiple transmission rods (14), and a transmission gear (11) is fixedly connected to the side wall of the transmission rod (14). The side wall of the crushing roller (7) is fixedly connected with a drive gear (13), and multiple crushing blades are fixedly connected to the side wall of the transmission rod (14).

4. The lithium battery negative electrode graphite raw material pulverizing device according to claim 3, characterized in that: The lower end of the crushing roller (7) is provided with an installation rod (9), and the lower end of the installation rod (9) is provided with a brush plate (10).

5. The lithium battery negative electrode graphite raw material pulverizing device according to claim 4, characterized in that: The mounting rod (9) and the crushing roller (7) are both provided with connecting discs on their side walls. The side walls of the connecting discs are provided with multiple bolts, and the bolts are provided with nuts.

6. The lithium battery negative electrode graphite raw material pulverizing device according to claim 2, characterized in that: Multiple flow tubes (12) are arranged at equal intervals, and multiple cooling sleeves (6) are arranged at equal intervals.

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