A grinding device for lithium battery negative electrode material

Abstract

This utility model belongs to the field of lithium battery anode material production, and discloses a grinding device for lithium battery anode materials. It includes a crushing component for relative rotational crushing of raw materials, an abrasive component for rotating and grinding the raw materials below the crushing component, and a box assembly for guiding the flow of raw materials and fragments. A material-discharging component is installed on the top of the box assembly for reciprocating movement to push the fragments outwards. The crushing component and the abrasive component are respectively arranged in the middle of the box assembly. The box assembly includes a cylindrical body, a feed hopper on one side of the top of the cylindrical body, a flow-dividing mechanism in the middle of the cylindrical body, and a discharge hopper at the bottom of the cylindrical body. The material-discharging component includes a top cover plate, a reciprocating mechanism installed below the top cover plate, and a lever installed below the reciprocating mechanism. This utility model's grinding device for lithium battery anode materials, through its external discharge and re-grinding design, avoids accumulation and blockage, improving the smoothness of device operation.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery anode material production, and in particular relates to a grinding device for lithium battery anode materials. Background Technology

[0002] With technological advancements, the grinding process for lithium battery anode materials is constantly being innovated. For example, new types of physical recycling equipment for battery electrodes employ physical crushing and sorting technologies to achieve fine grinding of various lithium battery positive and negative electrode sheets and scraps, thereby improving processing efficiency and recycling rate.

[0003] Comparing with Chinese Patent CN113798006A, which discloses an abrasive device for lithium battery negative electrode materials, the device includes a housing. A pair of inclined plates are installed on the top left side of the housing's inner cavity. A crushing structure is located below the inclined plates. A grinding structure is located on the right side of the housing's inner cavity. A horizontal plate is fixedly installed in the middle of the housing's inner cavity. Through the arrangement of the housing, inclined plates, crushing structure, grinding structure, horizontal plate, ramp, feeding structure, abrasive structure, cylinder, pusher plate, discharge pipe, and feed hopper, the device can pre-treat the raw materials, aiding in subsequent processing. It also achieves multiple grinding processes, ensuring complete material crushing. This solves the problem that current abrasive devices cannot pre-treat the raw materials, resulting in a large number of large particles remaining during subsequent processing, and that the limited abrasive steps prevent thorough grinding.

[0004] However, the raw materials that are not crushed in the above-mentioned patent will slide and accumulate between the two crushing rollers. At the same time, crushing the raw materials through the filter plate can easily cause blockage and reduce the smoothness of the device operation. Therefore, a new device needs to be designed. Utility Model Content

[0005] The purpose of this invention is to provide a grinding device for lithium battery anode materials to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A grinding device for lithium battery anode materials includes a grinding component for relative rotational grinding of raw materials, an abrasive component for rotating and grinding the raw materials below the grinding component, and a housing component for guiding the flow of raw materials and fragments. A material-discharging component for reciprocating movement to push the fragments outwards is installed on the top of the housing component. The grinding component and the abrasive component are respectively disposed in the middle of the housing component. The housing component includes a cylindrical body, a feed hopper on one side of the top of the cylindrical body, a flow-diverting mechanism in the middle of the cylindrical body, and a discharge hopper at the bottom of the cylindrical body. The material-discharging component includes a top cover plate, a reciprocating mechanism installed below the top cover plate, and a lever installed below the reciprocating mechanism.

[0008] Furthermore: the crushing assembly includes two symmetrically arranged crushing rollers, a synchronous gear set is installed behind the crushing rollers, and a first motor is arranged in front of one of the crushing rollers.

[0009] Furthermore, the surface of the crushing roller is provided with anti-slip texture.

[0010] Furthermore: the abrasive assembly includes a fixed grinding disc with a feed hole, a movable grinding disc below the fixed grinding disc, a fixed frame below the movable grinding disc, a second motor installed in the middle of the fixed frame, and the output end of the second motor being connected to the movable grinding disc via a key.

[0011] Furthermore: the diversion mechanism includes an inclined diversion screen, a second discharge channel is provided on the lower side of the diversion screen, a first discharge channel is provided above the second discharge channel, and a converging hopper is provided below the diversion screen.

[0012] Furthermore, the reciprocating mechanism includes a linear guide rail, and a linear motor is installed in the middle of the linear guide rail.

[0013] Furthermore, the lever is long and vertically oriented, and is bolted to the linear motor.

[0014] Compared with existing technologies, the beneficial effects are:

[0015] 1. The external discharge and re-grinding system avoids accumulation and blockage, improving the smoothness of the equipment operation;

[0016] 2. The inclined natural flow screening design avoids clogging caused by hard pressure;

[0017] 3. The reciprocating motion of the material discharge mechanism eliminates the need for manual operation, saving time and effort while improving safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a grinding device for lithium battery anode material according to the present invention;

[0019] Figure 2 This is a schematic diagram of the housing assembly of a grinding device for lithium battery anode materials according to the present invention;

[0020] Figure 3 This is a right perspective view of the housing assembly of a grinding device for lithium battery negative electrode materials as described in this utility model;

[0021] Figure 4 This is a schematic diagram of the pulverizing component of a grinding device for lithium battery anode materials according to the present invention;

[0022] Figure 5 This is a schematic diagram of the feeding assembly of a grinding device for lithium battery anode materials according to the present invention;

[0023] Figure 6 This is a schematic diagram of the abrasive component of a grinding device for lithium battery anode materials according to the present invention.

[0024] In the attached drawings: 101, cylindrical body; 102, feed hopper; 103, first discharge channel; 104, second discharge channel; 105, diverting screen; 106, converging hopper; 107, discharge hopper; 201, crushing roller; 202, synchronous gear set; 203, first motor; 301, upper cover plate; 302, linear guide rail; 303, linear motor; 304, lever; 401, fixed grinding disc; 402, feed hole; 403, fixed frame; 404, moving grinding disc; 405, second motor. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-6 A grinding device for lithium battery anode materials includes a grinding component for relative rotation and grinding of raw materials, an abrasive component for rotating and grinding the raw materials below the grinding component, and a housing component for guiding the flow of raw materials and fragments. A material feeding component for reciprocating movement and pushing the fragments outward is installed on the top of the housing component. The grinding component and the abrasive component are respectively arranged in the middle of the housing component.

[0027] In this embodiment: the box assembly includes a box body 101, a feeding hopper 102 is provided on one side of the top of the box body 101, a diversion mechanism is provided in the middle of the box body 101, and a discharge hopper 107 is provided at the bottom of the box body 101; the diversion mechanism includes an inclined diversion screen 105, a second discharge channel 104 is provided on one side of the lower end of the diversion screen 105, a first discharge channel 103 is provided above the second discharge channel 104, and a converging hopper is provided below the diversion screen 105. 106; The raw material is poured from the feed hopper 102 into the space between the two crushing rollers 201 inside the cylinder 101. The uncrushed raw material is discharged from the first discharge channel 103, and the crushed raw material falls onto the diversion screen 105. Large pieces of raw material flow along the diversion screen 105 to the second discharge channel 104 and are discharged. Finely crushed raw material passes through the diversion screen 105 and falls into the collection hopper 106, flowing into the feed hole 402 on the fixed grinding disc 401. The powder is discharged from the discharge hopper 107.

[0028] In this embodiment: the feeding assembly includes an upper cover plate 301, a reciprocating mechanism is installed under the upper cover plate 301, and a lever 304 is installed under the reciprocating mechanism; the reciprocating mechanism includes a linear guide rail 302, and a linear motor 303 is installed in the middle of the linear guide rail 302; the lever 304 is long and vertically arranged, and is bolted to the linear motor 303; the upper cover plate 301 supports the linear guide rail 302, and the linear motor 303 moves back and forth along the linear guide rail 302, driving the lever 304 to move back and forth to feed the uncrushed raw materials onto the first discharge channel 103 for discharge;

[0029] In this embodiment: the crushing component includes two symmetrically arranged crushing rollers 201. The surface of the crushing rollers 201 is provided with anti-slip texture. A synchronous gear set 202 is installed behind the crushing rollers 201. A first motor 203 is provided in front of one of the crushing rollers 201. The first motor 203 drives one of the crushing rollers 201 to rotate, and at the same time drives the other crushing roller 201 to rotate relative to it through the synchronous gear set 202. The two crushing rollers 201 cooperate to squeeze inward and crush the raw material.

[0030] In this embodiment: the abrasive assembly includes a fixed grinding disc 401, a feed hole 402 on the fixed grinding disc 401, a movable grinding disc 404 below the fixed grinding disc 401, a fixed frame 403 below the movable grinding disc 404, a second motor 405 installed in the middle of the fixed frame 403, and the output end of the second motor 405 connected to the movable grinding disc 404 with a key; the crushed raw material flows into the feed hole 402 on the fixed grinding disc 401, and the fixed frame 403 supports the second motor 405 to drive the movable grinding disc 404 to rotate, cooperating with the fixed grinding disc 401 to grind the finely crushed raw material into powder.

[0031] Working principle: Raw materials are poured from the feed hopper 102 into the cylinder 101 between two crushing rollers 201. The first motor 203 drives one of the crushing rollers 201 to rotate, while the other crushing roller 201 rotates relative to it via the synchronous gear set 202. The two crushing rollers 201 work together to crush the raw materials by pressing them inward. Uncrushed materials slide between the two crushing rollers 201. The upper cover plate 301 supports the linear guide rail 302. The linear motor 303 moves back and forth along the linear guide rail 302, driving the lever 304 to move back and forth, pushing the uncrushed materials to the upper discharge channel 103 for discharge. The crushed raw material falls onto the diversion screen 105. Large pieces of raw material flow along the diversion screen 105 to the second discharge channel 104 and are discharged. Fine raw material passes through the diversion screen 105 and falls into the collection hopper 106, flowing into the feed hole 402 on the fixed grinding disc 401. The fixed frame 403 supports the second motor 405 to drive the grinding disc 404 to rotate, cooperating with the fixed grinding disc 401 to grind the fine raw material into powder, which is then discharged from the discharge hopper 107. Finally, the raw material discharged from the first discharge channel 103 and the second discharge channel 104 is poured back into the box cylinder 101 from the feed hopper 102 for re-grinding.

[0032] 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 grinding device for lithium battery anode materials, comprising a grinding component for relative rotational grinding of raw materials, wherein an abrasive component for rotating and grinding the raw materials is disposed below the grinding component, characterized in that: Also include the box assembly for guiding the raw material and the flow of the box assembly, the top of the box assembly is provided with reciprocating movement for the outer row of the stirring material stirring assembly, the crushing assembly and the grinding assembly are respectively arranged in the middle of the box assembly; The box assembly includes a box cylinder (101), the top of the box cylinder (101) is provided with a feeding hopper (102), the middle of the box cylinder (101) is provided with a shunt mechanism, and the bottom of the box cylinder (101) is provided with a discharging hopper (107); The stirring assembly includes an upper cover plate (301), the lower surface of the upper cover plate (301) is provided with a reciprocating mechanism, and the lower surface of the reciprocating mechanism is provided with a stirring rod (304).

2. The powder grinding device for lithium battery negative electrode material according to claim 1, characterized in that: The crushing assembly includes two symmetrical crushing rollers (201), the rear surface of the crushing roller (201) is provided with a synchronous gear set (202), and the front surface of one of the crushing roller (201) is provided with a first motor (203).

3. The powder grinding device for lithium battery negative electrode material according to claim 2, characterized in that: The surface of the crushing roller (201) is provided with anti-skid lines.

4. The powder grinding device for lithium battery negative electrode material according to claim 1, characterized in that: The grinding assembly includes a fixed grinding disc (401), the upper surface of the fixed grinding disc (401) is provided with a feeding hole (402), the lower surface of the fixed grinding disc (401) is provided with a movable grinding disc (404), the lower surface of the movable grinding disc (404) is provided with a fixing frame (403), the middle of the fixing frame (403) is provided with a second motor (405), and the output end of the second motor (405) is connected with the movable grinding disc (404) through a flat key.

5. The powder grinding device for lithium battery negative electrode material according to claim 1, characterized in that: The shunt mechanism includes an inclined shunt screen (105), the low end of the shunt screen (105) is provided with a second discharging channel (104), the upper surface of the second discharging channel (104) is provided with a first discharging channel (103), and the lower surface of the shunt screen (105) is provided with a converging hopper (106).

6. The powder grinding device for lithium battery negative electrode material according to claim 1, characterized in that: The reciprocating mechanism includes a linear guide rail (302), and the middle of the linear guide rail (302) is provided with a linear motor (303).

7. The powder grinding device for lithium battery negative electrode material according to claim 6, characterized in that: The stirring rod (304) is long strip-shaped and vertically arranged, and is bolted with the linear motor (303).

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