A positive electrode material coarse crushing device

Abstract

The utility model discloses a kind of positive electrode material coarse crushing devices, it is related to battery material crushing technical field.The utility model includes discharge frame, crushing bin and material conveying frame, both sides wall in discharge frame is fixed with fixed plate, the bottom of two fixed plates is fixed with receiving plate, two receiving plates are symmetrically set, the side of two receiving plates away from each other is fixed with reed, the top of discharge frame is fixedly connected with crushing bin, the top of crushing bin is fixed with material conveying frame, the both sides wall of material conveying frame is fixed with three vertical parallel elastic material conveying plate, the elastic material conveying plate of material conveying frame both sides wall is symmetrically set, the elastic material conveying plate between material conveying frame both sides wall is symmetrically set.The utility model sets up discharge frame, crushing bin and material conveying frame, solve the positive electrode material input speed in positive electrode material coarse crushing device feeding, crushing is not enough, and the impact intensity of positive electrode material after completing crushing to discharge hopper is greater, affect the problem of discharge hopper durability.

Description

Technical Field

[0001] This utility model belongs to the field of battery material crushing technology, and in particular relates to a coarse crushing device for positive electrode materials. Background Technology

[0002] Cathode material crushing is a crucial step in the production and recycling of lithium batteries. During the production of lithium battery cathode materials, the semi-finished product after high-temperature sintering typically needs to be crushed and graded to meet product standards. For effective recycling and separation of waste lithium batteries, a combination of crushing and screening, followed by airflow sorting, is used to achieve effective separation and recycling of aluminum and black powder from the cathode material. However, this process still has the following drawbacks in practical use:

[0003] In the process of battery material crushing production, crushing is carried out directly using a crushing device. During the process of the positive electrode material being transported into the crushing device, the conveying speed of the positive electrode material is relatively fast, which will cause some positive electrode material to pass through the crushing device at a high speed and not be crushed sufficiently.

[0004] Secondly, after the cathode material is crushed, it is directly fed into the discharge hopper. However, during the discharge process, the material directly impacts the discharge hopper. The impact speed and force are relatively large, which can easily damage the discharge hopper during operation and affect its durability. Utility Model Content

[0005] The purpose of this utility model is to provide a coarse crushing device for cathode materials. By setting up a discharge frame, a crushing chamber and a conveying frame, it solves the problems of the cathode material input speed being too fast and the crushing not being sufficient, and the large impact force of the cathode material on the discharge hopper after crushing affecting the durability of the discharge hopper.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a coarse crushing device for positive electrode materials, comprising a discharge frame, a crushing chamber, and a conveying frame. Fixed plates are fixed to both side walls of the discharge frame, and receiving plates are fixed to the bottom of each of the two fixed plates. The two receiving plates are symmetrically arranged, and springs are fixed to the sides of the two receiving plates that are far apart from each other. The top of the discharge frame is fixedly connected to the crushing chamber, and the top of the crushing chamber is fixed to the conveying frame. Three vertically arranged elastic conveying plates are fixed to both side walls of the conveying frame, and the elastic conveying plates on both side walls of the conveying frame are symmetrically arranged. During operation, the crushed material in the crushing chamber is output through the discharge frame. During the material output process, the material falls onto the receiving plates in the discharge frame and is buffered by the springs. In the positive electrode material conveying process, the material is conveyed from the conveying frame to the crushing chamber for crushing, and after crushing in the crushing chamber, it is conveyed to the discharge frame.

[0008] Furthermore, a discharge hopper is fixedly connected to the bottom of the discharge frame, and symmetrical support pillars are fixed on both sides of the discharge frame. The discharge hopper on the discharge frame collects and outputs the material in the discharge frame to the collection device.

[0009] Furthermore, the top of the spring is fixed to the inner wall of the discharge frame and positioned below the fixing plate, while the bottom of the spring is fixed to the inclined surface of the inner wall of the discharge hopper. During operation, the spring, by being fixed to the discharge frame and the discharge hopper, buffers and decelerates the material received on the receiving plate.

[0010] Furthermore, the crushing chamber is symmetrically connected to drive rollers, and crushing teeth are evenly fixed on the periphery of both drive rollers. The crushing teeth on the periphery of the two drive rollers are staggered. When the crushing chamber is working, the drive rollers rotate, which drives the crushing teeth to rotate, so that the material is crushed as the crushing teeth rotate.

[0011] Furthermore, the crushing chamber has openings at the center of both the top and bottom, the discharge frame is connected to the opening at the bottom of the crushing chamber, and the conveying frame is connected to the opening at the top of the crushing chamber, so that the material passes through the crushing chamber.

[0012] Furthermore, a speed reducer is symmetrically fixed at one end of the crushing chamber, and the output ends of the two speed reducers are respectively fixed to one end of the two drive rollers. A drive motor is fixed on the side of each speed reducer away from the crushing chamber, and the output end of the drive motor is fixed to the input end of the speed reducer. The drive motor drives the speed reducer to work and drives the drive roller to rotate.

[0013] This utility model has the following beneficial effects:

[0014] This invention solves the problem of insufficient crushing due to the high input speed of cathode material in the coarse crushing device by setting up a crushing chamber and a conveying frame. The battery cathode material is directly conveyed to the conveying frame. When the material passes through the conveying frame, it is first blocked and slowed down by the two uppermost elastic conveying plates. After slowing down, it falls to the two middle elastic conveying plates for further blocking and slowing down. Finally, it falls between the two lowermost elastic conveying plates in the conveying frame and is slowed down before falling into the crushing chamber. At the same time, the drive motor is started, which drives the reducer to work. When the reducer is working, it drives the drive roller to rotate, and in the rotation of the drive roller, it drives the crushing teeth to rotate, crushing the material entering the crushing chamber. After crushing, it falls into the discharge frame. Through the step-like deceleration of the multi-layer elastic conveying plates, the input speed of cathode material in the coarse crushing device is slower, and the crushing is more thorough.

[0015] This invention solves the problem of the large impact force on the discharge hopper after the cathode material is crushed, which affects the durability of the discharge hopper, by setting up a discharge frame and a crushing chamber. After being crushed in the crushing chamber, the material is transported to the discharge frame and falls onto the receiving plate. The impact of the crushed material is initially reduced by the receiving plate and further reduced by the spring, preventing the crushed material from falling directly onto the inner wall of the discharge frame and causing wear on the discharge hopper. This results in a smaller impact force on the discharge hopper after the cathode material is crushed, and a smaller impact on the durability of the discharge hopper. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional view of the assembly structure of a coarse crushing device for positive electrode materials;

[0018] Figure 2 This is a three-dimensional view of the cut-out structure of the discharge frame.

[0019] Figure 3 This is a three-dimensional view of the structure after the fixed plate, receiving plate and spring are combined.

[0020] Figure 4 This is a three-dimensional view of the crushing chamber section after it has been partially cut open.

[0021] Figure 5 This is a three-dimensional view of the material conveyor frame after it has been cut open.

[0022] Figure label:

[0023] 1. Discharge frame; 101. Discharge hopper; 102. Fixing plate; 103. Receiving plate; 104. Spring; 105. Support column; 2. Crushing chamber; 201. Opening; 202. Drive roller; 203. Crushing teeth; 204. Reducer; 205. Drive motor; 3. Conveying frame; 301. Elastic conveying plate. 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 skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0025] Please see Figure 1-3 This utility model relates to a coarse crushing device for positive electrode materials, comprising a discharge frame 1, a crushing chamber 2, and a conveying frame 3. Fixed plates 102 are fixed to both side walls of the discharge frame 1. The discharge frame 1 transfers the crushed material from the crushing chamber 2 to the discharge hopper 101. A receiving plate 103 is fixed to the bottom of each of the two fixed plates 102. The two receiving plates 103 are symmetrically arranged. The receiving plates 103 connected to the fixed plates 102 are made of steel with a certain degree of elasticity. Springs 104 are fixed to the opposite sides of the two receiving plates 103. The springs 104 provide support to the receiving plates 103 and reduce the impact of the falling material after the receiving plates 103 contact the material. The top of the structure is fixedly connected to the crushing chamber 2. The structure in the crushing chamber 2 will initially crush the positive electrode material of the battery. The top of the crushing chamber 2 is fixed with a conveying frame 3. Three vertically arranged elastic conveying plates 301 are fixed on both sides of the conveying frame 3. The elastic conveying plates 301 on both sides of the conveying frame 3 are symmetrically arranged. The width of the three elastic conveying plates 301 on the same side increases from top to bottom. When feeding, the positive electrode material of the battery is poured into the conveying frame 3 and conveyed through the conveying frame 3. The material is received by the elastic conveying plates 301, which slows down the material falling and affects the material conveying speed in the crushing chamber 2.

[0026] Specifically, the bottom of the discharge frame 1 is fixedly connected to the discharge hopper 101, and the two sides of the discharge frame 1 are symmetrically fixed with support columns 105. The discharge hopper 101 at the bottom of the discharge frame 1 concentrates and outputs the material in the discharge frame 1, and the support columns 105 on the outside of the discharge frame 1 support the discharge frame 1 on the working plane.

[0027] Furthermore, the top of the spring 104 is fixed to the inner wall of the discharge frame 1 and is located below the fixing plate 102. The bottom of the spring 104 is fixed to the inclined surface of the inner wall of the discharge hopper 101. The spring 104 is made of spring steel and is fixed inside the discharge frame 1 and the discharge hopper 101 to support the connecting plate 103.

[0028] The operation process of this embodiment is as follows: During operation, the material after being crushed in the crushing chamber 2 is conveyed to the discharge frame 1. The material falls onto the receiving plate 103. The impact of the crushed material is initially reduced by the receiving plate 103, and the impact is further reduced by the spring 104 to prevent the crushed material from falling directly onto the inner wall of the discharge frame 1 and causing wear to the discharge hopper 101. Specific Implementation Example 2

[0029] Please see Figure 1-5 Based on the first specific embodiment, drive rollers 202 are symmetrically rotatably connected inside the crushing chamber 2. Crushing teeth 203 are evenly fixed on the periphery of both drive rollers 202. The crushing teeth 203 on the periphery of the two drive rollers 202 are staggered. When the drive rollers 202 inside the crushing chamber 2 rotate, they drive the crushing teeth 203 to rotate, thereby crushing the material entering the crushing chamber 2.

[0030] Specifically, the top and bottom center of the crushing chamber 2 are both provided with openings 201. The discharge frame 1 is connected to the opening 201 at the bottom of the crushing chamber 2, and the conveying frame 3 is connected to the opening 201 at the top of the crushing chamber 2. This allows the material to be conveyed from the conveying frame 3 into the crushing chamber 2 during operation, and the crushed material in the crushing chamber 2 is conveyed to the discharge frame 1.

[0031] Furthermore, a reducer 204 is symmetrically fixed at one end of the crushing chamber 2. The output ends of the two reducers 204 are respectively fixed to one end of the two drive rollers 202. A drive motor 205 is fixed on the side of each reducer 204 away from the crushing chamber 2. The output end of the drive motor 205 is fixed to the input end of the reducer 204. The drive motor 205 drives the reducer 204 to work, and when the reducer 204 is working, it drives the drive roller 202 to rotate.

[0032] The operation process of this embodiment is as follows: During operation, the positive electrode material of the battery is directly conveyed into the conveying frame 3. When the material passes through the conveying frame 3, it is first blocked and slowed down by the two uppermost elastic conveying plates 301. After slowing down, it falls onto the two middle elastic conveying plates 301 for further blocking and slowing down. Finally, it falls between the two lowermost elastic conveying plates 301 in the conveying frame 3 and is slowed down before falling into the crushing chamber 2. At the same time, the drive motor 205 is started, and the drive motor 205 drives the reducer 204 to work. When the reducer 204 is working, it drives the drive roller 202 to rotate. In the rotation of the drive roller 202, the crushing teeth 203 are driven to rotate, crushing the material entering the crushing chamber 2. After crushing, the material falls into the discharge frame 1.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A coarse crushing device for positive electrode materials, comprising a discharge frame (1), a crushing chamber (2), and a conveying frame (3), characterized in that: Fixed plates (102) are fixed on both sides of the discharge frame (1). A receiving plate (103) is fixed at the bottom of each of the two fixed plates (102). The two receiving plates (103) are symmetrically arranged. A spring (104) is fixed on the side of each receiving plate (103) that is far away from each other. The top of the discharge frame (1) is fixedly connected to the crushing chamber (2). The top of the crushing chamber (2) is fixedly connected to the conveying frame (3). Three vertically arranged elastic conveying plates (301) are fixed on both sides of the conveying frame (3). The elastic conveying plates (301) on both sides of the conveying frame (3) are symmetrically arranged. The elastic conveying plates (301) on both sides of the conveying frame (3) are symmetrically arranged with each other.

2. The coarse crushing device for positive electrode materials according to claim 1, characterized in that: The bottom of the discharge frame (1) is fixedly connected to the discharge hopper (101), and both sides of the discharge frame (1) are symmetrically fixed with support columns (105).

3. The coarse crushing device for positive electrode materials according to claim 2, characterized in that: The top of the spring (104) is fixed on the inner wall of the discharge frame (1) and set below the fixing plate (102), and the bottom of the spring (104) is fixed on the inclined surface of the inner wall of the discharge hopper (101).

4. The coarse crushing device for positive electrode materials according to claim 1, characterized in that: The crushing chamber (2) is symmetrically connected to the drive rollers (202). Both drive rollers (202) have crushing teeth (203) evenly fixed on their periphery. The crushing teeth (203) on the periphery of the two drive rollers (202) are arranged alternately.

5. The coarse crushing device for positive electrode materials according to claim 1, characterized in that: The crushing chamber (2) has an opening (201) at the top and bottom center. The discharge frame (1) is connected to the opening (201) at the bottom of the crushing chamber (2), and the conveying frame (3) is connected to the opening (201) at the top of the crushing chamber (2).

6. The coarse crushing device for positive electrode materials according to claim 4, characterized in that: A speed reducer (204) is symmetrically fixed at one end of the crushing chamber (2). The output ends of the two speed reducers (204) are respectively fixed to one end of the two drive rollers (202). A drive motor (205) is fixed on the side of each speed reducer (204) away from the crushing chamber (2). The output end of the drive motor (205) is fixed to the input end of the speed reducer (204).

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