Battery material mixing system

Abstract

The utility model provides a battery material mixing system. The battery material mixing system comprises a stirring tank, a feeding mechanism and a pretreatment mechanism, the feeding mechanism comprises a transverse frame horizontally arranged above the stirring tank, a second driving mechanism mounted on the transverse frame, a first driving mechanism for driving the second driving mechanism to horizontally move on the transverse frame, and a mechanical gripper driven by the second driving mechanism to move up and down; the pretreatment mechanism comprises a crushing chamber, a feeding hopper arranged at the top of the crushing chamber, a discharging opening formed in the bottom of the crushing chamber and communicated with the stirring tank, a blade or a hammer head arranged in the crushing chamber, and a third driving part for driving the blade or the hammer head to rotate in the crushing chamber. According to the utility model, the uniformity of material mixing can be effectively guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery cathode material manufacturing technology, specifically to a battery material mixing system. Background Technology

[0002] In the production process of lithium-ion battery cathode materials (such as lithium iron phosphate and ternary materials), lithium carbonate (Li2CO3) is a key lithium source material, and its particle uniformity and dispersion directly affect subsequent mixing, sintering, and the electrochemical performance of the battery. However, lithium carbonate is prone to agglomeration during storage or transportation due to moisture absorption, high temperatures, or prolonged static placement. If these hard lumps are directly added to the mixing process, the agglomerated material will be difficult to mix thoroughly with other active materials (such as lithium cobalt oxide and lithium nickel cobalt manganese oxide) or conductive agents, causing fluctuations in the cathode slurry composition and affecting battery capacity and cycle life. Utility Model Content

[0003] In order to solve the technical problems existing in the background art, this utility model proposes a battery material mixing system.

[0004] The present invention proposes a battery material mixing system, comprising: a mixing tank, a feeding mechanism, and a pretreatment mechanism;

[0005] The feeding mechanism includes a horizontal frame set above the mixing tank, a second drive mechanism mounted on the horizontal frame, a first drive mechanism that drives the second drive mechanism to move horizontally on the horizontal frame, and a mechanical gripper that is driven to move up and down by the second drive mechanism.

[0006] The pretreatment unit includes a crushing chamber, a feeding hopper located at the top of the crushing chamber, a discharge port located at the bottom of the crushing chamber, blades or hammers located inside the crushing chamber, and a third drive unit for driving the blades or hammers to rotate within the crushing chamber. The discharge port located at the bottom of the crushing chamber is connected to a mixing tank.

[0007] Preferably, a sieve plate is provided at the discharge port.

[0008] Preferably, the crushing chamber is also equipped with a cleaning brush, which rotates synchronously with the blades or hammers under the drive of the third drive component and contacts the screen plate during rotation.

[0009] Preferably, the third drive component includes a motor, which is fixed outside the crushing chamber, with the motor's output shaft extending into the crushing chamber and fixed to the blades or hammers, and the cleaning brush is fixedly connected to the motor's output shaft.

[0010] Preferably, the top of the mixing tank is provided with a feed inlet, and a vertically arranged feed pipe is provided between the mixing tank and the crushing chamber. The top end of the feed pipe is connected to and fixed with the discharge port of the crushing chamber, and the bottom end of the feed pipe is connected to and fixed with the feed inlet of the mixing tank.

[0011] Preferably, the top of the feed pipe is connected to the discharge flange of the crushing chamber.

[0012] Preferably, the lower end of the feed pipe is welded to or flanged to the feed inlet of the mixing tank.

[0013] Preferably, a slide is provided on the crossbeam, and a second drive mechanism is mounted on the slide and connected to the mechanical gripper to drive the mechanical gripper to move up and down; the first drive mechanism is used to drive the slide to move horizontally on the crossbeam.

[0014] Preferably, it also includes a support platform, with the mixing tank located below the support platform, the pretreatment mechanism fixedly installed on the support platform, and the feeding mechanism located above the support platform.

[0015] In operation, the mechanical gripper in the feeding mechanism of this invention grabs the material bag, and the first driving component and the second driving component cooperate to transfer the grabbed material bag to the top of the feeding hopper. At this time, the material bag is opened so that the material enters the crushing chamber through the feeding hopper. The rotating blades or hammers in the crushing chamber break up the lumpy material to ensure that the particle size of the material entering the mixing tank meets the requirements, thereby ensuring the uniformity of the mixing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a battery material mixing system proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the pretreatment mechanism in a battery material mixing system proposed in this utility model. Detailed Implementation

[0018] Reference Figure 1-2 The present invention proposes a battery material mixing system, comprising: a mixing tank 1, a feeding mechanism, a pretreatment mechanism, and a feed pipe 11.

[0019] The mixing tank 1 is provided with a feed inlet at the top. The feeding mechanism includes a horizontal frame 2 arranged horizontally above the mixing tank 1, a slide 3 mounted on the horizontal frame 2, a first drive component 4 that drives the slide 3 to move horizontally on the horizontal frame 2, a mechanical gripper 5 for grabbing the material bag R, and a second drive component 6 mounted on the slide 3 and connected to the mechanical gripper 5 to drive the mechanical gripper 5 to move up and down.

[0020] The pretreatment mechanism includes a crushing chamber 7, a feeding hopper 8 located at the top of the crushing chamber 7, a discharge port located at the bottom of the crushing chamber 7, blades or hammers 9 located inside the crushing chamber 7, and a third drive unit 10 for driving the blades or hammers 9 to rotate within the crushing chamber 7. The feed pipe 11 is vertically arranged, with its top end connected to and fixed to the discharge port of the crushing chamber 7, and its lower end connected to and fixed to the feed port of the mixing tank 1.

[0021] During operation, the mechanical gripper 5 in the feeding mechanism grabs the material bag R. The first drive component 4 and the second drive component 6 cooperate to transfer the grabbed material bag R above the feeding hopper 8. Then, the material bag R is opened to allow the material inside to enter the feeding hopper 8 and then into the crushing chamber 7. After the material enters the crushing chamber 7, the blades or hammers 9 rotating inside the crushing chamber 7 break up any clumps of material to ensure that the particle size of the material entering the mixing tank 1 meets the requirements, thereby ensuring the uniformity of the mixing.

[0022] In addition, this embodiment also provides a sieve plate 12 at the junction of the discharge port and the feed pipe 11. The sieve plate 12 is used to screen the crushed material to ensure that the particle size meets the requirements.

[0023] Furthermore, this embodiment also includes a cleaning brush 13 inside the crushing chamber 7. The cleaning brush 13 rotates synchronously with the blades or hammers 9 under the drive of the third drive component 10, and contacts the screen plate 12 during rotation. This allows the cleaning brush 13 to sweep materials that do not meet the particle size requirements back to the working area of ​​the blades or hammers 9 for secondary crushing until all materials are within acceptable limits. Specifically, the third drive component 10 includes a motor, which is fixed outside the crushing chamber 7. The motor's output shaft extends into the crushing chamber 7 and is fixed to the blades or hammers 9. The cleaning brush 13 is fixedly connected to the motor's output shaft.

[0024] Furthermore, in order to facilitate the disassembly and maintenance of the screen plate 12, the top of the feed pipe 11 in this embodiment is connected to the discharge port flange of the crushing chamber 7.

[0025] In addition, the lower end of the feed pipe 11 is welded or flanged to the feed inlet of the mixing tank 1.

[0026] In addition, the battery material mixing system proposed in this utility model also includes a support platform, a mixing tank 1 is set below the support platform, a pretreatment mechanism is fixedly installed on the support platform, and a feeding mechanism is set above the support platform.

[0027] In operation, the mechanical gripper 5 in the feeding mechanism grabs the material bag R. The first driving component 4 and the second driving component 6 cooperate to transfer the grabbed material bag R to the top of the feeding hopper 8. At this time, the material bag R is opened so that the material enters the crushing chamber 7 through the feeding hopper 8. The rotating blades or hammers 9 in the crushing chamber 7 break up the lumpy material to ensure that the particle size of the material entering the mixing tank 1 meets the requirements, thereby ensuring the uniformity of the mixing.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A battery material mixing system, comprising: include: The mixing tank, feeding mechanism, and pretreatment mechanism are included. The feeding mechanism includes a horizontal frame set above the mixing tank, a second drive mechanism mounted on the horizontal frame, a first drive mechanism that drives the second drive mechanism to move horizontally on the horizontal frame, and a mechanical gripper that is driven to move up and down by the second drive mechanism. The pretreatment mechanism includes a crushing chamber, a feeding hopper set at the top of the crushing chamber, a discharge port set at the bottom of the crushing chamber and communicating with the mixing tank, blades or hammers set inside the crushing chamber, and a third drive component that drives the blades or hammers to rotate inside the crushing chamber.

2. The battery material mixing system according to claim 1, characterized in that, A sieve plate is installed at the discharge port.

3. The battery material mixing system of claim 2, wherein, The crushing chamber is also equipped with a cleaning brush, which rotates synchronously with the blades or hammers under the drive of the third drive component and comes into contact with the screen plate during the rotation.

4. The battery material mixing system of claim 3, wherein, The third drive component includes a motor, which is fixed outside the crushing chamber. The output shaft of the motor extends into the crushing chamber and is fixed to the blades or hammers. The cleaning brush is fixedly connected to the output shaft of the motor.

5. The battery material mixing system of claim 2, wherein, The mixing tank is equipped with a feed inlet at the top; a vertical feed pipe is installed between the mixing tank and the crushing chamber, with the top end of the feed pipe connected to and fixed to the discharge outlet of the crushing chamber, and the bottom end of the feed pipe connected to and fixed to the feed inlet of the mixing tank.

6. The battery material mixing system of claim 5, wherein, The top of the feed pipe is connected to the discharge flange of the crushing chamber; the screen plate is located at the junction of the discharge port and the feed pipe.

7. The battery material mixing system of claim 5, wherein, The lower end of the feed pipe is welded or flanged to the feed inlet of the mixing tank.

8. The battery material mixing system of claim 1, wherein, A slide is provided on the cross frame, and a second drive mechanism is installed on the slide and connected to the mechanical gripper to drive the mechanical gripper to move up and down; the first drive mechanism is used to drive the slide to move horizontally on the cross frame.

9. The battery material mixing system of any one of claims 1-8, wherein, Preferably, it also includes a support platform, with the mixing tank located below the support platform, the pretreatment mechanism fixedly installed on the support platform, and the feeding mechanism located above the support platform.

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