Novel silicon-carbon negative electrode material production device

By using a protective frame and a protective tank to cover the liquid spray port in the silicon carbon negative electrode material production device, combined with the liquid spray assembly and agitating assembly, the problems of uneven liquid distribution and external debris entering are solved, uniform spraying and full stirring are achieved, and production efficiency and equipment protection are improved.

CN223299921UActive Publication Date: 2025-09-05NANJING TONGNING INSTITUTE OF NEW MATERIALS
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Patent Information

Application Number
CN202422513036.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-16
Publication Date
2025-09-05
Estimated Expiration
2034-10-16

AI Technical Summary

Technical Problem

During the production process of silicon carbon negative electrode materials, uneven liquid distribution leads to insufficient stirring of the material. At the same time, external debris can easily enter through the opening at the top of the mixing box, affecting the mixing effect.

Method used

The protective frame and protective tank body are used to cover the liquid spray port, and combined with the liquid spray assembly and the stirring assembly to achieve uniform spraying of liquid and material mixing to prevent external debris from entering.

Benefits of technology

It realizes uniform spraying of liquids and sufficient stirring of materials, improves the mixing effect, prevents external debris pollution, and reduces the labor intensity of staff.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of silicon-carbon negative electrode material production, and particularly discloses a novel silicon-carbon negative electrode material production device which comprises a material mixing box, a stirring assembly and a liquid spraying assembly, a feeding pipe, a discharging pipe and a protection frame are fixedly arranged on the material mixing box, a liquid spraying opening is formed in the material mixing box, a discharging valve is fixedly arranged on the discharging pipe, the liquid spraying opening is located in the inner side of the protection frame, a protection groove body is arranged on the protection frame in a sliding mode, the liquid spraying assembly is connected with the protection groove body, the stirring assembly is connected with the material mixing box, and the stirring assembly is connected with the material mixing box. The mixing box solves the problem that external sundries easily enter the mixing box through the opening in the top end of the mixing box in the prior art.
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Description

Technical Field

[0001] The utility model relates to the technical field of silicon-carbon negative electrode material production, in particular to a novel silicon-carbon negative electrode material production device. Background Art

[0002] Silicon-carbon negative electrode materials are gradually becoming the top choice for battery companies and lithium battery material manufacturers to improve negative electrodes due to their abundant reserves and ultra-high theoretical specific capacity. They are one of the most promising next-generation lithium-ion battery negative electrode materials.

[0003] When producing silicon-carbon negative electrode materials, multiple materials need to be transported and mixed separately, and then the materials after the last mixing step are dried and carbonized. When mixing silicon-carbon negative electrode materials, multiple liquids such as adhesives need to be added to the mixing box, but because the feeding position is fixed, the liquid may be unevenly distributed, resulting in the material not being fully stirred; in order to solve this problem, many existing mixing devices for silicon-carbon negative electrode material production have an opening at the top of the mixing box, and allow the nozzle to extend into the opening. By moving the nozzle along the length of the opening, the liquid is evenly sprayed into the mixing box. However, when the nozzle is moved to spray the liquid, the opening at the top of the mixing box is open, and external debris can easily enter the mixing box through the opening, affecting the mixing effect. Utility Model Content

[0004] In order to solve the above-mentioned technical problem that foreign matter can easily enter the mixing box through the top opening of the mixing box, the utility model provides a novel silicon-carbon negative electrode material production device.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A novel silicon-carbon negative electrode material production device includes a mixing box, a stirring assembly and a liquid spraying assembly; the mixing box is fixedly provided with a feed pipe, a discharge pipe and a protective frame, and is provided with a liquid spraying port, the discharge pipe is fixedly provided with a discharge valve, the liquid spraying port is located on the inner side of the protective frame, a protective trough body is slidably provided on the protective frame, the liquid spraying assembly is connected to the protective trough body, and the stirring assembly is connected to the mixing box.

[0007] Furthermore, the liquid spraying assembly includes an electric push rod, a connecting frame, a lifting plate, a support rod, a nozzle and a lifting tube. The electric push rod and the support rod are fixedly connected to the protective trough body, the lifting plate is fixedly connected to the lifting tube and is slidably connected to the support rod, the connecting frame is fixedly connected to the free end of the electric push rod and the lifting plate, the lifting tube is slidably connected to the protective trough body, and the bottom end extends into the liquid spraying port, and the nozzle is fixedly connected to the bottom end of the lifting tube.

[0008] Furthermore, a mixing tube with closed ends on both sides is fixedly provided on the top of the lifting tube, a plurality of liquid inlet pipes are fixedly provided on the mixing tube, and a liquid inlet valve and a hose are fixedly provided on the liquid inlet pipe.

[0009] Furthermore, the stirring assembly includes a stirring motor and a stirring shaft. A mounting plate is fixedly provided on the mixing box, the stirring motor is fixedly connected to the mounting plate, one end of the stirring shaft is rotatably connected to the mixing box, and the other end is fixedly connected to the motor shaft of the stirring motor, and a plurality of stirring rods are fixedly provided on the stirring shaft.

[0010] Furthermore, a moving component is provided on the mixing box, and the moving component is connected to the protection tank body.

[0011] Furthermore, the moving assembly includes a moving seat, a moving block, a placement plate, a moving motor, a moving threaded rod and a guide rod. The moving seat is fixedly connected to the mixing box, the placement plate is fixedly connected to the moving seat and the moving motor, one end of the moving threaded rod is rotatably connected to the moving seat, and the other end is fixedly connected to the motor shaft of the moving motor, the guide rod is fixedly connected to the moving seat, the moving block is threadedly connected to the moving threaded rod, and is slidably connected to the guide rod, and the protective trough is fixedly connected to the moving block.

[0012] Furthermore, it also includes a limiting plate, which is fixedly connected to the top end of the support rod.

[0013] Furthermore, a baffle is fixedly provided in the protection tank body.

[0014] Furthermore, there are two baffles, and the lifting pipe is located between the two baffles.

[0015] Furthermore, a plurality of supporting legs are fixedly provided at the bottom end of the mixing box.

[0016] Beneficial effects of the utility model:

[0017] 1. The utility model adopts a protective frame and a protective trough to protect the liquid spraying port when the liquid spraying assembly is moved, preventing foreign matter from entering the mixing box through the liquid spraying port, thus solving the problem that foreign matter can easily enter the mixing box through the top opening of the mixing box;

[0018] 2. The utility model adopts a liquid spraying component and a moving component to spray the liquid evenly into the mixing box, so that the mixing effect of the material and liquid in the mixing box is better;

[0019] 3. The utility model adopts a stirring component to mix and stir the material and liquid in the mixing box. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is a schematic structural diagram of a novel silicon-carbon negative electrode material production device in the present utility model;

[0021] Figure 2 for Figure 1 sectional view of

[0022] Figure 3 for Figure 2 Schematic diagram of the structure of the liquid spray assembly;

[0023] Figure 4 for Figure 2 Schematic diagram of the structure of the mobile component;

[0024] Figure 5 for Figure 2 A partial enlarged view of part A;

[0025] Among them, 1-mixing box, 2-support foot, 3-discharge pipe, 4-discharge valve, 5-mounting plate, 6-stirring motor, 7-protection trough, 8-moving seat, 9-guide rod, 10-feeding pipe, 11-feeding valve, 12-moving threaded rod, 13-placing plate, 14-moving motor, 15-protection frame, 16-spraying assembly, 17-spraying port, 18-stirring rod, 19-stirring shaft, 20-moving block, 21-spray head, 22-lifting tube, 23-baffle, 24-electric push rod, 25-connecting frame, 26-mixing tube, 27-hose, 28-liquid inlet pipe, 29-liquid inlet valve, 30-limiting plate, 31-support rod, 32-lifting plate. DETAILED DESCRIPTION

[0026] In order to deepen the understanding of the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. The embodiments are only used to explain the present invention and do not limit the scope of protection of the present invention.

[0027] Example:

[0028] The specific implementation process of this utility model: a new silicon-carbon negative electrode material production device, such as Figure 1 and Figure 2 As shown, it includes a mixing box 1, a stirring assembly and a liquid spraying assembly 16; the mixing box 1 is fixedly provided with a feed pipe 10, a discharge pipe 3 and a protective frame 15, and is provided with a liquid spraying port 17, the discharge pipe 3 is fixedly provided with a discharge valve 4, the liquid spraying port 17 is located on the inner side of the protective frame 15, a protective trough 7 is slidably provided on the protective frame 15, the liquid spraying assembly 16 is connected to the protective trough 7, and the stirring assembly is connected to the mixing box 1.

[0029] A feed valve 11 is fixedly provided on the feed pipe 10. When mixing is required, the discharge valve 4 is first closed and the feed valve 11 is opened to allow the material to enter the mixing box 1 from the feed pipe 10. The liquid spraying component 16 is moved to allow the liquid spraying component 16 to spray liquid into the mixing box 1. The stirring component will evenly stir the material and liquid. After stirring is completed, the discharge valve 4 is opened to discharge the material. The protective tank body 7 will move together with the liquid spraying component 16 and together with the protective frame 15 form a protection for the liquid spraying port 17 to prevent external debris from entering the mixing box 1 through the liquid spraying port 17.

[0030] like Figure 1 、 Figure 2 、 Figure 3 as well as Figure 5 As shown, the liquid spraying assembly 16 includes an electric push rod 24, a connecting frame 25, a lifting plate 32, a support rod 31, a nozzle 21 and a lifting tube 22. The electric push rod 24 and the support rod 31 are fixedly connected to the protective tank body 7. The lifting plate 32 is fixedly connected to the lifting tube 22 and is slidably connected to the support rod 31. The connecting frame 25 is fixedly connected to the free end of the electric push rod 24 and the lifting plate 32. The lifting tube 22 is slidably connected to the protective tank body 7, and the bottom end extends into the liquid spraying port 17. The nozzle 21 is fixedly connected to the bottom end of the lifting tube 22.

[0031] When liquid is to be sprayed, first move the protective tank body 7, let the protective tank body 7 move to the top of the liquid spray port 17 with the lifting tube 22 and the nozzle 21, then operate the electric push rod 24, let the free end of the electric push rod 24 move downward, the free end of the electric push rod 24 will move downward with the connecting frame 25, the lifting plate 32, the lifting tube 22 and the nozzle 21, the nozzle 21 will pass through the liquid spray port 17 and enter the mixing box 1, let the liquid enter the nozzle 21 from the lifting tube 22, and enter the mixing box 1 through the nozzle 21, and at the same time move the protective tank body 7, let the protective tank body 7 bring The nozzle 21 and the lifting tube 22 move along the length direction of the liquid spraying port 17 to evenly spray the liquid into the mixing box 1; after spraying, operate the electric push rod 24 to move the free end of the electric push rod 24 upward, and the free end of the electric push rod 24 will move upward with the connecting frame 25, the lifting plate 32, the lifting tube 22 and the nozzle 21, and the nozzle 21 will enter the protective frame 15, and then move the protective tank body 7 to move the protective tank body 7 with the nozzle 21 until the nozzle 21 moves to one end of the protective frame 15, so that the liquid spraying port 17 is no longer directly below the nozzle 21.

[0032] like Figure 1 、 Figure 2 、 Figure 3 as well as Figure 5As shown, a mixing tube 26 with closed ends on both sides is fixedly provided on the top of the lifting tube 22, and a plurality of liquid inlet pipes 28 are fixedly provided on the mixing tube 26, and a liquid inlet valve 29 and a hose 27 are fixedly provided on the liquid inlet pipe 28.

[0033] The hose 27 can be connected to an external liquid supply device. When the liquid inlet valve 29 is opened, the liquid can enter the mixing tube 26 through the hose 27 and the liquid inlet pipe 28, then enter the lifting pipe 22 from the mixing tube 26, and then be sprayed out through the nozzle 21.

[0034] like Figure 1 and Figure 2 As shown, the stirring assembly includes a stirring motor 6 and a stirring shaft 19. A mounting plate 5 is fixedly provided on the mixing box 1. The stirring motor 6 is fixedly connected to the mounting plate 5. One end of the stirring shaft 19 is rotatably connected to the mixing box 1, and the other end is fixedly connected to the motor shaft of the stirring motor 6. A plurality of stirring rods 18 are fixedly provided on the stirring shaft 19.

[0035] When stirring is to be performed, the stirring motor 6 is started, and the stirring motor 6 rotates together with the stirring shaft 19 and the plurality of stirring rods 18 , and the stirring rods 18 can stir and mix the material and the liquid.

[0036] like Figure 1 and Figure 2 As shown, a moving component is provided on the mixing box 1, and the moving component is connected to the protection tank body 7.

[0037] The moving assembly can move the protective tank 7, reducing the labor intensity of the staff.

[0038] like Figure 1 、 Figure 2 as well as Figure 4 As shown, the moving assembly includes a moving seat 8, a moving block 20, a placement plate 13, a moving motor 14, a moving threaded rod 12 and a guide rod 9. The moving seat 8 is fixedly connected to the mixing box 1, the placement plate 13 is fixedly connected to the moving seat 8 and the moving motor 14, one end of the moving threaded rod 12 is rotatably connected to the moving seat 8, and the other end is fixedly connected to the motor shaft of the moving motor 14, the guide rod 9 is fixedly connected to the moving seat 8, the moving block 20 is threadedly connected to the moving threaded rod 12, and is slidably connected to the guide rod 9, and the protective trough 7 is fixedly connected to the moving block 20.

[0039] When the protective trough body 7 needs to be moved, the moving motor 14 is started, and the moving motor 14 will rotate together with the moving threaded rod 12, and the moving block 20 will slide along the guide rod 9 and move together with the protective trough body 7. The moving motor 14 can rotate forward and backward, so that the moving block 20 can move the protective trough body 7 back and forth along the length direction of the guide rod 9.

[0040] like Figure 1 、 Figure 2 、 Figure 3 as well as Figure 5 As shown, a limiting plate 30 is also included, and the limiting plate 30 is fixedly connected to the top end of the support rod 31.

[0041] The limiting plate 30 can limit the lifting plate 32 to prevent the lifting plate 32 from upwardly separating from the support rod 31 , and the lifting tube 22 is slidably connected to the limiting plate 30 .

[0042] like Figure 2 、 Figure 3 as well as Figure 5 As shown, a baffle 23 is fixedly provided in the protection tank 7 .

[0043] The baffle 23 can protect the nozzle 21 after the liquid spraying port 17 is no longer located directly below the nozzle 21, thereby preventing the material and liquid from adhering to the nozzle 21 during stirring.

[0044] like Figure 2 、 Figure 3 as well as Figure 5 As shown, there are two baffles 23 , and the lifting pipe 22 is located between the two baffles 23 .

[0045] The two baffles 23 can protect the nozzle 21 when the nozzle 21 moves to either end of the protection frame 15 .

[0046] like Figure 1 and Figure 2 As shown, a plurality of supporting legs 2 are fixedly provided at the bottom end of the mixing box 1.

[0047] A plurality of supporting legs 2 can form support for the mixing box 1 .

[0048] The above embodiments should not limit the present invention in any way, and any technical solutions obtained by equivalent replacement or equivalent conversion fall within the protection scope of the present invention.

Claims

1. A new type of silicon-carbon negative electrode material production device, characterized by: It includes a mixing box, a stirring component and a liquid spraying component; The mixing box is fixedly provided with a feed pipe, a discharge pipe and a protective frame, and is provided with a liquid spray port. The discharge pipe is fixedly provided with a discharge valve, the liquid spray port is located on the inner side of the protective frame, a protective trough body is slidably provided on the protective frame, the liquid spray assembly is connected to the protective trough body, and the stirring assembly is connected to the mixing box.

2. A novel silicon-carbon negative electrode material production device according to claim 1, characterized in that: The liquid spraying assembly includes an electric push rod, a connecting frame, a lifting plate, a support rod, a nozzle and a lifting tube. The electric push rod and the support rod are fixedly connected to the protective trough body, the lifting plate is fixedly connected to the lifting tube and is slidably connected to the support rod, the connecting frame is fixedly connected to the free end of the electric push rod and the lifting plate, the lifting tube is slidably connected to the protective trough body, and the bottom end extends into the liquid spraying port, and the nozzle is fixedly connected to the bottom end of the lifting tube.

3. The novel silicon-carbon negative electrode material production device according to claim 2, characterized in that: A mixing tube with closed ends on both sides is fixedly provided on the top of the lifting tube, a plurality of liquid inlet pipes are fixedly provided on the mixing tube, and a liquid inlet valve and a hose are fixedly provided on the liquid inlet pipe.

4. The novel silicon-carbon negative electrode material production device according to claim 1, characterized in that: The stirring assembly includes a stirring motor and a stirring shaft. A mounting plate is fixedly provided on the mixing box. The stirring motor is fixedly connected to the mounting plate. One end of the stirring shaft is rotatably connected to the mixing box, and the other end is fixedly connected to the motor shaft of the stirring motor. A plurality of stirring rods are fixedly provided on the stirring shaft.

5. The novel silicon-carbon negative electrode material production device according to claim 1, characterized in that: The mixing box is provided with a moving component, and the moving component is connected to the protection tank body.

6. The novel silicon-carbon negative electrode material production device according to claim 5, characterized in that: The moving assembly includes a moving seat, a moving block, a placement plate, a moving motor, a moving threaded rod and a guide rod. The moving seat is fixedly connected to the mixing box, the placement plate is fixedly connected to the moving seat and the moving motor, one end of the moving threaded rod is rotatably connected to the moving seat, and the other end is fixedly connected to the motor shaft of the moving motor, the guide rod is fixedly connected to the moving seat, the moving block is threadedly connected to the moving threaded rod and slidably connected to the guide rod, and the protective trough is fixedly connected to the moving block.

7. The novel silicon-carbon negative electrode material production device according to claim 2, characterized in that: It also includes a limiting plate, which is fixedly connected to the top end of the support rod.

8. The novel silicon-carbon negative electrode material production device according to claim 2, characterized in that: A baffle is fixedly arranged in the protection tank body.

9. The novel silicon-carbon negative electrode material production device according to claim 8, characterized in that: There are two baffles, and the lifting pipe is located between the two baffles.

10. The novel silicon-carbon negative electrode material production device according to claim 1, characterized in that: A plurality of supporting legs are fixedly provided at the bottom end of the mixing box.