Artificial graphite negative electrode material coating device

Abstract

The utility model discloses an artificial graphite cathode material coating device, which relates to the field of graphite coating devices and comprises a coating tank and a gas stirring and mixing pipe fixed at the top end of the coating tank, a guide plate connected with the gas stirring and mixing pipe is fixed on the bottom wall of the coating tank, and a pressure relief pipe is fixedly mounted at the top end of the outer wall of the coating tank. A first gas outlet hole and a second gas outlet hole are formed in the outer wall of the flow guide plate, a water inlet pipe is installed on the side wall of the gas stirring and mixing pipe, electromagnetic valves are installed on the gas stirring and mixing pipe and the water inlet pipe, and an elastic pressure relief mechanism is embedded in the pressure relief pipe. The water inlet pipe on the side wall of the gas mixing and stirring pipe is used for enabling gas in the gas mixing and stirring pipe to blow out residual water stains in the flow guide plate after flushing, so that the water stains in the flushed pipeline are conveniently blown out and air-dried, and the condition that the residual water stains in the pipeline cause the graphene to be humid is avoided.

Description

Technical Field

[0001] This utility model relates to the field of graphite coating devices, specifically a coating device for artificial graphite anode materials. Background Technology

[0002] A graphite anode material coating device is a piece of equipment used to coat the surface of graphite anode materials. The purpose is to improve the electrochemical performance of these materials and enhance their application in batteries. Solid-phase coating devices coat the surface of graphite with a layer of solid material using physical or chemical methods. Common coating materials include amorphous carbon, metals, and their oxides.

[0003] Patent application number 202420666694.1 discloses a coating modification device for graphite anode materials, including a coating cylinder. The lower end of the coating cylinder is provided with a discharge port. A support is fixedly installed on the outer side of the coating cylinder. Multiple support legs are evenly spaced at the lower end of the support. Multiple reinforcing plates are evenly spaced and fixedly connected between the support and the coating cylinder. A drive assembly for driving a hollow rod to rotate is provided on the outer side of the coating cylinder. A rotatable hollow rod is provided through the upper end of the coating cylinder. A support plate for supporting the rotation of the hollow rod is fixedly installed on the inner side of the coating cylinder. A water injection pipe is rotatably connected to the inner side of the upper end of the hollow rod. Multiple water spray pipes are evenly spaced on the outer side of the hollow rod.

[0004] The above technical solution uses hollow rods and water spray pipes to rinse the inner wall of the coating cylinder. However, water will remain in the hollow rods and water spray pipes after rinsing, which will cause the graphite material to become wet and sticky during the coating process of graphite anode material. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide a coating device for artificial graphite anode material, so as to solve the technical problem that the graphite material becomes wet and sticky during the coating process because water will remain in the hollow rod and water spray pipe after rinsing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a coating device for artificial graphite negative electrode material, comprising a coating tank and a gas stirring and mixing pipe fixed to the top of the coating tank, wherein a guide plate connected to the gas stirring and mixing pipe is fixed to the bottom wall of the coating tank, and a pressure relief pipe is fixedly installed at the top of the outer wall of the coating tank, wherein a first air outlet and a second air outlet are respectively opened on the outer wall of the guide plate, a water inlet pipe is installed on the side wall of the gas stirring and mixing pipe, and both the gas stirring and mixing pipe and the water inlet pipe are equipped with solenoid valves, and an elastic pressure relief mechanism is embedded in the pressure relief pipe.

[0007] The present invention is further provided that supports are fixedly installed on both sides of the bottom wall of the coating tank, and a sealing door is provided on the side wall of the coating tank.

[0008] The present invention is further configured such that a rotating frame is hinged to the outer wall of the covered tank, and a connecting rod fixed to the rotating frame is installed at the center of the side wall of the sealing door.

[0009] The present invention is further configured such that a drainage hole is provided at the center of the bottom wall of the coating tank, and a dust blocking mesh is embedded in both the first and second air outlets.

[0010] The present invention is further configured such that the elastic pressure relief mechanism includes a spring and a piston embedded in the pressure relief pipe, and a breathable filter membrane is fixedly installed on the bottom wall of the pressure relief pipe.

[0011] The present invention is further configured such that the inner wall of the pressure relief pipe is provided with a protrusion that abuts against the piston, and the piston is tightly connected to the inner wall of the pressure relief pipe.

[0012] The present invention is further configured such that the outer wall of the pressure relief pipe is provided with exhaust holes in a ring array, and the piston is disposed below the exhaust holes.

[0013] In summary, this utility model has the following beneficial effects: By fixing a gas mixing and stirring tube at the top of the coating tank, and using a water inlet pipe on the side wall of the gas mixing and stirring tube to allow water to flow out from the first and second air outlets on the guide plate to rinse the inner wall of the coating tank, and after rinsing, the gas in the gas mixing and stirring tube blows out the residual water stains in the guide plate. The blown-out water stains are discharged along the guide drain hole and one side of the sealing door. After air drying, graphene and coating materials are added into the coating tank, and the gas is discharged from the first and second air outlets, causing the powdered graphene and coating materials to float and mix. This facilitates the blowing out and drying of water stains in the pipes after rinsing, avoiding the situation where residual water stains in the pipes cause the graphene to become damp. Furthermore, by fixing a pressure relief pipe on the outer wall of the coating tank, when the gas mixes the graphene, air passes through the breathable filter membrane and squeezes the piston upwards, thereby allowing excess air in the coating tank to be discharged from the exhaust port, preventing excessive pressure in the coating tank during gas mixing and heat treatment. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0017] Figure 4 For the present utility model Figure 2 Enlarged schematic diagram of the structure at point B.

[0018] In the diagram: 1. Coating tank; 2. Water inlet pipe; 3. Gas stirring and mixing pipe; 4. Pressure relief pipe; 5. Rotating frame; 6. Sealing door; 7. Support; 8. Connecting rod; 9. Guide plate; 10. Solenoid valve; 11. Exhaust port; 12. Piston; 13. Breathable filter membrane; 14. Spring; 15. Drainage hole; 16. First exhaust port; 17. Dust barrier net; 18. Second exhaust port. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] A device for coating artificial graphite anode material, such as Figure 1-4 As shown, the device includes a coating tank 1 and a gas stirring and mixing pipe 3 fixed to the top of the coating tank 1. A guide plate 9 connected to the gas stirring and mixing pipe 3 is fixed to the bottom wall of the coating tank 1, and a pressure relief pipe 4 is fixedly installed on the top of the outer wall of the coating tank 1. The outer wall of the guide plate 9 is provided with a first air outlet 16 and a second air outlet 18. A water inlet pipe 2 is installed on the side wall of the gas stirring and mixing pipe 3, and a solenoid valve 10 is installed on both the gas stirring and mixing pipe 3 and the water inlet pipe 2. An elastic pressure relief mechanism is embedded in the pressure relief pipe 4.

[0021] Supports 7 are fixedly installed on both sides of the bottom wall of the coating tank 1, and a sealing door 6 is provided on the side wall of the coating tank 1. A rotating frame 5 is hinged to the outer wall of the coating tank 1. A connecting rod 8 fixed to the rotating frame 5 is installed at the center of the side wall of the sealing door 6. A guide drain hole 15 is opened at the center of the bottom wall of the coating tank 1. Dust blocking nets 17 are embedded and fixed in both the first air outlet 16 and the second air outlet 18. The water inlet pipe 2 on the side wall of the gas mixing and stirring pipe allows water to flow out from the first air outlet 16 and the second air outlet 18 on the guide plate 9 to rinse the inner wall of the coating tank 1, and after rinsing... The gas in the gas mixing and stirring tube blows out the water stains remaining in the guide plate 9. The blown-out water stains are discharged along the drain hole 15 and one side of the sealing door 6. After drying, the graphene and coating material are put into the coating tank 1. The gas is discharged from the first vent hole 16 and the second vent hole 18, causing the powdered graphene and coating material to float and mix. The coating tank 1 is also equipped with auxiliary equipment for graphene coating processing, such as heating equipment. The above equipment is existing technology and will not be described in detail here. At the same time, a gas input pump and a water pump are respectively installed above the water inlet pipe 2 and the gas mixing and stirring pipe 3.

[0022] Furthermore, the elastic pressure relief mechanism includes a spring 14 and a piston 12 embedded in the pressure relief pipe 4. A breathable filter membrane 13 is fixedly installed on the bottom wall of the pressure relief pipe 4. A protrusion that abuts against the piston 12 is provided on the inner wall of the pressure relief pipe 4. The piston 12 is tightly connected to the inner wall of the pressure relief pipe 4. The outer wall of the pressure relief pipe 4 has exhaust holes 11 arranged in a ring array. The piston 12 is located below the exhaust holes 11. When the gas is mixed with graphene, the air passes through the breathable filter membrane 13 and squeezes the piston 12 to move upward, thereby causing excess air in the coating tank 1 to be discharged from the exhaust holes 11, thus avoiding excessive pressure in the coating tank 1 during gas mixing and heating processes.

[0023] The working principle of this invention is as follows: When cleaning the coating tank 1, the solenoid valve 10 on the gas mixing pipe 3 is closed, and the solenoid valve 10 on the water inlet pipe 2 is opened. The water inlet pipe 2 on the side wall of the gas mixing pipe allows water to flow out from the first air outlet 16 and the second air outlet 18 on the guide plate 9 to rinse the inner wall of the coating tank 1. After rinsing, the gas in the gas mixing pipe blows out the water stains remaining in the guide plate 9. The blown-out water stains are discharged along the guide drain hole 15 and one side of the sealing door 6. After air drying, the graphene and coating... The coating material is put into the coating tank 1, and the gas is discharged from the first vent 16 and the second vent 18, so that the powdered graphene and the coating material float and mix. The water stains in the pipeline after rinsing are blown out and dried, avoiding the situation where the graphene is damp due to residual water stains in the pipeline. When the gas mixes the graphene, the air passes through the breathable filter membrane 13 and squeezes the piston 12 to move upward, so that the excess air in the coating tank 1 is discharged from the exhaust port 11, avoiding the situation where the pressure in the coating tank 1 is too high during the gas mixing and heating process.

[0024] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A coating device for artificial graphite anode material, comprising a coating tank (1) and a gas stirring and mixing tube (3) fixed to the top of the coating tank (1), characterized in that: The bottom wall of the coating tank (1) is fixed with a guide plate (9) connected to the gas stirring and mixing pipe (3), and a pressure relief pipe (4) is fixedly installed on the top of the outer wall of the coating tank (1). The outer wall of the guide plate (9) is respectively provided with a first air outlet (16) and a second air outlet (18). A water inlet pipe (2) is installed on the side wall of the gas stirring and mixing pipe (3), and a solenoid valve (10) is installed on both the gas stirring and mixing pipe (3) and the water inlet pipe (2). An elastic pressure relief mechanism is embedded in the pressure relief pipe (4).

2. The artificial graphite anode material coating device according to claim 1, characterized in that: The bottom wall of the coating tank (1) is fixedly installed with supports (7) on both sides, and the side wall of the coating tank (1) is provided with a sealing door (6).

3. The artificial graphite anode material coating device according to claim 2, characterized in that: The outer wall of the coating tank (1) is hinged with a rotating frame (5), and a connecting rod (8) fixed to the rotating frame (5) is installed at the center of the side wall of the sealing door (6).

4. The artificial graphite anode material coating device according to claim 1, characterized in that: The bottom wall of the coating tank (1) is provided with a drainage hole (15), and dust blocking mesh (17) is embedded in both the first air outlet (16) and the second air outlet (18).

5. The artificial graphite anode material coating device according to claim 1, characterized in that: The elastic pressure relief mechanism includes a spring (14) and a piston (12) embedded in the pressure relief pipe (4), and a breathable filter membrane (13) is fixedly installed on the bottom wall of the pressure relief pipe (4).

6. The artificial graphite anode material coating device according to claim 5, characterized in that: The inner wall of the pressure relief pipe (4) is provided with a protrusion that abuts against the piston (12), and the piston (12) is tightly connected to the inner wall of the pressure relief pipe (4).

7. The artificial graphite anode material coating device according to claim 6, characterized in that: The outer wall of the pressure relief pipe (4) is provided with exhaust holes (11) in a ring array, and the piston (12) is located below the exhaust holes (11).

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