Diversion and moisture removal mechanism for graphite cathode material

Abstract

The invention discloses a graphite negative electrode material flow guide and moisture removal mechanism which comprises a drying bin body, a rotating plate, an exhaust pipe, an end rotating cover, a power motor and an exhaust pipe. A plurality of exhaust pipes are distributed in the graphite negative electrode material, the exhaust pipes are communicated with external airflow, moisture discharge of the graphite negative electrode material can be improved, the rotating plate, the exhaust pipes and the end rotating cover are driven by the power motor to synchronously rotate, and therefore the multiple exhaust pipes can uniformly move in the graphite negative electrode material, and the moisture discharge rate of the graphite negative electrode material is increased. Meanwhile, an exhaust pipe is mounted on a power cavity and conveys airflow to an airflow cavity of a rotating plate, the airflow is conveyed to a plurality of exhaust pipes through the airflow cavity, and rapid dehumidification can be performed through dehumidification holes of the exhaust pipes, so that the graphite negative electrode material is fed into a drying cavity to be stacked and stored; the inside of the graphite negative electrode material can be effectively prevented from being affected with damp, and the structural design is ingenious.

Description

Technical Field

[0001] The present invention belongs to the technical field of graphite anode material processing, and particularly relates to a diversion and moisture discharge mechanism for graphite anode materials. Background Art

[0002] Due to advantages such as high electronic conductivity, large lithium ion diffusion coefficient, small volume change before and after lithium intercalation in the layered structure, high lithium intercalation capacity, and low lithium intercalation potential, graphite has become the mainstream commercial anode material for lithium ion batteries currently; graphite powder is generally used as the anode material of the battery. Since graphite powder is prone to absorb moisture in the air during the stacking process, resulting in the graphite powder getting damp, it needs to be dried before using the graphite powder. Currently, drying generally involves feeding the graphite anode material into a dryer. However, the internal drying effect of the stacked graphite anode material is poor, the drying cycle is long, and the efficiency is low. Therefore, it is necessary to improve the drying efficiency and uniformity. For this reason, it is necessary to upgrade and transform the structure, improve the air permeability of the storage of graphite anode materials, and improve the efficiency of rapid moisture discharge. Summary of the Invention

[0003] Aiming at the deficiencies of the above-mentioned prior art, the problem solved by the present invention is: to provide a diversion and moisture discharge mechanism for graphite anode materials that can quickly ventilate and discharge moisture and is flexible to use.

[0004] To solve the above problems, the technical solution adopted by the present invention is as follows: A diversion and moisture discharge mechanism for graphite anode materials includes a drying chamber body, a rotating plate, an exhaust pipe, an end rotating cover, a power motor, and an air extraction pipe; the drying chamber body is distributed in a horizontal structure; a rotating plate is rotatably installed inside the drying chamber body; the rotating plate divides the drying chamber body into a drying cavity and a power cavity; an air flow cavity is provided inside the rotating plate; a plurality of exhaust pipes are uniformly installed on one side of the rotating plate from top to bottom, and the exhaust pipes are communicated with the air flow cavity, and a plurality of exhaust pipes are located above the drying cavity; an end rotating cover is rotatably installed at the outer end of the drying cavity, and the outer ends of the plurality of exhaust pipes are fixedly connected to the end rotating cover through the end rotating cover, and the outer ends of the exhaust pipes extend to the outside of the end rotating cover, and the outer ends of the exhaust pipes are open; a plurality of moisture discharge holes are uniformly opened around the exhaust pipes; the power motor is installed in the power cavity; the power motor drives the rotating plate, the exhaust pipe, and the end rotating cover to rotate synchronously; the air extraction pipe is installed on the power cavity, and the air extraction pipe conveys air to the air flow cavity of the rotating plate, and the air flows through the air flow cavity to the plurality of exhaust pipes.

[0005] Furthermore, it further includes a transmission component; the transmission component includes a rotating cylinder, an annular sprocket, a power sprocket, and a transmission chain; a rotating cylinder is installed in the middle of the other side of the rotating plate; an annular sprocket is installed on the rotating cylinder; the end of the power motor is connected to the power sprocket through a rotating shaft; a transmission chain is connected between the power sprocket and the annular sprocket.

[0006] Furthermore, a ventilation disc is fixedly installed in the power cavity. There is an internal cavity in the ventilation disc, and the rotating cylinder is rotationally and sealingly connected to the ventilation disc; the inner end of the air extraction pipe is fixedly connected to the lower side of the ventilation disc.

[0007] Furthermore, a suction pump and a filter element are provided on the air extraction pipe.

[0008] Furthermore, annular clamping protrusions are provided around the rotating plate; annular clamping grooves are provided vertically and horizontally around the inner part of the drying bin body; the annular clamping protrusions are rotationally clamped on the annular clamping grooves.

[0009] Furthermore, the periphery of the end rotating cover is rotationally clamped to the outer end of the drying cavity through a snap ring.

[0010] Furthermore, a feed hopper is provided in the middle of the upper end of the drying cavity; a discharge hopper is provided in the middle of the lower end of the drying cavity; an opening and closing valve is provided on the discharge hopper; the discharge hopper has a tapered structure with a large upper part and a small lower part.

[0011] Furthermore, a dense mesh cover is sleeved on the outer periphery of the exhaust pipe.

[0012] The beneficial effects of the present invention are as follows: 1. In the present invention, the graphite anode material is sent into the drying cavity. In this way, multiple exhaust pipes will be distributed inside the graphite anode material. The exhaust pipes are communicated with the external air flow, which can improve the moisture discharge of the graphite anode material. In the present invention, the rotating plate, the exhaust pipes, and the end rotating cover are driven to rotate synchronously by a power motor. In this way, the multiple exhaust pipes can move uniformly inside the graphite anode material, improving the uniformity of ventilation and moisture discharge. At the same time, the air extraction pipe is installed on the power cavity, and the air extraction pipe conveys air flow to the air flow cavity of the rotating plate. The air flow conveys air flow to the multiple exhaust pipes through the air flow cavity. When the air flow is conveyed inside the exhaust pipe, rapid moisture discharge can be carried out through the moisture discharge holes of the exhaust pipe. In this way, the graphite anode material is sent into the drying cavity for stacking and storage, and the moisture is discharged regularly through the air flow. In this way, the internal moisture absorption of the graphite anode material can be effectively avoided, and the structural design is ingenious.

[0013] 2. The present invention combines the circulation and discharge of moisture of the air flow with rotation, greatly improving the uniformity and efficiency of moisture discharge of the entire structure. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the present invention.

[0015] Figure 2 is a schematic structural diagram inside the power cavity of the present invention.

[0016] Figure 3 is a schematic structural diagram inside the drying cavity of the present invention.

[0017] Figure 4 This is a schematic cross-sectional structure diagram of the exhaust pipe and the dense mesh cover of the present invention. Detailed implementation manners

[0018] The following further elaborates on the content of the present invention in conjunction with the accompanying drawings.

[0019] As Figures 1 to 4 shown, a moisture drainage mechanism for a graphite anode material diversion includes a drying bin body 1, a rotating plate 2, an exhaust pipe 3, an end rotating cover 4, a power motor 5, and an air extraction pipe 6; the drying bin body 1 is horizontally distributed; a rotating plate 2 is rotatably installed inside the drying bin body 1; the rotating plate 2 divides the drying bin body 1 into a drying cavity 11 and a power cavity 12; an air flow cavity 21 is provided inside the rotating plate 2; a plurality of exhaust pipes 3 are uniformly installed on one side of the rotating plate 2 from top to bottom, and the exhaust pipes 3 are communicated with the air flow cavity 21, and the plurality of exhaust pipes 3 are located above the drying cavity 11; an end rotating cover 4 is rotatably installed at the outer end of the drying cavity 11, the outer ends of the plurality of exhaust pipes 3 are fixedly connected through the end rotating cover 4, the outer ends of the exhaust pipes 3 extend to the outside of the end rotating cover 4, and the outer ends of the exhaust pipes 3 are open; a plurality of moisture drainage holes 31 are uniformly opened around the exhaust pipe 3; the power motor 5 is installed in the power cavity 12; the power motor 5 drives the rotating plate 2, the exhaust pipe 3, and the end rotating cover 4 to rotate synchronously; the air extraction pipe 6 is installed on the power cavity 12, and the air extraction pipe 6 conveys air flow to the air flow cavity 21 of the rotating plate 2, and the air flow is conveyed to the plurality of exhaust pipes 3 through the air flow cavity 21.

[0020] As Figures 1 to 4 shown, in order for the power motor 5 to drive the rotating plate 2 to rotate, further, a transmission component 7 is further included; the transmission component 7 includes a rotating cylinder 71, an annular sprocket 72, a power sprocket 73, and a transmission chain 74; a rotating cylinder 71 is installed in the middle of the other side of the rotating plate 2; an annular sprocket 72 is installed on the rotating cylinder 71; the end of the power motor 5 is connected to the power sprocket 73 through a rotating shaft 51; a transmission chain 74 is connected between the power sprocket 73 and the annular sprocket 72.

[0021] As Figures 1 to 4 shown, in order to facilitate the input of air flow to the rotating cylinder 71, further, a ventilation disk 61 is fixedly installed in the power cavity 12, the ventilation disk 61 has an internal cavity, and the rotating cylinder 71 is rotationally and sealingly connected to the ventilation disk 61; the inner end of the air extraction pipe 6 is fixedly connected to the lower side of the ventilation disk 61. Further, a suction pump and a filter element are provided on the air extraction pipe 6.

[0022] As Figures 1 to 4As shown in the figure, in order to improve the rotational stability of the rotating plate 2, further, an annular clamping protrusion 22 is provided around the rotating plate 2; annular clamping grooves 13 are provided vertically on the inner periphery of the drying chamber body 1; the annular clamping protrusion 22 is rotationally clamped on the annular clamping groove 13. In order to ensure the rotational stability of the end rotating cover 4, further, the periphery of the end rotating cover 4 is rotationally clamped to the outer end of the drying cavity 11 through a snap ring 41. In order to facilitate feeding and discharging, further, a feeding hopper 14 is provided in the middle of the upper end of the drying cavity 11; a discharging hopper 15 is provided in the middle of the lower end of the drying cavity 11; an opening and closing valve 151 is provided on the discharging hopper 15; the discharging hopper 15 has a conical structure with a large upper part and a small lower part. In order to prevent raw materials from entering the exhaust pipe 3, further, a dense mesh cover 32 is sleeved on the outer periphery of the exhaust pipe 3.

[0023] In the present invention, the graphite negative electrode material is sent into the drying cavity 11. In this way, a plurality of exhaust pipes 3 will be distributed inside the graphite negative electrode material. The exhaust pipes 3 are communicated with the external air flow, which can improve the discharge of moisture from the graphite negative electrode material. The present invention drives the rotating plate 2, the exhaust pipes 3, and the end rotating cover 4 to rotate synchronously through the power motor 5. In this way, the plurality of exhaust pipes 3 can move uniformly inside the graphite negative electrode material, improving the uniformity of ventilation and moisture discharge. At the same time, the suction pipe 6 is installed on the power cavity 12, and the suction pipe 6 conveys air flow to the air flow cavity 21 of the rotating plate 2. The air flow conveys air flow to the plurality of exhaust pipes 3 through the air flow cavity 21. When the air flow is conveyed inside the exhaust pipe 3, moisture can be quickly discharged through the moisture discharge holes 31 of the exhaust pipe 3. In this way, the graphite negative electrode material is sent into the drying cavity 11 for stacking and storage, and the moisture is discharged regularly through the air flow. In this way, the graphite negative electrode material can be effectively prevented from getting damp inside, and the structural design is ingenious.

[0024] The present invention combines the circulation and discharge of moisture of the air flow with rotation, greatly improving the uniformity and efficiency of moisture discharge of the entire structure.

[0025] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A graphite negative electrode material guide and moisture removal mechanism, characterized in that: The invention comprises a drying bin body, a rotating plate, an exhaust pipe, an end rotating cover, a power motor and an exhaust pipe; the drying bin body is distributed in a horizontal structure; a rotating plate is rotatably installed inside the drying bin body; the rotating plate divides the drying bin body into a drying cavity and a power cavity; an air flow cavity is arranged inside the rotating plate; a plurality of exhaust pipes are evenly installed from top to bottom on one side of the rotating plate, the exhaust pipes are connected with the air flow cavity, and a plurality of exhaust pipes are located on the drying cavity; an end rotating cover is rotatably installed at the outer end of the drying cavity, the outer ends of the plurality of exhaust pipes are connected and fixed on the end rotating cover, the outer ends of the exhaust pipes extend to the outside of the end rotating cover, and the outer ends of the exhaust pipes are open; a plurality of moisture removal holes are evenly arranged around the exhaust pipe; the power motor is installed in the power cavity; the power motor drives the rotating plate, the exhaust pipe and the end rotating cover to rotate synchronously; the exhaust pipe is installed on the power cavity, the exhaust pipe conveys air flow to the air flow cavity of the rotating plate, and the air flow conveys air flow to the plurality of exhaust pipes through the air flow cavity.

2. The graphite negative electrode material guide and moisture removal mechanism according to claim 1, characterized in that: It also includes a transmission assembly; the transmission assembly includes a rotating cylinder, an annular sprocket, a power sprocket, and a transmission chain; a rotating cylinder is installed in the middle of the other side of the rotating plate; an annular sprocket is installed on the rotating cylinder; the end of the power motor is connected to the power sprocket through a rotating shaft; and a transmission chain is connected between the power sprocket and the annular sprocket.

3. The graphite negative electrode material guide and moisture removal mechanism according to claim 2, characterized in that: A vent plate is fixedly installed in the power cavity, and the cavity inside the vent plate, the rotating cylinder is rotatably sealed and connected to the vent plate; the inner end of the exhaust pipe is fixedly connected to the lower side of the vent plate.

4. The graphite negative electrode material guide and moisture removal mechanism according to claim 1, characterized in that: The air extraction pipe is provided with a suction pump and a filter element.

5. The graphite negative electrode material guide and moisture removal mechanism according to claim 1, characterized in that: Annular clamping protrusions are arranged around the rotating plate; annular clamping grooves are arranged around the inner periphery of the drying bin body; and the annular clamping protrusions are rotatably clamped on the annular clamping grooves.

6. The graphite negative electrode material guide and moisture removal mechanism according to claim 1, characterized in that: The periphery of the end rotating cover is rotatably clamped to the outer end of the drying cavity through a clamping ring.

7. The graphite negative electrode material guide and moisture removal mechanism according to claim 1, characterized in that: A feeding hopper is arranged in the middle of the upper end of the drying cavity; a discharging hopper is arranged in the middle of the lower end of the drying cavity; an opening and closing valve is arranged on the discharging hopper; and the discharging hopper is in a conical structure with a larger upper portion and a smaller lower portion.

8. The graphite negative electrode material guide and moisture removal mechanism according to claim 1, characterized in that: The outer sides of the exhaust pipe are sleeved with a dense mesh cover.

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