Wet washing and drying device for positive electrode material

Abstract

The utility model discloses a wet washing and drying device for a positive electrode material, and relates to the related technical field of battery production. The device comprises a drying machine, a conveying bin, a scattering bin and a feeding bin, the top of the drying machine is fixedly communicated with a conveying hopper, the top of the conveying hopper is fixedly communicated with the conveying bin, the top of the conveying bin is fixedly provided with a mounting seat, the top of the mounting seat is fixedly communicated with the scattering bin, and the top of the scattering bin is fixedly communicated with the feeding bin. And the top end of the feeding bin fixedly communicates with an exhaust pipe. The drying machine, the conveying bin, the scattering bin and the feeding bin are arranged, so that the problems that the drying efficiency is easily influenced due to caking when the battery positive electrode material is directly fed into the drying device to be dried after being washed, and the drying efficiency is influenced due to low temperature when the battery positive electrode material is input into the drying device are solved; the drying device has the advantages that the battery positive electrode material is scattered and enters the drying device after being washed, drying is more sufficient, heating can be achieved in the conveying process, the material temperature is higher, and the drying efficiency is higher.

Description

Technical Field

[0001] This utility model belongs to the field of battery production technology, and in particular relates to a wet washing and drying device for positive electrode materials. Background Technology

[0002] Wet washing of battery cathode materials is a process that uses liquid solvents to clean the cathode materials, mainly used to remove impurities, contaminants, or other unwanted substances from the surface of the cathode materials. Water washing is the most common method. Water washing involves immersing the cathode material in water and using methods such as stirring and ultrasonication to dissolve or disperse impurities in the water. The solid material is then separated by filtration or centrifugation. Regardless of the wet washing method, a certain amount of water will remain in the cathode material after filtration, requiring drying using a drying device. However, this method still has the following drawbacks in practical use:

[0003] After being washed with water, the positive electrode material of the battery is directly filtered out by a pressure filter and then transported to a drying device for direct drying. During the drying process, the material agglomerates quite obviously, and the time required for complete drying is relatively long.

[0004] Secondly, the temperature of the battery cathode material directly fed into the dryer is low during the drying process. It needs to be heated first and then dried, which takes a long time and results in low drying efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a wet washing and drying device for positive electrode materials. By setting up a dryer, a conveying chamber, a dispersing chamber, and a feeding chamber, it solves the problems that the drying efficiency is easily affected by clumping when the positive electrode materials are directly sent into the drying device after washing, and that the drying efficiency is also affected by the low temperature of the positive electrode materials when they are input into the drying device.

[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 wet washing and drying device for positive electrode materials, comprising a dryer, a conveying chamber, a dispersing chamber, and a feeding chamber. A conveying hopper is fixedly connected to the top of the dryer, and a conveying chamber is fixedly connected to the top of the conveying hopper. A mounting base is fixedly connected to the top of the conveying chamber, and a dispersing chamber is fixedly connected to the top of the mounting base. A feeding chamber is fixedly connected to the top of the dispersing chamber, and an exhaust pipe is fixedly connected to the top of the feeding chamber. During operation, battery positive electrode materials are input through the feeding chamber and descend into the dispersing chamber, where they are dispersed. After being dispersed, the materials are further conveyed into the conveying chamber and then transported to the dryer by a conveying hopper at the bottom of the conveying chamber for drying.

[0008] Furthermore, the top of the dryer is provided with a connecting hole, which is connected to the bottom of the conveying hopper. When the dryer is working, the connecting hole and the conveying hopper remain connected.

[0009] Furthermore, a support frame is fixed to the outside of the conveying chamber, the top of the support frame is fixed to the top of the dryer, the conveying hopper is set inside the support frame, an air inlet pipe is fixedly connected to one side of the conveying chamber, a heating component is fixed inside the air inlet pipe, the support frame outside the conveying chamber is supported on the dryer, and the air inlet pipe delivers high-pressure air into the conveying chamber.

[0010] Furthermore, a drive motor is provided on one side of the dispersing chamber, the bottom of the drive motor is fixed to the top of the dispersing chamber, and a rotating shaft is fixed to the output end of the drive motor. The operation of the drive motor controls the rotation of the rotating shaft.

[0011] Furthermore, the rotating shaft passes through the lower inner part of the dispersing chamber, and blades are evenly fixed around the rotating shaft in the lower inner part of the dispersing chamber. When the rotating shaft rotates, the blades rotate together with the rotating shaft to disperse the battery positive electrode material that enters the dispersing chamber.

[0012] Furthermore, a feed pipe is fixedly connected to the top center of the feed hopper, and an exhaust pipe is located on one side of the feed pipe. The feed pipe at the top of the feed hopper transports the filtered battery cathode material to the dryer.

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

[0014] This invention solves the problem that direct feeding of washed battery cathode materials into the drying device can easily lead to clumping, affecting drying efficiency. By incorporating a dryer, conveying chamber, dispersing chamber, and feeding chamber, the battery cathode materials in the feeding chamber descend into the dispersing chamber. The drive motor is activated, causing the rotating shaft to rotate. During this rotation, the battery cathode materials in the dispersing chamber are dispersed and fall into the conveying chamber. After being mixed into the conveying chamber, the materials descend again into the conveying hopper, where they are concentrated before falling into the dryer for further drying. This ensures that the dried battery cathode materials are thoroughly dispersed, guaranteeing the drying effect. This allows the washed battery cathode materials to be fully dispersed before entering the drying device for drying.

[0015] This invention solves the problem of low temperature affecting drying efficiency of battery positive electrode material entering the drying device by setting up a dryer, conveying chamber, dispersing chamber, and feeding chamber. During the dispersing process of battery positive electrode material in the dispersing chamber, high-pressure air is delivered to the air inlet pipe and heated by the heating component inside the air inlet pipe. The air is then delivered to the conveying chamber, where it first heats and dries the dispersed battery positive electrode material. It continues to rise into the dispersing chamber, where it heats and dries the battery positive electrode material. It then rises again into the feeding chamber and is finally delivered to the exhaust device through the exhaust pipe. During the process of hot air passing through the conveying chamber, dispersing chamber, and feeding chamber, the battery positive electrode material in these chambers is heated and dried, resulting in a higher temperature for the battery positive electrode material entering the dryer and higher drying efficiency. 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 wet washing and drying device for positive electrode materials;

[0018] Figure 2 This is a three-dimensional structural diagram of the dryer;

[0019] Figure 3 This is a three-dimensional structural diagram of the conveyor.

[0020] Figure 4 A three-dimensional structural diagram of the bulk storage unit;

[0021] Figure 5 This is a three-dimensional structural diagram of the feed hopper.

[0022] Figure label:

[0023] 1. Dryer; 101. Connecting hole; 2. Conveying bin; 201. Air inlet pipe; 202. Heating component; 203. Conveying hopper; 204. Support frame; 3. Dispersing bin; 301. Drive motor; 302. Rotating shaft; 303. Blades; 304. Mounting base; 4. Feeding bin; 401. Feeding pipe; 402. Exhaust pipe. 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 1-4 This utility model relates to a wet washing and drying device for positive electrode materials, comprising a dryer 1, a conveying chamber 2, a dispersing chamber 3, and a feeding chamber 4. A conveying hopper 203 is fixedly connected to the top of the dryer 1. The dryer 1 dries the positive electrode material that has been dispersed inside. The conveying hopper 203 concentrates and conveys the positive electrode material from the conveying chamber 2 into the dryer 1. The bottom of the dryer 1 is fixed to a vibrating device and driven to vibrate. The top of the conveying hopper 203 is fixedly connected to the conveying chamber 2, which conveys the material from the dispersing chamber 3 into the dryer 4. After the positive electrode material is broken up, it is output. The top of the conveying chamber 2 is fixed with a mounting base 304. The mounting base 304 installs the breaking chamber 3 on the conveying chamber 2. The top of the mounting base 304 is fixedly connected to the breaking chamber 3. After the positive electrode material of the battery enters, it is broken up by the structure inside the breaking chamber 3. The top of the breaking chamber 3 is fixedly connected to the feeding chamber 4. The feeding chamber 4 conveys the material into the breaking chamber 3. The top of the feeding chamber 4 is fixedly connected to the exhaust pipe 402. The top of the exhaust pipe 402 is connected to the exhaust gas treatment system.

[0026] Specifically, the top of the dryer 1 is provided with a connecting hole 101, which is connected to the bottom of the conveying hopper 203. When the dryer 1 is working, the connecting hole 101 is connected to the conveying hopper 203, so that the material is conveyed into the dryer 1.

[0027] Furthermore, a support frame 204 is fixed to the outside of the conveying chamber 2, and the top of the support frame 204 is fixed to the top of the dryer 1. The conveying hopper 203 is set inside the support frame 204. An air inlet pipe 201 is fixedly connected to one side of the conveying chamber 2. A heating component 202 is fixed inside the air inlet pipe 201. The conveying chamber 2 is supported on the dryer 1 by the support frame 204. The end of the air inlet pipe 201 away from the conveying chamber 2 is fixedly connected to a device for conveying high-pressure air. The high-pressure air is delivered into the air inlet pipe 201, and after passing through the heating component 202 inside the air inlet pipe 201, it is heated and then delivered into the conveying chamber 2.

[0028] Furthermore, a drive motor 301 is provided on one side of the dispersing chamber 3. The bottom of the drive motor 301 is fixed to the top of the dispersing chamber 3. A rotating shaft 302 is fixed to the output end of the drive motor 301. When the drive motor 301 is working, it drives the rotating shaft 302 to rotate and perform the dispersing operation of the battery positive electrode material.

[0029] Furthermore, the rotating shaft 302 passes through the lower inner part of the disintegration chamber 3. Blades 303 are evenly fixed on the periphery of the rotating shaft 302 in the lower inner part of the disintegration chamber 3. When the rotating shaft 302 rotates, the blades 303 on its periphery strike the battery positive electrode material that enters the disintegration chamber 3.

[0030] The operation process of this embodiment is as follows: During operation, the battery positive electrode material in the feeding hopper 4 descends into the dispersing hopper 3. The drive motor 301 is started, and the drive motor 301 drives the rotating shaft 302 to rotate. During the rotation of the rotating shaft 302, the battery positive electrode material entering the dispersing hopper 3 is rotated and dispersed, and falls into the conveying hopper 2. After the battery positive electrode material is mixed into the conveying hopper 2, it descends again into the conveying hopper 203. After being concentrated in the conveying hopper 203, it falls into the dryer 1 for drying treatment, so that the battery positive electrode material is fully dispersed during the drying treatment, ensuring the drying effect. Specific Implementation Example 2

[0031] Please see Figure 1 , 3 4, 5. Based on the specific embodiment one, the top center of the feeding hopper 4 is fixedly connected to the feeding pipe 401, and the exhaust pipe 402 is set on one side of the feeding pipe 401. The top of the feeding pipe 401 of the feeding hopper 4 is connected to the output end of the vibrating feeder after being filtered by the upper filter press, so that the battery positive electrode material output by the vibrating feeder is transported into the feeding pipe 401 and then into the feeding hopper 4.

[0032] The operation process of this embodiment is as follows: During operation, when the battery positive electrode material is broken up in the breaking up chamber 3, high-pressure air is delivered to the air inlet pipe 201 and passes through the heating component 202 in the air inlet pipe 201. After the air is heated, it is delivered to the conveying chamber 2. First, the broken up battery positive electrode material in the conveying chamber 2 is heated and dried. Then, it continues to rise into the breaking up chamber 3, where the battery positive electrode material is heated and dried. Then, it rises into the feeding chamber 4 and is finally delivered to the exhaust device through the exhaust pipe 402. During the process of the hot air passing through the conveying chamber 2, breaking up chamber 3, and feeding chamber 4, the battery positive electrode material in the conveying chamber 2, breaking up chamber 3, and feeding chamber 4 is heated and dried, so that the temperature of the battery positive electrode material entering the dryer 1 is higher and the drying efficiency is higher.

[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 wet washing and drying apparatus for positive electrode materials, comprising a dryer (1), a conveying chamber (2), a dispersing chamber (3), and a feeding chamber (4), characterized in that: The top of the dryer (1) is fixedly connected to a conveying hopper (203), the top of the conveying hopper (203) is fixedly connected to a conveying bin (2), the top of the conveying bin (2) is fixedly connected to a mounting base (304), the top of the mounting base (304) is fixedly connected to a dispersing bin (3), the top of the dispersing bin (3) is fixedly connected to a feeding bin (4), and the top of the feeding bin (4) is fixedly connected to an exhaust pipe (402).

2. The wet washing and drying apparatus for positive electrode materials according to claim 1, characterized in that: The top of the dryer (1) is provided with a connecting hole (101), which is connected to the bottom of the conveying bucket (203).

3. The wet washing and drying apparatus for positive electrode materials according to claim 1, characterized in that: A support frame (204) is fixed to the outside of the conveying chamber (2). The top of the support frame (204) is fixed to the top of the dryer (1). The conveying bucket (203) is set inside the support frame (204). An air inlet pipe (201) is fixedly connected to one side of the conveying chamber (2). A heating component (202) is fixed inside the air inlet pipe (201).

4. The wet washing and drying apparatus for positive electrode materials according to claim 1, characterized in that: A drive motor (301) is provided on one side of the dispersing chamber (3). The bottom of the drive motor (301) is fixed to the top of the dispersing chamber (3), and a rotating shaft (302) is fixed to the output end of the drive motor (301).

5. The wet washing and drying apparatus for positive electrode materials according to claim 4, characterized in that: The rotating shaft (302) passes through the lower inner part of the dispersing chamber (3), and blades (303) are evenly fixed around the rotating shaft (302) in the lower inner part of the dispersing chamber (3).

6. The wet washing and drying apparatus for positive electrode materials according to claim 1, characterized in that: The feed hopper (4) has a feed pipe (401) fixedly connected to the top center, and the exhaust pipe (402) is located on one side of the feed pipe (401).

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