Gas crushing fluidized bed device for anode and cathode materials

Abstract

The utility model belongs to the technical field of battery material preparation, and particularly relates to a gas crushing fluidized bed device for positive and negative electrode materials, which comprises a crushing tank, a support is fixedly mounted above the crushing tank, a servo motor is fixedly mounted above the support, an output shaft is fixedly connected to the output end of the servo motor, and the output shaft is fixedly connected to the output end of the servo motor. And upper rotating pieces are distributed on the periphery of the output shaft, the wind direction is downward, two opposite air inlet pipes are connected to one end of the smashing tank in an inserted mode, the air inlet pipes communicate with an arc-shaped plate, and a plurality of opposite sprayers are arranged on the arc-shaped plate. In the aspect of crushing, through the unique airflow and rotating sheet design, materials are fluidized and crushed, the requirements of different particle sizes are met, the stable environment can be maintained through pressure adjustment, equipment failures are avoided, gas flow control can adapt to various materials, the equipment universality is improved, abrasion and impurities are reduced through a tungsten carbide coating, and the production efficiency is improved. And the collector connected with the discharge pipe can effectively treat dust, is environment-friendly and can improve the material recovery rate.

Description

Technical Field

[0001] The utility model relates to the technical field of battery material preparation, in particular to a gas pulverizing fluidized bed device for positive and negative electrode materials. Background Art

[0002] In the field of battery manufacturing, the properties of positive and negative electrode materials are crucial to the quality and performance of the battery. Positive and negative electrode materials usually need to be crushed to a specific particle size to meet the process requirements of battery production.

[0003] Traditional pulverization equipment has numerous shortcomings when processing positive and negative electrode materials. For example, some mechanical pulverization equipment can subject materials to significant mechanical stress during the pulverization process, leading to structural damage and reduced performance. Furthermore, traditional pulverization equipment often struggles to precisely control the particle size, resulting in uneven particle size distribution after pulverization, which negatively impacts battery consistency and stability.

[0004] Furthermore, during the pulverization process, the equipment suffers from significant wear and tear due to friction and collisions between the material and the equipment's inner walls and pulverizing components. This not only increases equipment maintenance costs and replacement frequency, but also creates the risk of impurities from wear and tear being introduced into the material, affecting its purity and quality.

[0005] At the same time, some existing pulverizing equipment lacks precise and flexible pressure control during operation. Under varying process conditions and material properties, internal pressure cannot be adjusted promptly to meet actual requirements. This can lead to unstable equipment operation and even safety hazards. For example, when pulverizing certain special cathode and anode materials, if internal pressure becomes excessive and cannot be relieved promptly, it can cause equipment failure or even explosion.

[0006] In addition, traditional crushing equipment also has defects in dust treatment. If the dust generated during the crushing process cannot be effectively collected, it will not only cause material waste, but also pollute the environment and affect the health of operators. Utility Model Content

[0007] (1) Technical problems solved

[0008] In view of the deficiencies of the prior art, the present invention provides a gas pulverization fluidized bed device for positive and negative electrode materials, which solves the problems raised in the above-mentioned background technology.

[0009] (2) Technical solution

[0010] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0011] A gas pulverizing fluidized bed device for positive and negative electrode materials comprises a pulverizing tank, a bracket is fixedly installed above the pulverizing tank, a servo motor is fixedly installed above the bracket, the output end of the servo motor is fixedly connected to an output shaft, upper rotating plates are distributed around the output shaft, the wind direction is downward, two opposite air inlet pipes are plugged into one end of the pulverizing tank, the air inlet pipes are connected to an arc-shaped plate, a number of opposite nozzles are provided on the arc-shaped plate, the bottom of the pulverizing tank is connected to a discharge pipe, a drive motor is provided at the bottom of the pulverizing tank, the output end of the drive motor is fixedly connected to a reducer, the reducer passes through the pulverizing tank through a shaft to connect to the lower rotating plate inside, the wind direction is upward, and the pulverizing tank is connected to a pressure relief pipe.

[0012] Furthermore, a fixed block is provided on the top of the inner portion of the crushing tank, and the fixed block is in a frustum shape. The output shaft passes through the fixed block and is rotatably connected thereto.

[0013] Furthermore, a pressure regulating valve is provided on the pressure relief pipe, and the speed and pressure of the pressure relief are controlled by adjusting the pressure regulating valve to ensure that a stable and safe pressure environment can be maintained inside the crushing tank under different working conditions and process requirements.

[0014] Furthermore, a gas flow controller is installed on the air inlet pipe to control the gas flow entering the arc plate, and then control the intensity of the air flow ejected from the opposite nozzle, so as to adapt to the crushing of positive and negative electrode materials of different types and particle sizes.

[0015] Furthermore, a wear-resistant coating is provided on the inner wall of the crushing tank, and the wear-resistant coating is specifically a tungsten carbide coating.

[0016] Furthermore, the outlet end of the discharge pipe is connected to a cyclone collector or a bag-type dust collector.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the present invention provides a gas pulverization fluidized bed device for positive and negative electrode materials, which has the following beneficial effects:

[0019] In terms of crushing, this utility model uses a unique airflow and rotating plate design to fluidize and crush materials to meet different particle size requirements. Pressure regulation can maintain a stable environment and avoid equipment failure. Gas flow control can adapt to a variety of materials and improve equipment versatility. Tungsten carbide coating reduces wear and impurities. The collector connected to the discharge pipe can effectively handle dust, which is both environmentally friendly and can improve material recovery rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2This is a schematic diagram of the internal structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the installation structure of the air intake pipe, curved plate and nozzle of the utility model.

[0023] In the figure: 1. Crushing tank; 2. Bracket; 3. Servo motor; 4. Output shaft; 5. Upper rotating plate; 6. Fixed block; 7. Air inlet pipe; 8. Arc plate; 9. Nozzle; 10. Discharge pipe; 11. Drive motor; 12. Reducer; 13. Lower rotating plate; 14. Pressure relief pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example

[0026] like Figure 1-3 As shown, a gas pulverization fluidized bed device for positive and negative electrode materials proposed in one embodiment of the present invention includes a pulverization tank 1, a bracket 2 is fixedly installed above the pulverization tank 1, a servo motor 3 is fixedly installed above the bracket 2, the output end of the servo motor 3 is fixedly connected to an output shaft 4, upper rotating pieces 5 are distributed around the output shaft 4, the wind direction is downward, one end of the pulverization tank 1 is plugged with two opposite air inlet pipes 7, the air inlet pipes 7 are connected to an arc-shaped plate 8, a plurality of opposite nozzles 9 are provided on the arc-shaped plate 8, the bottom of the pulverization tank 1 is connected to a discharge pipe 10, a drive motor 11 is provided at the bottom of the pulverization tank 1, a reducer 12 is fixedly connected to the output end of the drive motor 11, the reducer 12 passes through the pulverization tank 1 through a shaft to connect to the lower rotating piece 13 inside, the wind direction is upward, and the pulverization tank 1 is connected to a pressure relief pipe 14;

[0027] Crushing tank 1: This is the main structure of the entire device, and all other components are connected to it. It provides a closed working space for the crushing and fluidization of positive and negative electrode materials, ensuring that the crushing process is carried out in a relatively stable environment, reducing external factors and preventing material dust leakage, which may cause pollution and material loss.

[0028] Bracket 2: Located above the crushing tank 1, its function is to support the servo motor 3. It needs to have sufficient strength and stability to withstand the weight of the servo motor 3 and the vibration generated during operation, etc., to ensure the stability of the entire device during operation.

[0029] Servo motor 3: As one of the power sources, it drives the upper rotating plate 5 through the output shaft 4. The servo motor 3 has the characteristics of high precision and high response speed. It can accurately control the speed and rotation angle according to process requirements, thereby adjusting the intensity and flow characteristics of the downward airflow generated by the upper rotating plate 5.

[0030] Output shaft 4: Connects the servo motor 3 and the upper rotating plate 5, transmitting the rotational motion of the servo motor 3 to the upper rotating plate 5. It needs to have sufficient strength and rigidity to ensure that it will not bend or break during high-speed rotation, ensuring the stability and reliability of power transmission.

[0031] Upper rotating blades 5 are distributed around the output shaft 4, with the airflow directed downward. During rotation, they generate a downward airflow that interacts with the upward airflow from the lower rotating blades 13, fluidizing the material in the pulverizing tank 1. This increases the chances of collision and friction between material particles, improving pulverization efficiency.

[0032] The fixing block 6 is in the shape of a truncated cone and is located on the top of the crushing tank 1. It provides a support point for the output shaft 4 to rotate, ensuring the stability of the output shaft 4 during rotation, while reducing the impact of the shaking of the output shaft 4 on other components inside the crushing tank 1.

[0033] There are two air inlet pipes 7, which are plugged into one end of the crushing tank 1. They are the passage for the gas to enter the crushing tank 1 and are connected to the curved plate 8 to evenly distribute the gas to the curved plate 8.

[0034] Curved plate 8: Connected to the air inlet pipe 7, its curved design allows for uniform gas distribution within the plate. Several opposing nozzles 9 are provided on the curved plate 8, which create a specific airflow field within the pulverizing tank 1 when the gas is ejected from the nozzles 9, facilitating the pulverization and fluidization of the material.

[0035] Opposing nozzles 9: Located on curved plate 8, multiple opposing nozzles 9 allow airflow to intersect and collide within pulverizing tank 1, creating complex airflow patterns and enhancing the material pulverization effect. By controlling the intensity of the airflow ejected from nozzles 9, controlled by a gas flow controller on inlet pipe 7, the pulverization requirements of different materials can be met.

[0036] Discharge pipe 10: Connected to the bottom of the crushing tank 1, it is the channel for the crushed material to be discharged. It is connected to a cyclone collector or bag dust collector, which can promptly discharge the crushed material from the crushing tank 1 for collection and dust disposal, preventing material accumulation in the crushing tank 1 and affecting the crushing effect.

[0037] Drive motor 11: Located at the bottom of the crushing tank 1, it serves as another power source. It drives the lower rotating plate 13 to rotate through the reducer 12, and works in conjunction with the servo motor 3 and the upper rotating plate 5 to create a fluidized environment in the crushing tank 1.

[0038] Reducer 12: Connects the drive motor 11 and the lower rotating plate 13, reducing the rotational speed and increasing the torque. The reducer 12 adjusts the rotational speed and torque of the lower rotating plate 13 to match the upward airflow generated by the lower rotating plate 13 with the downward airflow generated by the upper rotating plate 5, optimizing the fluidization effect within the pulverizing tank 1.

[0039] The lower rotating blade 13 has an upward wind direction and works in conjunction with the upper rotating blade 5. Its rotation can make the material at the bottom of the crushing tank 1 move upward, interacting with the air flow from top to bottom and the material to promote the fluidization and crushing of the material.

[0040] Pressure relief pipe 14: Connected to the crushing tank 1, it is an important component for regulating the internal pressure of the crushing tank 1. The pressure regulating valve on the pressure relief pipe 14 can accurately control the speed and pressure of pressure relief according to different working conditions and process requirements, ensuring that the internal pressure of the crushing tank 1 is stable within a safe range, and preventing the normal operation of the device and the material crushing effect from being affected by excessive high or low pressure.

[0041] Working principle:

[0042] Material fluidization and air flow grinding

[0043] Gas enters the device through the inlet pipe 7, is regulated by a gas flow controller, and then enters the curved plate 8. It is then ejected from the opposing nozzles 9 on the curved plate 8. Simultaneously, the drive motor 11 drives the reducer 12, rotating the lower rotating plate 13 to generate an upward airflow, while the servo motor 3 rotates the output shaft 4 and the upper rotating plate 5 to generate a downward airflow. The combined action of the upper and lower airflows fluidizes the positive and negative electrode materials within the pulverization tank 1. During the fluidization process, the material particles are impacted by the high-speed airflow and subjected to mutual collision and friction, thereby being pulverized into fine particles.

[0044] Pressure regulation and stable operation

[0045] During the pulverization process, the pressure inside the pulverization tank 1 may fluctuate. When the pressure is too high, the pressure is released through the pressure regulating valve on the pressure relief pipe 14 to control the speed and pressure of the pressure release. This ensures that the pressure environment inside the pulverization tank 1 can maintain a stable and safe environment under different working conditions and process requirements, ensuring the stable operation of the pulverization process and avoiding the impact of excessive pressure on equipment safety and pulverization results.

[0046] Material output and dust treatment

[0047] The crushed material is discharged from a discharge pipe 10 at the bottom of the crushing tank 1. Since the outlet of discharge pipe 10 is connected to a cyclone collector or bag-type dust collector, dust is collected during the discharge process. The cyclone collector separates dust from the material using centrifugal force, while the bag-type dust collector intercepts dust through filtration. This not only collects material, avoiding waste, but also prevents dust from polluting the environment.

[0048] Equipment protection and efficient operation

[0049] Throughout the entire process, the wear-resistant tungsten carbide coating on the inner wall of the crushing tank 1 reduces wear on the tank wall caused by material and airflow, protecting the crushing tank 1 and extending the service life of the equipment. Furthermore, the coordinated operation of various components, such as the stable support of the output shaft 4 by the fixed block 6 and the rational distribution of airflow by the air intake pipe 7 and nozzle 9, ensures the efficient operation of the equipment.

[0050] like Figure 2 As shown, in some embodiments, a truncated cone-shaped fixed block 6 is provided on the top of the pulverizing tank 1. The output shaft 4 extends through the fixed block 6 and is rotatably connected thereto. In a gas pulverizing fluidized bed device, airflow stability is crucial for the fluidization and pulverization efficiency of the material. If the output shaft 4 is shaky or unstable, the airflow will be turbulent, affecting the interaction between the material and the airflow and thus reducing the pulverization effect. The presence of the fixed block 6 helps maintain airflow stability, improving the pulverization efficiency and operating quality of the device.

[0051] In some embodiments, the pressure relief pipe 14 is equipped with a pressure regulating valve. Adjusting the pressure regulating valve controls the rate and pressure of pressure relief, ensuring a stable and safe pressure environment within the crushing tank 1 under varying operating conditions and process requirements. During operation of the fluidized bed apparatus for gas pulverization of positive and negative electrode materials, the pressure within the crushing tank 1 changes in real time. A pressure sensor installed within the crushing tank 1 monitors the pressure in real time and transmits the pressure signal to a control system. The control system analyzes and processes the pressure signal based on a preset pressure range and process requirements.

[0052] In some embodiments, a gas flow controller is installed on the air inlet pipe 7 to control the gas flow entering the curved plate 8, and then control the intensity of the airflow ejected from the opposite nozzle 9 to adapt to the crushing of positive and negative electrode materials of different types and particle size requirements; after the airflow is ejected from the nozzle 9, a more intense fluidized state is formed in the crushing tank 1, and the collision and friction between the material particles and between the particles and the airflow are intensified, so that the material can be crushed finer, meeting the production process's demand for fine-grained materials.

[0053] In some embodiments, the inner wall of the crushing tank 1 is provided with a wear-resistant coating, specifically a tungsten carbide coating. If the inner wall of the crushing tank 1 lacks a wear-resistant coating or the coating has poor wear resistance, wear on the inner wall will generate a large number of impurity particles. These impurities can mix into the positive and negative electrode materials, seriously affecting the purity and quality of the materials, and thus the performance of the battery. However, the tungsten carbide coating effectively reduces wear on the inner wall, significantly reducing the generation of impurities and ensuring the purity of the positive and negative electrode materials.

[0054] In some embodiments, the outlet end of the discharge pipe 10 is connected to a cyclone collector or a bag-type dust collector. Bag-type dust collectors are highly effective at collecting fine particles. During the pulverization of the positive and negative electrode materials, some fine dust particles can be effectively intercepted by the bags, thereby improving material collection efficiency and reducing dust emissions.

[0055] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A gas pulverization fluidized bed device for positive and negative electrode materials, comprising a pulverization tank (1), characterized in that: A bracket (2) is fixedly mounted above the crushing pot (1), a servo motor (3) is fixedly mounted above the bracket (2), an output end of the servo motor (3) is fixedly connected to an output shaft (4), upper rotating plates (5) are distributed around the output shaft (4), and the wind direction is downward. Two opposite air inlet pipes (7) are plugged into one end of the crushing pot (1), the air inlet pipes (7) are connected to an arc plate (8), and a plurality of opposite nozzles (9) are provided on the arc plate (8). A discharge pipe (10) is connected to the bottom of the crushing pot (1), a driving motor (11) is provided at the bottom of the crushing pot (1), and a reducer (12) is fixedly connected to the output end of the driving motor (11), and the reducer (12) passes through the crushing pot (1) through a shaft to connect to the lower rotating plate (13) inside, and the wind direction is upward. The crushing pot (1) is connected to a pressure relief pipe (14).

2. A gas pulverization fluidized bed device for positive and negative electrode materials according to claim 1, characterized in that: A fixed block (6) is provided on the top of the inner portion of the crushing tank (1). The fixed block (6) is in a truncated cone shape. The output shaft (4) passes through the fixed block (6) and is rotatably connected thereto.

3. The gas pulverization fluidized bed device for positive and negative electrode materials according to claim 1, characterized in that: The pressure relief pipe (14) is provided with a pressure regulating valve, and the speed and pressure of the pressure relief are controlled by adjusting the pressure regulating valve, thereby ensuring that a stable and safe pressure environment can be maintained inside the crushing tank (1) under different working conditions and process requirements.

4. The gas pulverization fluidized bed device for positive and negative electrode materials according to claim 1, characterized in that: A gas flow controller is installed on the air inlet pipe (7) to control the gas flow entering the arc plate (8), thereby controlling the intensity of the air flow ejected from the opposite nozzle (9) to adapt to the crushing of positive and negative electrode materials of different types and particle sizes.

5. The gas pulverization fluidized bed device for positive and negative electrode materials according to claim 1, characterized in that: The inner wall of the crushing tank (1) is provided with a wear-resistant coating, which is specifically a tungsten carbide coating.

6. The gas pulverization fluidized bed device for positive and negative electrode materials according to claim 1, characterized in that: The outlet end of the discharge pipe (10) is connected to a cyclone collector or a bag-type dust collector.

Images