Battery raw material mixing and stirring device

Abstract

The utility model relates to the technical field of battery production, and discloses a battery raw material mixing and stirring device which comprises a mixing kettle, and a dry powder pipe and a liquid pipe which are used for feeding are fixedly mounted at the top of the mixing kettle; the stirring structure comprises a buffer tank, a rotating part, paddle plates and evacuation holes, the buffer tank is fixedly connected with the material mixing kettle, the interior of the buffer tank is hollow, the rotating part is rotationally connected with the buffer tank, the multiple paddle plates are fixedly installed on the wall face of the rotating part, and the multiple evacuation holes are formed in the wall face of each paddle plate; liquid enters the cavity of the paddle plate and is discharged from the evacuation holes, then the rectangular plate of the paddle plate can continuously spray out the liquid in the material rotating and turning process, solid and liquid are evenly mixed, and compared with the mode that sufficient liquid raw materials are added at a time and then powder is added, the liquid and the powder can be better mixed through the scheme, so that the mixing efficiency is improved. The liquid is discharged while the powder is stirred, so that the mixing uniformity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a battery raw material mixing and stirring device. Background Art

[0002] As an important energy storage component, lithium iron phosphate manganese is an important material for making lithium iron phosphate batteries, and there are various methods such as high-temperature solid-phase method, hydrothermal method, sol-gel method and co-precipitation method for preparation.

[0003] The prior art discloses an environmentally friendly preparation device for lithium iron phosphate manganese powder for lithium iron phosphate batteries (publication number: CN217962523U), which includes a tank body. A power mechanism is arranged on the back of the tank body. A stirring rod is rotatably arranged inside the tank body. A connecting sleeve is rotatably arranged on the stirring rod. A plurality of stirring blades are arranged on the stirring rod and the connecting sleeve. A plurality of connecting rods are arranged at the lower end of the stirring rod. A scraping mechanism is arranged on the connecting rods. The power mechanism includes a motor, a rotating rod and a driving bevel gear. The motor is installed inside the tank body. The rotating rod is rotatably installed on the inner wall of the tank body, and one end of the rotating rod is connected to the output shaft of the motor. The driving bevel gear is installed at the end of the rotating rod away from the inner wall of the tank body. The scraping mechanism includes a connecting plate, a plurality of springs and a scraping plate.

[0004] In the prior art, the materials are mainly stirred by two sets of reversely rotating rod structures. For the mixing of batteries, the raw materials include liquid phase and solid. During the stirring process, the solid and liquid raw materials are added successively. This makes the mixing effect of solid and liquid poor in the initial stage of stirring, and the mixing efficiency is limited. There is a certain room for optimization in the way of adding solid and liquid.

[0005] Therefore, we propose a battery raw material mixing and stirring device. Content of the Utility Model

[0006] The utility model mainly solves the technical problem of poor mixing effect of solid and liquid raw materials in the initial stage of stirring, and provides a battery raw material mixing and stirring device.

[0007] In order to achieve the above object, the utility model adopts the following technical scheme. A battery raw material mixing and stirring device includes:

[0008] A mixing kettle, which is a tank structure for storing raw materials. A dry powder pipe and a liquid pipe for feeding materials are fixedly installed on the top of the mixing kettle. A material pipe for discharging materials is fixedly arranged at the bottom of the mixing kettle;

[0009] The stirring structure is arranged in the mixing kettle cavity for mixing solid and liquid raw materials. The stirring structure includes a buffer tank, a rotating part, paddle boards and evacuation holes. The buffer tank is fixedly connected to the mixing kettle, and the inside of the buffer tank is hollow. The rotating part is rotatably connected to the buffer tank. A number of paddle boards are fixedly installed on the wall surface of the rotating part. The paddle boards and the inside of the rotating part are provided with the same conveying channels. A number of evacuation holes are opened on the wall surface of the paddle boards. The liquid pipe is fixedly connected to and communicated with the buffer tank. Each paddle board can spray liquid raw materials during the rotation process.

[0010] As a preferred embodiment of the present invention, the buffer tank forms a cylindrical structure. A bushing is fixedly arranged inside the buffer tank. The bushing penetrates through the entire buffer tank. The liquid pipe is fixedly installed on the top of the buffer tank and penetrates through the top surface of the buffer tank.

[0011] As a preferred embodiment of the present invention, the rotating part includes a main shaft and a sleeve sleeved outside the main shaft. The inner diameter of the sleeve cavity is larger than the diameter of the main shaft. A sandwich chamber is formed between the sleeve and the main shaft. The sleeve is rotatably connected to the bushing. The main shaft is fixedly connected to the sleeve and extends above the sleeve. A motor is arranged on the top of the mixing kettle to drive the main shaft. The main shaft is fixedly connected to the output shaft of the motor.

[0012] As a preferred embodiment of the present invention, two rubber rings are arranged on the wall surface of the sleeve of the rotating part, and a water inlet hole is arranged between the two rubber rings.

[0013] As a preferred embodiment of the present invention, the paddle board includes a square pipe extending horizontally and a rectangular plate extending obliquely towards the bottom of the mixing kettle. The rectangular plate is fixedly connected to the square pipe. The square pipe penetrates through the sleeve of the rotating part and extends into the sandwich chamber.

[0014] As a preferred embodiment of the present invention, the evacuation holes are round holes. The evacuation holes are opened on the rectangular plate of the paddle board. The rectangular plate is a hollow structure inside, and the evacuation holes communicate with the chamber of the rectangular plate.

[0015] As a preferred embodiment of the present invention, the stirring structure further includes convex ribs. A number of convex ribs are fixedly installed on the wall surface of the paddle board, and two adjacent convex ribs are parallel to each other.

[0016] As a preferred embodiment of the present invention, the convex ribs are fixedly arranged on the rectangular plate of the paddle board. One convex rib is arranged between two adjacent rows of evacuation holes. The convex ribs form a rod structure with a parallelogram cross-section.

[0017] The present invention provides a battery raw material mixing and stirring device, which has the following beneficial effects:

[0018] 1. The battery raw material mixing and stirring device sends liquid raw materials into the cavity of the rotating part through a liquid pipe. The liquid enters the chamber of the paddle and discharges from each evacuation hole. The motor is connected to the power supply, and the motor drives the rotating part to rotate. Then, during the process of the rectangular plate of the paddle rotating and turning over the materials, the liquid can be continuously ejected, enabling uniform mixing of solid and liquid. Compared with the method of adding all the liquid raw materials at once and then adding the powder, this solution can better mix the liquid and the powder, discharging the liquid while stirring the powder, improving the uniformity of mixing. After discharging the materials, the liquid pipe is connected to a water source, and water is sprayed towards the inner wall of the mixing kettle through each evacuation hole to clean the inner wall of the mixing kettle, thereby simplifying the steps of cleaning the inner wall of the mixing kettle and facilitating the cleaning operation after mixing.

[0019] 2. The battery raw material mixing and stirring device is provided with convex ribs. During the process of the paddle rotating and turning over the materials, the inclined convex ribs can squeeze the mixed materials, improving the fluidity of the materials and further enhancing the mixing effect and efficiency of the materials. Description of the Drawings

[0020] Figure 1 One of the overall three-dimensional views of the present utility model;

[0021] Figure 2 Another overall three-dimensional view of the present utility model;

[0022] Figure 3 Schematic diagram of the internal structure of the mixing kettle of the present utility model;

[0023] Figure 4 Overall three-dimensional view of the stirring structure of the present utility model;

[0024] Figure 5 Cross-sectional view of the rotating part of the present utility model;

[0025] Figure 6 Partial sectional view of the rotating part.

[0026] Legend: 10, mixing kettle; 11, dry powder pipe; 12, liquid pipe; 20, buffer tank; 21, rotating part; 22, paddle; 23, convex rib; 24, evacuation hole. Detailed Embodiment

[0027] A battery raw material mixing and stirring device, as Figure 1 and Figure 2 shown, includes:

[0028] A mixing kettle 10, a tank structure for storing raw materials. The top of the mixing kettle 10 is fixedly installed with a dry powder pipe 11 and a liquid pipe 12 for adding materials. The bottom of the mixing kettle 10 is fixedly provided with a material pipe for discharging materials. The dry powder pipe 11 has a larger diameter for injecting powder raw materials. A flange is provided at the port of the dry powder pipe 11, and the port of the dry powder pipe 11 can be plugged with a plug;

[0029] As shown in Figure 3 , Figure 4 , Figure 5 and Figure 6 shown, the agitating structure is arranged in the cavity of the mixing kettle 10 for mixing solid-liquid raw materials. The agitating structure includes a buffer tank 20, a rotating part 21, paddle plates 22 and evacuation holes 24. The buffer tank 20 is fixedly connected to the mixing kettle 10. The inside of the buffer tank 20 is hollow. The rotating part 21 is rotatably connected to the buffer tank 20. A number of paddle plates 22 are fixedly installed on the wall surface of the rotating part 21. The paddle plates 22 and the inside of the rotating part 21 are provided with the same conveying channels. A number of evacuation holes 24 are opened on the wall surface of the paddle plates 22. The liquid pipe 12 is fixedly connected to and communicates with the buffer tank 20. Each paddle plate 22 can spray liquid raw materials during the rotation process. The buffer tank 20 forms a cylindrical structure. A bushing is fixedly arranged inside the buffer tank 20. The bushing penetrates through the entire buffer tank 20. The liquid pipe 12 is fixedly installed on the top of the buffer tank 20 and penetrates through the top surface of the buffer tank 20. The rotating part 21 includes a main shaft and a sleeve sleeved outside the main shaft. The inner diameter of the sleeve cavity is larger than the diameter of the main shaft. A sandwich chamber is formed between the sleeve and the main shaft. The sleeve is rotatably connected to the bushing. The main shaft is fixedly connected to the sleeve and extends above the sleeve. A motor is arranged on the top of the mixing kettle 10 to drive the main shaft. The main shaft is fixedly connected to the output shaft of the motor. Two rubber rings are arranged on the wall surface of the sleeve of the rotating part 21. An inlet hole is arranged between the two rubber rings. The paddle plate 22 includes a square pipe extending horizontally and a rectangular plate extending obliquely towards the bottom of the mixing kettle 10. The rectangular plate is fixedly connected to the square pipe. The square pipe penetrates through the sleeve of the rotating part 21 and extends into the sandwich chamber. The evacuation hole 24 is a round hole. The evacuation hole 24 is opened on the rectangular plate of the paddle plate 22. The rectangular plate is a hollow structure inside. The evacuation hole 24 communicates with the chamber of the rectangular plate. In this solution, the liquid raw materials are sent into the cavity of the rotating part 21 through the liquid pipe 12. The liquid enters the chamber of the paddle plate 22 and is discharged from each evacuation hole 24. The motor is connected to the power supply. The motor drives the rotating part 21 to rotate. Then, during the process of the rectangular plate of the paddle plate 22 rotating and turning over the materials, the liquid can be continuously ejected, so that the solid and liquid are evenly mixed. Compared with the method of adding all the liquid raw materials at one time and then adding the powder, this solution can better mix the liquid and the powder, discharge the liquid while stirring the powder, and improve the mixing uniformity. After discharging the materials, the liquid pipe 12 is connected to the water source, and water is sprayed towards the inner wall of the mixing kettle 10 through each evacuation hole 24 to clean the inner wall of the mixing kettle 10, thereby simplifying the steps of cleaning the inner wall of the mixing kettle 10 and facilitating the cleaning operation after mixing.

[0030] As shown in Figure 4As shown, the stirring structure further includes ribbed bars 23. A number of ribbed bars 23 are fixedly installed on the wall surface of the paddle plate 22. Two adjacent ribbed bars 23 are parallel to each other. The ribbed bars 23 are fixedly arranged on the rectangular plate of the paddle plate 22. One ribbed bar 23 is arranged between two adjacent rows of evacuation holes 24. The ribbed bars 23 form a rod structure with a parallelogram cross-section. As a supplementary explanation of the above solution, by providing the ribbed bars 23, during the process of the paddle plate 22 rotating and turning over the material, the inclined ribbed bars 23 can squeeze the mixed material, improving the fluidity of the material and further enhancing the mixing effect and efficiency of the material.

[0031] The working principle of the present utility model: The liquid pipe 12 feeds the liquid raw material into the cavity of the rotating part 21. The liquid enters the chamber of the paddle plate 22 and discharges from each evacuation hole 24. The motor is connected to the power supply. The motor drives the rotating part 21 to rotate. Then, during the process of the rectangular plate of the paddle plate 22 rotating and turning over the material, the liquid can be continuously ejected, enabling the solid and liquid to be evenly mixed. During the process of the paddle plate 22 rotating and turning over the material, the inclined ribbed bars 23 can squeeze the mixed material, improving the fluidity of the material and enhancing the turning and squeezing effect on the material to promote the mixing of the material.

[0032] The above has shown and described the basic principle, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A battery raw material mixing and stirring device, characterized in that, Including: A mixing kettle (10), which is a tank structure for storing raw materials. A dry powder pipe (11) and a liquid pipe (12) for feeding materials are fixedly installed at the top of the mixing kettle (10), and a material pipe for discharging materials is fixedly arranged at the bottom of the mixing kettle (10). A stirring structure, which is arranged in the cavity of the mixing kettle (10) for mixing solid and liquid raw materials. The stirring structure includes a buffer tank (20), a rotating part (21), paddle boards (22) and evacuation holes (24). The buffer tank (20) is fixedly connected to the mixing kettle (10), and the inside of the buffer tank (20) is hollow. The rotating part (21) is rotatably connected to the buffer tank (20). A plurality of paddle boards (22) are fixedly installed on the wall surface of the rotating part (21). The paddle boards (22) and the rotating part (21) are internally provided with the same conveying channels. A plurality of evacuation holes (24) are formed on the wall surface of the paddle boards (22). The liquid pipe (12) is fixedly connected to and communicated with the buffer tank (20), and each paddle board (22) can spray liquid raw materials during the rotation process.

2. The battery raw material mixing and stirring device according to claim 1, characterized in that: The buffer tank (20) forms a cylindrical structure. A shaft sleeve is fixedly arranged inside the buffer tank (20), and the shaft sleeve penetrates through the entire buffer tank (20). The liquid pipe (12) is fixedly installed at the top of the buffer tank (20) and penetrates through the top surface of the buffer tank (20).

3. The battery raw material mixing and stirring device according to claim 1, characterized in that: The rotating part (21) includes a main shaft and a sleeve sleeved outside the main shaft. The inner diameter of the sleeve cavity is larger than the diameter of the main shaft. A sandwich chamber is formed between the sleeve and the main shaft. The sleeve is rotatably connected to the shaft sleeve. The main shaft is fixedly connected to the sleeve and extends above the sleeve. A motor is arranged at the top of the mixing kettle (10) to drive the main shaft, and the main shaft is fixedly connected to the output shaft of the motor.

4. The battery raw material mixing and stirring device according to claim 1, wherein: Two rubber rings are arranged on the wall surface of the sleeve of the rotating part (21), and a water inlet hole is arranged between the two rubber rings.

5. The battery raw material mixing and stirring device according to claim 1, wherein: The paddle board (22) includes a square pipe extending horizontally and a rectangular plate extending obliquely towards the bottom of the mixing kettle (10). The rectangular plate is fixedly connected to the square pipe, and the square pipe penetrates through the sleeve of the rotating part (21) and extends into the sandwich chamber.

6. The battery raw material mixing and stirring device according to claim 1, characterized in that: The evacuation hole (24) is a round hole. The evacuation hole (24) is formed on the rectangular plate of the paddle board (22). The rectangular plate is a hollow structure inside, and the evacuation hole (24) communicates with the chamber of the rectangular plate.

7. The battery raw material mixing and stirring device according to claim 1, characterized in that: The stirring structure further includes convex ribs (23). A plurality of convex ribs (23) are fixedly installed on the wall surface of the paddle board (22), and two adjacent convex ribs (23) are parallel to each other.

8. The battery raw material mixing and stirring device according to claim 7, wherein: The convex ribs (23) are fixedly arranged on the rectangular plate of the paddle board (22). One convex rib (23) is arranged between two adjacent rows of evacuation holes (24), and the convex ribs (23) form a rod structure with a parallelogram cross-section.

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