CN220276848U - Mixing equipment for lithium iron phosphate production - Google Patents

Abstract

The utility model discloses a mixing equipment for the production of lithium iron phosphate, which includes a mixing device. A quantitative feeding component is fixedly installed on the top of the mixing device, and a crushing component is fixedly installed on the upper end of the mixing device. In the above scheme, after determining the amount of pouring by comparing the scale lines on the surface of the feeding measuring cylinder, pulling one end of the valve plate, the raw materials will fall into the inside of the mixing body for crushing and mixing, thereby controlling the amount of feeding and reducing operations. Personnel perform separate proportioning before mixing, which saves manpower and is easy to use; the proportioned raw materials fall to the surface of the fixed filter through the quantitative feeding assembly, and the crushing shaft drives the crushing blade to rotate and crush, and the crushed raw materials fall to At the bottom of the mixing body, the aggregate net is activated to allow the mixing component to stir and mix the internal raw materials, and finally discharge them through the discharge nozzle. Through classification processing, they are first crushed evenly and then stirred, which saves time, makes the mixing more uniform, and improves the device mixing efficiency.

Description

A kind of mixing equipment for lithium iron phosphate production

Technical field

The utility model relates to the technical field of lithium iron phosphate production, and more specifically, the utility model relates to a mixing equipment for the production of lithium iron phosphate.

Background technique

Lithium iron phosphate is a lithium-ion battery electrode material, mainly used in various lithium-ion batteries. In the preparation process of lithium iron phosphate, the reaction raw materials first need to be batched, and then dried and calcined to obtain lithium iron phosphate. The lithium iron phosphate is During the production process, the raw materials need to be mixed. However, the mixing device currently used in the production of lithium iron phosphate does not mix the raw materials evenly during use, and the mixing effect is poor, which ultimately affects the electrochemical performance of lithium iron phosphate.

In order to solve the above problems, patent document publication number CN214681319U, a raw material mixing device for producing lithium iron phosphate, includes an outer cylinder and an inner cylinder. The top of the outer cylinder is provided with a feed pipe, a support and a stirring motor, and the support is fixed on the top of the outer cylinder. , the output end of the stirring motor is connected to a stirring shaft and a transmission mechanism. The stirring shaft extends into the inner cylinder and penetrates the inner cylinder to connect to the bottom plate of the outer cylinder. The stirring shaft is equipped with a stirring paddle, and the transmission mechanism is connected to drive the inner cylinder to rotate. The inner cylinder gear, the stirring shaft and the inner cylinder rotate in opposite directions; the rotation of the inner cylinder is located in the outer cylinder, the top of the inner cylinder is open or is provided with an annular slot I corresponding to the feed pipe, and the top of the inner cylinder is The circumference of the outer wall is provided with a ring gear that matches the gear of the inner cylinder. The bottom end of the inner cylinder is provided with a discharge pipe with a valve. The discharge pipe extends out of the bottom plate of the outer cylinder. The bottom plate of the outer cylinder is provided with an annular ring corresponding to the discharge pipe. Passage Ⅱ.

When the above device is in use, the rotating directions of the stirring shaft and the inner cylinder are opposite, so that the materials in the inner cylinder are stirred evenly, and the mixing effect is improved. However, since the raw materials of lithium iron phosphate are mostly powdery raw materials, when the raw material humidity is relatively high, When it is high, agglomeration is likely to occur. Mixing is done through the stirring shaft and stirring paddle. This mixing method needs to run for a period of time to ensure that the particles are fully mixed, resulting in a reduction in mixing efficiency, and the raw materials need to be proportioned before the raw material mixing process. , the existing method is to proportion the raw materials in advance and then pour them into the mixing equipment for mixing, which is not convenient enough to use.

Utility model content

In order to overcome the above-mentioned defects of the prior art, embodiments of the present invention provide a mixing equipment for the production of lithium iron phosphate to solve the problem that most of the raw materials of existing lithium iron phosphate are powdery raw materials. When the raw material humidity is high, , agglomeration is prone to occur, and the mixing shaft and stirring paddle are used for stirring. This mixing method needs to run for a period of time to ensure that the particles are fully mixed, resulting in a reduction in mixing efficiency, and the raw materials need to be proportioned before the raw material mixing process. Now In some methods, the raw materials are proportioned in advance and then poured into the mixing equipment for mixing, which is not convenient enough to use.

In order to solve the above technical problems, the present utility model provides the following technical solution: a mixing equipment for the production of lithium iron phosphate, including a mixing device. A quantitative feeding assembly is fixedly installed on the top of the mixing device. The mixing device The upper end of the crusher assembly is fixedly installed.

Wherein, the quantitative feeding assembly includes a feeding measuring cylinder, the top of the feeding measuring cylinder is fixedly connected with a feeding port, the side of the feeding measuring cylinder is provided with a scale mark, and the side of the lower end of the feeding measuring cylinder is fixed. A positioning groove is installed, and a valve plate is movablely connected inside the positioning groove.

Wherein, the mixing device includes a mixing body, a support frame is fixedly installed on the side of the upper end of the mixing body, a collecting net is fixedly installed on the upper end inside the mixing body, and the inner wall of the mixing body is fixed A fixed blade is installed, one end of the bottom of the mixing body is fixedly connected to a discharge nozzle, a stirring drive is fixedly installed on the bottom of the mixing body, a stirring assembly is fixedly installed on the top of the stirring drive, and the stirring assembly rotates Installed inside the mixing body.

Wherein, the crushing assembly includes a crushing drive, the crushing drive is fixedly installed on the top of the support frame, a crushing shaft is fixedly installed on the side of the crushing drive, the crushing shaft is rotatably installed on the upper end of the mixing body, the A crushing blade is fixedly installed on the outer surface of the crushing shaft.

Wherein, the aggregate net includes a fixed filter net, and inclined sliding nets are fixedly installed at both ends of the fixed filter net. The fixed filter net and the inclined sliding net are respectively fixedly installed at the upper end of the mixing body, and the There is a certain angle between the inclined sliding screen and the fixed filter screen.

Wherein, the crushing blade and the crushing shaft are respectively rotatably installed on the top of the fixed filter screen.

Technical effects and advantages of this utility model:

In the above scheme, after determining the amount of pouring by comparing the scale lines on the surface of the feeding measuring cylinder, pulling one end of the valve plate, the raw materials will fall into the inside of the mixing body for crushing and mixing, and the feeding amount will be controlled to reduce The operator performs separate proportioning before mixing, saving manpower and making it easy to use;

The proportioned raw materials fall to the surface of the fixed filter screen through the quantitative feeding component. The crushing shaft drives the crushing blade to rotate and crush. The crushed raw materials fall to the bottom of the mixing body. The collecting net is started to make the mixing component align. The internal raw materials are stirred and mixed, and finally discharged through the discharge nozzle. Through classification processing, they are first crushed evenly and then stirred, which saves time, makes the mixing more uniform, and improves the mixing efficiency of the device.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the utility model;

Figure 2 is a schematic structural diagram of the quantitative feeding assembly of the present utility model;

Figure 3 is a schematic structural diagram of the mixing device of the present utility model;

Figure 4 is a schematic structural diagram of the crushing assembly of the present utility model;

Figure 5 is a schematic structural diagram of the aggregate net of the present utility model.

The reference numbers are: 1. Mixing device; 2. Quantitative feeding component; 3. Crushing component; 11. Mixing body; 12. Support frame; 13. Aggregating net; 14. Mixing component; 15. Fixed blade; 16. Discharge nozzle; 17. Stirring drive; 21. Feed measuring cylinder; 22. Feed port; 23. Scale mark; 24. Positioning groove; 25. Valve plate; 31. Crushing drive; 32. Crushing shaft; 33. Crushing blade; 131. Fixed filter screen; 132. Inclined sliding screen.

Detailed ways

In order to make the technical problems, technical solutions and advantages to be solved by the present utility model clearer, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

As shown in Figures 1 to 5, embodiments of the present invention provide a mixing equipment for lithium iron phosphate production, including a mixing device 1. A quantitative feeding assembly 2 is fixedly installed on the top of the mixing device 1. The crushing assembly 3 is fixedly installed on the upper end of the device 1 .

Among them, the quantitative feeding assembly 2 includes a feeding measuring cylinder 21. The top of the feeding measuring cylinder 21 is fixedly connected with a feeding port 22. A scale mark 23 is provided on the side of the feeding measuring cylinder 21. The side of the lower end of the feeding measuring cylinder 21 is fixedly installed. There is a positioning groove 24, and a valve plate 25 is movable inside the positioning groove 24. The positioning groove 24 is provided to limit the position of the valve plate 25 and facilitate the removal of the valve plate 25. The material of the feeding measuring cylinder 21 is set to be transparent plastic. , to facilitate the observation of the scale line 23 and to understand the amount of poured raw materials more intuitively.

Among them, the mixing device 1 includes a mixing body 11. A support frame 12 is fixedly installed on the side of the upper end of the mixing body 11. A collecting net 13 is fixedly installed on the upper end of the inside of the mixing body 11. The inner wall of the mixing body 11 is fixedly installed. There is a fixed blade 15. One end of the bottom of the mixing body 11 is fixedly connected with a discharge nozzle 16. The bottom of the mixing body 11 is fixedly installed with a stirring drive 17. The top of the mixing drive 17 is fixedly installed with a stirring assembly 14. The stirring assembly 14 is rotatably installed. inside the mixing body 11.

Among them, the crushing assembly 3 includes a crushing drive 31. The crushing drive 31 is fixedly installed on the top of the support frame 12. A crushing shaft 32 is fixedly installed on the side of the crushing drive 31. The crushing shaft 32 is rotatably installed on the upper end of the mixing body 11. The crushing shaft The outer surface of 32 is fixedly equipped with a crushing blade 33.

Among them, the aggregate net 13 includes a fixed filter 131. Both ends of the fixed filter 131 are fixed with inclined sliding nets 132. The fixed filter 131 and the inclined sliding net 132 are respectively fixed and installed at the upper end of the inside of the mixing body 11. The tilted A certain angle is formed between the sliding screen 132 and the fixed filter screen 131. An inclined sliding screen 132 is provided, and the crushed and dispersed raw materials are screened through the inclined sliding screen 132, and the larger raw materials slide down to the surface of the fixed filter screen 131 again. , thereby improving the crushing effect of the device.

Among them, the crushing blade 33 and the crushing shaft 32 are respectively rotatably installed on the top of the fixed filter screen 131.

The working process of this utility model is as follows:

When in use, the valve plate 25 is placed inside the feeding measuring cylinder 21 to complete the sealing, and the lithium iron phosphate raw material is poured inside the feeding port 22. The amount of pouring is determined by comparing with the scale line 23 on the surface of the feeding measuring cylinder 21. , pull one end of the valve plate 25 to move the valve plate 25 out of the lower end of the scale line 23, and the raw materials will fall into the inside of the mixing body 11 for crushing and stirring, and the feed amount will be controlled;

The proportioned raw materials fall to the surface of the fixed filter screen 131 through the quantitative feeding assembly 2, and the crushing drive 31 is started. The crushing shaft 32 drives the crushing blade 33 to rotate and crush. At this time, the smaller raw materials directly pass through the fixed filter screen 131. and the inclined sliding screen 132 to fall into the inside of the mixing body 11. The larger raw materials slide down to the top of the fixed filter screen 131 through the surface of the inclined sliding screen 132, and are crushed again by the crushing blade 33. The crushed raw materials fall to At the bottom of the mixing body 11, the collecting net 13 is activated, so that the stirring assembly 14 stirs and mixes the internal raw materials, and finally discharges them through the discharge nozzle 16.

The last few points that should be explained are: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense and can be mechanical connections. Or electrical connection, or internal connection between two components, or direct connection. "Up", "Down", "Left", "Right", etc. are only used to express relative positional relationships. When the absolute position of the object being described is change, the relative positional relationship may change;

Secondly: the drawings of the disclosed embodiments of the present utility model only involve structures related to the disclosed embodiments. Other structures can refer to common designs. In the case of no conflict, the same embodiment and different embodiments of the present utility model can be interchanged with each other. combination;

Finally: The above are only preferred embodiments of the present utility model, and are not intended to limit the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model shall include Within the protection scope of the present utility model.

Claims (4)

1. A mixing equipment for the production of lithium iron phosphate, comprising a mixing device (1), characterized in that a quantitative feeding assembly (2) is fixedly installed on the top of the mixing device (1), and the mixing device (1) is The crushing component (3) is fixedly installed on the upper end of the device (1); The quantitative feeding assembly (2) includes a feeding measuring cylinder (21), the top of the feeding measuring cylinder (21) is fixedly connected with a feeding port (22), and the side of the feeding measuring cylinder (21) is provided with a feeding port (22). Scale mark (23), a positioning groove (24) is fixedly installed on the side of the lower end of the feed measuring cylinder (21), and a valve plate (25) is movable inside the positioning groove (24); The mixing device (1) includes a mixing body (11), a support frame (12) is fixedly installed on the side of the upper end of the mixing body (11), and the upper end of the inside of the mixing body (11) is fixedly installed. There is a collecting net (13), a fixed blade (15) is fixedly installed on the inner wall of the mixing body (11), and one end of the bottom of the mixing body (11) is fixedly connected to a discharge nozzle (16). A stirring drive (17) is fixedly installed at the bottom of the mixing body (11), and a stirring assembly (14) is fixedly installed at the top of the mixing drive (17). The stirring assembly (14) is rotatably installed on the mixing body (11). )internal. 2. The mixing equipment for lithium iron phosphate production according to claim 1, characterized in that the crushing assembly (3) includes a crushing drive (31), and the crushing drive (31) is fixedly installed on the support frame (12). ), a grinding shaft (32) is fixedly installed on the side of the grinding drive (31), and the grinding shaft (32) is rotatably installed on the upper end of the mixing body (11). The grinding shaft (32) A crushing blade (33) is fixedly installed on the outer surface. 3. The mixing equipment for lithium iron phosphate production according to claim 1, characterized in that the aggregate net (13) includes a fixed filter screen (131), and both ends of the fixed filter screen (131) are An inclined sliding screen (132) is fixedly installed. The fixed filter screen (131) and the inclined sliding screen (132) are fixedly installed at the upper end inside the mixing body (11). The inclined sliding screen (132) is connected with the fixed filter screen. A certain included angle is formed between the nets (131). 4. The mixing equipment for lithium iron phosphate production according to claim 2, characterized in that the crushing blade (33) and the crushing shaft (32) are respectively rotatably installed on the top of the fixed filter screen (131).