Slurry mixing device for lithium battery production

Abstract

The utility model discloses a slurry mixing device for lithium battery production, which comprises a mixing reaction kettle, a central stirring motor is mounted at the upper end of the mixing reaction kettle, a main shaft of the central stirring motor extends downwards into the mixing reaction kettle, and a plurality of groups of transverse stirring rods which are uniformly spaced from top to bottom are mounted on the main shaft; and a stirring gap is reserved between the transverse stirring rod and the inner wall of the mixing reaction kettle. A stirring gap is reserved between the transverse stirring rod and the inner wall of the mixing reaction kettle; a lateral stirring motor is correspondingly mounted on the outer wall of the mixing reaction kettle, a main shaft of the lateral stirring motor extends into the mixing reaction kettle and is provided with a vertical stirring rod, the vertical stirring rod is arranged on the inner wall of the mixing reaction kettle, the transverse stirring rod is used for stirring in the horizontal direction, and the vertical stirring rod is used for stirring in the vertical direction; multi-direction matched stirring is achieved, the slurry mixing and stirring effect is effectively improved, the slurry mixing quality is improved, the structural design is ingenious and reasonable, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of calcining equipment used for preparing ion batteries, in particular to a slurry mixing device for lithium battery production. Background Art

[0002] In the prior art, mixing and dispersing of lithium battery slurry is an essential and very important step in the lithium battery manufacturing process. Usually, in this step, the effect of slurry mixing and stirring will directly affect the quality of the lithium battery. Therefore, the lithium battery slurry needs to be stirred thoroughly during mixing and stirring.

[0003] For example, the technical solution of application publication number: CN 110614052 A discloses "a slurry mixing and stirring device for lithium battery production". In this technical solution, a plurality of stirring plates are arranged in a stirring box, and the slurry is mixed and stirred evenly by the plurality of stirring plates.

[0004] However, in the above technical solution, although there are many stirring blades, the rotation and stirring direction of the stirring blades is still in one direction, which leads to that the quality of mixing and stirring is not ideal and the mixing is not uniform during actual use.

[0005] Therefore, in order to solve the above problems, it is necessary to develop a slurry mixing device for lithium battery production with a reasonable structure and improved mixing quality. Utility Model Content

[0006] The purpose of the utility model is to provide a slurry mixing device for lithium battery production in view of the shortcomings of the prior art; its technical solution is as follows:

[0007] A slurry mixing device for lithium battery production includes a mixing reactor, a central stirring motor is installed at the upper end of the mixing reactor, the main shaft of the central stirring motor extends downward into the mixing reactor, and a plurality of groups of transverse stirring rods evenly spaced from top to bottom are installed on the main shaft, and a stirring gap is left between the transverse stirring rods and the inner wall of the mixing reactor.

[0008] A horizontally arranged lateral stirring motor is also installed on the outer wall of the mixing reactor. The lateral stirring motors are arranged in several rows on the outer wall of the mixing reactor, and each row is provided with several lateral stirring motors evenly spaced up and down. The main shaft of the lateral stirring motor extends into the mixing reactor, and a vertical stirring rod is also installed on the main shaft. The vertical stirring rod is arranged in the stirring gap between the horizontal stirring rod and the mixing reactor.

[0009] Furthermore, a mounting block is provided at the middle position of the bottom of the mixing reactor; the main shaft of the central stirring motor is fixed downwardly correspondingly on the mounting block.

[0010] Furthermore, a bearing is provided at the lower end of the main shaft of the central stirring motor, and the main shaft is correspondingly arranged on the mounting block through the bearing.

[0011] Furthermore, the mounting block is a conical protruding structure, so that a recessed area is formed on the outer side of the lower end of the mixing reactor.

[0012] Furthermore, a discharge pipe is provided at the recessed area at the lower end of the mixing reactor, and a corresponding feed pipe is provided at the upper end of the mixing reactor.

[0013] Furthermore, a total of four rows of lateral stirring motors are arranged on the outer wall of the mixing reactor, and each row is provided with three lateral stirring motors.

[0014] Furthermore, four plane structures are arranged on the side wall of the mixing reactor, and the lateral stirring motor is arranged on the plane structure.

[0015] Beneficial effects: The utility model has the following beneficial effects:

[0016] 1) In the device, a central stirring motor is firstly arranged in the mixing reactor and a transverse stirring rod is arranged on the main shaft, so that the battery slurry in the mixing reactor can be stirred in the normal direction. At the same time, a stirring gap is left between the transverse stirring rod and the inner wall of the mixing reactor; and a lateral stirring motor is correspondingly installed on the outer wall of the mixing reactor. The main shaft of the lateral stirring motor extends into the mixing reactor and a vertical stirring rod is installed. The vertical stirring rod is arranged on the inner wall of the mixing reactor. The transverse stirring rod stirs in the horizontal direction, while the vertical stirring rod stirs in the vertical direction. The multi-directional coordinated stirring effectively improves the mixing and stirring effect of the slurry and improves the mixing quality of the slurry. The structural design is very ingenious and reasonable, and it is easy to use.

[0017] 2) The central stirring motor of the device is arranged at the middle position, and the mixing reactor is provided with a conical mounting block at the bottom to match the installation of the main shaft of the central stirring motor, so that the main shaft can be arranged on the mounting block downward through the bearing member; in addition, a recessed area can be formed on the outside through the mounting block, and then the discharge pipe is arranged in the recessed area, and a corresponding feed pipe is arranged at the upper end. The overall structure is arranged reasonably, especially the installation of the central stirring motor is very reasonable;

[0018] 3) In this device, there are four rows of lateral stirring motors on the side wall of the mixing reactor, and each row can be equipped with a large number of lateral stirring motors. This design is mainly to cooperate with the central stirring motor in the middle. When multiple stirring motors are coordinated, the overall mixing and stirring effect is significantly improved; and in order to install the lateral stirring motor, a plane structure is also set on the side wall of the mixing reactor. The plane structure is more convenient for the installation of the lateral stirring motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the structural diagram of the utility model;

[0020] Figure 2 for Figure 1 Middle AA section view. DETAILED DESCRIPTION

[0021] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. The embodiments are implemented based on the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0022] like Figure 1 and Figure 2 As shown, a slurry mixing device for lithium battery production includes a mixing reactor 1, a central stirring motor 2 is installed at the upper end of the mixing reactor 1, the main shaft of the central stirring motor 2 extends downward into the mixing reactor 1, and a plurality of groups of transverse stirring rods 3 are installed on the main shaft, which are evenly spaced from top to bottom, and a stirring gap is left between the transverse stirring rods 3 and the inner wall of the mixing reactor 1.

[0023] A horizontally arranged lateral stirring motor 4 is also installed on the outer wall of the mixing reactor 1. The lateral stirring motor 4 is arranged in several rows on the outer wall of the mixing reactor 1. Each row is provided with several lateral stirring motors 4 evenly spaced up and down. The main shaft of the lateral stirring motor 4 extends into the mixing reactor 1. A vertical stirring rod 5 is also installed on the main shaft. The vertical stirring rod 5 is arranged in the stirring gap between the horizontal stirring rod 3 and the mixing reactor 1.

[0024] In this device, firstly, a central stirring motor is arranged in the mixing reactor and a transverse stirring rod is arranged on the main shaft, so that the battery slurry in the mixing reactor can be stirred in the normal direction. At the same time, a stirring gap is left between the transverse stirring rod and the inner wall of the mixing reactor; and a lateral stirring motor is correspondingly installed on the outer wall of the mixing reactor. The main shaft of the lateral stirring motor extends into the mixing reactor and a vertical stirring rod is installed. The vertical stirring rod is arranged on the inner wall of the mixing reactor. The transverse stirring rod stirs in the horizontal direction, while the vertical stirring rod stirs in the vertical direction. The multi-directional coordinated stirring effectively improves the mixing and stirring effect of the slurry and improves the mixing quality of the slurry. The structural design is very ingenious and reasonable, and it is easy to use.

[0025] A mounting block 6 is also provided at the middle position of the bottom of the mixing reactor 1 ; the main shaft of the central stirring motor 2 is fixed downwardly correspondingly on the mounting block 6 .

[0026] A bearing member 7 is also provided at the lower end of the main shaft of the central stirring motor 2 , and the main shaft is correspondingly arranged on the mounting block 6 through the bearing member 7 .

[0027] The mounting block 6 is a conical protruding structure, so that a recessed area 8 is formed on the outer side of the lower end of the mixing reactor 1 .

[0028] A discharge pipe 9 is also provided at the depressed area 8 at the lower end of the mixing reactor 1 , and a corresponding feed pipe 10 is provided at the upper end of the mixing reactor 1 .

[0029] The central stirring motor of the device is arranged at the middle position, and the mixing reactor is provided with a conical mounting block at the bottom to cooperate with the installation of the main shaft of the central stirring motor, so that the main shaft can be arranged on the mounting block downward through the bearing; in addition, a recessed area can be formed on the outside through the mounting block, and then the discharge pipe is arranged in the recessed area, and a corresponding feed pipe is arranged at the upper end. The overall structure is reasonably arranged, especially the installation of the central stirring motor is very reasonable.

[0030] A total of four rows of lateral stirring motors 4 are arranged on the outer wall of the mixing reactor 1 , and three lateral stirring motors 4 are arranged in each row.

[0031] Four plane structures 11 are also arranged on the side wall of the mixing reactor 1 , and the lateral stirring motor 4 is arranged on the plane structures 11 .

[0032] In this device, there are four rows of lateral stirring motors on the side wall of the mixing reactor, and each row can be provided with a large number of lateral stirring motors. This design is mainly to cooperate with the central stirring motor in the middle. When multiple stirring motors are coordinated, the overall mixing and stirring effect is significantly improved; and in order to install the lateral stirring motor, a plane structure is also set on the side wall of the mixing reactor. The plane structure makes it more convenient to install the lateral stirring motor.

[0033] The above-mentioned specific implementation mode is only a preferred embodiment of the present invention and is not intended to limit the implementation of the present invention and the scope of the claims. All equivalent changes and modifications made according to the content of the patent protection scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A slurry mixing device for lithium battery production, characterized in that: The invention comprises a mixing reactor (1), wherein a central stirring motor (2) is installed at the upper end of the mixing reactor (1), the main shaft of the central stirring motor (2) extends downward into the mixing reactor (1), and a plurality of groups of transverse stirring rods (3) are installed on the main shaft, which are evenly spaced from top to bottom, and a stirring gap is left between the transverse stirring rods (3) and the inner wall of the mixing reactor (1); A transversely arranged lateral stirring motor (4) is also installed on the outer wall of the mixing reactor (1); the lateral stirring motor (4) is arranged in a plurality of rows on the outer wall of the mixing reactor (1); each row is provided with a plurality of lateral stirring motors (4) evenly spaced up and down; the main shaft of the lateral stirring motor (4) extends into the mixing reactor (1); a vertical stirring rod (5) is also installed on the main shaft; the vertical stirring rod (5) is arranged in the stirring gap between the transverse stirring rod (3) and the mixing reactor (1); A mounting block (6) is also provided at the middle position of the bottom of the mixing reactor (1); the main shaft of the central stirring motor (2) is fixed downwardly correspondingly on the mounting block (6); A bearing member (7) is also provided at the lower end of the main shaft of the central stirring motor (2), and the main shaft is correspondingly arranged on the mounting block (6) via the bearing member (7); The mounting block (6) is in the form of a conical protruding structure, so that a recessed area (8) is formed on the outer side of the lower end of the mixing reactor (1); A discharge pipe (9) is also provided at the recessed area (8) at the lower end of the mixing reactor (1), and a corresponding feed pipe (10) is provided at the upper end of the mixing reactor (1); A total of four rows of lateral stirring motors (4) are arranged on the outer wall of the mixing reactor (1), and each row is provided with three lateral stirring motors (4); Four plane structures (11) are also arranged on the side wall of the mixing reactor (1), and the lateral stirring motor (4) is arranged on the plane structures (11).

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