Sodium battery positive electrode material precursor ultrasonic crushing and mixing device

Abstract

The utility model belongs to the technical field of sodium battery production and application, and particularly relates to an ultrasonic crushing and mixing device for a precursor of a sodium battery positive electrode material. Comprising a rack and a mixing tank arranged on the rack, a stirring motor is arranged at the top of the mixing tank, the output end of the stirring motor is connected with a stirring shaft, the stirring shaft extends into a tank body, a discharging port is formed in the bottom of the mixing tank, and the mixing tank comprises a top cover, a middle tank wall and a bottom cover which are arranged up and down, according to the utility model, a traditional integral mixing tank is formed into a structure with a movable middle part and different upper and lower parts, and a structure similar to a shaftless auger is formed by utilizing the spiral blades on the inner side of the mixing tank, so that the up-and-down movement of materials is realized; and materials at the bottom are subjected to ultrasonic vibration to be mixed and crushed, so that the mixing efficiency is improved, the material mixing speed is increased, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sodium battery production application technical field especially relates to a sodium electricity positive pole material precursor ultrasonic disintegration mixed device. BACKGROUND

[0002] Compared with lithium ion battery, sodium ion battery has two advantages: first, raw material cost is low, does not use lithium, cobalt and other high-priced rare metals, and the biggest advantage of sodium is rich in seawater and other resources, is the element of " taking inexhaustible ", second, can use the existing production process. The working mechanism of sodium ion battery is same as lithium battery, and the existing production equipment of battery enterprise can be directly used to produce sodium ion battery, because basically no repeated equipment investment, so each enterprise can easily carry out production as alternative battery.

[0003] As an important component of sodium ion battery, the performance of positive pole material determines the performance of battery. Because the positive pole material of sodium ion battery is mixed with multiple materials, such as the sodium electricity positive pole material precursor material prepared by the applicant at present includes four kinds of raw materials of three manganese tetroxide (78-88%), two manganese trioxide (5-10%), two nickel trioxide (3-5%), one water aluminum stone (2-5%) and glucose (2-3%), the combination of multiple raw materials leads to a long time of uniform mixing. Therefore, how to improve the mixing efficiency is a problem to be solved at present. UTILITARY MODEL CONTENTS

[0004] The utility model discloses to the technical problem of mixing process in the prior sodium electricity positive pole material precursor production process, propose a kind of sodium electricity positive pole material precursor ultrasonic disintegration mixed device of design reasonable, simple structure, processing is convenient and can effectively realize sodium electricity positive pole material precursor high-efficiency mixing.

[0005] In order to achieve the above purpose, the utility model discloses the technical scheme that is used: the utility model provides a kind of sodium electricity positive pole material precursor ultrasonic disintegration mixed device, including rack and the mixing tank being arranged on rack, the top of the mixing tank is provided with stirring motor, the output end of the stirring motor is connected with stirring shaft, the stirring shaft is arranged into jar body, the bottom of the mixing tank is provided with discharge gate, the mixing tank includes top cover, middle tank wall and bottom cover being arranged in upper and lower, wherein, the middle tank wall is rotatably arranged relative to rack, the middle tank wall is provided with spiral blade, the tool head of ultrasonic generator is provided on the bottom cover, the tool head is cylindrically arranged, the tool head is annularly and uniformly arranged on the bottom cover, at least two circles of tool heads are provided on the bottom cover.

[0006] As preferred, the stirring shaft is provided with a stirring rod, the stirring rod is arranged at a vertical angle with the stirring shaft, the stirring rod is provided with a stirring plate, the stirring plate is arranged on the stirring rod in an inclined downward manner, and the stirring plate is arranged between two adjacent tool heads.

[0007] As preferred, the stirring plate is arranged in an obtuse angle plate shape.

[0008] As preferred, the stirring shaft is further provided with an auxiliary stirring rod, and the auxiliary stirring rod is arranged above the stirring rod.

[0009] As preferred, the stirring shaft is provided with at least two layers of auxiliary stirring rods arranged in an up-down interval.

[0010] Compared with the prior art, the advantages and positive effects of the utility model are that:

[0011] 1. The sodium battery positive electrode material precursor ultrasonic crushing and mixing device is characterized in that the traditional integrated mixing tank is formed in a structure different in the middle and up and down, a structure similar to a shaftless dragon is formed by the spiral blades in the mixing tank, the up and down movement of materials is realized, meanwhile, the bottom materials are subjected to ultrasonic vibration mixing and crushing by the arrangement of the ultrasonic generator, the mixing efficiency is improved, the material mixing speed is accelerated, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor under the premise of the drawings.

[0013] Figure 1 The structure schematic view of the sodium battery positive electrode material precursor ultrasonic crushing and mixing device provided for the embodiment 1 is shown in the figure.

[0014] Figure 2 The structure schematic view of the stirring rod provided for the embodiment 1 is shown in the figure.

[0015] In the above figures, 1 is a rack, 2 is a mixing tank, 21 is a top cover, 22 is a middle tank wall, 221 is a spiral blade, 23 is a bottom cover, 24 is a stirring motor, 25 is a stirring shaft, 3 is a tool head, 4 is a stirring rod, 41 is a stirring plate, and 5 is an auxiliary stirring rod. DETAILED DESCRIPTION

[0016] In order to enable the above-mentioned purpose, features and advantages of the present application to be clearer, the present application will be further described below in conjunction with the drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0017] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, the present application is not limited to the specific embodiments disclosed in the following description.

[0018] Embodiment 1, as shown in Figure 1 , Figure 2 The present embodiment aims to improve the mixing efficiency of the sodium battery positive electrode material precursor, for this purpose, the sodium battery positive electrode material precursor ultrasonic crushing and mixing device provided by the present embodiment comprises a rack 1 and a mixing tank 2 arranged on the rack 1, and the rack 1 of the existing mixing tank 2 is different, in the present embodiment, the rack 1 is a rectangular cuboid frame welded from profile steel, which wraps the mixing tank 2, the main purpose of this arrangement is to facilitate the rotation of the middle tank body of the mixing tank 2.

[0019] A stirring motor 24 is arranged on the top of the mixing tank 2, the output end of the stirring motor 24 is connected with a stirring shaft 25, the stirring shaft 25 is arranged in the tank body, and a discharge port is arranged at the bottom of the mixing tank 2.

[0020] In order to achieve the purpose of improving the mixing efficiency, in the present embodiment, the mixing tank 2 comprises a top cover 21, a middle tank wall 22 and a bottom cover 23 arranged in sequence, wherein the middle tank wall 22 is rotatably arranged relative to the rack 1, specifically, the top cover 21 and the bottom cover 23 are fixed on the rack 1, and bearings are sleeved between the top cover 21 and the middle tank wall 22 and between the bottom cover 23 and the middle tank wall 22, and the diameter relationship from large to small is top cover 21, middle tank wall 22 and bottom cover 23. The purpose of this arrangement is to improve the flow of materials in the tank body.

[0021] At the same time, a spiral blade 221 is arranged on the middle tank wall 22, the spiral blade 221 is a structure in which the middle shaft of the existing spiral is removed, in this way, under the rotation of the middle tank wall 22, the spiral blade 221 forms a shaftless auger structure, which drives some materials at the bottom upward, realizing the up and down movement of the materials. The rotation mode of the middle tank wall 22 mainly relies on gear rotation, that is, a gear ring (not shown in the figure) is sleeved on the outer wall of the middle tank wall 22, the rotation of the middle tank wall 22 is realized through the meshing of the motor and the gear ring. This structure is similar to the structure of the existing flat rotary extractor, therefore, in the present embodiment, no detailed description is given.

[0022] In order to further achieve the mixing effect, in the embodiment, the tool head 3 of the ultrasonic generator is arranged on the bottom cover 23, and the other part of the ultrasonic generator is arranged outside the tank body. Since the structure of the ultrasonic generator is not changed in the embodiment, the tool head 3 is directly contacted with the material, and the tool head 3 generates ultrasonic vibration to crush the material and make the gap between the materials smaller, so that the material on the upper layer is discharged, and the up-down movement is completed. In the embodiment, the tool head 3 is arranged in a column shape, and the tool head 3 is arranged in a ring shape on the bottom cover 23. In the embodiment, at least two circles of tool heads 3 are arranged on the bottom cover 23.

[0023] In this way, the original stirring structure is matched to realize the mixing of the material in three aspects at the same time, and the mixing effect is achieved.

[0024] In order to further improve the stirring effect, in the embodiment, the stirring rod 4 is arranged on the stirring shaft 25. The stirring rod 4 is a square rod, and the stirring rod 4 is arranged at a vertical angle with the stirring shaft 25. The stirring plate 41 is arranged on the stirring rod 4. The stirring plate 41 is arranged on the stirring rod 4 in an inclined downward manner, and the stirring plate 41 is arranged between the adjacent two circles of tool heads 3. The purpose of the stirring plate 41 is to move the material from the two sides of the tool head 3, so that the material on the upper layer falls. Therefore, the stirring plate 41 forms a material lifting state in the rotating process, so as to move the material, and then make the new material fall, thereby achieving the crushing and vibration effect of the tool head 3.

[0025] In order to make the material move more widely, in the embodiment, the stirring plate 41 is arranged in an obtuse angle plate shape.

[0026] Considering that the main effect of mixing is still from the stirring shaft 25, the auxiliary stirring rod 5 is further arranged on the stirring shaft 25. The auxiliary stirring rod 5 is arranged above the stirring rod 4. At least two layers of auxiliary stirring rods 5 are arranged on the stirring shaft 25 in an up-down interval.

[0027] In the embodiment, two layers of auxiliary stirring rods 5 are arranged. In this way, the stirring efficiency is improved by using the effect of multiple layers of stirring, and the production efficiency of the enterprise is improved.

[0028] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments still belongs to the protection scope of the technical scheme of the present application.

Claims

1. An ultrasonic crushing and mixing device for a sodium electric positive electrode material precursor, comprising a rack and a mixing tank arranged on the rack, a stirring motor is arranged at the top of the mixing tank, an output end of the stirring motor is connected with a stirring shaft, the stirring shaft is arranged to extend into the tank body, and a discharge port is arranged at the bottom of the mixing tank, characterized in that, The mixing tank comprises a top cover, a middle tank wall and a bottom cover arranged in sequence, wherein the middle tank wall is rotatably arranged relative to the frame, the middle tank wall is provided with spiral blades, the bottom cover is provided with a tool head of an ultrasonic generator, the tool head is cylindrically arranged, the tool head is annular and uniformly arranged on the bottom cover, the bottom cover is provided with at least two circles of the tool head, the stirring shaft is provided with a stirring rod, the stirring rod is arranged at a vertical angle relative to the stirring shaft, the stirring rod is provided with a stirring plate, the stirring plate is arranged on the stirring rod in an inclined downward manner, and the stirring plate is arranged between two adjacent circles of the tool head.

2. The sodium electric cathode material precursor ultrasonic grinding and mixing device according to claim 1, characterized in that, The stirring plate is arranged in an obtuse angle plate shape.

3. The sodium electric cathode material precursor ultrasonic grinding and mixing device according to claim 2, characterized in that, The stirring shaft is further provided with an auxiliary stirring rod, and the auxiliary stirring rod is arranged above the stirring rod.

4. The sodium electric cathode material precursor ultrasonic grinding and mixing device according to claim 3, characterized in that, The stirring shaft is provided with at least two layers of auxiliary stirring rods arranged in sequence.

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