CN213528210U - High solid content thick liquids agitating unit of positive negative pole of lithium cell - Google Patents

Abstract

The utility model discloses a positive negative high solid content thick liquids agitating unit of lithium cell, including the stirred tank body that is equipped with feed inlet and discharge gate and install the horizontal rabbling mechanism that is used for stirring thick liquids on the stirred tank body, stirred tank internal fixation has pressure sensor, temperature sensor, humidity transducer and is used for the heating mechanism for the internal portion heating of stirred tank, and protective gas inlet and outlet have been seted up on stirred tank body upper portion. The utility model discloses can realize before the stirring of battery thick liquids and in the stirring that it is quick controllable to the internal environment of stirred tank. The utility model is suitable for a use during the stirring of positive negative high solid content thick liquids of lithium cell for the internal stirring environment of monitor control stirred tank.

Description

High solid content thick liquids agitating unit of positive negative pole of lithium cell

Technical Field

The utility model belongs to the technical field of lithium battery slurry stirring, specifically speaking are high solid content thick liquids agitating unit of positive negative pole of lithium cell.

Background

In the production process of the lithium battery, stirring of positive and negative electrode slurry is the basis for determining the subsequent process, the solid content of the positive electrode slurry is generally not higher than 70% -75% at the present stage, and because the slurry is easy to adsorb water in the air and has strict requirements on the water content in the slurry, the environment in the slurry stirring process needs to be strictly controlled, so that the preparation of the lithium battery slurry meets the production and use requirements. At present, in order to ensure that the feeding into the stirring kettle body and the stirring environment in the stirring kettle body meet the stirring requirement, a mode of controlling the large environment of the whole workshop is generally adopted, although the mode can meet certain stirring requirement to a certain extent, the control requirements on temperature, humidity and pressure in the large environment of a production workshop are very strict, the investment and use cost are very high, the rapid controllability on the stirring environment in the stirring kettle body is poor, and the secondary pollution to slurry is easily caused.

In addition, present lithium battery slurry mixer is mostly vertical rabbling mechanism, and the (mixing) shaft sets up along vertical direction promptly, and the material receives the direct stirring strength that drops downwards and can not fully receive the stirring rake of action of gravity when the (mixing) shaft stirring, influences the homogeneity of slurry mixing. In addition, in order to provide sufficient stirring power, the stirring shaft and the stirring paddle in the vertical stirring mechanism mostly adopt a cantilever support structure, and the power mechanism, the stirring shaft and the stirring paddle all need to be large enough in size, so that the requirement on the strength of the cantilever support is high.

SUMMERY OF THE UTILITY MODEL

For solving exist among the prior art more than not enough, the utility model aims at providing a positive high solid content thick liquids agitating unit of lithium cell to reach before the stirring of battery thick liquids and in the stirring to the internal environment quick controllable purpose of stirred tank.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a positive negative high solid content thick liquids agitating unit of lithium cell, is used for stirring the horizontal rabbling mechanism of thick liquids including the stirred tank body that is equipped with feed inlet and discharge gate and installing on the stirred tank body, stirred tank internal fixation has pressure sensor, temperature sensor, humidity transducer and is used for the heating mechanism for the internal portion heating of stirred tank, and protective gas is imported and exported on stirred tank body upper portion.

As the utility model discloses a injecte, the rabbling mechanism is for having two planetary drive's horizontal double row star agitators.

As another kind of the utility model is injectd, stirred tank body lateral wall is sealed to be fixed with the box assembly, and horizontal double planet agitator fixed connection is in the box assembly, and the stirring rake and the deconcentrator of horizontal double planet agitator extend to stirred tank internally.

As the utility model discloses a further inject, fixedly connected with vibrator in the box assembly, fixedly connected with is used for making the box assembly drive horizontal rabbling mechanism and produces the vibrator of vibration clear material in the box assembly.

As the utility model discloses a further inject again, install the rabbling mechanism that two sets of symmetries set up on the stirred tank body, each rabbling mechanism corresponds and installs in a box assembly.

As the utility model discloses a third kind is injectd, and pressure sensor and humidity transducer all fix on the internal side inner wall of stirred tank body upside, and heating mechanism fixes on the internal side inner wall of stirred tank body downside.

Since the technical scheme is adopted, compared with the prior art, the utility model, the beneficial effect who gains is:

(1) the utility model discloses at the internal horizontal rabbling mechanism that sets up of stirred tank, through the stirring rake along the horizontal direction installation, make the stirring rake be certain angle and stir the material along axial, radial circulation, make the rapid misce bene of material. For vertical compounding mechanism among the prior art, horizontal rabbling mechanism power pack drives the driving shaft rotatory, makes the stirring rake mix the stirring at the thick liquids mixing process more abundant with the thick liquids of the different particle sizes that receive gravity to drop, and the mixing effect is more even, guarantees mixed ejection of compact quality.

(2) The utility model discloses a horizontal double planetary stirrer, can provide bigger stirring power, under the same power condition of same power, required support mechanical strength is littleer.

(3) Environmental control has a high impact on the quality of the slurry during the slurry agitation process. The utility model discloses a set up the vibrator, can pass through high-frequency vibration stirring rake during the stirring to make the thick liquids of adhesion on the stirring rake automatically slide, realized the self-cleaning of high solid content thick liquids stirring under sealed environment, effectively clear away the high viscosity thick liquids of adhesion on the stirring rake after the stirring is accomplished; the manual cleaning mode of opening the stirring kettle body is not needed, the preparation of high-solid-content slurry without opening the stirring kettle body is really realized, and the control of a small closed environment in the whole process of slurry preparation is realized by means of the sensors, the gas inlet and outlet and the heating mechanism arranged on the stirring kettle body.

(4) The utility model discloses a set up pressure sensor at the internal portion of stirred tank, humidity transducer, a weighing sensor and a temperature sensor, combine the protective gas who sets up to import and export and heating mechanism, can enough monitor the internal environment of predetermineeing of stirred tank before the stirring, control, can carry out real-time supervision to the internal stirring environment of stirred tank at the stirring in-process again, control, thereby the speed of stirring environment in the lithium cell thick liquids preparation process has been guaranteed, controllable, the secondary pollution of thick liquids has effectively been prevented, for the mode of the big environment of control job shop among the prior art, the quality of thick liquids has both been guaranteed, and the production cost is reduced, high durability and convenient use, and convenient operation.

The utility model is suitable for a use during the stirring of positive negative high solid content thick liquids of lithium cell for the internal stirring environment of monitor control stirred tank.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

In the figure: 1. a feed inlet; 2. a discharge port; 3. a stirred tank body; 4. a pressure sensor; 5. a temperature sensor; 6. a humidity sensor; 7. a heating mechanism; 8. a protective gas inlet and outlet; 9. a horizontal double planetary stirrer; 10. a box body assembly; 11. a vibrator; 12. an axis of rotation.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It is to be understood that the preferred embodiments described herein are for purposes of illustration and understanding only and are not intended to limit the invention.

Embodiment 1 high solid content thick liquids agitating unit of positive negative pole of lithium cell

As shown in fig. 1, the present embodiment includes a stirring tank body 3, a tank assembly 10, and a horizontal stirring mechanism.

The upper part of the stirring kettle body 3 is provided with a feeding hole 1, and the lower part is provided with a discharging hole 2. A pressure sensor 4, a temperature sensor 5, a humidity sensor 6 and a heating mechanism 7 are fixed in the stirring kettle body 3, and a protective gas inlet and outlet 8 is formed in the upper part of the stirring kettle body 3. The pressure sensor 4 is fixed on the inner wall of the upper side of the stirring kettle body 3 and used for monitoring the air pressure in the stirring kettle body 3; temperature sensor 5 is used for monitoring the temperature in the stirred tank body 3, and humidity sensor 6 is fixed and is used for monitoring the humidity in the stirred tank body 3 on the stirred tank body 3 downside inner wall. Heating mechanism 7 is fixed and is used for heating the 3 internal environment of stirred tank on the 3 downside inner walls of stirred tank, and heating mechanism 7 adopts the heating structure who is used for lithium cell thick liquids stirred tank 3 among the prior art, can be for the hot and cold water heat transfer mode. The protective gas inlet and outlet 8 is used for controlling the pressure of the gas in the stirring kettle body 3.

The horizontal stirring mechanism is used for stirring the slurry in the stirring kettle body 3, and the axis of the stirring paddle of the horizontal stirring mechanism is arranged along the horizontal direction. The stirring mechanism adopts a horizontal double-planet stirrer 9 in the prior art. Horizontal double planetary agitator 9 can include power component, driving shaft, axis of rotation 12, planetary drive subassembly, stirring rake and dispersion impeller, and horizontal double planetary agitator 9's driving shaft extends along the horizontal direction, and power component power take off end links to each other with the driving shaft is fixed, and the driving shaft passes through planetary drive subassembly transmission with the axis of rotation and links to each other, is fixed with stirring rake and dispersion impeller in driving shaft and the axis of rotation. The driving shaft is driven by the power assembly to drive the rotating shaft through the planetary transmission assembly, so that the stirring paddle stirs the slurry, and meanwhile, the dispersion disc achieves high-speed dispersion on the slurry. Two groups of symmetrically arranged horizontal stirring mechanisms are arranged on the stirring kettle body 3, each horizontal stirring mechanism is correspondingly arranged in one box body assembly 10, and each horizontal stirring mechanism is arranged on the stirring kettle body 3 through the box body assembly 10.

The box body assembly 10 is sealed and fixed on the side wall of the stirring kettle body 3 through common sealing modes such as shaft end oil seal, labyrinth seal and the like, the horizontal double-planet stirrer 9 is fixedly connected in the box body assembly 10, and a stirring paddle and a disperser of the horizontal double-planet stirrer extend into the stirring kettle body 3. The vibrator 11 is fixedly connected in the box assembly 10, the vibrator 11 adopts a mode of a motor and an eccentric wheel in the prior art, the eccentric wheel is driven by the motor to rotate, and the vibrator 11 drives the box assembly 10 and a stirring paddle and a dispersion disc in the box assembly to vibrate together so as to shake slurry adhered to the stirring paddle down.

Example 2 method for stirring slurry with high positive and negative solid contents for lithium battery

The embodiment is a method for stirring slurry with high positive and negative solid contents in a lithium battery by using the device for stirring slurry with high positive and negative solid contents in a lithium battery in the embodiment 1, and the method comprises the following steps:

s1, adjusting the internal environment of the stirring kettle body 3

The pressure sensor 4, the temperature sensor 5 and the humidity sensor 6 in the stirring kettle body 3 are used for monitoring the air pressure, the temperature and the humidity in the stirring kettle body 3, and the protective gas inlet and outlet 8 at the upper part of the stirring kettle body 3 are controlled to convey the protective gas in the stirring kettle body 3 and the heating temperature of the heating mechanism 7 in the stirring kettle body 3, so that the environment in the stirring kettle body 3 meets the preset environment requirement before stirring.

S2, stirring

Slurry is added into the stirring kettle body 3 from the feeding hole 1, so that the inside of the stirring kettle body 3 is in a closed state; and then, the horizontal double-planet stirrer 9 is used for stirring the slurry in the stirring kettle body 3, and in the stirring process, the pressure sensor 4, the temperature sensor 5 and the humidity sensor 6 in the stirring kettle body 3 are used for monitoring the air pressure, the temperature and the humidity in the stirring kettle body, and the conveying of the protective gas from the protective gas inlet and outlet 8 at the upper part of the stirring kettle body 3 to the protective gas in the stirring kettle body and the heating temperature of the heating mechanism 7 in the stirring kettle body are controlled, so that the stirring environment in the stirring kettle body 3 meets the stirring requirement.

S3, discharging

After the stirring is finished, the vibrator 11 drives the stirring paddle of the horizontal double-planet stirrer 9 to vibrate, the slurry adhered to the stirring paddle is vibrated to fall, and then the slurry in the stirring kettle body 3 is output from the discharge hole 2.

It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the above-mentioned embodiments, it will be apparent to those skilled in the art that modifications can be made to the technical solutions described in the above-mentioned embodiments, or some technical features can be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a high solid content thick liquids agitating unit of positive negative pole of lithium cell which characterized in that: including the stirred tank body that is equipped with feed inlet and discharge gate and install the horizontal rabbling mechanism that is used for stirring thick liquids on the stirred tank body, stirred tank internal fixation has pressure sensor, temperature sensor, humidity transducer and is used for the heating mechanism for stirred tank internal heating, and protective gas inlet and outlet has been seted up on stirred tank body upper portion.

2. The high positive and negative solid content slurry stirring device of the lithium battery as claimed in claim 1, wherein: the stirring mechanism is a horizontal double-planet stirrer with double-planet transmission.

3. The stirring device for slurry with high positive and negative solid contents for lithium batteries according to claim 1 or 2, characterized in that: the side wall of the stirring kettle body is hermetically fixed with a box body assembly, the horizontal stirring mechanism is fixedly connected in the box body assembly, and the stirring paddle and the disperser of the horizontal double-planet stirrer extend into the stirring kettle body.

4. The high positive and negative solid content slurry stirring device of the lithium battery as claimed in claim 3, wherein: the box body assembly is internally and fixedly connected with a vibrator which is used for driving the horizontal stirring mechanism to vibrate and clear materials.

5. The high positive and negative solid content slurry stirring device of the lithium battery as claimed in claim 4, wherein: two sets of stirring mechanisms symmetrically arranged are installed on the stirring kettle body, and each stirring mechanism is correspondingly installed in one box body assembly.

6. The stirring device for slurry with high positive and negative solid contents for lithium batteries according to any one of claims 1 to 2 and 4 to 5, characterized in that: pressure sensor and humidity transducer all fix on stirred tank body upside inner wall, and heating mechanism fixes on stirred tank body downside inner wall.

Images