CN217473300U

CN217473300U - Lithium ion battery homogenate agitating unit

Info

Publication number: CN217473300U
Application number: CN202221244388.6U
Authority: CN
Inventors: 贺绍辉
Original assignee: Chuneng New Energy Co Ltd
Current assignee: Chuneng New Energy Co Ltd
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2022-09-23
Anticipated expiration: 2032-05-23

Abstract

The utility model relates to a lithium cell homogenate device's technical field, concretely relates to lithium ion battery homogenate agitating unit. Including stirred tank, the stirred tank top is equipped with the feed inlet, and the bottom is equipped with the feed opening, be equipped with transmission shaft, motor in the stirred tank and with the stirring paddle leaf that the transmission shaft linked firmly, stirring paddle leaf includes first stirring paddle leaf, second stirring paddle leaf and third stirring paddle leaf, first stirring paddle leaf with second stirring paddle leaf sets up along transmission shaft length direction is crisscross, first stirring paddle leaf is 90 with second stirring paddle leaf's radial contained angle, third stirring paddle leaf set up in the transmission shaft bottom. The device has special design and arrangement mode for the stirring blades, and improves the slurry mixing effect and mixing speed.

Description

Lithium ion battery homogenate agitating unit

Technical Field

The utility model relates to a lithium cell homogenate device's technical field, concretely relates to lithium ion battery homogenate agitating unit.

Background

Mix stirring operation need be carried out in the homogenate of lithium cell positive/negative pole, and current agitating unit can not carry out abundant mixing with lithium cell positive/negative pole homogenate, and bottom thick liquids dispersion degree of consistency and upper strata are not inconsistent to its lower floor close to for the holistic mixability of thick liquids has certain difference with mobile effect. The fluidity of the slurry which is not fully mixed can be deteriorated, and the viscosity difference of the slurry can be caused by the uneven mixing of the upper layer and the lower layer of the slurry in the stirring kettle, so that the coating effect and the performance of the finished battery are influenced.

In addition, the existing homogenizing device only has a simple stirring function, the stirring kettle needs to be opened when the viscosity of the slurry is tested, the contact time of the slurry and air is prolonged, and the quality of the slurry cannot be guaranteed.

The existing lithium battery homogenizing device generally has two design ideas. One design idea is to use the stirring device commonly used in other industries or slightly change the stirring device on the basis of the design idea, and the design is economical and practical and has wider application; the other design idea is to complicate the stirring device, and the stirring effect is better if a stirring paddle with a special shape, a special stirring mode and the like are designed.

The first design has a general homogenizing and mixing effect, and cannot ensure the mixing effect of slurry with high quality requirements or special requirements (such as viscosity); the second design has the function far beyond the homogenizing effect, excessive performance, too high device cost, high energy consumption and no cost performance.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lithium ion battery homogenate agitating unit to prior art's defect, promoted thick liquids mixing effect and mixing speed.

The utility model discloses a lithium ion battery homogenate agitating unit, including stirred tank, the stirred tank top is equipped with the feed inlet, and the bottom is equipped with the feed opening, be equipped with transmission shaft, motor in the stirred tank and with the stirring paddle leaf that the transmission shaft linked firmly, stirring paddle leaf includes first stirring paddle leaf, second stirring paddle leaf and third stirring paddle leaf, first stirring paddle leaf with second stirring paddle leaf sets up along transmission shaft length direction is crisscross, first stirring paddle leaf is 90 with second stirring paddle leaf's radial contained angle, third stirring paddle leaf set up in the transmission shaft bottom.

It is comparatively preferred, the stirred tank top is equipped with viscosity testing arrangement, viscosity testing arrangement's inlet pipe is connected to the stirred tank middle part, viscosity testing arrangement's discharging pipe is connected to the top of stirred tank.

Preferably, the first stirring blade and the second stirring blade each include at least two groups.

Preferably, each group of the first stirring blades and/or the second stirring blades comprises a pair of blades which form an included angle of 180 degrees with each other, and the blades are horizontal strip-shaped blades.

Preferably, the length of the first stirring blade is greater than that of the second stirring blade.

Preferably, the blades of the third stirring blade are a pair of arc-shaped blades tilted upwards, and the pair of arc-shaped blades mutually form an included angle of 180 degrees.

Preferably, the radial included angle between the third stirring blade and the first stirring blade is 0 °.

Preferably, the first stirring blade, the second stirring blade and the third stirring blade are all hollow structures.

Preferably, the top of the stirring kettle is provided with an air hole communicated with the inside of the stirring kettle and the outside atmosphere.

The beneficial effects of the utility model are that: the device has special design and arrangement mode for the stirring blades, and improves the slurry mixing effect and mixing speed. Through design such as paddle fretwork, bottom arc paddle and paddle mutually perpendicular arrange, the thick liquids demonstrate the motion state of multiple difference when making the stirring, and the thick liquids of different motion states are interfused each other, and the intensive mixing makes thick liquids dispersion degree of consistency, stability and uniformity better. The viscosity of the slurry can be controlled through the viscosity testing device, and the tested slurry can return to the kettle, so that material waste can be avoided. The design of the hollow blade also reduces the weight of the stirring paddle, reduces the energy consumption of the motor and reduces the manufacturing cost of the device.

Drawings

Fig. 1 and 2 are axial sectional views of the present invention in two directions, i.e., a front view and a left view, respectively;

fig. 3 is a top view of the present invention;

fig. 4 is a schematic distribution diagram of the stirring blades of the present invention.

1-a first stirring blade, 2-a second stirring blade, 3-a motor, 4-a feed inlet, 5-an air hole, 6-a viscosity testing device, 7-a transmission shaft, 8-a third stirring blade, 9-a transmission shaft supporting block, 10-a feed opening, 11-a feed pipe, 12-a feed pipe and 13-a stirring kettle.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Example one

Fig. 1 to 3 show a schematic structural diagram of a homogenizing and stirring device for a lithium ion battery according to a preferred embodiment of the present application, and for convenience of description, only the parts related to this embodiment are shown, and detailed descriptions are as follows:

the utility model provides a lithium ion battery homogenate agitating unit, includes stirred tank 13, stirred tank 13 top is equipped with feed inlet 14, and the bottom is equipped with feed opening 10, be equipped with transmission shaft 7, motor 3 in stirred tank 13 and with the stirring paddle leaf that transmission shaft 7 linked firmly, motor 3 can drive transmission shaft 7 rotatory. The transmission shaft 7 is provided with a transmission shaft supporting block 9 for supporting the transmission shaft 7 and enabling the transmission shaft to stably rotate under the driving of a motor. Stirring paddle leaf includes first stirring paddle leaf 1, second stirring paddle leaf 2 and third stirring paddle leaf 8, first stirring paddle leaf 1 with second stirring paddle leaf 2 sets up along 7 length direction of transmission shaft crisscross, first stirring paddle leaf 1 is 90 with the radial contained angle of second stirring paddle leaf 2, third stirring paddle leaf 8 set up in 7 bottoms of transmission shaft.

The top of stirred tank 13 is equipped with viscosity testing device 6, viscosity testing device 6's inlet pipe 12 is connected to stirred tank 13 middle part, viscosity testing device 6's discharging pipe 11 is connected to stirred tank 13's top. Wherein, viscosity testing device 6 can adopt the viscosity tester of purchasing on the market, through set up the suction pump at the viscosity tester front end, can pass through in the material of inlet pipe 12 pump income viscosity tester in stirred tank 13 to in discharging pipe 11 returns stirred tank 13 after the test. The feeding pipe 12 is provided with a valve which is closed when the viscosity test is not carried out, so that the material in the stirring kettle 13 is prevented from overflowing to the feeding pipe 12.

The first stirring paddle 1 and the second stirring paddle 2 each include at least two groups. Every first stirring paddle 1 of group and/or second stirring paddle 2 all include a pair of mutual 180 contained angles and be located the blade of same height, the blade is horizontal strip blade. The height intervals between the first stirring paddle 1 and the second stirring paddle 2 in each group are consistent.

The length of the first stirring paddle 1 is greater than that of the second stirring paddle 2.

The blades of the third stirring paddle 8 are a pair of arc-shaped blades which are tilted upwards, and the arc-shaped blades mutually form an included angle of 180 degrees. The horizontal extension length of the arc-shaped blade is larger than that of the first stirring blade 1 and the second stirring blade 2. The radial included angle between the third stirring blade 8 and the first stirring blade 1 is 0 degree.

The first stirring blade 1, the second stirring blade 2 and the third stirring blade 8 are all hollow structures.

And the top of the stirring kettle 13 is provided with an air hole 5 communicated with the inside of the stirring kettle 13 and the outside atmosphere.

The working process of the device is as follows:

the material gets into stirred tank 13 through feed inlet 4 inside, and the cauldron interior waste gas passes through bleeder vent 5 and discharges, opens motor 3 after, drives transmission shaft 7 rotatory, and transmission shaft 7 drives three kinds of stirring paddle leaf rotations, the interior thick liquids of beginning stirred tank. The different sizes and shapes of the first stirring paddle 1, the second stirring paddle 2 and the third stirring paddle 8 enable the slurry to be in 3 different motion states when being added and held by the stirring force of the 3 paddles, and the slurries in the different motion states are mutually blended and mixed. The slurry is always uniformly distributed in motion during stirring due to the vertical distribution of the long and short blades (the first stirring blade 1 and the second stirring blade 2); when the third stirring paddle blade 8 close to the bottom rotates, the bottom moves upwards close to the central slurry due to pressure difference, and the bottom moves downwards close to the slurry on the kettle wall, so that the dispersion uniformity difference of the bottom slurry and the upper layer slurry is reduced. After stirring for a certain period of time, carry out viscosity detection through viscosity testing arrangement 6, the material after having surveyed the viscosity can return to stirred tank 13 in through viscosity testing arrangement's unloading pipe, has avoided the thick liquid material extravagant. After the viscosity test is passed, the coating is prepared by discharging through a discharging port 10.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present application, and they should be construed as being included in the present application.

Claims

1. The utility model provides a lithium ion battery homogenate agitating unit, includes stirred tank (13), stirred tank (13) top is equipped with feed inlet (14), and the bottom is equipped with feed opening (10), be equipped with transmission shaft (7), motor (3) in stirred tank (13) and with the stirring paddle leaf that transmission shaft (7) linked firmly, its characterized in that: stirring paddle leaf includes first stirring paddle leaf (1), second stirring paddle leaf (2) and third stirring paddle leaf (8), first stirring paddle leaf (1) with second stirring paddle leaf (2) sets up along transmission shaft (7) length direction is crisscross, the radial contained angle of first stirring paddle leaf (1) and second stirring paddle leaf (2) is 90, third stirring paddle leaf (8) set up in transmission shaft (7) bottom, stirred tank (13) top is equipped with viscosity testing device (6), inlet pipe (12) of viscosity testing device (6) are connected to stirred tank (13) middle part, discharging pipe (11) of viscosity testing device (6) are connected to the top of stirred tank (13).

2. The lithium ion battery homogenizing and stirring device according to claim 1, characterized in that: the first stirring paddle (1) and the second stirring paddle (2) at least comprise two groups.

3. The lithium ion battery homogenizing and stirring device according to claim 2, characterized in that: every first stirring paddle (1) of group and/or second stirring paddle (2) all include a pair of blade that is 180 contained angles each other, the blade is horizontal strip blade.

4. The lithium ion battery homogenizing and stirring device according to claim 1, characterized in that: the length of the first stirring paddle (1) is larger than that of the second stirring paddle (2).

5. The lithium ion battery homogenizing and stirring device according to claim 1, characterized in that: the blades of the third stirring paddle (8) are a pair of arc-shaped blades which are tilted upwards, and the arc-shaped blades mutually form an included angle of 180 degrees.

6. The lithium ion battery homogenizing and stirring device according to claim 5, characterized in that: the radial included angle between the third stirring paddle (8) and the first stirring paddle (1) is 0 degree.

7. The lithium ion battery homogenizing and stirring device according to claim 1, characterized in that: the first stirring blade (1), the second stirring blade (2) and the third stirring blade (8) are all of hollow structures.

8. The lithium ion battery homogenizing and stirring device according to claim 1, characterized in that: and the top of the stirring kettle (13) is provided with an air vent (5) communicated with the inside of the stirring kettle (13) and the outside atmosphere.