CN219209741U

CN219209741U - Circulation pulping system for battery

Info

Publication number: CN219209741U
Application number: CN202320174600.4U
Authority: CN
Inventors: 李进; 胡毅铭; 余招宇
Original assignee: Rept Battero Energy Co Ltd
Current assignee: Rept Battero Energy Co Ltd
Priority date: 2023-01-13
Filing date: 2023-01-13
Publication date: 2023-06-20
Anticipated expiration: 2033-01-13

Abstract

The utility model provides a battery circulation pulping system, which comprises a circulation tank and a dispersing machine, wherein the circulation tank comprises a solvent inlet, a powder inlet, a dispersing motor, a dispersing disc, a revolution motor, a revolution paddle, a slurry outlet and a slurry inlet, wherein the revolution motor and the dispersing motor are both arranged outside the circulation tank, the revolution paddle is positioned on a central axis in the circulation tank, the revolution paddle is in transmission connection with the revolution motor, the dispersing disc is positioned in the circulation tank, the dispersing disc is positioned on the peripheral side of the revolution paddle, and the dispersing disc is in transmission connection with the dispersing motor; the dispersing machine comprises a feed inlet and a discharge outlet, the slurry outlet is communicated with the feed inlet, and the discharge outlet is communicated with the slurry inlet. Through setting up public rotating oar, dispersion impeller, solvent import and powder import in the circulation jar, dispersion impeller and public rotating oar stir solvent and powder in the circulation jar and cut in advance, and the thick liquids after the back is cut in advance are dispersed to the cooperation dispenser and are sheared, and dispersion efficiency is low high, helps improving and reduces cycle time to help improving pulping efficiency.

Description

Circulation pulping system for battery

Technical Field

The utility model relates to the technical field of battery production and manufacturing, in particular to a circulating pulping system for batteries.

Background

In the whole manufacturing process of the lithium ion battery, the pulping process plays an important role. Current pulping processes include a loading system and a battery recycle pulping system.

And (3) a feeding system: the main material is weighed through the wagon balance and conveyed to the upper portion of the feeding port, and the main material falls to the high mixing bin through ton packaging gravity after the belt is removed. The auxiliary materials are manually unpacked and then conveyed to a storage metering bin through a suction gun under negative pressure, and are conveyed to an auxiliary material storage bin and then to a high mixing bin through high-precision metering.

Circulation pulping system for battery: the solvent and the conductive liquid are conveyed into the first circulating tank after being precisely measured by a metering scale on the storage tank. The solvent and the conductive liquid in the first circulation tank are conveyed to the mixing and dispersing machine and then returned to the first circulation tank for continuous circulation. The evenly mixed powder enters a high-mixing dispersing machine through an electric stop valve, a rotary feeding valve and a feeding motor, and is mixed, dispersed and discharged with continuously circulated solvent and conductive agent under the rotation of the high-speed dispersing motor.

Along with the gradual input of the powder, the solid content of the slurry is gradually increased until the solid content of the slurry reaches a design value after all the powder is input, and the viscosity of the slurry reaches the maximum at the moment. After the powder is put into the system, the slurry is continuously circulated in the system at a high speed, the aggregate in the slurry is further opened, the viscosity of the slurry is reduced, and the fineness and the viscosity of the slurry meet the design requirements.

The prior art battery recycle pulping system has the following defects that the prior art battery recycle pulping system has to be improved:

1. only by means of a mixing high-speed dispersing machine, long circulation time is needed, and dispersing efficiency is low.

2. The feeding motor of the high-speed dispersing machine is easy to generate blocking and returning phenomena along with the increase of viscosity and solid content.

3. The powder has short infiltration area in a high-speed dispersion machine, the powder infiltration effect is poor, and more solvents are needed to be added to relieve the phenomenon.

Disclosure of Invention

In view of the drawbacks of the prior art, an object of the present utility model is to provide a cyclic pulping system for a battery.

The utility model provides a battery circulation pulping system, which comprises a circulation tank and a dispersing machine, wherein the circulation tank comprises a solvent inlet, a powder inlet, a dispersing motor, a dispersing disc, a revolution motor, a revolution paddle, a slurry outlet and a slurry inlet, wherein the revolution motor and the dispersing motor are both arranged outside the circulation tank, the revolution paddle is positioned on a central axis in the circulation tank, the revolution paddle is in transmission connection with the revolution motor, the dispersing disc is arranged in the circulation tank, and is positioned on the periphery of the revolution paddle, and the dispersing disc is in transmission connection with the dispersing motor; the dispersing machine comprises a feed inlet and a discharge outlet, wherein the slurry outlet is communicated with the feed inlet, and the discharge outlet is communicated with the slurry inlet.

Preferably, the circulation tank comprises at least two, the slurry outlet of any circulation tank is communicated with the feed inlet, and the slurry inlet of any circulation tank is communicated with the discharge outlet.

Preferably, a double screw pump is arranged between the slurry outlet of the circulating tank and the feed inlet of the dispersing machine.

Preferably, the feeding port and the discharging port of the dispersing machine are both provided with electric stop valves; and a discharging pipeline is also communicated with a pipeline for communicating the double-screw pump with the feeding port of the dispersing machine.

Preferably, the powder inlet of the circulating tank is communicated with a powder feeding pipeline at one end far away from the circulating tank, and a rotary feeding valve is arranged on the powder feeding pipeline.

Preferably, an electric stop valve is arranged at the slurry inlet of the circulating tank.

Preferably, a liquid level sensor is arranged on the circulating tank, and an observation window is arranged at the top of the circulating tank.

Preferably, the outer wall of the circulating tank is provided with a water cooling device, the water cooling device comprises a cooling water inlet pipeline, a water cooling wall and a cooling water outlet pipeline, the water cooling wall is attached to the outer wall of the circulating tank, the cooling water inlet pipeline is communicated with the lower side of the water cooling wall, and the cooling water outlet pipeline is communicated with the upper side of the water cooling wall.

Preferably, two groups of dispersing discs are uniformly distributed on the peripheral side of the revolution paddle, and the two groups of dispersing discs are symmetrically arranged at 180 degrees.

Preferably, a solvent feed pipeline is communicated with one end of the solvent inlet of the circulating tank far away from the circulating tank, and the solvent feed pipeline is communicated with a storage tank for storing solvent.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the public rotating paddles, the dispersing disc, the solvent inlet and the powder inlet are arranged in the circulating tank, the dispersing disc and the public rotating paddles stir the solvent and the powder in the circulating tank for pre-shearing, and then the pre-sheared slurry is subjected to dispersion shearing by matching with the dispersing machine, so that the dispersing efficiency is low, the circulating time is reduced, and the pulping efficiency is improved.

2. According to the utility model, the slurry in the circulating tank is conveyed to the dispersing machine or the discharging pipeline by the cooperation of the double-screw pump and the electric stop valve, so that the automation degree of the circulating pulping system for the battery is improved, and the pulping efficiency of the circulating pulping system for the battery is improved.

3. According to the utility model, by arranging the multiple circulating tanks, a worker can select slurry to circulate between one circulating tank and the dispersing machine according to requirements, or slurry circulates between the multiple circulating tanks and the dispersing machine, so that the applicability of the circulating pulping system for the battery is improved.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

fig. 1 is a schematic diagram of the overall structure of a circulating pulping system for a battery, which mainly shows the utility model.

Reference numerals:

circulation tank 1 dispersion disk 31

Solvent inlet 11 revolution motor 4

Powder inlet 12 revolution paddle 41

Slurry outlet 13 rotary feed valve 5

Slurry inlet 14 water cooling device 6

Cooling water inlet pipeline 61 of liquid level sensor 15

Water wall 62 of observation window 16

Cooling water outlet pipeline 63 of disperser 2

Feed inlet 21 twin-screw pump 7

Electric stop valve 8 of discharge hole 22

Discharge pipeline 9 of dispersion motor 3

Detailed Description

The present utility model will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present utility model.

In the present utility model, the "height direction" refers to the "Y" direction in fig. 1, the top of the circulation tank 1 refers to the top of the circulation tank 1 in the "Y" direction, the lower side of the water wall 62 refers to the lower side of the water wall 62 in the "Y" direction, and the upper side of the water wall 62 refers to the upper side of the water wall 62 in the "Y" direction.

Example 1

As shown in fig. 1, according to the present utility model, there is provided a circulation pulping system for a battery, comprising a circulation tank 1 and a dispersing machine 2, wherein the circulation tank 1 comprises a solvent inlet 11, a powder inlet 12, a dispersing motor 3, a dispersing disc 31, a revolution motor 4, a revolution paddle 41, a slurry outlet 13 and a slurry inlet 14, both the revolution motor 4 and the dispersing motor 3 are arranged outside the circulation tank 1, the revolution paddle 41 is positioned on a central axis inside the circulation tank 1, the revolution paddle 41 is in transmission connection with the revolution motor 4, the dispersing disc 31 is arranged inside the circulation tank 1, and the dispersing disc 31 is positioned on a peripheral side of the revolution paddle 41, and the dispersing disc 31 is in transmission connection with the dispersing motor 3. The dispersing machine 2 comprises a feed inlet 21 and a discharge outlet 22, the slurry outlet 13 is communicated with the feed inlet 21, and the discharge outlet 22 is communicated with the slurry inlet 14.

It should be noted that both the dispersing motor 3 and the revolution motor 4 of the present application may employ a motor having a rotational output in the related art. Here, the dispersing motor 3 and the revolution motor 4 of the present application may be identical in structure but different in function. The functional differences between the dispersing motor 3 and the revolution motor 4 are mainly represented by: the dispersion motor 3 is connected with the dispersion disc 31 in a transmission way and drives the dispersion disc 31 to rotate. The revolution motor 4 is in transmission connection with the revolution paddle 41 and drives the revolution paddle 41 to rotate.

When the dispersing machine is used, a worker can input a solvent and a conductive liquid into the circulating tank 1 through the solvent inlet 11, input powder into the circulating tank 1 through the powder inlet 12, moisten the powder, drive the revolution paddle 41 through the revolution motor 4, drive the dispersing disc 31 to conduct high-speed pre-shearing through the dispersing motor 3, accelerate aggregate dispersion in the moistening process, enable viscosity of pre-dispersed slurry to be low, then convey the slurry in the circulating tank 1 into the dispersing machine 2 through the slurry outlet 13 and the feeding hole 21, and enable the dispersing machine 2 to conduct secondary main shearing on the slurry, so that dispersing efficiency can be improved.

Specifically, the circulation tank 1 is a closed tank body capable of withstanding a certain internal pressure. The powder inlet 12 of the circulation tank 1 is communicated with a powder feeding pipeline at one end far away from the circulation tank 1, a rotary feeding valve 5 is arranged on the powder feeding pipeline, a stop valve and a feeding motor are further arranged on the powder feeding pipeline, the rotary feeding valve 5 and the stop valve are opened, and powder can be put into the circulation tank 1 through the powder inlet 12 by opening the feeding motor.

The solvent inlet 11 of the circulation tank 1 is communicated with a solvent feeding pipeline at one end far away from the circulation tank 1, and the solvent feeding pipeline is communicated with a storage tank for storing solvent. In actual use, the solvent and the conductive liquid are respectively fed into the storage tank through the pneumatic diaphragm pump, and are conveyed into the circulating tank 1 through the solvent inlet 11 after being precisely measured by the metering scale on the storage tank.

Two groups of dispersing discs 31 are uniformly distributed on the peripheral side of the revolution paddle 41, and the two groups of dispersing discs 31 are symmetrically arranged at 180 degrees. One possible implementation is: any group all includes three dispersion plate 31, and three dispersion plate 31 coaxial coupling is on a drive shaft, and the coaxial fixed connection of drive shaft and corresponding dispersion motor 3 to realize that three dispersion plate 31 is connected with same dispersion motor 3 transmission, dispersion motor 3 start can drive three dispersion plate 31 simultaneously and rotate, and then can improve shearing efficiency.

It should be noted that two dispersion motors 3 and one revolution motor 4 may be fixedly installed at the top of the circulation tank 1. The top of the circulation tank 1 refers to the top of the circulation tank 1 in the "Y" direction.

Further, a water cooling device 6 is arranged on the outer wall of the circulation tank 1, the water cooling device 6 comprises a cooling water inlet pipeline 61, a water cooling wall 62 and a cooling water outlet pipeline 63, the water cooling wall 62 is attached to the outer wall of the circulation tank 1, the cooling water inlet pipeline 61 is communicated with the lower side of the water cooling wall 62, and the cooling water outlet pipeline 63 is communicated with the upper side of the water cooling wall 62. The circulation tank 1 is provided with a liquid level sensor 15, and the top of the circulation tank 1 is provided with an observation window 16. The lower side of the water wall 62 refers to the lower side of the water wall 62 in the "Y" direction, and the upper side of the water wall 62 refers to the upper side of the water wall 62 in the "Y" direction.

More specifically, a double screw pump 7 is arranged between the slurry outlet 13 of the circulation tank 1 and the feed inlet 21 of the dispersing machine 2, the feed inlet 21 and the discharge outlet 22 of the dispersing machine 2 are both provided with an electric stop valve 8, and the slurry inlet 14 and the slurry outlet 13 of the circulation tank 1 are both provided with the electric stop valve 8. When the slurry in the circulation tank 1 is required to be put into the dispersing machine 2, the electric stop valve 8 at the slurry outlet 13 of the circulation tank 1 and the electric stop valve 8 at the feeding hole of the dispersing machine 2 are opened, and then the double screw pump 7 is started, so that the slurry in the circulation tank 1 can be put into the dispersing machine 2.

Furthermore, a discharge pipeline 9 is further connected to the pipeline connecting the twin-screw pump 7 and the feed inlet 21 of the dispersing machine 2, a stop valve is arranged on the discharge pipeline 9, and when the fineness and viscosity of the slurry reach the design requirements, the slurry outlet 13 of the circulation tank 1 and the stop valve on the discharge pipeline 9 are opened, and then the twin-screw pump 7 is started, so that the slurry in the circulation tank 1 can be discharged.

Example two

As shown in fig. 1, according to the first embodiment, the circulation pulping system for a battery provided by the utility model, the circulation tanks 1 comprise at least two circulation tanks 1, the structure, the function and the connection structure with a dispersing machine of any circulation tank 1 are the same, the slurry outlet 13 of any circulation tank 1 is communicated with the feed inlet 21, and the slurry inlet 14 of any circulation tank 1 is communicated with the discharge outlet 22.

One possible embodiment is that the circulation tank 1 is provided with two. In actual use, solvent and powder can be firstly put into one circulation tank 1 of the dispersion machine to be pre-sheared, then slurry after pre-shearing is put into the dispersion machine 2, the slurry after shearing by the dispersion machine 2 can enter the one circulation tank 1 of the dispersion machine to be single-circulated, the slurry after shearing by the dispersion machine 2 can also enter two circulation tanks 1 to be double-circulated respectively, the selection can be carried out according to actual design working conditions, and the applicability of the battery circulation pulping system is improved.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present application.

The foregoing describes specific embodiments of the present utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the utility model. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.

Claims

1. The utility model provides a circulation slurrying system for battery, its characterized in that includes circulation jar (1) and dispenser (2), circulation jar (1) include solvent import (11), powder import (12), dispersion motor (3), dispersion dish (31), revolution motor (4), revolution oar (41), thick liquids export (13) and thick liquids import (14), revolution motor (4) and dispersion motor (3) both set up in the outside of circulation jar (1), revolution oar (41) are located the inside axis of circulation jar (1), revolution oar (41) are connected with revolution motor (4) transmission, dispersion dish (31) set up in circulation jar (1) inside, just dispersion dish (31) are located the week side of revolution oar (41), dispersion dish (31) are connected with dispersion motor (3) transmission;

the dispersing machine (2) comprises a feed inlet (21) and a discharge outlet (22), the slurry outlet (13) is communicated with the feed inlet (21), and the discharge outlet (22) is communicated with the slurry inlet (14).

2. The circulating pulping system for a battery according to claim 1, wherein the circulating tanks (1) comprise at least two, the slurry outlet (13) of any one circulating tank (1) is communicated with the feed inlet (21), and the slurry inlet (14) of any one circulating tank (1) is communicated with the discharge outlet (22).

3. The battery circulation pulping system according to claim 1, characterized in that a twin screw pump (7) is arranged between the slurry outlet (13) of the circulation tank (1) and the feed inlet (21) of the disperser (2).

4. A battery circulation pulping system according to claim 3, characterized in that the feed inlet (21) and the discharge outlet (22) of the disperser (2) are provided with electric shut-off valves (8);

and a discharging pipeline (9) is also communicated on the pipeline of the double-screw pump (7) communicated with the feeding port (21) of the dispersing machine (2).

5. The battery recycling pulping system according to claim 1, characterized in that the powder inlet (12) of the recycling tank (1) is connected with a powder feeding pipeline at one end far away from the recycling tank (1), and a rotary feeding valve (5) is arranged on the powder feeding pipeline.

6. The battery recycling pulping system according to claim 1, characterized in that an electric shut-off valve (8) is provided at the slurry inlet (14) of the recycling tank (1).

7. The battery circulation pulping system according to claim 1, characterized in that a liquid level sensor (15) is arranged on the circulation tank (1), and an observation window (16) is arranged at the top of the circulation tank (1).

8. The battery recycling pulping system according to claim 1, wherein a water cooling device (6) is arranged on the outer wall of the recycling tank (1), the water cooling device (6) comprises a cooling water inlet pipeline (61), a water cooling wall (62) and a cooling water outlet pipeline (63), the water cooling wall (62) is attached to the outer wall of the recycling tank (1), the cooling water inlet pipeline (61) is communicated with the lower side of the water cooling wall (62), and the cooling water outlet pipeline (63) is communicated with the upper side of the water cooling wall (62).

9. The battery circulation pulping system according to claim 1, wherein two groups of the dispersion discs (31) are uniformly distributed on the peripheral side of the revolution paddle (41), and the two groups of the dispersion discs (31) are symmetrically arranged at 180 degrees.

10. A battery recycle pulping system according to claim 1, characterized in that the solvent inlet (11) of the recycle tank (1) is connected to a solvent feed line at the end remote from the recycle tank (1), said solvent feed line being connected to a tank for storing the solvent.