CN-224221172-U - Slurry stirring equipment

CN224221172UCN 224221172 UCN224221172 UCN 224221172UCN-224221172-U

Abstract

The application discloses slurry stirring equipment which comprises a tank body, a stirring paddle and a driving piece, wherein the tank body comprises a stirring space, a feeding hole and a discharging hole, the stirring paddle is arranged in the stirring space and comprises a stirring shaft, a stirring frame, a first propeller blade and a second propeller blade, the stirring shaft is arranged along the height direction of the tank body, the stirring frame is connected to the stirring shaft and synchronously rotates along with the stirring shaft, the first propeller blade and the second propeller blade are respectively connected to the stirring frame, the stirring diameter of the first propeller blade is larger than that of the second propeller blade, the driving piece comprises a driving shaft in transmission connection with the stirring shaft, when the driving shaft rotates along the first direction, the slurry moves from bottom to top, when the driving shaft rotates along the second direction, the slurry moves from top to bottom, the fluidity of the slurry is improved, the slurry retention condition is reduced, and the problem of drying of the slurry caused by slurry retention is reduced.

Inventors

HE ZHIYONG
BU JING
LIU JIAN
ZHANG YIHUAN
LI JINBAO

Assignees

江苏时代新能源科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250226

Claims (13)

1. A slurry stirring apparatus, characterized in that the slurry stirring apparatus comprises: The tank body comprises a stirring space, a feeding port and a discharging port, wherein the feeding port and the discharging port are respectively communicated with the stirring space; The stirring paddle comprises a stirring shaft, a stirring frame, a first propeller blade and a second propeller blade, wherein the stirring frame is connected to the stirring shaft and rotates synchronously with the stirring shaft, the first propeller blade and the second propeller blade are respectively connected to the stirring frame, the first propeller blade and the second propeller blade are respectively arranged around the stirring shaft, the stirring diameter of the first propeller blade is larger than the stirring diameter of the second propeller blade along the radial direction of the stirring shaft, the distance between the stirring frame and the inner bottom surface of the stirring space is between 0 and 2 cm along the axial direction of the stirring shaft, and the minimum distance between the first propeller blade and the inner peripheral wall of the stirring space is between 0 and 2 cm along the radial direction of the stirring shaft; The driving piece is arranged outside the stirring space, the driving piece comprises a driving shaft which is in transmission connection with the stirring shaft, the driving shaft can rotate in a first direction and a second direction opposite to the first direction, when the driving shaft rotates in the first direction, the first propeller blade and the second propeller blade can drive slurry to move from bottom to top, and when the driving shaft rotates in the second direction, the first propeller blade and the second propeller blade can drive slurry to move from top to bottom.
2. The slurry stirring apparatus of claim 1, wherein the stirring frame comprises: The first connecting rod is connected to the stirring shaft and is arranged at an angle with the stirring shaft, and two ends of the first connecting rod respectively protrude out of the stirring shaft along the radial direction of the stirring shaft; The two second connecting rods are respectively connected to the first connecting rods in an angle mode, the two second connecting rods are located on two opposite sides of the stirring shaft in the radial direction of the stirring shaft, the first propeller blades comprise first connecting portions and second connecting portions which are oppositely arranged, the first connecting portions are connected to one second connecting rod, the second connecting portions are connected to the other second connecting rod, the second connecting portions are arranged along the axial direction of the stirring shaft, and the first connecting portions and the second connecting portions are arranged at intervals.
3. The slurry stirring apparatus of claim 2, wherein the first link is connected to a bottom end of the stirring shaft and is disposed perpendicular to the stirring shaft, and the first link is disposed symmetrically with respect to the stirring shaft.
4. A slurry stirring apparatus as set forth in claim 3 wherein said stirring shaft and two of said second links are provided on the same side of said first link, and wherein said two of said second links are respectively parallel to said stirring shaft.
5. The slurry stirring apparatus of claim 4, wherein the first screw blade is a first plate-like member including a first surface and a second surface which are disposed opposite to each other, the first surface and the second surface being respectively connected to the two second links so that the first plate-like member forms a spiral structure, a portion of the first screw blade between the first connection portion and the second connection portion being disposed to protrude toward one side of an inner peripheral wall of the stirring space, the first screw blade having a first projection on an inner bottom surface of the stirring space, the first projection being a first semicircular ring structure.
6. A slurry stirring apparatus as set forth in claim 5 wherein said first screw blades are two in number, two of said first screw blades are connected on opposite sides of said second link in a radial direction of said stirring shaft, and said first connecting portion of one of said first screw blades is connected on a different one of said second links from said first connecting portion of the other of said first screw blades.
7. A slurry stirring device as set forth in claim 3 wherein said stirring frame further comprises a third link connected to said stirring shaft and disposed at an angle to said stirring shaft, said third link being disposed above said first link with a spacing, both ends of said third link being disposed so as to protrude from said stirring shaft in a radial direction of said stirring shaft, respectively, said second propeller blade comprising oppositely disposed first and second portions, one of said first and second portions being connected to a portion of said first link protruding from said stirring shaft, and the other of said first and second portions being connected to a portion of said third link protruding from said stirring shaft; The first part and the second part are positioned on two opposite sides of the stirring shaft along the radial direction of the stirring shaft, the first part and the second part are arranged at intervals along the axial direction of the stirring shaft, the third connecting rod is vertically connected to the stirring shaft, and the third connecting rod is symmetrically arranged relative to the stirring shaft.
8. The slurry stirring apparatus of claim 7, wherein the second screw blade is a second plate-like member including a first face and a second face disposed opposite to each other, one of the first face and the second face being connected to a portion of the first link protruding from the stirring shaft, the other of the first face and the second face being connected to a portion of the third link protruding from the stirring shaft, such that the second plate-like member forms a spiral structure, a portion of the second screw blade between the first portion and the second portion being provided to protrude toward one side of an inner peripheral wall of the stirring space, the second screw blade having a second projection on an inner bottom surface of the stirring space, the second projection being a second semi-circular ring structure.
9. The slurry stirring apparatus of claim 8, wherein the number of said second propeller blades is two, two of said second propeller blades being connected to opposite sides of said third link in a radial direction of said stirring shaft, said first portion of one of said second propeller blades being disposed on opposite sides of said stirring shaft from said first portion of the other of said second propeller blades in a radial direction of said stirring shaft.
10. The slurry stirring device of any one of claims 1 to 9, wherein the stirring space includes a lowest liquid level, the lowest liquid level is disposed flush with a top of the stirring frame in an axial direction of the stirring shaft, and a ratio of the lowest liquid level to a height of the stirring space is in a range of 0.6 to 0.8.
11. A slurry stirring device as set forth in claim 10, wherein a ratio of the lowest liquid level to a height of the stirring space in an axial direction of the stirring shaft is in a range of 0.6 to equal to 0.7.
12. A slurry stirring device according to any one of claims 1 to 9, wherein the rotation speed of the stirring shaft is 5 rpm or more and 25 rpm or less.
13. A slurry stirring apparatus according to claim 12, wherein the rotation speed of the stirring shaft is in the interval of 6 to 10 revolutions per minute.

Description

Slurry stirring equipment Technical Field The application relates to the technical field of energy storage, in particular to slurry stirring equipment. Background With the development of new energy, more and more fields adopt new energy as power. The battery device is widely applied to the fields of new energy automobiles, consumer electronics, energy storage systems and the like due to the advantages of high energy density, recycling charge, safety, environmental protection and the like. The battery device comprises a box body, a heat exchange assembly and a plurality of battery monomers, wherein the battery monomers and the heat exchange assembly are respectively arranged in the box body. The battery cell comprises a pole piece, slurry is coated on the pole piece, and a coating formed by the slurry provides active substances for the battery cell. In the related art, the slurry needs to be stirred in a buffer tank before coating, and when the slurry contains more solid particles, the yield of the battery cells is reduced. Disclosure of utility model In view of the above problems, the application provides a slurry stirring device, a slurry stirring method and a battery production line, which solve the problem that solid particles are increased due to drying of slurry in the existing slurry stirring process. A first aspect of the present application proposes a slurry stirring device comprising: The tank body comprises a stirring space, a feed inlet and a discharge outlet, and the feed inlet and the discharge outlet are respectively communicated with the stirring space; The stirring paddle is arranged in the stirring space in a rotatable mode and comprises a stirring shaft, a stirring frame, a first propeller blade and a second propeller blade, wherein the stirring shaft is arranged along the height direction of the tank body, the stirring frame is connected to the stirring shaft and synchronously rotates along with the stirring shaft, the first propeller blade and the second propeller blade are respectively connected to the stirring frame, the first propeller blade and the second propeller blade are respectively arranged around the stirring shaft, the stirring diameter of the first propeller blade is larger than the stirring diameter of the second propeller blade along the radial direction of the stirring shaft, the distance between the stirring frame and the inner bottom surface of the stirring space is between 0 and 2 cm along the axial direction of the stirring shaft, and the minimum distance between the first propeller blade and the inner peripheral wall of the stirring space is between 0 and 2 cm along the radial direction of the stirring shaft; The driving piece is arranged outside the stirring space, the driving piece comprises a driving shaft which is in transmission connection with the stirring shaft, the driving shaft can rotate along a first direction and a second direction opposite to the first direction, when the driving shaft rotates along the first direction, the first propeller blade and the second propeller blade can drive slurry to move from bottom to top, and when the driving shaft rotates along the second direction, the first propeller blade and the second propeller blade can drive the slurry to move from top to bottom. When the stirring equipment is used, the slurry enters the tank body from the feed inlet and is discharged from the discharge outlet after being stirred by the stirring paddle, so as to provide slurry for coating. In the coating process, the stirring paddles rotate along a first direction, the first propeller blades and the second propeller blades drive the slurry to move from bottom to top, and when the coating is stopped, the stirring paddles rotate along a second direction, and the first propeller blades and the second propeller blades drive the slurry to move from top to bottom. Through setting up first screw blade and second screw blade, can realize turning up the thick liquids, improve the mobility of thick liquids, reduce the condition that the thick liquids detained to reduce the problem that leads to the thick liquids to dry because of the thick liquids is detained, make the solid particle in the thick liquids obtain reducing, and then improved the free yield of battery. In some embodiments of the present application, the stirring frame includes a first link and two second links, the first link is connected to the stirring shaft and disposed at an angle to the stirring shaft, two ends of the first link protrude from the stirring shaft along a radial direction of the stirring shaft, the two second links are connected to the first link at an angle, the two second links are located at opposite sides of the stirring shaft along the radial direction of the stirring shaft, the first propeller blade includes a first connection portion and a second connection portion that are disposed opposite to each other, the first connection portion is connected to one second link, th