CN214555229U

CN214555229U - Two-stage lithium battery negative electrode material screening device

Info

Publication number: CN214555229U
Application number: CN202120735724.6U
Authority: CN
Inventors: 郑志浩; 原焕春
Original assignee: Qingdao Xintianhe Carbon Material Co ltd
Current assignee: Qingdao Xintianhe Carbon Material Co ltd
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-11-02
Anticipated expiration: 2031-04-12

Abstract

The utility model discloses a two-stage lithium cell negative pole material screening plant, screening case and reel including the cylinder type, the bottom outer wall fixed connection of screening case is connected with many supporting legss, the top welding of screening case have the feeder hopper and communicate with the screening case, the top of feeder hopper is rotated through the round pin axle and is connected with the top cap, the reel sets up at screening incasement portion, the screen cloth of the bottom fixedly connected with circular cone bucket type of reel, the screening incasement is provided with rotating device, rotating device includes annular support plate. The utility model discloses be equipped with rotating device, the rotational speed of voltage signal control motor through the input in screening process makes the rotational speed intermittent type nature's of whole reel and screen cloth change, changes centrifugal force's size and sends and sieve cloth with the circular cone fill type sieves the carbon element material granule, makes the carbon element material granule turn back and forth on the screen cloth wire side again, makes the carbon element material granule fully screened.

Description

Two-stage lithium battery negative electrode material screening device

Technical Field

The utility model relates to a material screening technical field especially relates to a two-stage lithium cell negative electrode material screening plant.

Background

The lithium battery is a battery which uses lithium metal or lithium alloy as a positive or negative electrode material and uses a non-aqueous electrolyte solution, and the lithium metal has very high requirements on the environment due to the very active chemical characteristics of the lithium metal, so that the lithium metal is processed, stored and used. With the development of science and technology, lithium batteries have become mainstream, and at present, the negative electrode materials actually used in lithium batteries are basically carbon materials, such as artificial graphite, natural graphite, mesocarbon microbeads, petroleum coke, carbon fibers, pyrolytic resin carbon and the like.

In the production process of the lithium battery, the negative electrode material needs to be screened, the battery obtains better energy density when material particles with proper particle sizes are selected, and the carbon material particles have excellent lubricating and conducting performance and stronger adhesion, so that the carbon particles are easy to adhere to meshes of a screen mesh in the screening process, the screen mesh is blocked, the screening efficiency is reduced, meanwhile, the particles are easy to fly by the traditional vibration screening device with small carbon particles, and the environment can be seriously polluted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a two-stage lithium battery negative electrode material screening device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a two-stage lithium cell negative pole material screening plant, includes the screening case and the reel of cylinder type, the many supporting legss of bottom outer wall fixed connection of screening case, the top welding of screening case have the feeder hopper and communicate with the screening case, the top of feeder hopper is rotated through the round pin axle and is connected with the top cap, the reel sets up at screening incasement portion, the screen cloth of the circular cone hopper type of bottom fixedly connected with of reel, be provided with rotating device in the screening case.

Preferably, the rotating device comprises an annular supporting plate, the annular supporting plate is fixed on the inner wall of the screening box, a circle of annular fixing plate is fixedly connected to the outer wall of the screen frame, an annular sliding groove is formed in the upper end face of the annular supporting plate, and a plurality of pulleys are fixedly connected to the bottom face of the annular fixing plate and are in rolling connection with the annular sliding groove.

Preferably, an annular groove is formed in the inner wall of the screening box above the annular supporting plate, an annular gear is fixedly connected to the outer annular surface of the annular fixing plate, and the annular gear is located in the annular groove.

Preferably, an installation board of fixedly connected with is gone up to the outer wall of screening case, fixedly connected with motor on the installation board, the coaxial welding of output shaft of motor has the pivot, the coaxial fixedly connected with gear of one end of motor is kept away from in the pivot, the screening case has been seted up intercommunication mouth and annular groove intercommunication on being close to one side outer wall of motor, the gear passes through intercommunication mouth and ring gear meshing.

Preferably, a plurality of lifting blocks are fixedly connected in the annular sliding groove of the annular supporting plate, each lifting block is of an inclined platform-shaped structure, and the bottom end of the inclined plane of each lifting block is flush with the bottom surface of the annular sliding groove.

Preferably, the height of the inclined plane of the lifting block is half of the groove depth of the annular sliding groove, and the motor is a servo motor with the model number SMG-M02430.

The utility model discloses in, compare with prior art, the utility model has the advantages of:

1. the utility model is provided with a rotating device, the rotating speed of the motor is controlled by the input voltage signal in the screening process, the rotating speed of the whole screen frame and the screen mesh changes intermittently, the centrifugal force is changed, the conical hopper-shaped screen mesh is distributed to screen the carbon material particles, the carbon material particles are turned back and forth on the screen mesh surface, and the carbon material particles are fully screened;

2. the utility model discloses the reel rotates the in-process, and the pulley rolls in annular chute, when the pulley removes to promotion piece department, whole reel height promotes when sliding along the inclined plane of promotion piece, later the pulley through promote the piece fall in the twinkling of an eye, gives the vibration of reel and the vertical direction of screen cloth, utilizes the jam granule of intermittent type nature vibration messenger in the screen cloth mesh to break away from, has guaranteed screening efficiency.

Drawings

Fig. 1 is a three-dimensional view of a two-stage lithium battery negative electrode material screening device provided by the present invention;

fig. 2 is a schematic structural diagram of the inside of a two-stage lithium battery negative electrode material screening device provided by the present invention;

fig. 3 is an enlarged schematic view of a point a of the two-stage lithium battery negative electrode material screening device provided by the present invention;

fig. 4 is the utility model provides a structural schematic of promotion piece part in two-stage lithium cell negative pole material screening plant.

In the figure: 1 screening case, 2 supporting legss, 3 feeder hoppers, 4 top covers, 5 reel, 6 screens, 7 annular fixed plates, 8 annular supporting plates, 9 annular chutes, 10 pulleys, 11 annular grooves, 12 annular gears, 13 mounting plates, 14 motors, 15 rotating shafts, 16 gears, 17 communicating ports and 18 lifting blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a two-stage lithium battery negative electrode material screening plant, including the screening case 1 and the reel 5 of cylinder type, the bottom outer wall fixed connection of screening case 1 has many supporting legss 2, the top welding of screening case 1 has feeder hopper 3 and communicates with screening case 1, the top of feeder hopper 3 is rotated through the round pin axle and is connected with top cap 4, reel 5 sets up inside the screening case, the bottom fixed connection of reel 5 has conical hopper type's screen cloth 6, be provided with rotating device in the screening case 1.

Rotating device includes annular support plate 8, annular support plate 8 fixes on the inner wall of screening case 1, fixedly connected with round annular fixed plate 7 on the outer wall of reel 5, annular spout 9 has been seted up to annular support plate 8's up end, a plurality of pulleys of bottom surface fixedly connected with 10 of annular fixed plate 7, a plurality of pulleys 10 and annular spout 9 roll connection, a plurality of promotion pieces 18 of fixedly connected with in annular spout 9 of annular support plate 8, promotion piece 18 is sloping platform column structure, the bottom on the inclined plane of promotion piece 18 flushes with the bottom surface of annular spout 9, the inclined plane height of promotion piece 18 is the half of the groove depth of annular spout 9, avoid pulley 10 to take place to derail the problem from annular spout 9 internal slipping.

Screening case 1 is located 8 top inner walls of annular support plates and has seted up annular groove 11, the outer anchor ring fixedly connected with ring gear 12 of annular fixed plate 7, ring gear 12 is located annular groove 11, a mounting panel 13 of fixedly connected with on the outer wall of screening case 1, fixedly connected with motor 14 on the mounting panel 13, the coaxial welding of output shaft of motor 14 has pivot 15, the coaxial fixedly connected with gear 16 of one end that motor 14 was kept away from to pivot 15, intercommunication mouth 17 and annular groove 11 intercommunication have been seted up on the outer wall of one side that screening case 1 is close to motor 14, gear 16 passes through intercommunication mouth 17 and ring gear 12 meshing, 14 servo motor of motor SMG-M02430 that is located, can turn into torque and rotational speed with the drive control object with voltage signal.

In the utility model, when in use, the carbon material particles to be screened are firstly guided into the screen 6 in the screening box 1 from the feed hopper 3, then the top cover 4 is closed, the motor 14 is switched on to drive the rotating shaft 15 and the gear 16 to rotate when the motor 15 works, the screen frame 5 is driven to rotate through the meshing transmission of the gear 16 and the ring gear 12, the pulleys 10 on the screen frame 5 roll in the annular chute 10, so that the whole screen frame 5 rotates circumferentially, the carbon material particles in the screen 6 of the conical hopper type slide towards the frame edge of the screen frame 5 along the net surface of the screen 6 under the action of centrifugal force, the carbon material particles are fully turned and contact with the screen surface, the rotating speed of the motor 14 is reduced through the input voltage signal in the screening process, the speed is reduced, the centrifugal force at which the carbon material particles are located is reduced, the particles at the frame edge move towards the central low point of the screen 6 under the action of gravity, during screening, the rotating speed of the whole screen frame 5 and the screen 6 changes intermittently at a high speed and a low speed, so that the carbon material particles are screened fully.

In the rotation process of the screen frame, the pulley 9 rolls in the annular sliding groove 10, when the pulley 9 moves to the lifting block 18, the whole screen frame 5 is lifted highly when sliding along the inclined plane of the lifting block 18, then the pulley 9 drops down instantly through the lifting block 18 to give the vertical vibration of the screen frame 5 and the screen 6, and the blocking particles in the meshes of the screen 6 are separated through vibration, so that the screening efficiency is ensured.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a two-stage lithium cell negative pole material screening plant, includes screening case (1) and reel (5) of cylinder type, its characterized in that, many supporting legss (2) of the bottom outer wall fixedly connected with of screening case (1), the top welding of screening case (1) has feeder hopper (3) and communicates with screening case (1), the top of feeder hopper (3) is rotated through the round pin axle and is connected with top cap (4), reel (5) set up in the screening incasement portion, screen cloth (6) of the bottom fixedly connected with circular cone bucket type of reel (5), be provided with rotating device in screening case (1).

2. The two-stage lithium battery negative electrode material screening device according to claim 1, wherein the rotating device comprises an annular supporting plate (8), the annular supporting plate (8) is fixed on the inner wall of the screening box (1), a ring of annular fixing plate (7) is fixedly connected to the outer wall of the screen frame (5), an annular sliding groove (9) is formed in the upper end face of the annular supporting plate (8), a plurality of pulleys (10) are fixedly connected to the bottom face of the annular fixing plate (7), and the pulleys (10) are in rolling connection with the annular sliding groove (9).

3. A two-stage lithium battery negative electrode material screening device as claimed in claim 2, wherein the screening box (1) is provided with an annular groove (11) at the inner wall above the annular supporting plate (8), the outer annular surface of the annular fixing plate (7) is fixedly connected with a ring gear (12), and the ring gear (12) is located in the annular groove (11).

4. A two-stage lithium battery negative electrode material screening device according to claim 3, characterized in that a mounting plate (13) is fixedly connected to the outer wall of the screening box (1), a motor (14) is fixedly connected to the mounting plate (13), a rotating shaft (15) is coaxially welded to an output shaft of the motor (14), a gear (16) is coaxially and fixedly connected to one end of the rotating shaft (15) far away from the motor (14), a communicating opening (17) is formed in the outer wall of one side of the screening box (1) close to the motor (14) and communicated with the annular groove (11), and the gear (16) is meshed with the annular gear (12) through the communicating opening (17).

5. A two-stage lithium battery negative electrode material screening device as claimed in claim 4, wherein a plurality of lifting blocks (18) are fixedly connected in the annular sliding groove (9) of the annular supporting plate (8), the lifting blocks (18) are in a sloping platform-shaped structure, and the bottom ends of the slopes of the lifting blocks (18) are flush with the bottom surface of the annular sliding groove (9).

6. The two-stage lithium battery negative electrode material screening device as claimed in claim 5, wherein the height of the inclined plane of the lifting block (18) is half of the groove depth of the annular sliding groove (9), and the motor (14) is a servo motor of the model SMG-M02430.