CN219595994U - Anti-blocking lithium plasma filtering device - Google Patents

Abstract

The utility model discloses an anti-blocking lithium plasma filtering device which comprises a sieving device and a collecting hopper, wherein the sieving device and the collecting hopper are sequentially arranged from top to bottom, a feed inlet is formed in the sieving device, a discharge outlet is formed in the bottom of the collecting hopper, a discharge valve is arranged at the discharge outlet, a stirring mechanism is arranged above a screen of the sieving device, and the upper part of the side wall of the collecting hopper is connected with a vacuumizing mechanism. According to the utility model, the stirring mechanism is arranged above the screen, and stirring is performed during filtering, so that the screen can be prevented from being blocked; meanwhile, the collecting hopper is connected with the vacuumizing mechanism, so that the slurry can be filtered, air bubbles generated in the filtering process can be removed, and the stability of subsequent coating performance and the improvement of the performance of lithium battery products are facilitated.

Description

Anti-blocking lithium plasma filtering device

Technical Field

The utility model relates to the technical field of lithium plasma preparation, in particular to an anti-blocking lithium plasma filtering device.

Background

The lithium ion battery is widely applied to the fields of communication, illumination, energy storage, electric vehicles, electric bicycles, electric tools and the like. Along with the continuous development of lithium ion batteries, the requirements on anode and cathode materials are higher and higher, the particle size of the materials is smaller, and the dispersion difficulty of battery slurry is higher. After the preparation of the battery slurry is finished, a large amount of agglomerated particles appear in the slurry, so that on one hand, the filter device is easy to be blocked, the labor intensity of workers is increased, and the stability of the coating process is reduced; on the other hand, a great amount of bubbles can be generated in the filtering process, so that the product performance is greatly influenced, and the electrochemical performance of the lithium battery is further influenced.

Chinese patent CN201810079785.4 discloses a lithium battery slurry stirring and filtering device, and this kind of lithium battery slurry stirring and filtering device is rational in infrastructure, novel in design, and the blowing of being convenient for has improved lithium battery slurry dispersion's homogeneity, when the material is arranged, realizes filtering lithium battery slurry to granule and impurity in the removal slurry guarantee lithium battery slurry's dispersion uniformity. However, a large amount of bubbles are generated during filtration, which is unfavorable for the subsequent coating process and reduces the performance of the product.

Disclosure of Invention

The utility model aims to solve the defects that a large number of agglomerated particles appear in slurry after the preparation of battery slurry in the prior art, so that a filter device is easy to be blocked, a large number of bubbles can be generated during the filtration, and the subsequent coating process is not facilitated.

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

the utility model provides a prevent lithium plasma filter equipment of jam, includes from last sieving mechanism to setting gradually down and collecting hopper, is equipped with the feed inlet on the sieving mechanism, and the bottom of collecting hopper is equipped with the discharge gate, and the discharge gate is equipped with the bleeder valve, the screen cloth top of sieving the device is equipped with rabbling mechanism, the lateral wall top of collecting hopper is connected with evacuating mechanism.

The stirring mechanism comprises a stirring motor, a stirring rod and a scraper, wherein the scraper is in a cross shape and is just contacted with the screen.

The scraping plate is made of elastic materials, and is preferably made of acid and alkali resistant rubber, plastic, silica gel and other materials.

The vacuumizing mechanism comprises a vacuum pump, and a buffer container is arranged between the vacuum pump and the collecting hopper.

An exhaust valve is arranged between the buffer container and the collecting hopper.

The air inlet of the exhaust valve is provided with a baffle which is preferably L-shaped and can prevent slurry from being sucked back into the vacuumizing mechanism.

The collecting hopper is communicated with the vacuumizing mechanism through a pipeline.

The stirring mechanism is connected with the lifting frame.

The bottom end of the sieving device is provided with a slag discharging port.

The utility model has the beneficial effects that:

according to the utility model, the stirring mechanism is arranged above the screen, and stirring is performed during filtering, so that the screen can be prevented from being blocked; meanwhile, the collecting hopper is connected with the vacuumizing mechanism, so that the slurry can be filtered, air bubbles generated in the filtering process can be removed, and the stability of subsequent coating performance and the improvement of the performance of lithium battery products are facilitated.

Drawings

Fig. 1 is a schematic front view of a blocking-preventing lithium plasma filter in embodiment 1;

FIG. 2 is a top view of the screening apparatus of the present utility model;

FIG. 3 is a top view of a screed according to the present utility model;

fig. 4 is a schematic front view of a blocking-preventing lithium plasma filter in embodiment 2;

in the figure: 1-sieving device; 101-a screen; 102-a screen support; 2-collecting hoppers; 3-a feed inlet; 4-a discharge hole; 5-a discharge valve; 6-a stirring mechanism; 601-a stirring motor; 602-stirring rod; 603 a scraper; 7-vacuumizing mechanism; 701-a vacuum pump; 702-a buffer container; 703-an exhaust valve; 8-lifting frames; 801-lifting support; 802-motor; 803-cable; 804-lifting rod; 9-a bolt; 10-a slag discharge port.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Example 1

Referring to fig. 1-3, an anti-blocking lithium plasma filtering device comprises a sieving device 1 and a collecting hopper 2 which are sequentially arranged from top to bottom, wherein a feed inlet 3 is arranged on the sieving device 1, a discharge outlet 4 is arranged at the bottom of the collecting hopper 2, a discharge valve 5 is arranged at the discharge outlet, a stirring mechanism 6 is arranged above a screen 101 of the sieving device 1, and the upper side wall of the collecting hopper 2 is connected with a vacuumizing mechanism 7.

The stirring mechanism 6 comprises a stirring motor 601, a stirring rod 602 and a scraper 603, wherein the scraper 603 is in a cross shape, the scraper 603 is just contacted with the screen 101, and the scraper 603 is made of acid-resistant and alkali-resistant rubber, so that the screen 101 can be prevented from being damaged by the scraper 603.

The vacuum pumping mechanism 7 includes a vacuum pump 701, a buffer container 702 is provided between the vacuum pump 701 and the collection hopper 2, an exhaust valve 703 is provided between the buffer container 702 and the collection hopper 2, and a baffle 704 is provided at an air inlet position of the exhaust valve 703, and the baffle is preferably in a "reverse" shape.

In the present embodiment, the collection hopper 2 communicates with the evacuation mechanism 7 through a hose.

Example two

The following further improvements are made on the basis of the first embodiment:

in order to facilitate maintenance and cleaning of the sieving device 1 and the stirring mechanism 6, the stirring mechanism 6 is connected to a lifting frame 8. The lifting frame 8 comprises a lifting bracket 801, a motor 802, a cable 803 and a lifting rod 804, wherein the lifting rod 804 is movably connected with the lifting bracket 801, and the lifting rod 804 is fixedly connected with the stirring motor 601 and used for lifting and moving the stirring mechanism 6.

In the embodiment, the sieving device 1 is formed by surrounding a screen 101 by a screen bracket 102 for one circle, a sealing gasket is arranged at the joint of the screen bracket 102 and the screen 101, and the top ends of the screen bracket 102 and the collecting hopper 2 are fixed by bolts 9.

In this embodiment, the bottom end of the sieving device 1 is provided with a slag discharge port 10, and the slag discharge port 10 is provided with a corresponding valve for discharging large-particle impurities when the sieve is cleaned.

When the device is used for filtering, firstly, the discharge valve 5 is kept in a closed state, the stirring motor 601 is started, and the scraper 603 above the screen 101 is used for stirring, so that the screen blockage can be prevented; simultaneously, the vacuum pump 701 is started to vacuumize, the inside of the collecting hopper 2 is always kept in a negative pressure state during filtration, the slurry filtration can be promoted, air bubbles generated in the filtration process can be removed, then the discharge valve 5 is opened, the exhaust valve 703 is closed, and the filtered slurry is discharged.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, connected through an intermediary, or connected through communication between two elements. The specific meaning of the above terms in this application will be understood by those of ordinary skill in the art according to the specific circumstances.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (9)

1. The utility model provides a prevent lithium plasma filter equipment of jam, includes sieving mechanism (1) and collection hopper (2) that set gradually from last to down, is equipped with feed inlet (3) on sieving mechanism (1), and the bottom of collection hopper (2) is equipped with discharge gate (4), and the discharge gate is equipped with bleeder valve (5), its characterized in that: the stirring mechanism (6) is arranged above the screen (101) of the sieving device (1), and the upper part of the side wall of the collecting hopper (2) is connected with the vacuumizing mechanism (7).

2. The anti-clogging lithium plasma filter device according to claim 1, wherein the stirring mechanism (6) comprises a stirring motor (601), a stirring rod (602) and a scraper blade (603), the scraper blade (603) is in a cross shape, and the scraper blade (603) is just contacted with the screen (101).

3. The anti-clogging lithium plasma filter device as claimed in claim 2, wherein the scraper (603) is made of an elastic material.

4. The anti-clogging lithium plasma filtering device according to claim 1, characterized in that the vacuumizing mechanism (7) comprises a vacuum pump (701), and a buffer container (702) is arranged between the vacuum pump (701) and the collecting hopper (2).

5. The anti-clogging lithium plasma filter device as claimed in claim 4, wherein a vent valve (703) is provided between the buffer container (702) and the collection hopper (2).

6. The anti-clogging lithium plasma filter device as claimed in claim 5, characterized in that a baffle plate (704) is provided at the air inlet position of the exhaust valve (703).

7. The anti-clogging lithium plasma filtering device according to claim 1, wherein the collecting hopper (2) is communicated with the vacuumizing mechanism (7) through a pipeline.

8. The anti-clogging lithium plasma filter device according to claim 2, characterized in that the stirring mechanism (6) is connected with a lifting frame (8).

9. The anti-clogging lithium plasma filter device according to claim 2, characterized in that the bottom end of the sieving device (1) is provided with a slag discharge port (10).