CN215142871U - Lithium battery pole piece non-contact dust pelletizing system - Google Patents

Abstract

The utility model discloses a lithium battery pole piece non-contact dust pelletizing system, including gas recovery purifier, dust collector, intake pipe and muffler, dust collector is including the casing, set up air inlet chamber and two negative pressure cavities in the casing, set up the ultrasonic cyclone in the air inlet chamber, set up the static eliminator on the casing, the air inlet chamber is located between two negative pressure cavities, the inlet end of air inlet chamber, the end of giving vent to anger of two negative pressure cavities is connected with gas recovery purifier through intake pipe and muffler respectively, the end of giving vent to anger of air inlet chamber, the inlet end and the static eliminator of two negative pressure cavities all set up on the same side of casing, all towards lithium battery pole piece treat the dust removal surface promptly. The utility model discloses a middle inspiratory structure of blowing, both sides negative pressure for the suspension is at the dust on pole piece surface to both sides diffusion under the effect of middle blowing stress, finally is siphoned away by both sides negative pressure cavity, forms secondary pollution in avoiding giving off the space.

Description

Lithium battery pole piece non-contact dust pelletizing system

Technical Field

The utility model relates to a dust collecting equipment field specifically is a lithium battery pole piece non-contact dust pelletizing system.

Background

With the development of new energy automobiles, the requirements on the lithium ion power battery are higher and higher, and dust on positive and negative electrode plates of the lithium battery can cause short circuit, so that the self-discharge or safety accidents of the battery are caused. Because most of the lithium battery pole pieces are cut and formed by laser cutting in various ways at present, dust such as scraps cannot be generated in the production process, and if the dust is not eliminated before assembly, the quality of a battery product is greatly influenced. At present, the power battery industry generally adopts a manual sheet brushing mode to eliminate dust, and also adopts an automatic device to eliminate dust, but the dust eliminating effect is still deficient.

The current dust removal methods include the following: 1. the mode of the brush and the negative pressure is adopted, and the biggest problem of the mode is that the brush is difficult to brush dust in practice, because dust particles are very small, the brush has the risk of brushing a pole piece, and parameters such as the hardness, the consistency and the distance between the brush and the pole piece are difficult to control; the negative pressure hardly offsets the adhesive force of dust on the pole piece so as to eliminate the dust, so the effect is not good; 2. positive pressure sweeps + negative pressure dust absorption, and the risk that the pole piece was hindered to the brush does not exist to this mode, belongs to non-contact dust removal, and several kinds of modes result in also not good enough reasons of effect of publishing at present are, and structural design is unreasonable to lead to blowing and the dust absorption can not form effective air current, and because static reason, the dust can not blow down on the pole piece, even blow down, also forms the secondary and adsorbs easily.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a lithium battery pole piece non-contact dust pelletizing system can effectively eliminate the dust on lithium battery pole piece surface, and avoids the absorbent problem of secondary.

The technical scheme of the utility model is that:

the utility model provides a lithium battery pole piece non-contact dust pelletizing system, is including gaseous recovery purifier, dust collector, intake pipe and muffler, dust collector including the casing, set up intake chamber and two negative pressure chambers in the casing, set up ultrasonic cyclone in the intake chamber, set up the static eliminator on the casing, the intake chamber be located between two negative pressure chambers, the inlet end of intake chamber is connected through intake pipe and gaseous recovery purifier's clean gas outlet, the end of giving vent to anger of two negative pressure chambers all is connected through muffler and gaseous recovery purifier's dust negative pressure recovery mouth, the end of giving vent to anger of intake chamber, the inlet end and the static eliminator of two negative pressure chambers all set up on same side of casing, all towards the surface of waiting to remove dust of lithium battery pole piece promptly.

The ultrasonic cyclone comprises an ultrasonic generator and an ultrasonic transducer connected with the ultrasonic generator.

The static eliminator is divided into two groups, wherein one group of static eliminator is positioned between the air outlet end of the air inlet chamber and the air inlet end of one negative pressure chamber, and the other group of static eliminator is positioned between the air outlet end of the air inlet chamber and the air inlet end of the other negative pressure chamber.

The ultrasonic generator is a high-frequency ultrasonic generator.

The utility model has the advantages that:

(1) the utility model adopts the structure of middle blowing and negative pressure suction at two sides, so that the dust suspended on the surface of the pole piece is diffused to two sides under the action of middle blowing stress and finally sucked away by the negative pressure cavities at two sides, thereby avoiding the dust from diffusing into the space to form secondary pollution;

(2) the utility model is provided with the static eliminator, the plasma generated by the static eliminator can eliminate the static carried by the dust ions on the pole piece, thereby the dust loses the adsorption force on the pole piece and the purpose of eliminating the static of the pole piece is achieved;

(3) the utility model discloses be provided with the ultrasonic wave cyclone for the clean gas that enters into in the air intake chamber forms high frequency shortwave and vibrates the air current, produces ultrasonic wave whirlwind on the pole piece surface, makes the dust of pole piece surface suspension produce violent collision, breaks original interfacial effect, changes and is adsorbed by the negative pressure.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the dust removing device of the present invention.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and fig. 2, a non-contact dust removing system for lithium battery pole pieces comprises a gas recovery and purification device 1, a dust removing device 2, an air inlet pipe 3 and an air return pipe 4, wherein the dust removing device 2 comprises a shell 21, an air inlet chamber 22 and two negative pressure chambers 23 arranged in the shell 21, set up ultrasonic cyclone 24 in air inlet chamber 22, set up the electrostatic eliminator 25 on casing 21, air inlet chamber 22 is located between two negative pressure chambers 23, air inlet chamber 22's the inlet end of admitting air is passed through intake pipe 3 and is connected with the clean gas outlet of gas recovery purifier 1, two negative pressure chambers 23's the end of giving vent to anger all is retrieved the mouth through muffler 4 and gas recovery purifier 1's dust negative pressure and is connected, air inlet chamber 22's the end of giving vent to anger, two negative pressure chambers 23's the inlet end and electrostatic eliminator 25 all set up on same side of casing 21, all face lithium battery pole piece 5 promptly and treat the dust removal surface.

The ultrasonic cyclone 24 includes a high-frequency ultrasonic generator and an ultrasonic transducer connected to the ultrasonic generator, wherein the high-frequency ultrasonic generator generates a high-frequency alternating current signal to the ultrasonic transducer, and the ultrasonic transducer generates high-frequency ultrasonic waves.

The static eliminator 25 is divided into two groups, wherein one group of static eliminator 25 is positioned between the air outlet end of the air inlet chamber 22 and the air inlet end of one negative pressure chamber 23, and the other group of static eliminator 25 is positioned between the air outlet end of the air inlet chamber 22 and the air inlet end of the other negative pressure chamber 23, so that the omnibearing static treatment of the surface of the pole piece 5 is realized.

The utility model discloses a theory of operation:

(1) firstly, the gas recovery and purification device 1 outputs dry and clean gas and the dry and clean gas enters the gas inlet chamber 22 of the dust removal device 2 through the gas inlet pipe 3;

(2) the plasma generated by the static eliminator 24 eliminates the static electricity carried by the dust ions on the pole piece 5, thereby leading the dust to lose the adsorption force on the pole piece and achieving the purpose of eliminating the static electricity of the pole piece;

(3) meanwhile, the gas in the gas inlet chamber 22 generates high-frequency short-wave oscillating airflow to blow to the surface of the pole piece 5 under the action of the ultrasonic cyclone 24, and ultrasonic cyclone is generated on the surface of the pole piece 5, so that dust suspended on the surface of the pole piece is violently collided, and the original interface effect is broken;

(4) the dust suspended on the surface of the pole piece 5 is inevitably diffused to two sides under the action of middle blowing stress, and is finally sucked away by the two negative pressure chambers 23 on the two sides;

(5) and the dust sucked away by the two negative pressure chambers 23 is recovered to the gas recovery and purification device 1 through the air return pipe 4 to be collected and purified, so that the whole dust removal process is completed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a lithium battery pole piece non-contact dust pelletizing system which characterized in that: including gaseous recovery purifier, dust collector, intake pipe and muffler, dust collector including the casing, set up air inlet chamber and two negative pressure chambers in the casing, set up in air inlet chamber's ultrasonic cyclone, set up the static eliminator on the casing, air inlet chamber be located between two negative pressure chambers, air inlet chamber's inlet end is connected with gaseous recovery purifier's clean gas outlet through the intake pipe, two negative pressure chambers's the end of giving vent to anger all is retrieved the mouth through muffler and gaseous recovery purifier's dust negative pressure and is connected, air inlet chamber's the end of giving vent to anger, two negative pressure chambers's inlet end and static eliminator all set up on same side of casing, all towards the surface of waiting to remove dust of lithium-ion battery pole piece promptly.

2. The non-contact dedusting system for the lithium battery pole pieces according to claim 1, characterized in that: the ultrasonic cyclone comprises an ultrasonic generator and an ultrasonic transducer connected with the ultrasonic generator.

3. The non-contact dedusting system for the lithium battery pole pieces according to claim 1, characterized in that: the static eliminator is divided into two groups, wherein one group of static eliminator is positioned between the air outlet end of the air inlet chamber and the air inlet end of one negative pressure chamber, and the other group of static eliminator is positioned between the air outlet end of the air inlet chamber and the air inlet end of the other negative pressure chamber.

4. The non-contact dedusting system for the lithium battery pole pieces according to claim 2, characterized in that: the ultrasonic generator is a high-frequency ultrasonic generator.

Images