CN211963252U - Anti-overflow device of lithium battery slurry conveying and filtering system - Google Patents

Abstract

The utility model discloses a filtration system anti-overflow leaks device is carried to lithium battery slurry, including a jar body, peg graft and be used for the inlet pipe that the thick liquids were carried and were installed the feed valve at jar side wall lower extreme, can dismantle seal installation at the upper end cover at jar body top, peg graft at the discharging pipe of upper end cover middle part and jar body cavity intercommunication and installation bleeder valve, the fixed cover in jar body upper segment position is equipped with the excessive jar of upper end and jar body parallel and level, forms the excessive chamber between the inner wall of excessive jar and the external wall of jar for hold the excessive thick liquids of the internal extrusion of jar body when opening the upper end cover. This filtration system is carried to lithium battery thick liquids prevents excessive hourglass device, through addding excessive chamber, excessive thick liquids flow direction excessive intracavity reduces the pollution of excessive thick liquids to the system, through addding intake pipe and slurry return pipe for carry out recycle to excessive thick liquids, can not cause the waste of excessive thick liquids.

Description

Anti-overflow device of lithium battery slurry conveying and filtering system

Technical Field

The utility model belongs to the technical field of the lithium cell, especially, relate to a filtration system prevents excessive device that leaks is carried to lithium cell thick liquids.

Background

In recent years, with the explosive growth of the demand of lithium ion secondary batteries, the automation degree of production equipment in each process in the production and manufacturing process of the lithium ion secondary batteries is greatly improved, the automatic conveying of slurry from the pulping process to the coating process is realized, the automatic iron removal and filtration functions can be realized in the conveying process, the automatic cleaning of a conveying pipeline can be realized through an automatic pipe cleaning device when the slurry formula is changed, but the automatic cleaning of the filtering device cannot be realized, the manual disassembly and cleaning are needed, and the slurry is easy to overflow to the outside of the system due to the pressure in the conveying system during disassembly.

As described above, the overflowed slurry may pollute the conveying device and the ground, and the slurry cannot be collected in a centralized manner, which results in waste of slurry, and a large amount of manpower and material resources are consumed for cleaning the overflowed slurry. Based on the above problems, there is a need for a device to improve the slurry overflow condition when the slurry filtering device is disassembled.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lithium cell thick liquids carry filtration system anti-overflow leaks device to solve the problem of background art.

In order to achieve the above object, the utility model discloses a lithium battery slurry transport filtration system prevents that overflow leaks device's concrete technical scheme as follows:

the utility model provides a lithium battery slurry carries filtration system and prevents excessive device, includes a jar body, pegs graft at jar side wall lower extreme and is used for the slurry to carry and install the inlet pipe of charging valve, can dismantle the upper end cover of seal installation at jar body top, peg graft at the upper end cover middle part with jar discharging pipe of body cavity intercommunication and installation bleeder valve, jar body upper segment position fixed cover is equipped with the excessive jar of upper end and jar body parallel and level, forms the excessive chamber between the inner wall of excessive jar and the external wall of jar for hold the excessive slurry of the internal pressure extrusion of jar body when opening the upper end cover.

Furthermore, the inner bottom wall of the tank body is connected with a filtering device with the upper end being parallel to and level with the upper end cover.

Furthermore, filter equipment is the filter screen of loop configuration, and the filter screen is cut apart into outer cavity and interior cavity with the cavity of jar body.

Furthermore, the lower end of the side wall of the overflow tank is communicated with a slurry return pipe, the other end of the slurry return pipe is communicated with the feeding pipe, and the slurry return pipe is provided with an overflow slurry discharge valve for enabling slurry in the overflow cavity to flow back to the feeding pipe.

Furthermore, one end of the slurry return pipe, which is far away from the overflow tank, is connected to a section of the feed pipe, which is located between the feed valve and the tank body.

Furthermore, the edge position of the upper end cover is inserted with an air inlet pipe which is used for pressurizing the overflow cavity to enable overflow liquid to flow back quickly, and the air inlet pipe is provided with an air inlet valve used for controlling air quantity.

Furthermore, the upper end cover has the same diameter as the overflow tank and is used for sealing the overflow cavity to form a closed space.

Furthermore, the upper end cover and the overflow tank are connected through a quick-release clamp, so that the overflow tank is convenient and quick to detach.

Compared with the prior art, the utility model discloses following beneficial effect has: this filtration system is carried to lithium battery thick liquids prevents excessive hourglass device, through addding excessive chamber, excessive thick liquids flow direction excessive intracavity reduces the pollution of excessive thick liquids to the system, through addding intake pipe and slurry return pipe for carry out recycle to excessive thick liquids, can not cause the waste of excessive thick liquids.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the internal structure of the present invention.

The reference numbers in the figures illustrate: overflow slurry discharge valve 1, feed valve 2, bleeder valve 3, overflow chamber 4, filter screen 5, outer cavity 6, interior cavity 7, upper end cover 8, admission valve 9.

Detailed Description

For a better understanding of the objects, structure and function of the invention, reference should be made to the drawings, FIGS. 1-2, which are included to illustrate the invention.

The existing anti-overflow and anti-leakage device for the lithium battery slurry conveying and filtering system comprises a tank body, a feeding pipe which is inserted at the lower end of the side wall of the tank body and used for conveying slurry and is provided with a feeding valve 2, an upper end cover 8 which is detachably and hermetically arranged at the top of the tank body, and a discharging pipe which is inserted at the middle part of the upper end cover 8 and communicated with a cavity of the tank body and is provided with a discharging valve 3, wherein an overflow tank with the upper end flush with the tank body is fixedly sleeved at the upper section of the tank body, an overflow cavity 4 is formed between the inner wall of the overflow tank and the outer wall of the tank body and used for containing overflow slurry extruded by the internal pressure of the tank body when the upper end cover 8 is opened, further, the inner bottom wall of the tank body is connected with a filtering device with the upper end flush with the upper end cover 8, and the filtering device is a filtering net 5 with an annular structure, the filter screen 5 divides the chamber of the tank body into an outer cavity 6 and an inner cavity 7.

In addition, the lateral wall lower extreme intercommunication of excessive jar has the slurry return pipe of the other end and inlet pipe intercommunication, and install excessive thick liquids bleeder valve 1 on the slurry return pipe, be used for the thick liquids in excessive chamber 4 to flow back to the inlet pipe, wherein, the one end that the excessive jar was kept away from to the slurry return pipe is connected on the inlet pipe is located one section between the feed valve 2 and the jar body, in addition, the border position of upper end cover 8 is pegged graft and is used for the intake pipe that pressurizes in the excessive chamber 4 and make the excessive liquid quick return, install the admission valve 9 that is used for controlling the tolerance in the intake pipe, upper end cover 8 is the same with excessive jar diameter, be used for sealing excessive chamber 4, form airtight space, upper end cover 8 adopts quick detach clamp connection with the excessive jar, convenient quick dismantlement.

The working principle is as follows: when the system normally operates, the feed valve 2 and the discharge valve 3 are opened, the overflow slurry discharge valve 1 and the air inlet valve 9 are closed, and the slurry after stirring enters the filtering device through the feed pipe via the feed valve 2 and then flows into the storage tank of the coating machine via the discharge pipe, so that the slurry is filtered and the impurities are removed; when the system is abnormal, the filter screen 5 is blocked, the feed valve 2 and the discharge valve 3 are closed, the upper end cover 8 is opened to replace the filter screen 5, at the moment, slurry overflows out of the filter screen 5 due to internal pressure in the system and flows into the overflow cavity 4 to be collected in a centralized manner, after the filter screen 5 is replaced, the upper end cover 8 is fastened again, the overflow slurry discharge valve 1 and the discharge valve 3 are opened, the feed valve 2 is closed, dry compressed air is introduced through the air inlet valve 9, the slurry in the overflow cavity is pressurized through the dry compressed air, enters the filter device again through the overflow slurry discharge valve 1, is filtered and then flows into a buffer tank of the coating machine, and the functions of avoiding waste of the overflow slurry and preventing pollution of the device are realized; when the slurry in the overflow cavity 4 is completely conveyed, the overflow slurry discharge valve 1 and the air inlet valve 9 are closed, the feed valve 2 is opened, and the system enters a conveying and filtering state again.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims (8)

1. The utility model provides a lithium battery slurry carries filtration system prevents excessive device that leaks, is used for the inlet pipe that the thick liquids were carried and installed feed valve (2) including a jar body, grafting at a jar side wall lower extreme, can dismantle seal installation at upper end cover (8) at jar body top, peg graft at upper end cover (8) middle part and jar body cavity intercommunication and install the discharging pipe of bleeder valve (3), its characterized in that: an overflow tank with the upper end flush with the tank body is fixedly sleeved at the upper section of the tank body, and an overflow cavity (4) is formed between the inner wall of the overflow tank and the outer wall of the tank body and is used for containing overflow slurry extruded by the internal pressure of the tank body when the upper end cover (8) is opened.

2. The lithium battery slurry conveying and filtering system anti-overflow and leakage device of claim 1, wherein the inner bottom wall of the tank body is connected with a filtering device with the upper end flush with the upper end cover (8).

3. The lithium battery slurry conveying and filtering system anti-overflow and leakage device of claim 2, wherein the filtering device is a filtering net (5) with an annular structure, and the filtering net (5) divides the cavity of the tank body into an outer cavity (6) and an inner cavity (7).

4. The lithium battery slurry conveying and filtering system anti-overflow and leakage device of claim 1, wherein the lower end of the side wall of the overflow tank is communicated with a slurry return pipe, the other end of the side wall of the overflow tank is communicated with the feeding pipe, and the slurry return pipe is provided with an overflow slurry discharge valve (1) for the slurry in the overflow cavity (4) to flow back to the feeding pipe.

5. The lithium battery slurry conveying and filtering system anti-overflow and leakage device of claim 4, wherein one end of the slurry return pipe, which is far away from the overflow tank, is connected to a section of the feeding pipe, which is located between the feeding valve (2) and the tank body.

6. The lithium battery slurry conveying and filtering system anti-overflow and leakage device of claim 5, wherein an air inlet pipe for pressurizing the overflow cavity (4) to enable overflow liquid to rapidly flow back is inserted into the edge position of the upper end cover (8), and an air inlet valve (9) for controlling air volume is installed on the air inlet pipe.

7. The lithium battery slurry conveying and filtering system anti-overflow and leakage device of claim 6, wherein the upper end cover (8) is the same diameter as the overflow tank, and is used for sealing the overflow cavity (4) to form a closed space.

8. The lithium battery slurry conveying and filtering system anti-overflow and leakage device of claim 7, wherein the upper end cover (8) is connected with the overflow tank by a quick-release clamp so as to be conveniently and quickly detached.

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