CN220370487U

CN220370487U - Slurry buffer tank device capable of removing bubbles and pole piece production equipment

Info

Publication number: CN220370487U
Application number: CN202322279228.6U
Authority: CN
Inventors: 蒋春建; 易凌英; 尤军
Original assignee: Shenzhen Exxon New Energy Technology Co ltd
Current assignee: Shenzhen Exxon New Energy Technology Co ltd
Priority date: 2023-08-22
Filing date: 2023-08-22
Publication date: 2024-01-23
Anticipated expiration: 2033-08-22

Abstract

The application provides a slurry buffer tank device capable of removing bubbles and pole piece production equipment. The slurry cache tank device capable of removing bubbles comprises an upper cover, a tank body, a filter element and a blocking element, wherein the upper cover is detachably connected with the tank body, a containing cavity is formed in the upper cover and the tank body together, a feed valve is arranged at the end part of the upper cover and communicated with the containing cavity, the filter element and the blocking element are both positioned in the containing cavity and connected with the tank body, the filter element is positioned above the blocking element, and a step material passing gap is formed in the edge of the blocking element and the tank body together, so that slurry enters the bottom along the tank wall of the tank body after passing through the step material passing gap. Specifically, the bubbles of the slurry are filtered out by the filter, and the blocking member controls the flow rate of the slurry to avoid new bubbles from being generated in the slurry after the slurry has been filtered.

Description

Slurry buffer tank device capable of removing bubbles and pole piece production equipment

Technical Field

The utility model relates to the field of slurry defoaming equipment, in particular to a slurry cache tank device capable of defoaming and pole piece production equipment.

Background

In the battery production process, battery slurry stirred by the stirrer is conveyed to the transfer tank through the diaphragm pump for vacuum defoaming, and then conveyed to the coating buffer tank through the screw pump, but the slurry is impacted to the bottom when being conveyed to the buffer tank because the pipeline is not full and the slurry enters the buffer tank, so that the slurry contains bubbles, and the service life or performance of the produced battery is influenced. In order to solve the above problems, a cache tank is generally subjected to vacuum bubble removal.

For example, chinese patent application number CN202120030408.9 discloses a lithium battery slurry feeding device with a bubble monitoring function, comprising a slurry storage tank and a vacuum system; the top opening of the slurry storage tank is communicated with the air inlet of the vacuum system; the discharge port at the bottom of the slurry storage tank is communicated with the feed port at the upper right side of the slurry storage tank through a circulating pipeline which is sequentially provided with a slurry feed pump, a filter, an iron remover, a reversing valve and a first ultrasonic detector; one end interface of the reversing valve is communicated with a feed inlet at the upper part of the coating process cache tank through a slurry feed pipeline provided with a second ultrasonic detector; the discharge hole at the bottom of the coating process buffer tank is communicated with the original die head of the battery slurry coating machine through a coating feeding pipeline which is sequentially provided with a screw pump and a third ultrasonic detector.

However, the structural design of the lithium battery slurry feeding device has the following problems in the use process:

the lithium battery slurry feeding device needs to remove bubbles through long-time vacuum circulation, so that the production efficiency is low, multiple times of filtration and iron removal are needed, and the production cost is increased.

Therefore, there is a need for an apparatus that reduces bubble generation and production costs.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a bubble-removing slurry cache tank device capable of reducing bubble generation and production cost and pole piece production equipment.

The aim of the utility model is realized by the following technical scheme:

a bubble-removable slurry surge tank apparatus comprising:

the upper cover with the jar body is detachable to be connected, the upper cover with the jar body is formed with the holding chamber jointly, the tip of upper cover is equipped with the feed valve, the feed valve with the holding chamber intercommunication, thick liquids buffer memory jar device still includes separation spare and filter equipment, the filter equipment with the separation spare all is located the holding intracavity and with the jar body coupling, the filter equipment is located the top of separation spare, the edge of separation spare with the jar body is formed with step clearance jointly, so that thick liquids pass through behind the step clearance along the jar wall entering bottom of the jar body.

In one implementation, the step clearance gap has a width of 7mm to 8mm.

In one embodiment, the filter is located from 4cm to 5cm from the barrier.

In one embodiment, the barrier is at a first predetermined angle to the canister, the first predetermined angle being 10 ° -20 °.

In one implementation, the slurry cache tank device capable of removing bubbles further comprises a double-layer magnetic iron removing structure, wherein the double-layer magnetic iron removing structure is positioned in the accommodating cavity and connected with the upper cover, and a diversion gap is formed inside the double-layer magnetic iron removing structure.

In one implementation, the filter is positioned between the barrier and the double layer magnetic de-ironing structure.

In one implementation, the double-layer magnetic iron removal structure and the upper cover have a second preset angle, and the second preset angle is 10-20 degrees.

In one implementation, the filter is a filter screen.

In one implementation, one end of the tank body is provided with a discharge valve, and the discharge valve is communicated with the accommodating cavity.

The pole piece production equipment comprises the bubble-removing slurry cache tank device according to any embodiment.

Compared with the prior art, the utility model has at least the following advantages:

foretell can remove thick liquids buffer memory jar device of bubble, the filter element is located the top of separation piece, separation piece and jar body are formed with the step clearance of passing through jointly, when thick liquids from the feed valve through the filter element, the filter element is expanded and is filtered out the bubble of thick liquids, then thick liquids get into the separation piece and get into the step clearance of passing through along the surface of separation piece, slowly flow into jar body bottom along jar wall of jar body at last, in order to avoid thick liquids to form the bubble owing to the too fast and jar body bottom impact of velocity of flow, so the structure setting through filter element and separation piece has reduced the production of thick liquids bubble in the buffer memory jar, need not to additionally filter the deironing to thick liquids many times simultaneously, manufacturing cost has been reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a slurry tank apparatus capable of removing bubbles according to an embodiment;

FIG. 2 is a cross-sectional view of the bubble-removable slurry surge tank apparatus shown in FIG. 1;

fig. 3 is a schematic structural diagram of a double-layered magnetic iron removal structure of the bubble-removable slurry buffer tank apparatus shown in fig. 1.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The utility model provides a can remove thick liquids buffer memory jar device of bubble, including upper cover, jar body, filter element and separation piece, the upper cover with the jar body can dismantle the connection, the upper cover with the jar body is formed with the holding chamber jointly, the tip of upper cover is equipped with the feed valve, the feed valve with the holding chamber intercommunication, the filter element with the separation piece all is located the holding intracavity and with jar body coupling, the filter element is located the top of separation piece, the edge of separation piece with jar body is formed with the step clearance of passing material jointly, so that thick liquids pass through behind the step clearance of passing material along the jar wall entering bottom of jar body.

For better understanding of the technical solutions and advantageous effects of the present application, the following details are further described with reference to specific embodiments:

as shown in fig. 1, the slurry cache tank device 10 capable of removing bubbles in an embodiment includes an upper cover 100, a tank body 200, a filter 300 and a blocking member 400, wherein the upper cover 100 is detachably connected with the tank body 200, the upper cover 100 and the tank body 200 together form a containing cavity 210, a feeding valve 110 is disposed at an end of the upper cover 100, and the feeding valve 110 is in communication with the containing cavity 210, so that slurry enters the containing cavity 210 through the feeding valve 110. Further, the filtering element 300 and the blocking element 400 are both located in the accommodating cavity 210 and are respectively connected with the tank body 200, the filtering element 300 is located above the blocking element 400, so that the slurry falls onto the blocking element 400 after passing through the filtering element 300, and a step material passing gap 410 is formed at one end of the blocking element 400 and the tank body 200 together, so that the slurry enters the bottom along the tank wall of the tank body 200 after passing through the step material passing gap 410.

In this embodiment, the slurry enters the accommodating cavity 210 through the feeding valve 110, the bubbles are unfolded and filtered out when the slurry passes through the filter 300, then the slurry falls into the barrier 400 below the filter 300, and the distance between the filter 300 and the barrier 400 is shorter, so as to avoid forming new bubbles due to overlarge impact when entering the barrier 400, and then the slurry flows to the step gap 410 and flows to the bottom along the tank wall of the tank 200, and the slurry has a certain viscosity so that the slurry slowly flows along the tank wall when flowing to the bottom of the tank 200, so as to avoid forming new bubbles due to overlarge impact when entering the bottom of the tank 200. It can be understood that the blocking member 400 is a baffle, the bottom of the baffle is provided with a connecting column 420, the connecting column 420 is connected with the tank 200, and the size of the step passing gap 410 between the baffle and the tank 200 can be adjusted by the connecting column 420, that is, the size of the step passing gap 410 can be adjusted by installing the connecting columns 420 with different thicknesses.

The above-mentioned slurry buffer tank device 10 capable of removing bubbles, the filter 300 is located above the blocking member 400, the blocking member 400 and the tank body 200 are formed with a step material passing gap 410 together, when slurry passes through the filter 300 from the feed valve 110, the filter 300 expands and filters out the bubbles of the slurry, then the slurry enters the blocking member 400 and enters the step material passing gap 410 along the surface of the blocking member 400, and finally slowly flows into the bottom of the tank body 200 along the tank wall of the tank body 200, so as to avoid the slurry from forming bubbles due to the rapid flow velocity and the bottom impact of the tank body 200, thus the generation of slurry bubbles in the buffer tank is reduced through the structural arrangement of the filter 300 and the blocking member 400, and meanwhile, the slurry is not required to be filtered and deironized for multiple times, thereby reducing the production cost.

In one implementation, the step clearance gap 410 has a width of 7mm to 8mm. It will be appreciated that the step gap 410 is of a lower width so that slurry flows slowly along the tank wall to the bottom of the tank 200 as it passes through the step gap 410 to avoid the formation of new bubbles from impacting the bottom too quickly.

In one implementation, the filter 300 is spaced from the barrier 400 by 4cm to 5cm. It will be appreciated that the distance between the filter 300 and the baffle 400 is small to prevent the slurry from forming new bubbles after the slurry impacts the baffle 400 due to the longer distance and faster flow rate of the slurry through the filter 300.

In one implementation, the barrier 400 is at a first predetermined angle to the canister 200, the first predetermined angle being 10 ° -20 °.

It will be appreciated that the baffle 400 is disposed obliquely within the tank 200 such that slurry can flow along the surface of the baffle 400 to the stepped pass gap 410 as the slurry enters the baffle 400 after passing through the filter 300. Further, if the first preset angle is within the range of 10 ° -20 °, the slurry may flow faster if the first preset angle is within a larger range, and thus new bubbles may be generated due to too high impact of the slurry.

As shown in fig. 1, in one implementation, the slurry cache tank device 10 further includes a double-layer magnetic iron removing structure 500, where the double-layer magnetic iron removing structure 500 is located in the accommodating cavity 210 and connected to the upper cover 100, and a diversion gap 540 is formed inside the double-layer magnetic iron removing structure 500.

It can be appreciated that the double-layer magnetic deironing structure 500 includes an upper magnetic assembly 510 and a lower magnetic assembly 520, the upper magnetic assembly 510 includes a plurality of round deironing bars 530 arranged at intervals, each two adjacent round deironing bars 530 form a diversion gap 540, the lower magnetic assembly 520 also includes a plurality of round deironing bars 530 arranged at intervals, each two adjacent round deironing bars 530 form a diversion gap 540, when the slurry falls into the double-layer magnetic deironing structure 500 from the feed valve 110, the slurry flows through the diversion gap 540, and the magnetic substances in the slurry are adsorbed by the surfaces of the round deironing bars 530, thereby ensuring that the magnetic substances in the slurry are removed.

As shown in fig. 1, in one implementation, the filter 300 is positioned between the barrier 400 and the double layer magnetic de-ironing structure 500. It will be appreciated that the slurry first passes through the double-layer magnetic de-ironing structure 500 and then enters the filter 300, where bubbles of the slurry are filtered out by the filter 300, and then the slurry enters the blocking member 400, so that the slurry slowly flows along the tank wall to the bottom of the tank 200 after passing through the stepped material passing gap 410.

In one implementation, the double-layered magnetic de-ironing structure 500 forms a second predetermined angle with the upper cover 100, the second predetermined angle being 10 ° -20 °. It will be appreciated that the double-layered magnetic iron removal structure 500 is disposed obliquely to the upper cover 100 such that when slurry enters the double-layered magnetic iron removal structure 500, the slurry can flow along the surface of the double-layered magnetic iron removal structure 500 to the diversion gap 540. Further, if the second preset angle is within the range of 10 ° -20 °, the slurry may flow faster if the second preset angle is within a larger range, and thus new bubbles may be generated due to too high impact of the slurry.

In one implementation, the filter 300 is a filter screen. In this embodiment, the filter 300 is a large area flat screen so that bubbles are spread and filtered out as the slurry passes through the screen.

As shown in fig. 1, in one implementation, an outlet valve 220 is disposed at one end of the tank 200, and the outlet valve 220 is in communication with the accommodating cavity 210. It can be appreciated that the discharge valve 220 is communicated with the pole piece processing device, so that the slurry filtered in the buffer tank flows into the pole piece processing device through the discharge valve 220 and coats the pole piece, so that the performance of the pole piece is better, and the service life of the battery cell is prolonged.

The application also provides pole piece production equipment, which comprises the bubble-removing slurry cache tank device 10 in any embodiment. The slurry cache tank device 10 capable of removing bubbles comprises an upper cover 100, a tank body 200, a filtering piece 300 and a blocking piece 400, wherein the upper cover 100 is detachably connected with the tank body 200, a containing cavity 210 is formed by the upper cover 100 and the tank body 200 together, a feeding valve 110 is arranged at the end part of the upper cover 100, and the feeding valve 110 is communicated with the containing cavity 210 so that slurry enters the containing cavity 210 through the feeding valve 110. Further, the filtering element 300 and the blocking element 400 are both located in the accommodating cavity 210 and are respectively connected with the tank body 200, the filtering element 300 is located above the blocking element 400, so that the slurry falls onto the blocking element 400 after passing through the filtering element 300, and a step material passing gap 410 is formed at one end of the blocking element 400 and the tank body 200 together, so that the slurry enters the bottom along the tank wall of the tank body 200 after passing through the step material passing gap 410.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The slurry cache tank device capable of removing bubbles comprises an upper cover and a tank body, wherein the upper cover is detachably connected with the tank body, a containing cavity is formed by the upper cover and the tank body together, a feed valve is arranged at the end part of the upper cover and is communicated with the containing cavity, the slurry cache tank device is characterized in that,

the slurry cache tank device further comprises a blocking piece and a filtering piece, wherein the filtering piece is located in the containing cavity and connected with the tank body, the filtering piece is located above the blocking piece, and a step material passing gap is formed at the edge of the blocking piece and the tank body together, so that slurry enters the bottom along the tank wall of the tank body after passing through the step material passing gap.

2. The bubble-free slurry tank apparatus of claim 1, wherein the step gap has a width of 7mm to 8mm.

3. The bubble-free slurry tank apparatus of claim 1, wherein the filter is located from 4cm to 5cm from the barrier.

4. The bubble-free slurry cache tank apparatus of claim 1, wherein the barrier is at a first predetermined angle to the tank body, the first predetermined angle being 10 ° -20 °.

5. The bubble-removable slurry cache tank device according to claim 1, further comprising a double-layer magnetic iron removal structure, wherein the double-layer magnetic iron removal structure is located in the accommodating cavity and connected with the upper cover, and a diversion gap is formed inside the double-layer magnetic iron removal structure.

6. The bubble-removable slurry surge tank device of claim 5, wherein the filter is positioned between the barrier and the double layer magnetic de-ironing structure.

7. The bubble-removable slurry cache tank apparatus of claim 5, wherein the double-layered magnetic de-ironing structure is at a second predetermined angle to the upper cover, the second predetermined angle being 10 ° -20 °.

8. The bubble-free slurry tank apparatus of claim 1, wherein the filter member is a filter screen.

9. The bubble-free slurry buffer tank device according to claim 1, wherein one end of the tank body is provided with a discharge valve, and the discharge valve is communicated with the accommodating cavity.

10. A pole piece production apparatus comprising a bubble-removable slurry cache tank device according to any one of claims 1 to 9.