CN212383221U - Extraction device for manufacturing lithium ion battery diaphragm - Google Patents
Extraction device for manufacturing lithium ion battery diaphragm Download PDFInfo
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- CN212383221U CN212383221U CN202020747661.1U CN202020747661U CN212383221U CN 212383221 U CN212383221 U CN 212383221U CN 202020747661 U CN202020747661 U CN 202020747661U CN 212383221 U CN212383221 U CN 212383221U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides an extraction device for manufacturing a lithium ion battery diaphragm, which is provided with N extraction tanks which are sequentially arranged from front to back, wherein each extraction tank is respectively provided with an overflow outlet for the outflow of extraction liquid, and the overflow outlet of a rear side extraction tank is higher than the overflow outlet of a front side extraction tank so as to lead the extraction liquid to flow into the extraction tank at the front side; the overflow outlet of the foremost extraction tank is communicated with an extraction liquid outlet pipe, and the last extraction tank is communicated with an extraction liquid inlet pipe; the extraction device also comprises a liquid pumping pump, wherein an inlet of the liquid pumping pump is communicated to the extraction tank on the front side, and an outlet of the liquid pumping pump is communicated to the extraction tank on the rear side. The utility model discloses promote the extraction effect under the prerequisite that does not increase the extraction liquid circulation volume.
Description
Technical Field
The utility model belongs to lithium ion battery manufacture equipment field relates to an extraction device of lithium ion battery diaphragm manufacturing usefulness.
Background
Extraction is an important process in the lithium ion battery separator manufacturing process. The extraction process is carried out in an extraction tank, extraction liquid is arranged in the extraction tank, an oil film containing oil enters the extraction tank, and the oil in the oil film is extracted by the extraction liquid. In order to ensure that oil on the oil film is extracted completely, a plurality of extraction tanks are usually arranged, and the oil film sequentially passes through the plurality of extraction tanks. The liquid extraction liquid in the extraction tank enters from the last extraction tank and is discharged from the first extraction tank, and the liquid extraction liquid enters and is discharged at constant flow. However, as the production speed of the separator increases, the time for the oil film to pass through the extraction tank becomes short. If the circulation volume of the extraction liquid is not increased, the problem that oil cannot be extracted completely occurs, so that the oil content in the extracted membrane exceeds the standard. And the increase of the extraction liquid circulation amount can greatly increase the production cost.
Disclosure of Invention
To the problem, the utility model aims at providing an extraction device of lithium ion battery diaphragm manufacturing usefulness promotes the extraction effect under the prerequisite that does not increase the extraction liquid circulation volume.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
an extraction device for manufacturing a lithium ion battery diaphragm is provided with N extraction tanks which are sequentially arranged from front to back, each extraction tank is respectively provided with an overflow outlet for an extraction liquid to flow out, and the overflow outlet of a rear extraction tank is higher than the overflow outlet of a front extraction tank so that the extraction liquid flows into the extraction tank on the front side; the overflow outlet of the foremost extraction tank is communicated with an extraction liquid outlet pipe, and the last extraction tank is communicated with an extraction liquid inlet pipe; the extraction device also comprises a liquid pumping pump, wherein an inlet of the liquid pumping pump is communicated to the extraction tank on the front side, and an outlet of the liquid pumping pump is communicated to the extraction tank on the rear side.
Further, an inlet of the liquid pumping pump is communicated to the first extraction tank, and an outlet of the liquid pumping pump is communicated to the (N-1) th extraction tank.
Further, N is greater than or equal to 3.
Further, the extraction device also comprises a motor for driving the liquid pumping pump.
Furthermore, the extraction device comprises a first tank body, wherein N-1 partition plates are arranged in the first tank body, the partition plates extend upwards from the bottom of the first tank body, and the first tank body is partitioned by the N-1 partition plates to form the N extraction tanks.
Further, the height of the partition plate on the rear side is smaller than that of the partition plate on the front side, and the overflow outlet is formed above the partition plate.
Furthermore, the extract outlet pipe is connected to the front groove wall of the first groove body, the extract inlet pipe is connected to the rear groove wall of the first groove body, and the front part of the first groove body is provided with a membrane inlet for the membrane to enter.
Further, the extraction device is also provided with a drying groove positioned after the N extraction grooves.
Furthermore, the extraction device also comprises a second groove body, and the drying groove is formed in the second groove body.
Further, the lower part of the second groove body is provided with a membrane outlet through which the diaphragm passes.
The utility model adopts the above technical scheme, compare prior art and have following advantage:
the utility model discloses an extraction device, the rear side extraction tank is beaten back to partial extract in with the front side extraction tank through the liquid pump, has increased the circulation number of times of partial extract in the extraction tank in other words, has improved the extract circulation volume, can allow to improve production speed, improves production speed moreover after, has avoided the phenomenon that the extraction effect worsens. The extraction effect is improved on the premise of not increasing the circulation amount of the extraction liquid, and the cost is prevented from increasing.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is an extraction device according to an embodiment of the present invention.
Wherein the content of the first and second substances,
1. a first tank body; 10. an extraction tank; 11. a partition plate; 12. an overflow outlet; 13. an extract liquid discharge pipe; 14. an extract liquor inlet pipe; 2. pumping a liquid; 3. a motor; 4. a drying tank; 5. a cover; 6. a diaphragm.
Detailed Description
The following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings, enables the advantages and features of the invention to be more readily understood by those skilled in the art. The terms "upper" and "lower" are defined according to the conventional viewing angle of the casting device and the convenience of description.
Referring to fig. 1, the extraction apparatus for manufacturing a lithium ion battery separator according to the present embodiment includes N extraction cells 10 arranged in this order from front to back. N is preferably greater than or equal to 3, as shown in fig. 1 for four extraction cells 10. Each extraction tank 10 has an overflow outlet 12 through which the extraction liquid flows out, and the overflow outlet 12 of the rear extraction tank 10 is higher than the overflow outlet 12 of the front extraction tank 10 so that the extraction liquid flows into the front extraction tank 10. The overflow outlet 12 of any extraction tank 10 is higher than the overflow outlet 12 on the front side, i.e. the liquid level of the extraction liquid in the extraction tank 10 on the rear side is higher than the liquid level in the extraction tank 10 on the front side, so that the extraction liquid flows from the extraction tank 10 on the rear side to the extraction tank 10 on the front side.
In this embodiment, the extraction apparatus includes a first tank 1, and the N extraction tanks 10 are formed in the first tank 1. Specifically, N-1 partition plates 11 (specifically, three partition plates 11 in this embodiment) are disposed in the first tank body 1, the partition plates 11 extend upward from the bottom of the first tank body 1, and the first tank body 1 is partitioned by the N-1 partition plates 11 to form N extraction tanks 10. Wherein, the first extraction tank 10 is formed in front of the front tank wall of the first tank body 1 and the first clapboard 11, and the fourth extraction tank 10 is formed between the third clapboard 11 and the rear tank wall of the first tank body 1.
The height of the partition 11 on the rear side is smaller than the height of the partition 11 on the front side to form an overflow outlet 12. That is, the height of each partition 11 is sequentially increased from front to back. The liquid level in the front side extraction tank 10 is lower than the liquid level in the rear side extraction tank 10.
The overflow outlet 12 of the foremost extraction tank 10 is communicated with an extract outlet pipe 13, and the rearmost extraction tank 10 is communicated with an extract inlet pipe 14. Specifically, the extract outlet pipe 13 is connected to the front tank wall of the first tank body 1, and the extract inlet pipe 14 is connected to the rear tank wall of the first tank body 1. The new extract liquid enters the last extraction tank 10 from an extract liquid inlet pipe 14, flows into the third extraction tank 10 from the overflow outlet 12 of the last extraction tank 10, flows into the second extraction tank 10 from the overflow outlet 12 of the third extraction tank 10, flows into the first extraction tank 10 from the overflow outlet 12 of the second extraction tank 10, and is finally discharged from an extract liquid discharge pipe 13 on the front tank wall of the first tank body 1.
The extraction device also comprises a liquid pumping pump 2, wherein an inlet of the liquid pumping pump 2 is communicated to the extraction tank 10 at the front side, and an outlet of the liquid pumping pump 2 is communicated to the extraction tank 10 at the rear side. Further, an inlet of the pumping pump 2 is connected to the first extraction tank 10, and an outlet of the pumping pump 2 is connected to the (N-1) th extraction tank 10, which is specifically the third extraction tank in this embodiment. The extraction device further comprises a motor 3 for driving the pumping pump 2. The extraction liquid in the first extraction tank is pumped back to the third extraction tank by the liquid pumping pump 2, so that the circulation times of the extraction liquid are increased.
The extraction plant also has a drying tank 4 located after the N extraction tanks 10. Specifically, the extraction device further comprises a second groove body, and the drying groove 4 is formed in the second groove body. The front groove wall of the second groove body and the rear groove wall of the first groove body 1 are arranged at intervals and are connected with each other at the upper edge, and the extract liquor inlet pipe 14 is arranged in the interval between the first groove body 1 and the second groove body.
The front part of the first tank body 1 is provided with a membrane inlet for the membrane to enter, and the lower part of the second tank body is provided with a membrane outlet for the membrane 6 to pass through. A plurality of traction rollers are respectively arranged in each extraction tank 10 and the drying tank 4, and the diaphragm 6 enters the extraction device from a film inlet and passes through each traction roller to sequentially pass through the first extraction tank, the second extraction tank, the third extraction tank, the fourth extraction tank and the drying tank 4 from front to back.
A cover 5 is covered above the first tank body 1 and the second tank body to reduce the extraction liquid volatilized to the outside.
The working process of the extraction device is as follows: the oil film containing oil enters the extraction tank 10 at the foremost side, the oil film sequentially passes through the extraction tanks 10 to extract the oil in the oil film, and then the oil film enters the drying tank 4 to dry the volatile extraction liquid on the surface of the film, so that a dry film is formed. And new extraction liquid enters from the fourth extraction tank and is discharged from the first extraction tank, and the new extraction liquid continuously enters and is discharged at a constant flow rate, so that the oil film can be extracted completely and smoothly. And the extraction liquid overflows from the fourth extraction tank to the third extraction tank, and finally overflows to the first extraction tank by repeating the analogy, and then is discharged, and the extraction liquid level is gradually reduced from the fourth extraction tank to the first extraction tank so as to ensure that the overflow is smooth. And (3) additionally arranging a liquid pumping pump 2, setting a proper liquid pumping amount, pumping part of the extraction liquid in the first extraction tank back to the third extraction tank, equivalently increasing the circulation times of part of the extraction liquid in the extraction tank 10, gradually overflowing the extraction liquid from the first extraction tank into the third extraction tank to the first extraction tank again, and then discharging the extraction liquid out of the extraction tank 10.
In the extraction device, the circulation quantity of the extraction liquid is increased, the production speed can be allowed to be increased, and the phenomenon that the extraction effect is poor is avoided after the production speed is increased. The extraction effect is improved on the premise of not increasing the circulation amount of the extraction liquid, and the cost is prevented from increasing.
The above embodiments are merely illustrative of the technical concepts and features of the present invention, and are a preferred embodiment, which is intended to enable persons skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention cannot be limited thereby.
Claims (10)
1. The utility model provides an extraction device of lithium ion battery diaphragm manufacturing usefulness, has a N extraction tank that sets gradually from the front to back which characterized in that: each extraction tank is respectively provided with an overflow outlet for the extraction liquid to flow out, and the overflow outlet of the rear extraction tank is higher than the overflow outlet of the front extraction tank so that the extraction liquid flows into the front extraction tank; the overflow outlet of the foremost extraction tank is communicated with an extraction liquid outlet pipe, and the last extraction tank is communicated with an extraction liquid inlet pipe; the extraction device also comprises a liquid pumping pump, wherein an inlet of the liquid pumping pump is communicated to the extraction tank on the front side, and an outlet of the liquid pumping pump is communicated to the extraction tank on the rear side.
2. The extraction apparatus of claim 1, wherein: the inlet of the liquid pumping pump is communicated to the first extraction tank, and the outlet of the liquid pumping pump is communicated to the (N-1) th extraction tank.
3. The extraction apparatus according to claim 1 or 2, wherein: n is greater than or equal to 3.
4. The extraction apparatus of claim 1, wherein: the extraction device also comprises a motor for driving the liquid pumping pump.
5. The extraction apparatus of claim 1, wherein: the extraction device comprises a first tank body, wherein N-1 partition plates are arranged in the first tank body, the partition plates extend upwards from the bottom of the first tank body, and the first tank body is partitioned by the N-1 partition plates to form the N extraction tanks.
6. The extraction apparatus of claim 5, wherein: the height of the clapboard at the rear side is less than that of the clapboard at the front side, and the overflow outlet is formed above the clapboard.
7. The extraction apparatus of claim 5, wherein: the extraction liquid outlet pipe is connected to the front groove wall of the first groove body, the extraction liquid inlet pipe is connected to the rear groove wall of the first groove body, and the front part of the first groove body is provided with a membrane inlet for the membrane to enter.
8. The extraction apparatus of claim 1, wherein: the extraction device is also provided with a drying groove positioned after the N extraction grooves.
9. The extraction apparatus of claim 8, wherein: the extraction device also comprises a second groove body, and the drying groove is formed in the second groove body.
10. The extraction apparatus of claim 9, wherein: and a membrane outlet for the diaphragm to pass through is formed in the lower part of the second groove body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020747661.1U CN212383221U (en) | 2020-05-08 | 2020-05-08 | Extraction device for manufacturing lithium ion battery diaphragm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020747661.1U CN212383221U (en) | 2020-05-08 | 2020-05-08 | Extraction device for manufacturing lithium ion battery diaphragm |
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| CN212383221U true CN212383221U (en) | 2021-01-22 |
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| CN202020747661.1U Active CN212383221U (en) | 2020-05-08 | 2020-05-08 | Extraction device for manufacturing lithium ion battery diaphragm |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022242403A1 (en) * | 2021-05-19 | 2022-11-24 | 浙江毅聚新材料有限公司 | Spinning continuous counter-current extraction system |
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- 2020-05-08 CN CN202020747661.1U patent/CN212383221U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022242403A1 (en) * | 2021-05-19 | 2022-11-24 | 浙江毅聚新材料有限公司 | Spinning continuous counter-current extraction system |
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