CN214426379U - Drying device for lithium ion battery diaphragm after extraction - Google Patents
Drying device for lithium ion battery diaphragm after extraction Download PDFInfo
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- CN214426379U CN214426379U CN202023122092.0U CN202023122092U CN214426379U CN 214426379 U CN214426379 U CN 214426379U CN 202023122092 U CN202023122092 U CN 202023122092U CN 214426379 U CN214426379 U CN 214426379U
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- air
- drying
- roller
- lithium ion
- ion battery
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- 238000001035 drying Methods 0.000 title claims abstract description 138
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 29
- 238000000605 extraction Methods 0.000 title claims abstract description 28
- 230000001502 supplementing effect Effects 0.000 claims abstract description 44
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 21
- 239000010410 layer Substances 0.000 claims description 7
- 238000011084 recovery Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 2
- 239000002344 surface layer Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Battery Electrode And Active Subsutance (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The utility model provides a drying device after lithium ion battery diaphragm extraction, a drying roller, an air supplementing bellows, an air exhaust bellows and a guide roller are arranged inside a drying box body, and an air exhaust fan and an air supplementing fan are arranged outside the drying box body; the drying box body is provided with a film inlet and a film outlet, the drying rollers are sequentially arranged from the film inlet to the film outlet, the drying rollers are arranged in two rows and are adjacently staggered up and down, and the guide roller is arranged between the rightmost drying roller in the first row and the film outlet; the air supply bellows is in one-to-one correspondence with the drying roller, the air outlet faces the drying roller, the air supply bellows is connected with the air supply fan, and the air exhaust bellows is arranged at the top and the bottom close to the film outlet and is connected with the air exhaust fan. The utility model discloses an adopt dry roller and the dry mode simultaneously of tonifying wind bellows, in the change diaphragm shrinkage of less degree, comparatively even improvement extraction back diaphragm's drying rate.
Description
Technical Field
The utility model belongs to the drying equipment field, especially a drying device behind lithium ion battery diaphragm extraction.
Background
The drying device is the indispensable device in the lithium ion battery diaphragm production process behind the diaphragm extraction, because traditional drying method only adopts a small amount of rollers to carry out the single face drying, is difficult to play even dry's purpose, leads to diaphragm two sides performance and outward appearance uniformity to reduce, and because dichloromethane is volatile under the high temperature, has pungent smell, recoverable used repeatedly. The traditional device is more and has no recovery device, so that the production cost is increased, and the environment is damaged to a certain degree.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem lie in providing a drying device behind lithium ion battery diaphragm extraction, through adopting dry roller and the dry mode simultaneously of tonifying wind bellows, in the change diaphragm shrinkage of less degree, the drying rate of comparatively even improvement extraction back diaphragm.
Realize the utility model discloses the technical solution of purpose does:
a drying device for extracted lithium ion battery diaphragms comprises a drying box body, a drying roller, an air supplementing bellows, an air exhaust fan, a guide roller, a diaphragm and an air supplementing fan, wherein the drying roller, the air supplementing bellows, the air exhaust bellows and the guide roller are arranged inside the drying box body; wherein: one side surface of the drying box body is provided with a film inlet, and the other opposite side surface is provided with a film outlet; 2n drying rollers are sequentially arranged from the film inlet to the film outlet, wherein the 2i-1 drying roller is arranged in the first row, the 2i drying roller is arranged in the second row, the 2i-1 drying roller and the 2i drying roller are arranged in a vertically staggered mode, i belongs to [1, n ], and n is a positive integer; the guide roller is arranged between the 2n-1 th drying roller and the film outlet; the extracted diaphragm enters the drying box body from the diaphragm inlet, sequentially passes through the 1 st, 2 nd, … nd, 2n drying rollers and the guide roller, and then leaves the drying box body from the diaphragm outlet; the air supplementing air boxes are arranged above the first row of drying rollers, the other n air supplementing air boxes are arranged below the second row of drying rollers, air outlets of the air supplementing air boxes face the drying rollers, and the air supplementing air boxes are connected with the air supplementing fans through air pipes; 2 air exhaust bellows set up respectively in the drying cabinet near the top and the bottom of play membrane mouth, the air exhaust bellows all links to each other with the fan of airing exhaust through the tuber pipe.
Further, the utility model discloses a drying device behind lithium ion battery diaphragm extraction, the dry roller expert has the temperature control medium for control roller surface temperature.
Further, the utility model discloses a drying device behind lithium ion battery diaphragm extraction, the control by temperature change medium is fluids such as conduction oil or pure water.
Furthermore, the utility model discloses a drying device behind lithium ion battery diaphragm extraction, the quantity of dry roller is 4-8.
Further, the utility model discloses a drying device after lithium ion battery diaphragm extraction, the wind gap of mending wind case is established to two-layer, and wherein, the superficial layer is circular air outlet, and the intermediate level is the bar air outlet, the bar air outlet size is adjustable.
Further, the utility model discloses a drying device behind lithium ion battery diaphragm extraction, the distance is adjustable for 100 supplyes wind bellows and 1000mm between the drying roller.
Further, the utility model discloses a drying device behind lithium ion battery diaphragm extraction, the wind gap of airing exhaust bellows is the circular air outlet of individual layer.
Further, the utility model discloses a drying device behind lithium ion battery diaphragm extraction, the fan of airing exhaust is connected with dichloromethane gas recovery device.
The utility model adopts the above technical scheme to compare with prior art, have following technological effect:
1. the utility model discloses a drying device behind lithium ion battery diaphragm extraction simple structure, convenient to use through the very big improvement of dual heating diaphragm heating efficiency, improves diaphragm surface quality.
2. The utility model discloses a drying device behind lithium ion battery diaphragm extraction is through adopting dry roller and the dry mode simultaneously of tonifying qi wind case, in the change diaphragm shrinkage of less degree, the drying rate of comparatively even improvement extraction back diaphragm.
3. The utility model discloses a drying device is equipped with dichloromethane gas recovery device behind lithium ion battery diaphragm extraction, has greatly reduced manufacturing cost.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the drying device after the extraction of the lithium ion battery diaphragm.
Fig. 2 is a schematic diagram of the air supply bellows structure of the drying device after the lithium ion battery diaphragm is extracted.
Reference signs mean: 1: drying box body, 2: drying roller, 3: air box for air supplement, 301: circular air outlet, 302: strip air outlet, 4: air exhaust bellows, 5: air exhaust fan, 6: guide rollers, 7: diaphragm, 8: air supply fan.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.
A drying device for extracted lithium ion battery diaphragms comprises a drying box body 1, a drying roller 2, an air supplementing bellows 3, an air exhausting bellows 4, an air exhausting fan 5, a guide roller 6, a diaphragm 7 and an air supplementing fan 8, wherein the drying roller 2, the air supplementing bellows 3, the air exhausting bellows 4 and the guide roller 6 are arranged inside the drying box body 1, and the air exhausting fan 5 and the air supplementing fan 8 are arranged outside the drying box body 1; wherein: one side surface of the drying box body 1 is provided with a film inlet, and the other opposite side surface is provided with a film outlet; 2n drying rollers 2 are sequentially arranged from a film inlet to a film outlet, wherein the 2i-1 drying rollers 2 are arranged in a first row, the 2i drying rollers 2 are arranged in a second row, the 2i-1 drying rollers 2 and the 2i drying rollers 2 are arranged in a vertically staggered mode, i belongs to [1, n ], and n is a positive integer; the guide roller 6 is arranged between the 2n-1 th drying roller 2 and the film outlet; the extracted diaphragm 7 enters the drying box body 1 from a diaphragm inlet, sequentially passes through the 1 st, 2 nd, … nd, 2n drying rollers 2 and the guide roller 6, and then leaves the drying box body 1 from a diaphragm outlet; the drying device comprises 2n air supplementing air boxes 3 and 2n drying rollers 2, wherein the n air supplementing air boxes 3 are arranged above a first row of drying rollers 2, the other n air supplementing air boxes 3 are arranged below a second row of drying rollers 2, air outlets of the air supplementing air boxes 3 face the drying rollers 2, and the air supplementing air boxes 3 are connected with an air supplementing fan 8 through air pipes; 2 air exhaust bellows 4 are respectively arranged at the top and the bottom of the drying box body 1 near the film outlet, and the air exhaust bellows 4 are connected with an air exhaust fan 5 through air pipes.
Example 1
A drying device for a lithium ion battery diaphragm after extraction is shown in figure 1 and comprises a drying box body 1, a drying roller 2, an air supplementing air box 3, an air exhaust air box 4, an air exhaust fan 5, a guide roller 6, a diaphragm 7 and an air supplementing fan 8, wherein the drying roller 2, the air supplementing air box 3, the air exhaust air box 4 and the guide roller 6 are arranged inside the drying box body 1, the air exhaust fan 5 and the air supplementing fan 8 are arranged outside the drying box body 1, and the drying box body 1 plays a role in integral support and heat preservation.
One side surface of the drying box body 1 is provided with a film inlet, and the other opposite side surface is provided with a film outlet. 6 drying roller 2 sets gradually from advancing the membrane mouth to going out the membrane mouth, and wherein, the setting of 1 st, 3, 5 drying roller 2 is in the first line, and 2 nd, 4 th, 6 drying roller 2 set up in the second line, and 1 st, 3, 5 drying roller 2 misplace the setting from top to bottom with 2 nd, 4, 6 drying roller 2 respectively. A temperature control medium is filled in the drying roller 2 and is used for controlling the surface temperature of the roller. The temperature control medium is heat conducting oil or pure water and other fluids. The guide roller 6 is arranged between the 5 th drying roller 2 and the film outlet. The extracted diaphragm 7 enters the drying box body 1 from the diaphragm inlet, sequentially passes through the 1 st, 2 nd, 3 rd, 4 th, 5 th and 6 th drying rollers 2 and the guide roller 6, and then leaves the drying box body 1 from the diaphragm outlet.
6 air supplementing bellows 3 and 6 drying roller 2 one-to-one correspondence, wherein 3 air supplementing bellows 3 set up in the top of the first row of drying roller 2, 3 air supplementing bellows 3 set up in the below of the second row of drying roller 2 in addition, and the air outlet of air supplementing bellows 3 all faces drying roller 2, and the distance between air supplementing bellows 3 and drying roller 2 is 100 and adds up 1000mm adjustable. And the air supplementing bellows 3 are connected with an air supplementing fan 8 through air pipes. As shown in fig. 2, for stabilizing the air pressure of the air supply, the air inlet of the air supply bellows 3 is set to be two layers, wherein the surface layer is a circular air outlet 301, the middle layer is a bar-shaped air outlet 302, and the bar-shaped air outlet 302 can be adjusted according to the lateral stability of the actual air pressure, so as to ensure the uniformity of the air supply in the production process and improve the performance of the diaphragm.
2 air exhaust bellows 4 are respectively arranged at the top and the bottom of the drying box body 1 near the film outlet, and the air exhaust bellows 4 are connected with an air exhaust fan 5 through air pipes. The air port of the air exhaust air box 4 is a single-layer circular air outlet. The exhaust fan 5 is connected with a dichloromethane gas recovery device.
In the drying box body 1, a temperature control medium circulates in the drying roller 2 to dry the extracted diaphragm 7, the air outlet of the air supplementing air box 3 is arranged in the direction facing the drying roller 2, and hot air is blown to the diaphragm 7 from the air outlet of the air supplementing air box 3 to assist in drying. The dichloromethane volatilized after drying is discharged from the air exhaust fan 5 through the air exhaust bellows 4, so that the stability of the air pressure in the drying box body 1 is ensured, the discharged dichloromethane is recycled through the gas recycling center, and the cost is reduced and the environment is protected while the resources are recycled.
The foregoing is only a part of the embodiments of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements can be made without departing from the principles of the present invention, and these improvements should be regarded as the protection scope of the present invention.
Claims (8)
1. A drying device for extracted lithium ion battery diaphragms is characterized by comprising a drying box body (1), a drying roller (2), an air supplementing air box (3), an air exhausting air box (4), an air exhausting fan (5), a guide roller (6), a diaphragm (7) and an air supplementing fan (8), wherein the drying roller (2), the air supplementing air box (3), the air exhausting air box (4) and the guide roller (6) are arranged inside the drying box body (1), and the air exhausting fan (5) and the air supplementing fan (8) are arranged outside the drying box body (1); wherein:
one side surface of the drying box body (1) is provided with a film inlet, and the other opposite side surface is provided with a film outlet; 2n drying rollers (2) are sequentially arranged from a film inlet to a film outlet, wherein the 2i-1 drying roller (2) is arranged in a first row, the 2i drying roller (2) is arranged in a second row, the 2i-1 drying roller (2) and the 2i drying roller (2) are arranged in a vertically staggered mode, i belongs to [1, n ], and n is a positive integer; the guide roller (6) is arranged between the 2n-1 th drying roller (2) and the film outlet; the extracted diaphragm (7) enters the drying box body (1) from the film inlet, sequentially passes through the 1 st, 2 nd, … nd, 2n drying rollers (2) and the guide roller (6) and then leaves the drying box body (1) from the film outlet;
the air supplementing air boxes (3) are in one-to-one correspondence with the drying rollers (2) of 2n, wherein the air supplementing air boxes (3) of n are arranged above the drying rollers (2) in a first row, the air supplementing air boxes (3) of the other n are arranged below the drying rollers (2) in a second row, air outlets of the air supplementing air boxes (3) face the drying rollers (2), and the air supplementing air boxes (3) are connected with the air supplementing fans (8) through air pipes;
2 air exhaust bellows (4) are respectively arranged at the top and the bottom of the drying box body (1) close to the film outlet, and the air exhaust bellows (4) are connected with an air exhaust fan (5) through air pipes.
2. The drying device for the lithium ion battery separator after extraction is characterized in that a temperature control medium is introduced into the drying roller (2) and is used for controlling the surface temperature of the roller.
3. The drying device after lithium ion battery diaphragm extraction of claim 2, characterized in that the temperature control medium is heat conduction oil or pure water.
4. The drying device for the lithium ion battery separator after extraction is characterized in that the number of the drying rollers (2) is 4-8.
5. The drying device after the lithium ion battery diaphragm extraction is characterized in that the air inlets of the air supplementing air box (3) are arranged into two layers, wherein the surface layer is a circular air outlet (301), the middle layer is a strip-shaped air outlet (302), and the size of the strip-shaped air outlet (302) is adjustable.
6. The drying device after lithium ion battery diaphragm extraction as claimed in claim 1, wherein the distance between the air supply bellows (3) and the drying roller (2) is 100-1000mm adjustable.
7. The lithium ion battery diaphragm post-extraction drying device of claim 1, characterized in that the air port of the exhaust air box (4) is a single-layer circular air outlet.
8. The drying device after the lithium ion battery diaphragm extraction of claim 1, characterized in that the exhaust fan (5) is connected with a dichloromethane gas recovery device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023122092.0U CN214426379U (en) | 2020-12-21 | 2020-12-21 | Drying device for lithium ion battery diaphragm after extraction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023122092.0U CN214426379U (en) | 2020-12-21 | 2020-12-21 | Drying device for lithium ion battery diaphragm after extraction |
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| Publication Number | Publication Date |
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| CN214426379U true CN214426379U (en) | 2021-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023122092.0U Active CN214426379U (en) | 2020-12-21 | 2020-12-21 | Drying device for lithium ion battery diaphragm after extraction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114094278A (en) * | 2021-10-20 | 2022-02-25 | 中材锂膜有限公司 | Novel lithium ion battery diaphragm drying device |
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2020
- 2020-12-21 CN CN202023122092.0U patent/CN214426379U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114094278A (en) * | 2021-10-20 | 2022-02-25 | 中材锂膜有限公司 | Novel lithium ion battery diaphragm drying device |
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