CN201950057U - Waste gas recovery device for lithium battery electrode sheet coating equipment - Google Patents
Waste gas recovery device for lithium battery electrode sheet coating equipment Download PDFInfo
- Publication number
- CN201950057U CN201950057U CN2010206709150U CN201020670915U CN201950057U CN 201950057 U CN201950057 U CN 201950057U CN 2010206709150 U CN2010206709150 U CN 2010206709150U CN 201020670915 U CN201020670915 U CN 201020670915U CN 201950057 U CN201950057 U CN 201950057U
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- solvent
- waste gas
- nmp
- condenser
- lithium battery
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Abstract
The utility model discloses a waste gas recovery device for lithium battery electrode sheet coating equipment, which carries out high-efficiency exhaust-free recovery with the adoption of an addition and condensation method. The waste gas recovery device for the lithium battery electrode sheet coating equipment comprises a suction hood, a booster, a condenser, a solvent storage groove, a solvent pump and a solvent recovery barrel, wherein the suction hood is arranged above the coating equipment, the suction hood, the booster and the condenser are sequentially connected by a ventilation pipeline, the condenser is connected with the solvent storage groove by a liquid flowing pipeline, the solvent pump is connected with the solvent storage groove by a pipeline and then is connected with the solvent recovery barrel, and the solvent storage groove is provided with a waste gas outlet. The NMP (N-methyl-2-pyrrolidone) solvent recycling and reusing system is mainly used for adsorbing NMP waste gas exhausted in the coating production process, and NMP in the waste gas is changed into liquid with the utilization of condensation to be recycled and reused. If calculated with an amount for producing two batches of NMP per day in the company as 160Kg and saved capital per year as 128*52*5*27.5=91.52 million yuan (calculated with a year as 52 weeks, a week as 5 days and a kilometer as 27.5 yuan), a great deal of the production cost can be saved for the enterprise, the energy is saved, and the efficiency is high.
Description
Technical field
The utility model relates to a kind of gas recovery system, relates in particular to a kind of retracting device that is used to reclaim NMP (N-methyl pyrrolidone) waste gas.
Background technology
N-methyl pyrrolidone (NMP) is a colourless transparent liquid, 202 ℃ of boiling points, and 95 ℃ of flash-points can be miscible with water, is dissolved in ether, and acetone and various organic solvent have the ammonia flavor slightly, and stable chemical performance is not corroded carbon steel, aluminium, and copper is corrosive slightly.It is low to have viscosity, chemical stability and Heat stability is good, the polarity height, volatility is low, can with the unlimited advantage such as miscible of water and many organic solvents.At present, to used, dirty useless methyl pyrrolidone adds the vacuum decompression system by solvent recovery machine mostly and recycles.It is according to being based on: because of its boiling point than higher, so can not adopt direct recovery method,, can reduce the recovery heating-up temperature by vacuum decompression, guarantee to reclaim quality, improve and reclaim safety coefficient.
At the lithium battery production field, anode sizing agent generally adopts the NMP liquid flux, the size of its utilization rate is the cardinal task that each battery production manufacturer is concerned about, when coating is finished and is produced in a collection of anode sizing agent design, usually traditional method is to adopt the method for high temperature heating to remove nmp solvent (120 ℃ of temperature, time 4min).NMP loses with the form of gas, has consumed a large amount of nmp solvents in the whole process, has also been wasted with the nmp solvent of gas evaporation.Simultaneously, the utmost point is unfavorable for energy-conserving and environment-protective.
The utility model content
The utility model provides a kind of waste gas recovering device that adopts increase, condensation method to carry out efficiently, do not have the lithium battery pole slice coating apparatus of discharging recovery at above problem.
The technical solution of the utility model is: comprise suspended hood, supercharger, condenser, solvent storage tank, solvent pump and solvent recovery bucket; Described suspended hood is located at the top of described coating apparatus, and suspended hood, supercharger and condenser adopt breather line to link to each other successively; Described condenser connects described solvent storage tank by the fluid-through tube road again, and described solvent pump connects the solvent storage tank by pipeline, and described solvent pump connects the solvent recovery bucket again; Described solvent storage tank is provided with waste gas outlet.
Described waste gas outlet place also is provided with filter.
The utility model nmp solvent reclaims the cycling and reutilization system, is mainly used in the NMP waste gas of discharging in the absorption coating production process, and utilizes condensation that the NMP in the waste gas is become the liquids recovery cycling and reutilization.In the application process, open coating machine and NMP retracting device simultaneously, after coating machine starts, with the aluminium strip of slurry with 4m/min at the uniform velocity, in the coater oven of 120 ℃ of constant temperature, pass through, because therefore temperature drift in the baking oven can produce a large amount of steams, this steam forms water conservancy diversion through blower fan, pass through condenser system, will be converted into liquid NMP and reclaim, the NMP liquid after will reclaiming at last puts into production use once more, and recovery utilization rate is greater than 80%.Greatly reduce production cost on this basis, as every batch of consumption that uses 80KgNMP just can reclaim 64KgNMP, and the actual production consumption only is 16KG/ batch, has saved cost greatly.If producing 2 batches of NMP consumptions every day according to my company average is 160Kg, economize on the use of funds every year: ten thousand yuan of 128*52*5*27.5=91.52 (annual 52 weeks, 5 days weekly, 27.5 yuan of calculating of per kilogram), saved a large amount of production costs, efficient energy-saving to enterprise.
Description of drawings
Fig. 1 is a structural representation of the present utility model
1 is coating apparatus among the figure, the 2nd, and suspended hood, the 3rd, breather line, the 4th, solvent storage tank, the 5th, waste gas outlet, the 6th, solvent pump, the 7th, solvent recovery bucket, the 8th, cooling tower, the 9th, condenser, the 10th, supercharger.
The specific embodiment
The utility model comprises suspended hood 2, supercharger 10, condenser 9 (coupled have cooling tower 8), solvent storage tank 4, solvent pump 6 and solvent recovery bucket 7 as shown in Figure 1; Described suspended hood 2 is located at the top of described coating apparatus 1, and suspended hood 2, supercharger 10 and condenser 9 adopt breather line 3 to link to each other successively; Described condenser 9 connects described solvent storage tank 4 by the fluid-through tube road again, and described solvent pump 6 connects solvent storage tank 4 by pipeline, and described solvent pump 6 connects solvent recovery bucket 7 again; Described solvent storage tank 4 is provided with waste gas outlet 5.
Described waste gas outlet 5 places also are provided with filter.
The utility model is mainly used in vaporized gas when reclaiming the pole piece oven dry, by suspended hood (containing exhaust blower), feed back to pneumatic filter, by supercharger, after the mutual exchange cooling of existing NMP gas through condenser and cooling tower, wherein fraction gas is the pure qi (oxygen) discharging again, most of gas becomes liquid, through solvent pump, flow into the solvent storage tank and store recycling.
Claims (2)
1. the waste gas recovering device of lithium battery pole slice coating apparatus is characterized in that, comprises suspended hood, supercharger, condenser, solvent storage tank, solvent pump and solvent recovery bucket; Described suspended hood is located at the top of described coating apparatus, and suspended hood, supercharger and condenser adopt breather line to link to each other successively; Described condenser connects described solvent storage tank by the fluid-through tube road again, and described solvent pump connects the solvent storage tank by pipeline, and described solvent pump connects the solvent recovery bucket again; Described solvent storage tank is provided with waste gas outlet.
2. the waste gas recovering device of lithium battery pole slice coating apparatus according to claim 1 is characterized in that, described waste gas outlet place also is provided with filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206709150U CN201950057U (en) | 2010-12-20 | 2010-12-20 | Waste gas recovery device for lithium battery electrode sheet coating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206709150U CN201950057U (en) | 2010-12-20 | 2010-12-20 | Waste gas recovery device for lithium battery electrode sheet coating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201950057U true CN201950057U (en) | 2011-08-31 |
Family
ID=44494184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206709150U Expired - Fee Related CN201950057U (en) | 2010-12-20 | 2010-12-20 | Waste gas recovery device for lithium battery electrode sheet coating equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201950057U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102389947A (en) * | 2011-11-18 | 2012-03-28 | 冯新林 | Triethylamine gas generation and recovery equipment |
| CN105797420A (en) * | 2016-03-23 | 2016-07-27 | 东莞塔菲尔新能源科技有限公司 | NMP gas recovery system and technology thereof |
-
2010
- 2010-12-20 CN CN2010206709150U patent/CN201950057U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102389947A (en) * | 2011-11-18 | 2012-03-28 | 冯新林 | Triethylamine gas generation and recovery equipment |
| CN102389947B (en) * | 2011-11-18 | 2013-04-24 | 冯新林 | Triethylamine gas generation and recovery equipment |
| CN105797420A (en) * | 2016-03-23 | 2016-07-27 | 东莞塔菲尔新能源科技有限公司 | NMP gas recovery system and technology thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20131220 |