CN208066034U - The processing system for the exhaust gas that lithium battery recovery processing generates in the process - Google Patents
The processing system for the exhaust gas that lithium battery recovery processing generates in the process Download PDFInfo
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- CN208066034U CN208066034U CN201721882583.0U CN201721882583U CN208066034U CN 208066034 U CN208066034 U CN 208066034U CN 201721882583 U CN201721882583 U CN 201721882583U CN 208066034 U CN208066034 U CN 208066034U
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- 238000012545 processing Methods 0.000 title claims abstract description 53
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000011084 recovery Methods 0.000 title claims abstract description 32
- 238000001914 filtration Methods 0.000 claims abstract description 45
- 238000010521 absorption reaction Methods 0.000 claims abstract description 32
- 238000001035 drying Methods 0.000 claims abstract description 16
- 239000003792 electrolyte Substances 0.000 claims abstract description 15
- 239000007789 gas Substances 0.000 claims description 95
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 34
- 238000001179 sorption measurement Methods 0.000 claims description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 22
- 239000002808 molecular sieve Substances 0.000 claims description 22
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 22
- 238000001816 cooling Methods 0.000 claims description 17
- 229910052757 nitrogen Inorganic materials 0.000 claims description 17
- 239000003610 charcoal Substances 0.000 claims description 15
- 239000002250 absorbent Substances 0.000 claims description 13
- 230000002745 absorbent Effects 0.000 claims description 13
- 239000003960 organic solvent Substances 0.000 claims description 11
- 238000003795 desorption Methods 0.000 claims description 10
- 239000000428 dust Substances 0.000 claims description 10
- 230000003213 activating effect Effects 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 5
- 230000001172 regenerating effect Effects 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 230000003628 erosive effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000006978 adaptation Effects 0.000 abstract 1
- 208000028659 discharge Diseases 0.000 description 8
- 238000004064 recycling Methods 0.000 description 8
- 239000002253 acid Substances 0.000 description 7
- 229910052736 halogen Inorganic materials 0.000 description 5
- 150000002367 halogens Chemical class 0.000 description 5
- 238000009833 condensation Methods 0.000 description 4
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
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- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 1
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
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- 230000033228 biological regulation Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
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- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
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- Secondary Cells (AREA)
- Drying Of Gases (AREA)
- Hybrid Cells (AREA)
Abstract
The utility model discloses the processing systems for the exhaust gas that lithium battery recovery processing generates in the process, including dry-type filtering apparatus, cryogenic system and secondary absorption device, the access port of dry-type filtering apparatus is connected with cleaner, cleaner is connected with level-one breaker, multiple stage crushing sorting unit and the electrolyte drying unit in lithium battery recovery and processing system respectively, dry-type filtering apparatus is connected with cryogenic system and secondary absorption device respectively, cryogenic system is connected with secondary absorption device, and secondary absorption device is equipped with gas discharge outlet.It the advantage is that, the exhaust gas of each processing step of lithium battery recovery and processing system is separately handled, for different exhaust gas properties, using different recovery processing techniques, recycle more efficient, the more unstable operating mode of adaptation enterprise discharge exhaust gas, with the energy consumption of reasonably optimizing complete equipment.
Description
Technical field
The utility model is related to be produced during cell exhaust gases processing technology field more particularly to a kind of recovery processing of lithium battery
The processing system of raw exhaust gas.
Background technology
Recently, country encourages ready to appear, the new-energy automobile for enabling this burning hot of personal purchase new-energy automobile policy
Association industry heats up once again.New-energy automobile includes mainly upstream lithium battery and motor raw material, middle reaches motor, automatically controlled, battery
And downstream vehicle, three links of charging pile and operation.Middle reaches link battery industry chain is relatively complicated, mainly by anode,
Cathode, diaphragm and electrolyte composition.Zhong Shang industrial research institute publication report display, it is contemplated that domestic new-energy automobile was total in 2017
Yield is expected to reach 66.1 ten thousand, and corresponding power battery demand reaches 32.5GWh, the year two thousand twenty country new-energy automobile total output
It is expected to reach 2,000,000, corresponding power battery demand reaches 120.8GWh.It is expected that 2017-2020 new-energy automobiles are multiple every year
It is about 44.6% to close speedup, and power battery demand speedup compound every year is about 54.9%, it is contemplated that power battery cost declined
Market space speedup compound every year is about 36.8%.With popularizing for new-energy automobile, dynamic lithium battery usage amount is also at double
Increase.Although dynamic lithium battery service life and service life get well than conventional lead acid battery, nickel-cadmium cell, with service life
The replacement amount of motive force of growth lithium battery also slowly increase.Replaced lithium battery need to be recycled just must to battery into
Row dismantling, material sort out recycling.A large amount of organic solvent evaporates during dismantling, if this part organic solvent without
Crossing processing can serious pollution environment.
Currently, the processing method of organic exhaust gas mainly has combustion method, absorption method, biological clarification, corona method and plasma
Body method of purification etc..It is disassembled due to battery and contains halogens in exhaust gas, burning will produce the substances such as carcinogenic bioxin, and halogen
The strong acid that element is formed can erosive burning equipment.Due to the organic exhaust gas higher concentration that dismantling process generates, simply use
Absorption is extremely difficult to national secondary discharge standard.Corona method and plasma for purification method, technology are not mature enough, to high-concentration waste
Gas disposal is extremely inefficient can not to reach regulation effect.In the above treatment process, all exist since halogen chance water is formed in exhaust gas
The etching apparatus of strong acid causes the possibility that technique is unable to operate normally.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of lithium batteries to be recycled process
The processing system of the exhaust gas of middle generation, for being recycled to the organic matter in exhaust gas.
The purpose of this utility model adopts the following technical scheme that realization：
The processing system of exhaust gas that lithium battery recovery processing generates in the process, including dry-type filtering apparatus, cryogenic system and
Secondary absorption device, the access port of the dry-type filtering apparatus are connected with cleaner, the cleaner respectively with lithium battery
Level-one breaker, multiple stage crushing sorting unit in recovery and processing system are connected with electrolyte drying unit, the dry type
Filter plant is connected with the cryogenic system and the secondary absorption device respectively, the cryogenic system and the secondary absorption
Device is connected, and the secondary absorption device is equipped with gas discharge outlet.
Further, the cleaner is multitube parallel cyclone dust collectors, is made of erosion resistant corrosion material.
Further, the dry-type filtering apparatus includes two molecular sieve filtration towers being arranged in parallel, and the molecule is sieved through
The entrance and exit of filter tower is connected separately with switching device, another keeps activation again when one of molecular sieve filtration tower uses
Raw spare, the molecular sieve only adsorption moisture in the molecular sieve filtration tower.
Further, heat exchanger is equipped with before the cleaner, described in the exhaust gas process that electrolyte drying unit is discharged
Enter the cleaner and the molecular sieve filtration tower after the precooling of heat exchanger, filters off the moisture in exhaust gas, exhaust gas is made to reveal
Point is less than -40 DEG C.
Further, the cryogenic system includes low dew-point dehumidifying group, for analysing the organic solvent condensate in gas
Go out.
Further, the low dew-point dehumidifying group includes multi-stage heat exchanger, refrigerator system, cooling tower and gas-liquid separation
Tank, the multi-stage heat exchanger are connected with the dry-type filtering apparatus, and the multi-stage heat exchanger is connected with the refrigerator system
It connects, the refrigerator system is connected with the cooling tower and the knockout drum respectively, by multi-stage heat exchanger and refrigeration
Temperature≤- 35 DEG C of the exhaust gas of machine system.
Further, the secondary absorption device includes two absorbent charcoal adsorption tanks in parallel, and one of activated carbon is inhaled
Another keeps activating and regenerating spare when attached tank uses, and the absorbent charcoal adsorption tank is equipped with hot nitrogen and equipment is desorbed, for heating
Regenerated carbon, the secondary absorption device, which is equipped with, returns gas channel, and the gas channel of returning connects the secondary absorption device and institute
The access port of dry-type filtering apparatus is stated, the absorbent charcoal adsorption tank is sent desorption exhaust gas to the dry type by the gas channel of returning
Filter plant.
Further, system further includes nitrogen making machine, and the nitrogen of generation is in lithium battery recovery and processing system, the dry filter
It circulates between equipment, the cryogenic system and the secondary absorption device.
Compared with prior art, the beneficial effects of the utility model are：
(1) exhaust gas of each processing step of lithium battery recovery and processing system is separately handled, it is special for different exhaust gas
Property, using different recovery processing techniques, recycling is more efficient, more adapts to the unstable operating mode of enterprise's discharge exhaust gas, with rationally excellent
Change the energy consumption of complete equipment.
(2) moisture is not introduced in entire processing procedure, while exhaust gas is dried, the halogen solved in exhaust gas meets water
The problem of etching apparatus of formation strong acid causes technique to be unable to operate normally；
(3) dew point of the exhaust gas after drying is less than the cooling temperature of cryogenic system, then uses cryogenic system, and recycling is most of
Organic solvent, reduce carbon emission realize green circulation economy.
Description of the drawings
Fig. 1 is the flow diagram of the utility model embodiment；
Fig. 2 is the structural schematic diagram of Tthe utility model system embodiment.
In figure：10, dry-type filtering apparatus；11, molecular sieve filtration tower；12, switching device；20, cryogenic system；21, heat is handed over
Parallel operation；22, low dew-point dehumidifying group；23, multi-stage heat exchanger；24, refrigerator system；25, cooling tower；26, knockout drum；
30, secondary absorption device；31, absorbent charcoal adsorption tank；32, gas discharge outlet；40, cleaner；50, lithium battery recovery processing system
System；51, level-one breaker；52, multiple stage crushing sorting unit；53, electrolyte drying unit；60, nitrogen making machine.
Specific implementation mode
In the following, in conjunction with attached drawing and specific implementation mode, the utility model is described further, it should be noted that
Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
In the description of the present invention, it should be noted that for the noun of locality, if any term "center", " transverse direction ",
" longitudinal direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top",
The indicating positions such as "bottom", "inner", "outside", " clockwise ", " counterclockwise " and position relationship are orientation based on ... shown in the drawings or position
Relationship is set, narration the utility model is merely for convenience of and simplifies to describe, do not indicate or imply the indicated device or element
It must have a particular orientation, constructed and operated with particular orientation, should not be understood as the specific protection model for limiting the utility model
It encloses.
In addition, being used for description purposes only if any term " first ", " second ", it is not understood to indicate or imply relatively heavy
The property wanted or the quantity for implicitly indicating technical characteristic." first " is defined as a result, " second " feature can be expressed or implicit include
One or more this feature, in the utility model description, " several " are meant that two or more, unless otherwise bright
It is really specific to limit.
In the present invention, except as otherwise clear stipulaties and restriction, if any term " assembling ", " connected ", " connection " term
It should go to understand as broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can also be machine
Tool connects；It can be directly connected, can also be to be connected by intermediary, can be connected inside two elements.For
For those of ordinary skill in the art, it can understand that above-mentioned term in the present invention specific contains as the case may be
Justice.
As shown in Figure 1 and Figure 2, the processing system for the exhaust gas that lithium battery recovery processing generates in the process, including dry filter are set
Standby 10, cryogenic system 20 and secondary absorption device 30, the access port of dry-type filtering apparatus 10 are connected with cleaner 40, and dedusting is set
Standby 40 dry with level-one breaker 51, multiple stage crushing sorting unit 52 and the electrolyte in lithium battery recovery and processing system 50 respectively
Equipment for drying 53 is connected, and dry-type filtering apparatus 10 is connected with cryogenic system 20 and secondary absorption device 30 respectively, cryogenic system
20 are connected with secondary absorption device 30, and secondary absorption device 30 is equipped with gas discharge outlet 32.
The exhaust gas of each processing step of lithium battery recovery and processing system 50 is separately handled, it is special for different exhaust gas
Property, using different recovery processing techniques, recycling is more efficient, more adapts to the unstable operating mode of enterprise's discharge exhaust gas, with rationally excellent
Change the energy consumption of complete equipment；Moisture is not introduced in entire processing procedure, while exhaust gas is dried, solves the halogen in exhaust gas
The problem of etching apparatus that element meets water formation strong acid causes technique to be unable to operate normally；The dew point of exhaust gas after drying is less than deep cooling
The cooling temperature of device 20, then cryogenic system 20 is used, most organic solvent is recycled, carbon emission is reduced and realizes green circulatory
It is economical.
Cleaner 40 is multitube parallel cyclone dust collectors, is made of erosion resistant corrosion material, can prevent hexafluoro phosphorus
Sour lithium meets the corrosion that water forms strong acid.Dust removal mechanism is that dust-contained airflow is made to rotate, by means of centrifugal force by grit from gas
Wall is detached and be trapped in stream, then so that grit is fallen into collector by gravity, is suitable for non-stickiness and non-fiber
The removal of dust is used for removing 5 μm or more of particle mostly, and the particle of 3 μm of multitube parallel cyclone dust collectors pair also has 80
~85% efficiency of dust collection more can ensure that the safe and stable, efficient of subsequent treatment process.
Since exhaust gas subsequently wants deep condensation to -35 DEG C, and collects the exhaust gas to come and contain a large amount of moisture, these moisture
Can not only coagulate frost in the evaporator of cryogenic system and freeze causes gas passage to block, and these moisture encounter in electrolyte
The electrolyte such as lithium hexafluoro phosphate can ionize and generate strong acid serious corrosion is caused to equipment, include therefore, in this system dry type
Filter plant 10, dry-type filtering apparatus 10 include two molecular sieve filtration towers 11 being arranged in parallel, and molecular sieve filtration tower 11 enters
Mouth and outlet are connected separately with switching device 12, another keeps activating and regenerating standby when one of molecular sieve filtration tower 11 uses
With the molecular sieve only adsorption moisture in molecular sieve filtration tower 11, it is ensured that the progress of whole system smooth sequential.When a certain amount of useless
After gas is by one of molecular sieve filtration tower 11, the molecular sieve filtration tower 11 is closed, which lives
It is spare to change regeneration, switching device 12 starts, and follow-up exhaust gas enters another molecular sieve filtration tower 11, is filtered.
Heat exchanger 21 is equipped with before cleaner 40, it acts as carry out the exhaust gas that electrolyte drying unit 53 is discharged
Precooling, makes at a temperature below 5 DEG C, and cleaner 40 and molecular sieve filtration tower 11, filter are entered after the precooling of over-heat-exchanger 21
The moisture in exhaust gas is removed, exhaust dew point is made to be less than -40 DEG C.
Exhaust gas and desorption exhaust gas is discharged primarily directed to electrolyte drying unit 53 in cryogenic system 20, and in these exhaust gas
Main component is the electrolyte that carbonates form in proportion, and characteristic is higher concentration, is saturated according in its physical characteristic
The data of vapour pressure, by waste gas condensation to -35 DEG C of recyclable most organic solvents, therefore cryogenic system 20 includes low dew point
Dehumidify unit 22, and for the organic solvent condensate in gas to be precipitated, low dew-point dehumidifying group 22 is specifically for organic solvent
The efficient unit that the full explosion-proof environment of recycling research and development uses, and be arranged and communicated with the online TVOC instrument in exhaust main road, it can intelligence
It can carry out load, the unloading of deep cooling unit.
More specifically, low dew-point dehumidifying group 22 is gentle including multi-stage heat exchanger 23, refrigerator system 24, cooling tower 25
Liquid knockout drum 26, multi-stage heat exchanger 23 are connected with dry-type filtering apparatus 10, and multi-stage heat exchanger 23 is connected with refrigerator system 24
It connects, refrigerator system 24 is connected with cooling tower 25 and knockout drum 26 respectively, by multi-stage heat exchanger 23 and refrigeration machine system
Temperature≤- 35 DEG C of the exhaust gas of system 24.Cooling tower 25 is that refrigerator system 24 provides cooling water, and knockout drum 26 is for collecting
The organic solvent of condensation.
By 10 filtered exhaust gas of dry-type filtering apparatus and by 20 condensed exhaust gas of cryogenic system, also containing a certain amount of
Organic matter, discharging standards are not achieved, therefore, exhaust gas also need carry out adsorption step, into secondary absorption device 30, two level
Adsorbent equipment 30 includes two absorbent charcoal adsorption tanks 31 in parallel, another keeps when one of absorbent charcoal adsorption tank 31 uses
Activating and regenerating is spare.With activated carbon adsorption organic solvent, can further recycling design, so that exhaust is met national environmental standard.
It before above-mentioned exhaust gas enters absorbent charcoal adsorption tank 31, can be mixed by mute flow mixing device, make the useless of different organic concentrations
Gas is uniformly mixed, and is conducive to activated carbon adsorption.
Due to adsorbent with the superposition efficiency and adsorbance of time can be slowly decline, efficiency drop to country discharge mark
It needs to regenerate activated carbon before accurate, therefore, absorbent charcoal adsorption tank 31 is equipped with hot nitrogen and equipment is desorbed, with heated nitrogen pair
Activated carbon carries out desorption and regeneration, avoids the possibility for causing activated carbon to catch fire using hot dry air Detachment Activity charcoal.Secondary absorption
Device 30 is equipped with and returns gas channel, returns the access port of gas channel connection secondary absorption device 30 and dry-type filtering apparatus 10, activated carbon
Adsorption tanks 31 are sent exhaust gas is desorbed to dry-type filtering apparatus 10 by returning gas channel, are entering 20 condensing recovery of cryogenic system.This
The protection gas of 50 leading portion of lithium battery recovery and processing system can be used in the nitrogen at place, such as the nitrogen to circulate in level-one breaker 51
Gas can effectively be used to regenerate activated carbon, reduce investment outlay with energy consumption since this part nitrogen organic component content is low.
System further includes nitrogen making machine 60, and the nitrogen of generation is in lithium battery recovery and processing system 50, dry-type filtering apparatus 10, depth
It circulates between device for cooling 20 and secondary absorption device 30, ensures the safety of whole system.
A kind of processing method for the exhaust gas that lithium battery recovery processing generates in the process, includes the following steps,
Dust removal step：The exhaust gas difference that level-one breaker, multiple stage crushing sorting unit and electrolyte drying unit generate
Non-interference into cleaner, the solid powder and clast in exhaust gas are through being segregated into collector；
Drying steps：Gas enters dry-type filtering apparatus, into one of molecular sieve filtration tower 11, is adsorbed by molecular sieve
Moisture in gas makes the dew point of the gas after drying be less than -40 DEG C, after dry, by level-one breaker and multiple stage crushing point
What screening device generated enters adsorption step by the exhaust gas of dust removal step, the process dust removal step generated by electrolyte drying unit
Exhaust gas and by secondary absorption device 30 desorption generate desorption exhaust gas enter deep cooling recycling step；
Deep cooling recycling step：Gas after drying enters cryogenic system, and gas is condensed to -35 DEG C, makes having in gas
Solvent condensation；
Adsorption step：Gas enters two absorbent charcoal adsorption tanks in secondary absorption device and replaces to the organic matter in gas
Adsorption and desorption effect is carried out, after reaching standard, gas is discharged via gas discharge outlet, is such as not up to standard, then continues on through and make a living
Property charcoal suction-operated, until up to standard, the desorption exhaust gas of generation enters dry-type filtering apparatus and cryogenic system via gas channel is returned；
Whole process carries out under the protection of nitrogen.
Desorption mode in adsorption step is：Regeneration desorption is carried out to activated carbon using the nitrogen of heating, nitrogen is lithium electricity
The protection gas of pond recovery and processing system leading portion.
The above embodiment is only preferred embodiments of the present invention, cannot be protected with this to limit the utility model
Range, the variation of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacing belongs to
In the utility model range claimed.
Claims (8)
1. the processing system for the exhaust gas that lithium battery recovery processing generates in the process, which is characterized in that including dry-type filtering apparatus, depth
The access port of device for cooling and secondary absorption device, the dry-type filtering apparatus is connected with cleaner, the cleaner difference
It is connected with level-one breaker, multiple stage crushing sorting unit and the electrolyte drying unit in lithium battery recovery and processing system,
The dry-type filtering apparatus is connected with the cryogenic system and the secondary absorption device respectively, the cryogenic system with it is described
Secondary absorption device is connected, and the secondary absorption device is equipped with gas discharge outlet.
2. the processing system for the exhaust gas that lithium battery recovery processing as described in claim 1 generates in the process, which is characterized in that institute
It is multitube parallel cyclone dust collectors to state cleaner, is made of erosion resistant corrosion material.
3. the processing system for the exhaust gas that lithium battery recovery processing as described in claim 1 generates in the process, which is characterized in that institute
It includes two molecular sieve filtration towers being arranged in parallel, the entrance and exit difference of the molecular sieve filtration tower to state dry-type filtering apparatus
It is connected with switching device, another keeps activating and regenerating spare when one of molecular sieve filtration tower uses, and the molecule is sieved through
Molecular sieve only adsorption moisture in filter tower.
4. the processing system for the exhaust gas that lithium battery recovery processing as claimed in claim 3 generates in the process, which is characterized in that institute
It is equipped with heat exchanger before stating cleaner, the exhaust gas of electrolyte drying unit discharge enters after the precooling of the heat exchanger
The cleaner and the molecular sieve filtration tower filter off the moisture in exhaust gas, and exhaust dew point is made to be less than -40 DEG C.
5. the processing system for the exhaust gas that lithium battery recovery processing as described in claim 1 generates in the process, which is characterized in that institute
It includes low dew-point dehumidifying group to state cryogenic system, for the organic solvent condensate in gas to be precipitated.
6. the processing system for the exhaust gas that lithium battery recovery processing as claimed in claim 5 generates in the process, which is characterized in that institute
It includes multi-stage heat exchanger, refrigerator system, cooling tower and knockout drum to state low dew-point dehumidifying group, the multi-stage heat exchanger with
The dry-type filtering apparatus is connected, and the multi-stage heat exchanger is connected with the refrigerator system, the refrigerator system point
It is not connected with the cooling tower and the knockout drum, by the temperature of multi-stage heat exchanger and the exhaust gas of refrigerator system
≤-35℃。
7. the processing system for the exhaust gas that lithium battery recovery processing as described in claim 1 generates in the process, which is characterized in that institute
It includes two absorbent charcoal adsorption tanks in parallel to state secondary absorption device, another keeps when one of absorbent charcoal adsorption tank uses
Activating and regenerating is spare, and the absorbent charcoal adsorption tank is equipped with hot nitrogen and equipment is desorbed, and for heating regenerated carbon, the two level is inhaled
Adsorption device is equipped with and returns gas channel, the access returned gas channel and connect the secondary absorption device and the dry-type filtering apparatus
Mouthful, the absorbent charcoal adsorption tank is sent desorption exhaust gas to the dry-type filtering apparatus by the gas channel of returning.
8. the processing system for the exhaust gas that the lithium battery recovery processing as described in claim 1-7 any bars generates in the process, special
Sign is, further includes nitrogen making machine, the nitrogen of generation is in lithium battery recovery and processing system, the dry-type filtering apparatus, the deep cooling
It circulates between device and the secondary absorption device.
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| CN108096977A (en) * | 2017-12-28 | 2018-06-01 | 杭州捷瑞空气处理设备有限公司 | The processing method and system for the exhaust gas that lithium battery recovery processing generates in the process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108096977A (en) * | 2017-12-28 | 2018-06-01 | 杭州捷瑞空气处理设备有限公司 | The processing method and system for the exhaust gas that lithium battery recovery processing generates in the process |
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Address after: No. 2088 Science and Technology Avenue, Qingshanhu Street, Lin'an City, Hangzhou City, Zhejiang Province, 311305 Patentee after: Hangzhou Jierui Intelligent Equipment Co.,Ltd. Address before: No. 2088 Science and Technology Avenue, Qingshanhu Street, Lin'an City, Hangzhou City, Zhejiang Province, 311305 Patentee before: HANGZHOU DRY AIR TREATMENT EQUIPMENT Co.,Ltd. |