CN205856359U - A kind of NMP in working procedure of coating lithium ion cell recycle device - Google Patents
A kind of NMP in working procedure of coating lithium ion cell recycle device Download PDFInfo
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- CN205856359U CN205856359U CN201620619063.XU CN201620619063U CN205856359U CN 205856359 U CN205856359 U CN 205856359U CN 201620619063 U CN201620619063 U CN 201620619063U CN 205856359 U CN205856359 U CN 205856359U
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
A kind of NMP in working procedure of coating lithium ion cell recycle device, including coating machine, heat exchanger, runner, evaporation equipment for purifying, waste liquid tank, automatic liquid-feeding equipment, nmp solution storage tank, it is characterized in that: described heat exchanger includes heat exchanger high temperature inlet, heat exchanger low-temperature outlet, heat exchanger dry air entrance, heat exchanger dry air exports, about described coating machine, two sides are provided with coater head, coating tail, described coating machine is arranged over exhaust duct, exhaust duct connects exhaust blower, exhaust blower connects heat exchanger high temperature inlet by exhaust duct, air supply duct it is provided with below coating machine.This utility model is for adsorbing the NMP waste gas discharged in coating lithium ion cell production process, and utilizing condenser that the NMP in waste gas becomes liquids recovery cycling and reutilization, NMP concentration is high, and purification rate is high, plant automation degree is high, and liquids recovery cyclic utilization rate is high.
Description
Technical field
This utility model relates to waste gas recovery technical field, particularly relates to a kind of NMP in working procedure of coating lithium ion cell and reclaims
Utilize device.
Background technology
N-Methyl pyrrolidone (NMP) is colourless transparent liquid, boiling point 202 DEG C, and flash-point 95 DEG C is water-miscible, is dissolved in
Ether, acetone and various organic solvent, slightly ammonia taste, stable chemical performance, carbon steel, aluminum are not corroded, to copper slightly corrosivity.
Having viscosity low, chemical stability and Heat stability is good, polarity is high, and volatility is low, can be the most mixed with water and many organic solvents
The advantage such as molten.
At lithium battery production field, anode sizing agent typically uses NMP liquid flux, and the size of its utilization rate is each battery
Producer's cardinal task of interest, when a collection of anode sizing agent has designed and produced coating, traditional method is to adopt
Nmp solvent (temperature 120 DEG C, time 4min) is removed by the method for high-temperature heating.NMP loses in gaseous form, whole mistake
Journey consumes substantial amounts of nmp solvent, is also wasted with the nmp solvent of gas evaporation.Meanwhile, pole is unfavorable for energy-saving ring
Protect.
At present, during nmp solvent essence is steamed and purified, it is usually the liquid reclaimed with intensification Guan Tongxu and mixes,
After intensification, NMP gas volatilizees together with water vapour, and such NMP loss is big, and concentration is low, and quantity of steam loss is big.
Summary of the invention
This utility model provides a kind of NMP in working procedure of coating lithium ion cell recycle device, is used for adsorbing lithium-ion electric
The NMP waste gas discharged in pond coating production process, and utilize heating chamber that NMP waste liquid is heated, after heating, NMP waste liquid enters
Enter vaporization chamber to be evaporated, condense subsequently into condenser, reach the purpose concentrated, improve NMP organic efficiency so that
NMP concentration is high, and purification rate is high；When the warehouse structure sealed ensure that liquid feeding, free from extraneous odour sheds, and stable automatic liquid-feeding ensures again
Not spilling of solution is dripped, and makes the working environment be improved, and product quality is improved；Plant automation degree is high, work efficiency
Height, liquids recovery cyclic utilization rate is high.
The technical solution of the utility model is: a kind of NMP in working procedure of coating lithium ion cell recycle device, including coating
Machine, heat exchanger, runner, evaporation equipment for purifying, waste liquid tank, automatic liquid-feeding equipment, nmp solution storage tank, it is characterised in that: described
Heat exchanger includes the dry sky of heat exchanger high temperature inlet, heat exchanger low-temperature outlet, heat exchanger dry air entrance, heat exchanger
Gas exports, and about described coating machine, two sides are provided with coater head, coating tail, and described coating machine is arranged over exhaust duct, row
Wind pipeline connects exhaust blower, and exhaust blower connects heat exchanger high temperature inlet by exhaust duct, is provided with ajutage below coating machine
Road, air supply duct connects breeze fan, and breeze fan connects heat exchanger dry air by air supply duct and exports, and described runner sets
Being equipped with adsorption zone, desorption district and waste heat recovery district, described adsorption zone the right and left is respectively arranged with organic solvent and enters adsorption zone pipe
Road, pure air pipeline, enter adsorption zone pipeline by organic solvent and be linked in sequence filter, secondary surface cooler, one-level table
Aerator, heat exchanger low-temperature outlet, entered by be linked in sequence circulating fan, heat exchanger dry air of pure air pipeline
Mouthful, described desorption district the right and left is respectively arranged with concentration blower fan and electric heater, concentrates blower fan and goes out desorption by regeneration air
Pipeline one end, district connects desorption district, and the other end connects heat exchanger low-temperature outlet, and described waste heat recovery district the right and left sets respectively
Being equipped with regeneration air and enter waste heat recovery district pipeline and regeneration air goes out waste heat recovery district pipeline, regeneration air goes out waste heat recovery district pipe
Road connects electric heater, and electric heater enters to be desorbed district's pipeline by regeneration air and connects desorption district, between filter and adsorption zone
Connecting has regeneration air to enter waste heat recovery district pipeline, and filter, secondary surface cooler, first-surface cooler pass through fluid-through tube
Road is connected with waste liquid tank, and described evaporation equipment for purifying includes circulating pump, heating chamber, upper circular tube, lower circulation pipe, vaporization chamber, cold
Condenser, circulating-pump outlet is connected with bottom heating chamber, and heating chamber top is connected with upper circular tube, and upper circular tube is provided with upper circular tube
Outlet, upper circular tube outlet is stretched in vaporization chamber, connects lower circulation pipe, be provided with vaporization chamber and enter below lower circulation pipe bottom vaporization chamber
Mouthful, lower circulation pipe connects circulating pump, is provided with vaporization chamber outlet below vaporization chamber, and vaporization chamber outlet connects condenser by pipeline,
Waste liquid tank and a solution feed pump connect, and a solution feed pump is connected with vaporization chamber entrance, and condenser passes through pipeline and No. two solution feed pumps
Connecting, No. two solution feed pumps are connected with nmp solution storage tank, and nmp solution storage tank and No. three solution feed pumps connect, described automatic liquid-feeding equipment
Including stir storehouse and liquid feeding storehouse, stir storehouse is separated by a point storehouse dividing plate by a hermetic container with liquid feeding storehouse, described stirring
It is provided with input duct, temperature transducer, Pneumatic Pressure intake valve, pneumatic air bleeding valve on storehouse, input duct is provided with pneumatic
Liquid feed valve, effusion meter, be provided with agitating device and U-shaped heating rod in described stir storehouse, described agitating device includes being arranged on institute
State the stirring blade installed in the stirring slurry connecting shaft in stir storehouse and stirring slurry connecting shaft, stirring slurry connecting shaft and stirring electricity
Machine is connected, and described stir storehouse is connected with liquid feeding storehouse by liquid-transport pipe-line, and liquid-transport pipe-line is provided with check valve, described liquid feeding
Being provided with liquid level sensor on storehouse, be provided with liquid feeding outlet bottom described liquid feeding storehouse, liquid feeding outlet connects No. four by liquid-feeding tube
Solution feed pump, No. four solution feed pumps are connected with coater head, Pneumatic liquid feeding valve, effusion meter, temperature transducer, check valve, stirring motor
And U-shaped heating rod electrically connects with PLC control cabinet respectively, No. three solution feed pumps are connected with input duct.
The beneficial effects of the utility model are: this utility model provides a kind of NMP in working procedure of coating lithium ion cell to reclaim profit
With device, for adsorbing the NMP waste gas discharged in coating lithium ion cell production process, and utilize heating chamber to NMP waste liquid
Heating, after heating, NMP waste liquid entrance vaporization chamber is evaporated, and condenses subsequently into condenser, reaches the mesh concentrated
, improving NMP organic efficiency so that NMP concentration is high, purification rate is high；When the warehouse structure sealed ensure that liquid feeding, free from extraneous odour dissipates
Going out, stable automatic liquid-feeding in turn ensure that not spilling of solution is dripped, and makes working environment be improved, and product quality is improved；Dress
Putting automaticity high, work efficiency is high, and liquids recovery cyclic utilization rate is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model (omitting the connection of part 615PLC control chamber and equipment component in figure).
Fig. 2 is the structure for amplifying schematic diagram that in Fig. 1, part 5 evaporates equipment for purifying.
Fig. 3 is the structure for amplifying schematic diagram of part 6 automatic liquid-feeding equipment in Fig. 1.
In Fig. 1, Fig. 2, Fig. 3: 1. coating machine, 2. breeze fan, 3. exhaust blower, 4. heat exchanger, 5. evaporation equipment for purifying,
6. automatic liquid-feeding equipment, 7. runner, 8. waste heat recovery district, 9. adsorption zone, 10. first-surface cooler, 11. secondary surface coolings
Device, 12. filters, 13. regeneration airs enter waste heat recovery district pipeline, and 14. organic solvents enter adsorption zone pipeline, 15. pure airs
Pipeline, 16. electric heaters, 17. circulating fans, 18. waste liquid tanks, 19. regeneration airs go out waste heat recovery district pipeline, 20. exhaust ducts
Road, 21. air supply ducts, 22. regeneration airs enter to be desorbed district's pipeline, and 23. regeneration airs go out to be desorbed district's pipeline, 24. coater head,
25. coating tails, 26. concentrate blower fan, No. 27. solution feed pumps, 28. No. two solution feed pumps, 29. No. three solution feed pumps, 30. No. four feed flows
Pump, 31.NMP solution reservoir, 32. desorption districts, 41. heat exchanger high temperature inlet, 42. heat exchanger low-temperature outlet, 43. heat exchanges
Device dry air entrance, 44. heat exchanger dry air outlets, 51. vaporization chamber entrances, 52. times circulation pipes, 53. condensers, 54. steam
Sending out room outlet, 55. upper circular tube outlets, 56. vaporization chambers, 57. upper circular tubes, 58. steam storage tanks, 59. steam inlets, 510. add
Hot cell, 511. circulating pumps, 601. effusion meters, 602. Pneumatic liquid feeding valves, 603. stirring motors, 604. temperature transducers, 605.U shape
Heating rod, 606. liquid level sensors, 607. points of storehouse dividing plates, 608. liquid feeding storehouses, 609. liquid-transport pipe-lines, 610. stir storehouses, 611. stir
Mixing slurry connecting shaft, 612. stirring blades, 613. input duct, 614. check valves, 615.PLC control chamber, 616. liquid feedings export,
617. liquid-feeding tubes, 618. Pneumatic Pressure intake valves, 619. pneumatic air bleeding valves.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.
As shown in Figure 1, Figure 2, Figure 3 shows, this utility model is a kind of NMP in working procedure of coating lithium ion cell recycle device,
Including coating machine 1, heat exchanger 4, runner 7, evaporation equipment for purifying 5, waste liquid tank 18, automatic liquid-feeding equipment 6, nmp solution storage tank
31, it is characterised in that: described heat exchanger 4 includes heat exchanger high temperature inlet 41, heat exchanger low-temperature outlet 42, heat exchanger
Dry air entrance 43, heat exchanger dry air outlet 44, described coating machine about 1 two side is provided with coater head 24, coating tail
25, described coating machine 1 is arranged over exhaust duct 20, and exhaust duct 20 connects exhaust blower 3, and exhaust blower 3 is by exhaust duct 20
Connecting heat exchanger high temperature inlet 41, be provided with air supply duct 21 below coating machine 1, air supply duct 21 connects breeze fan 2, air-supply
Blower fan 2 connects heat exchanger dry air outlet 44 by air supply duct 21, and described runner 7 is provided with adsorption zone 9, desorption district 32 and
Waste heat recovery district 8, described adsorption zone 9 the right and left is respectively arranged with organic solvent and enters adsorption zone pipeline 14, pure air pipeline
15, enter adsorption zone pipeline 14 by organic solvent and be linked in sequence filter 12, secondary surface cooler 11, first-surface cooler
10, heat exchanger low-temperature outlet 42, is linked in sequence circulating fan 17, heat exchanger dry air entrance by pure air pipeline 15
43, described desorption district 32 the right and left is respectively arranged with concentration blower fan 26 and electric heater 16, concentrates blower fan 26 by regeneration sky
Gas goes out to be desorbed district's pipeline 23 one end and connects desorption district 32, and the other end connects heat exchanger low-temperature outlet 42, described waste heat recovery district 8
The right and left is respectively arranged with regeneration air and enters waste heat recovery district pipeline 13 and regeneration air goes out waste heat recovery district pipeline 19, regeneration
Air goes out waste heat recovery district pipeline 19 and connects electric heater 16, and electric heater 16 enters to be desorbed district's pipeline 22 by regeneration air and connects
Desorption district 32, is connected between filter 12 with adsorption zone 9 and has regeneration air to enter waste heat recovery district pipeline 13, filter 12, two grades
Surface-cooler 11, first-surface cooler 10 are connected with waste liquid tank 18 by fluid-through tube road, and described evaporation equipment for purifying 5 includes
Circulating pump 511, heating chamber 510, upper circular tube 57, lower circulation pipe 52, vaporization chamber 56, condenser 53, circulating pump 511 exports and adds
Connecting bottom hot cell 510, heating chamber 510 top is connected with upper circular tube 57, and upper circular tube 57 is provided with upper circular tube outlet 55, on
Circulation pipe outlet 55 is stretched in vaporization chamber 56, connects lower circulation pipe 52, be provided with evaporation below lower circulation pipe 52 bottom vaporization chamber 56
Chamber inlet 51, lower circulation pipe 52 connects circulating pump 511, is provided with vaporization chamber outlet 54 below vaporization chamber 56, and vaporization chamber outlet 54 is led to
Piping connects condenser 53, and waste liquid tank 18 is connected with a solution feed pump 27, and a solution feed pump 27 is connected with vaporization chamber entrance 51,
Condenser 53 is connected by pipeline and No. two solution feed pumps 28, and No. two solution feed pumps 28 are connected with nmp solution storage tank 31, and nmp solution stores up
Tank 31 is connected with No. three solution feed pumps 29, and described automatic liquid-feeding equipment 6 includes stir storehouse 610 and liquid feeding storehouse 608, stir storehouse 610 with
Liquid feeding storehouse 608 is separated by a point storehouse dividing plate 607 by a hermetic container, and described stir storehouse 610 is provided with input duct
613, temperature transducer 604, Pneumatic Pressure intake valve 618, pneumatic air bleeding valve 619, input duct 613 is provided with Pneumatic liquid feeding
Valve 602, effusion meter 601, be provided with agitating device and U-shaped heating rod 605 in described stir storehouse 610, described agitating device includes
The stirring blade 612 installed in the stirring slurry connecting shaft 611 being arranged in described stir storehouse 610 and stirring slurry connecting shaft 611,
Stirring slurry connecting shaft 611 is connected with stirring motor 603, and described stir storehouse 610 is by liquid-transport pipe-line 609 and liquid feeding storehouse 608 phase
Connection, liquid-transport pipe-line 609 is provided with check valve 614, described liquid feeding storehouse 608 is provided with liquid level sensor 606, described liquid feeding
Being provided with liquid feeding outlet 616 bottom storehouse 608, liquid feeding outlet 616 connects No. four solution feed pumps 30, No. four feed flows by liquid-feeding tube 617
Pump 30 is connected with coater head 24, Pneumatic liquid feeding valve 602, effusion meter 601, temperature transducer 604, check valve 614, stirring motor
603 and U-shaped heating rod 605 electrically connect with PLC control cabinet 615 respectively, No. three solution feed pumps 29 are connected with input duct 613.
The exit of filter 12 forms two-way wind path, and absorption wind path is entered adsorption zone pipeline 14 by organic solvent will mixing sky
Air-blowing, to adsorption zone 9, is delivered to heat exchange by pure air pipeline 15 by circulating fan 17 again by the dry air of adsorption zone 9
Device dry air entrance 43；
Desorption wind path is entered waste heat recovery district pipeline 13 by regeneration air and delivers to waste heat recovery district 8, then is gone out by regeneration air
Waste heat recovery district pipeline 19 is delivered to electric heater 16 and is heated, and then blows to desorption district 32, goes out desorption by regeneration air
District's pipeline 23 blows to heat exchanger low-temperature outlet 42；
In the rotation direction of runner 7, it is from upstream to downstream and sets gradually adsorption zone 9, desorption district 32 and waste heat recovery district 8,
By above-mentioned setting, in desorption district 32 after runner 7 part that electric heater 16 heats forwards waste heat recovery district 8 to, it is desorbed wind
The wind that road blows first passes through waste heat recovery district 8 again through electric heater 16, so that the amount of residual heat of waste heat recovery district 8 part
Can be reused, improve energy utilization efficiency；
Automatic liquid-feeding operation principle is: the U-shaped heating rod 605 in stir storehouse is molten in ensure that storehouse with temperature transducer 604
Liquid is in the range of a controllable temperature, and the agitating device in storehouse can be that it provides long agitation；By temperature and time
Between condition control liquid charging stock joining day, effusion meter 601 control add amount；Finally again by temperature and time with
The judgement of preceding processes determines that the preparation of solution completes；Solution is pressed into liquid feeding by being passed through compressed air in stir storehouse 610 again
In storehouse 608, and when the signal of the liquid level sensor 606 in liquid feeding storehouse 608 determines from stir storehouse 610 to the work in liquid feeding storehouse 608
Machine and working time；
When in liquid feeding storehouse 608 liquid level sensor 606 drop to setting liquid level will send sound and light signal, just can be again by stirring
It is passed through compressed air in mixing storehouse 610 to be pressed into by solution in liquid feeding storehouse 608, so completes automatic liquid-feeding operation successively, and in this mistake
Journey can be accomplished unmanned operation state completely.And the warehouse structure sealed when in turn ensure that liquid feeding free from extraneous odour shed, stable
Automatic liquid-feeding in turn ensure that not spilling of solution is dripped, and makes working environment be improved, and product quality is improved.
Work process of the present utility model:
(the air quantity 10000m when the exhaust blower 3 of coating machine 1 starts and sends the waste gas hot blast containing NMP3/ h, temperature 100
DEG C, concentration 1000mg/m containing NMP3), start retracting device circulating fan 17, cold wind (the air quantity 18000m of circulating fan 173/
H, temperature 25 DEG C, concentration 50mg/m containing NMP3), enter heat exchanger 4；Waste gas hot blast containing NMP initially enters heat exchanger 4
Carry out heat exchange with the cold wind of circulating fan 17, make the waste gas heat air temperature containing NMP reduce (air quantity 10000m3/ h, temperature 76
DEG C, concentration 1000mg/m containing NMP3), with waste gas (the air quantity 2600m containing NMP from concentration blower fan 263/ h, temperature 55 DEG C,
Concentration 3000mg/m containing NMP3) mixing, contain waste gas (the air quantity 12600m of NMP after mixing3/ h, temperature 68 DEG C, the concentration containing NMP
1350mg/m3), carry out heat exchange, in one-level subsequently into first-surface cooler 10, secondary surface cooler 11 with recirculated water
Surface-cooler 10, secondary surface cooler 11 the two part have substantial amounts of NMP curding out, after condensing into liquid, enter
Waste liquid tank 18, makes the waste gas heat air temperature containing NMP reduce (air quantity 12600m3/ h, temperature 20 DEG C, concentration 500mg/ containing NMP
m3)；Filter through filter 12 again, go the removal of impurity；
A most remaining tail gas part (the air quantity 10000m containing NMP3/ h, temperature 20 DEG C, concentration 500mg/ containing NMP
m3) enter adsorption zone 9, need gas to be processed to become the gas of relative clean, place after adsorption zone 9 is flow through containing organic solvent
In gas after reason, the content of organic solvent reduces (air quantity 18000m3/ h, temperature 25 DEG C, concentration 50mg/m containing NMP3) pass through
Circulating fan 17 enters heat exchanger dry air entrance 43；
Another part (air quantity 2600m3/ h, temperature 20 DEG C, concentration 500mg/m containing NMP3) enter waste heat recovery district 8, inhale
Receive waste heat, then heat (air quantity 2600m through electric heater 163/ h, temperature 140 DEG C) enter desorption district 32, from the desorption district of runner 7
32 flow through, and owing to the desorption district 32 of runner 7 is reproduced air heating, the organic solvent evaporation in desorption district 32 is out with regeneration sky
(air quantity 2600m walked by the band of gas3/ h, temperature 55 DEG C, concentration 3000mg/m containing NMP3) with the waste gas containing NMP carrying out automatic heat-exchanger 4
(air quantity 10000m3/ h, temperature 76 DEG C, concentration 1000mg/m containing NMP3) it is mixed into first-surface cooler 10, secondary surface
Cooler 11, has substantial amounts of NMP curding out, circulates and so forth；
The NMP waste liquid reclaimed adds from lower circulation pipe 52 bottom vaporization chamber entrance 51, circulating pump 511 be sent to heating chamber
510 heating, from the 0.7MPa of steam storage tank 58, the saturated vapor of 170 DEG C, enter heating chamber 510, add NMP waste liquid
Heat；NMP waste liquid (temperature 98 DEG C, pressure 0.07MPa) after heating, enters vaporization chamber 56 and is evaporated, subsequently into condenser 53
Condensing, reach the purpose concentrated, improve NMP organic efficiency so that NMP concentration is high, purification rate is high；
The work process of automatic liquid-feeding: starting the automatic running program in PLC control cabinet 615, now program provides signal
Being opened by pneumatic air bleeding valve 619, in stir storehouse 610 and atmospheric equilibrium, pneumatic air bleeding valve 619 will be pneumatic to signal after putting in place
Liquid feed valve 602 is opened, and now effusion meter 601 metering flows through the flow of its liquid and compares with setting value in program, when reaching to set
After definite value, providing signal at stop Pneumatic liquid feeding valve 602, now program provides signal enabling stirring motor 603, U-shaped heating rod
605；
After pneumatic air bleeding valve 619 is closed, the value of feedback of Programmable detection liquid level sensor 606, when it determines liquid feeding storehouse 608
Interior solution is after enough low values, and program will provide instruction unpack Pneumatic Pressure intake valve 618, and now stir storehouse 610 is pressurized, its
Pressing force forces solution in liquid-transport pipe-line 609 flows into liquid feeding storehouse 608, and now liquid level sensor 606 continues feedback detection
Value, and program can constantly calculate the measured value opening Pneumatic Pressure intake valve 618 moment liquid level sensor 606 and present measurement
Value, when program calculate its value equal to the total amount of solution in stir storehouse 610 after, then program provides instruction and closes Pneumatic Pressure and enter
Air valve 618；Signal empty in now program will send stir storehouse 610 on PLC control cabinet 615 pictute plate is to facilitate again
Carrying out, now the liquid level in liquid feeding storehouse 608 is necessarily higher than the liquid level in stir storehouse 610, but owing to there being check valve 614
Existing, solution will not be back in stir storehouse 610.
As can be seen here, this utility model provides a kind of NMP in working procedure of coating lithium ion cell recycle device, is used for adsorbing
The NMP waste gas discharged in coating lithium ion cell production process, and utilize heating chamber NMP waste liquid to be heated, after heating
NMP waste liquid enters vaporization chamber and is evaporated, and condenses subsequently into condenser, reaches the purpose concentrated, and improves NMP and reclaims effect
Rate so that NMP concentration is high, purification rate is high；When the warehouse structure sealed ensure that liquid feeding, free from extraneous odour sheds, stable automatic liquid-feeding
In turn ensure that not spilling of solution is dripped, make working environment be improved, product quality is improved；Plant automation degree is high, work
Making efficiency high, liquids recovery cyclic utilization rate is high.
Claims (1)
1. a NMP in working procedure of coating lithium ion cell recycle device, purifies including coating machine, heat exchanger, runner, evaporation
Equipment, waste liquid tank, automatic liquid-feeding equipment, nmp solution storage tank, it is characterised in that: described heat exchanger includes heat exchanger high temperature
Entrance, heat exchanger low-temperature outlet, heat exchanger dry air entrance, heat exchanger dry air export, about described coating machine two
Side is provided with coater head, coating tail, and described coating machine is arranged over exhaust duct, and exhaust duct connects exhaust blower, exhaust blower
Connecting heat exchanger high temperature inlet by exhaust duct, be provided with air supply duct below coating machine, air supply duct connects breeze fan,
Breeze fan connects heat exchanger dry air by air supply duct and exports, and described runner is provided with adsorption zone, desorption district and waste heat
Recovery area, described adsorption zone the right and left is respectively arranged with organic solvent and enters adsorption zone pipeline, pure air pipeline, by organic
Solvent enters be linked in sequence filter, secondary surface cooler, first-surface cooler, heat exchanger low temperature of adsorption zone pipeline and goes out
Mouthful, it being linked in sequence circulating fan, heat exchanger dry air entrance by pure air pipeline, described desorption district the right and left is respectively
It is provided with concentration blower fan and electric heater, concentrates blower fan and go out to be desorbed connection desorption district, pipeline one end, district by regeneration air, another
End connects heat exchanger low-temperature outlet, and described waste heat recovery district the right and left is respectively arranged with regeneration air and enters waste heat recovery district pipe
Road and regeneration air go out waste heat recovery district pipeline, and regeneration air goes out waste heat recovery district pipeline and connects electric heater, and electric heater leads to
Cross regeneration air and enter to be desorbed pipeline connection desorption district of district, be connected between filter with adsorption zone and have regeneration air to enter waste heat recovery district
Pipeline, filter, secondary surface cooler, first-surface cooler be connected with waste liquid tank by fluid-through tube road, and described evaporation carries
Pure equipment includes at the bottom of circulating pump, heating chamber, upper circular tube, lower circulation pipe, vaporization chamber, condenser, circulating-pump outlet and heating chamber
Portion connects, and heating chamber top is connected with upper circular tube, and upper circular tube is provided with upper circular tube outlet, and evaporation is stretched in upper circular tube outlet
Indoor, connect lower circulation pipe, are provided with vaporization chamber entrance below lower circulation pipe bottom vaporization chamber, lower circulation pipe connects circulating pump, steams
Sending out and be provided with vaporization chamber outlet below room, vaporization chamber outlet connects condenser, waste liquid tank and a solution feed pump by pipeline and connects, and one
Number solution feed pump is connected with vaporization chamber entrance, and condenser is connected with No. two solution feed pumps by pipeline, No. two solution feed pumps and nmp solution storage
Tank connects, and nmp solution storage tank and No. three solution feed pumps connect, and described automatic liquid-feeding equipment includes stir storehouse and liquid feeding storehouse, stir storehouse
It is separated by a point storehouse dividing plate by a hermetic container with liquid feeding storehouse, described stir storehouse is provided with input duct, thermometric biography
Sensor, Pneumatic Pressure intake valve, pneumatic air bleeding valve, input duct is provided with Pneumatic liquid feeding valve, effusion meter, in described stir storehouse
Be provided with agitating device and U-shaped heating rod, the stirring slurry connecting shaft that described agitating device includes being arranged in described stir storehouse with
And the stirring blade installed in stirring slurry connecting shaft, stirring slurry connecting shaft is connected with stirring motor, and described stir storehouse is by defeated
Liquid pipeline is connected with liquid feeding storehouse, liquid-transport pipe-line is provided with check valve, described liquid feeding storehouse is provided with liquid level sensor, described
Being provided with liquid feeding outlet bottom liquid feeding storehouse, liquid feeding outlet connects No. four solution feed pumps, No. four solution feed pumps and coating machine by liquid-feeding tube
Head connect, Pneumatic liquid feeding valve, effusion meter, temperature transducer, check valve, stirring motor and U-shaped heating rod respectively with PLC control cabinet
Electrical connection, No. three solution feed pumps are connected with input duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620619063.XU CN205856359U (en) | 2016-06-12 | 2016-06-12 | A kind of NMP in working procedure of coating lithium ion cell recycle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620619063.XU CN205856359U (en) | 2016-06-12 | 2016-06-12 | A kind of NMP in working procedure of coating lithium ion cell recycle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205856359U true CN205856359U (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620619063.XU Active CN205856359U (en) | 2016-06-12 | 2016-06-12 | A kind of NMP in working procedure of coating lithium ion cell recycle device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113788776A (en) * | 2021-09-03 | 2021-12-14 | 深圳市德尼环保技术有限公司 | Lithium ion battery coating procedure NMP purification method and system |
-
2016
- 2016-06-12 CN CN201620619063.XU patent/CN205856359U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113788776A (en) * | 2021-09-03 | 2021-12-14 | 深圳市德尼环保技术有限公司 | Lithium ion battery coating procedure NMP purification method and system |
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Effective date of registration: 20171025 Address after: 214151 Jiangsu province Wuxi city Huishan District Qian Qiao Street Su Village (industrial concentration area) Patentee after: Wuxi Aobo Purification & Desiccant Air Conditioner Co., Ltd. Address before: 214021 South The Strip, Wuxi, Jiangsu Province, No. 705 Patentee before: Zhang Jiangang |
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Address after: 214151 Su Miao village, Qian Qiao street, Huishan District, Wuxi, Jiangsu (industrial concentration area) Patentee after: Opo Environmental New Energy (Wuxi) Co., Ltd. Address before: 214151 Su Miao village, Qian Qiao street, Huishan District, Wuxi, Jiangsu (industrial concentration area) Patentee before: Wuxi Aobo Purification & Desiccant Air Conditioner Co., Ltd. |
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