CN104841244A - Normal pressure analyzing adsorption type acetone recovery system and method of shoemaking industry - Google Patents
Normal pressure analyzing adsorption type acetone recovery system and method of shoemaking industry Download PDFInfo
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- CN104841244A CN104841244A CN201510256447.XA CN201510256447A CN104841244A CN 104841244 A CN104841244 A CN 104841244A CN 201510256447 A CN201510256447 A CN 201510256447A CN 104841244 A CN104841244 A CN 104841244A
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- acetone
- normal pressure
- booster compressor
- adsorbent equipment
- gas
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- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 title claims abstract description 196
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000011084 recovery Methods 0.000 title claims abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 59
- 238000007906 compression Methods 0.000 claims abstract description 20
- 230000006835 compression Effects 0.000 claims abstract description 19
- 238000003795 desorption Methods 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 239000003463 adsorbent Substances 0.000 claims description 43
- 238000010521 absorption reaction Methods 0.000 claims description 28
- 238000001816 cooling Methods 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 11
- 238000005057 refrigeration Methods 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 241000628997 Flos Species 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims description 6
- 229920006395 saturated elastomer Polymers 0.000 claims description 6
- 230000000740 bleeding effect Effects 0.000 claims description 4
- 238000004880 explosion Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000003507 refrigerant Substances 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 claims description 3
- 239000002594 sorbent Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 239000002912 waste gas Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 9
- 229920002635 polyurethane Polymers 0.000 description 8
- 239000004814 polyurethane Substances 0.000 description 8
- 239000012855 volatile organic compound Substances 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention discloses a normal pressure analyzing adsorption type acetone recovery system and method of the shoemaking industry. The normal pressure analyzing adsorption type acetone recovery system comprises an acetone gas compression device, an adsorption device, a refrigerator and an acetone liquid storage tank. Acetone gases are compressed to be in the medium pressure state through the compression device and then enter the adsorption device to be adsorbed; after saturation adsorption, the acetone gases are reduced to the normal pressure to be desorbed; the analyzed concentrated acetone gases enter an evaporator of the refrigerator to be cooled and liquefied, and the liquefied acetone gases enter the acetone liquid storage tank to be recovered. The normal pressure analyzing adsorption type acetone recovery system and method solve the problem that the common vacuum pressure swing adsorption acetone recovery devices are low in desorption efficiency or the vacuum pump is high in failure rate which influences use, do not adopt the vacuum pressure swing adsorption system, use a screw type booster compressor to replace the complex vacuum pump, so desorption can be finished at normal pressure, the desorption efficiency is improved greatly, the system cost and failure rate are reduced greatly, and further the efficient, safe and reliable acetone recovery system is provided.
Description
Technical field
The present invention relates to absorption type recover acetone system and the recovery method of the parsing of a kind of normal pressure for adhesive for polyurethane shoe-making industry, belong to absorption type recover acetone technical field.
Background technology
The volatile organic matter (VOCs) of shoe-making industry is mainly derived from the use containing solvent product such as adhesive for shoes, inorganic agent, mainly concentrates on the stage casing of moulding process.Water-base cement can significantly reduce the content of VOCs but popularity rate is low, and the oily gum generally used is the main source of shoe-making industry VOCs, and such as polyurethane adhesive uses acetone in a large number, thus produces the organic exhaust gas discharges such as a large amount of acetone.Conventional acetone administration way mainly contains: catalytic oxidation, absorption method, membrane separation process, condensation method etc.Current absorption method adopts Vacuum Pressure Swing Adsorption mode usually, and there is the problems such as acetone desorption efficiency is not high, vacuum pump failure rate is high, the desorption efficiency of system and reliability need further raising.
Summary of the invention
Goal of the invention: the Vacuum Pressure Swing Adsorption recover acetone equipment desorption efficiency commonly used for existing polyurethane adhesive shoe-making industry is not high or vacuum pump failure rate is high and problem that impact uses, the present invention proposes a kind of absorption type recover acetone system and recovery method of novel normal pressure parsing, to improve desorption efficiency, and the reliability of system cloud gray model.
Technical scheme: for achieving the above object, the present invention adopts following technical scheme:
The absorption type recover acetone system that shoe-making industry is resolved with normal pressure, comprises acetone gas compression set, adsorbent equipment, refrigeration machine and acetone fluid reservoir; Described acetone gas compression set comprises screw booster compressor, switch board and air accumulator; Described adsorbent equipment comprises two adsorption tanks, and six pneumatic operated valves for switching adsorption tanks; Described refrigeration machine comprises screw type refrigerating compressor, air-cooled condenser, heating power expansion valve and plate-fin evaporator; The inlet valve of described screw booster compressor is connected with acetone waste gas gas outlet, the air bleeding valve of screw booster compressor is connected with the air inlet of air accumulator, the gas outlet of described air accumulator is connected with the air inlet of described adsorbent equipment, the parsing outlet of described adsorbent equipment is connected with the air inlet of described plate-fin evaporator, and the liquid outlet of described plate-fin evaporator is connected with the inlet of acetone fluid reservoir.
Further, described screw booster compressor is provided with temperature sensor, and described air accumulator is provided with pressure sensor, described switch board respectively with temperature sensor and pressure sensor, and screw booster compressor by-passing valve electrical connection.
Further, in described adsorbent equipment, the first adsorption tanks are connected with the air inlet of adsorbent equipment by the first pneumatic operated valve, to be exported and are connected, be connected by the 3rd pneumatic operated valve with the clean gas floss hole of adsorbent equipment by the second pneumatic operated valve with the parsing of adsorbent equipment; Second adsorption tanks are connected with the air inlet of adsorbent equipment by the 4th pneumatic operated valve, to be exported and are connected, be connected by the 6th pneumatic operated valve with the clean gas floss hole of adsorbent equipment by the 5th pneumatic operated valve with the parsing of adsorbent equipment.
Further, described screw booster compressor is the explosion-proof screw booster compressor adopting fire-proof motor, explosion-proof solenoid valve and anti-explosion terminal box.
Further, described screw booster compressor is the screw booster compressor adopting oil-free lubrication mode.
Further, the adsorbent in described adsorption tanks is the microporous activated carbon adsorbent of column.
Further, described screw booster compressor outside is provided with heat radiation or cooling device.Preferably, described cooling device is the cooling water cover being wrapped in described screw booster compressor outer wall.
The recovery method of the absorption type recover acetone system using above-mentioned shoe-making industry normal pressure to resolve, comprises the steps:
(1) acetone gas compression: the acetone gas that collection comes is passed in the screw booster compressor of acetone gas compression set and passes into air accumulator after pressure-raising to 0.6 ~ 0.8MPa;
(2) pressure absorption in: the acetone gas after compression in air accumulator is passed into adsorbent equipment, by two adsorption tanks alternating sorbent of adsorbent equipment, drops to normal pressure after an adsorption tanks absorption is saturated and carries out desorption;
(3) cryogenic condensation: the enrichment acetone gas parsed in adsorption tanks is passed in the plate-fin evaporator of refrigeration machine, liquefies under the cooling of low-temperature refrigerant;
(4) acetone is collected: by the aqueous acetone input acetone fluid reservoir in plate-fin evaporator.
Beneficial effect: the absorption type recover acetone system that polyurethane adhesive shoe-making industry normal pressure provided by the invention is resolved, by acetone gas compression set, acetone gas is compressed to middle pressure condition, enter adsorbent equipment again to be adsorbed at middle pressure condition, adsorb saturated after drop to normal pressure and carry out desorption, the evaporimeter that the enrichment acetone gas parsed enters refrigeration machine again carries out cooling liquid, and post liquefaction enters the object that acetone fluid reservoir reaches recovery.Compared with prior art, the method for the Vacuum Pressure Swing Adsorption of abandoning tradition of the present invention, reenters adsorption tanks after acetone gas is compressed to middle pressure condition and adsorbs, and desorption can be completed at ambient pressure, and desorption efficiency is significantly improved.And it is medium for shoe-making industry usual acetone tolerance, acetone atmospheric boiling point is 56 DEG C, the more high characteristic being more conducive to adsorbing of pressure, select to adopt screw booster compressor to compress acetone gas, cost and the fault rate of screw booster compressor also decline to a great extent than vavuum pump, thus reduce system cost and improve the reliability of system.In addition, screw booster compressor adopts the explosion-proof semi-closed screw type booster compressor that can adapt to acetone gas, adopt fire-proof motor, explosion-proof solenoid valve and anti-explosion terminal box, and carried out real-time monitoring and the adjustment of temperature and air pressure by temperature sensor and pressure sensor, ensured that security of system is reliably run.
Accompanying drawing explanation
Fig. 1 is the system architecture schematic diagram of the embodiment of the present invention.
In figure, 1: screw booster compressor, 2: switch board, 3: air accumulator, 6: plate-fin evaporator, 7: screw type refrigerating compressor, 8: air-cooled condenser, 9: heating power expansion valve, 10: temperature sensor, 11: pressure sensor, 12: acetone fluid reservoir, 20: the first adsorption tanks, 21: the second adsorption tanks, 22: the first pneumatic operated valves, 23: the second pneumatic operated valves, 24: the three pneumatic operated valves, 25: the four pneumatic operated valves, 26: the five pneumatic operated valves, 27: the six pneumatic operated valves.
Detailed description of the invention
Below in conjunction with specific embodiment, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.
As shown in Figure 1, the absorption type recover acetone system that disclosed in the embodiment of the present invention, a kind of normal pressure for polyurethane adhesive shoe-making industry is resolved, comprises acetone gas compression set, adsorbent equipment, refrigeration machine and acetone fluid reservoir 12; Wherein acetone gas compression set comprises screw booster compressor 1, switch board 2 and air accumulator 3, the inlet valve of screw booster compressor 1 is connected with the gas outlet of acetone gas gathering-device to be recycled by the pipeline of DN300 bore, and air bleeding valve is connected with the air inlet of air accumulator 3 by the pipeline of DN200 bore.Adsorbent equipment comprises two adsorption tanks (20, 21, i.e. A tank and B tank), by six pneumatic operated valves (22, 23, 24, 25, 26, 27) alternating sorbent or the analytical capabilities of opening or having closed two adsorption tanks is replaced, first adsorption tanks 20(A tank) air inlet of adsorbent equipment is connected by the first pneumatic operated valve 22, the clean gas floss hole of adsorbent equipment is connected by the 3rd pneumatic operated valve 24, adsorb saturated after by the second pneumatic operated valve 23 connect adsorbent equipment parsing outlet, second adsorption tanks 21(B tank) air inlet of adsorbent equipment is connected by the 4th pneumatic operated valve 25, the clean gas floss hole of adsorbent equipment is connected by the 6th pneumatic operated valve 27, adsorb saturated after by the 5th pneumatic operated valve 26 connect adsorbent equipment parsing outlet.The gas outlet of air accumulator 3 is connected with the air inlet of adsorbent equipment by the pipeline of DN200 bore.Refrigeration machine is by the air-cooled condenser 8 that can provide the screw type refrigerating compressor 7 of-15 DEG C of low-temperature receivers, cool high-temperature high-pressure refrigerant, be connected successively with the plate-fin evaporator 6 cooled acetone gas the heating power expansion valve 9 of cold-producing medium throttling, form an airtight system, cold-producing medium constantly circulates in systems in which, generation state changes, and carries out exchange heat with the external world.The parsing outlet of adsorbent equipment is connected with the air inlet of plate-fin evaporator 6 by the pipeline of DN100 bore, and the liquid outlet of plate-fin evaporator 6 is connected with the inlet of acetone fluid reservoir 12 by the pipeline of DN80 bore.For improving organic efficiency, reduce acetone gas discharge, the gas outlet of plate-fin evaporator 6 can be connected to the air inlet of screw booster compressor 1, carries out circulation and stress.Above-mentioned pipeline bore reclaims acetone tolerance medium feature setting according to polyurethane adhesive shoe-making industry, can according to actual treatment tolerance adjustment caliber size, for medium tolerance, pipeline bore is DN100 ~ DN300, and outlet pipe bore is generally less than air inlet pipeline bore.
Screw booster compressor 1 is the explosion-proof semi-closed screw type booster compressor that can adapt to acetone gas, and in order to adapt to the explosive properties of acetone gas, semi-closed screw type booster compressor adopts fire-proof motor, explosion-proof solenoid valve and anti-explosion terminal box; In order to prevent lubricating oil atomization after stain acetone gas, screw booster compressor 1 adopts oil-free lubrication mode; Can not cause in order to ensure compression process and fire, screw booster compressor 1 outside is provided with cooling device, this cooling device can be the cooling water cover being wrapped in screw booster compressor 1 outer wall, also can adopt other common air cooling, water cooling or oil coolers.In addition, by establishing temperature sensor 10 on screw booster compressor 1, detect the delivery temperature in compressor, air accumulator 3 is established pressure sensor 11, detect the gas pressure in air accumulator 3, switch board 2 is connected with the by-passing valve of temperature sensor 10, pressure sensor 11 and screw booster compressor 1 respectively, collecting temperature and pressure data, export control signal after calculating, the open degree controlling the by-passing valve of screw booster compressor 1 regulates pressure at expulsion and delivery temperature.Switch board 2 also can carry out when judging abnormal according to the data gathered reporting to the police, valve-off, other safety precautions such as to cut off the electricity supply.
The absorption type recover acetone system using the normal pressure of the present embodiment to resolve, is specially the process that the acetone gas of polyurethane adhesive shoe-making industry reclaims: (1) acetone gas compresses: in explosion-proof semi-closed screw type booster compressor, pass into air accumulator through the pipeline of DN300 bore and inlet valve by collecting the acetone gas come after pressure-raising to 0.6MPa pressure through the air bleeding valve of DN200 bore and pipeline; When screw booster compressor carries out gas compression, the data of the temperature sensor on the data of the pressure sensor on switch board Real-time Collection air accumulator and screw booster compressor, the data feedback collected is to the PLC processor in switch board, instruction is assigned by control loop to screw booster compressor after PLC computing, as controlled the open degree of compressor bypass valve to regulate pressure at expulsion and delivery temperature, with control temperature and pressure within the scope of setting, if temperature is between 80-90 DEG C, pressure is between 0.6 ~ 0.8MPa.(2) pressure absorption in: the acetone gas after compression in air accumulator is passed into adsorption tanks, adsorbed by the microporous activated carbon adsorbent of tank cylindrical (as German Carbotech company C40/4 active carbon), after adsorbent in A tank is saturated, be switched to B tank by pneumatic operated valve to adsorb, A tank then drops to normal pressure and carries out desorption.(3) cryogenic condensation: enter in the plate-fin evaporator of refrigeration machine through DN100 pipeline by the enrichment acetone gas parsed in adsorption tanks ,-15 DEG C of liquefaction under the cooling of low-temperature refrigerant, aqueous acetone concentrates on base of evaporator.For improving organic efficiency, the gas of discharging from plate-fin evaporator exhaust outlet being passed in screw booster compressor again and compresses, then carry out circulation and stress through absorption, condensation.(4) acetone is collected: the aqueous acetone in plate-fin evaporator is inputted through the pipeline of DN80 the object that acetone fluid reservoir reaches recovery.
The absorption type recover acetone system that normal pressure disclosed in the embodiment of the present invention is resolved, adsorbed again after acetone gas pressure-raising by acetone gas compression set, desorption, condensation, and for the feature of polyurethane adhesive shoe-making industry recover acetone, the design of careful refinement has been carried out to recovery system, do not adopt Vacuum Pressure Swing Adsorption formula system, but replace complicated vavuum pump with semi-closed screw type booster compressor, the pressure reduction of absorption and desorption is improved by first pressure-raising, thus desorption can be completed at ambient pressure, and desorption efficiency improves 30 ~ 40%, system cost and fault rate also decline to a great extent, thus provide one high efficiency, safe and reliable recover acetone system.
Claims (10)
1. the shoe-making industry absorption type recover acetone system of resolving with normal pressure, is characterized in that, comprise acetone gas compression set, adsorbent equipment, refrigeration machine and acetone fluid reservoir; Described acetone gas compression set comprises screw booster compressor, switch board and air accumulator; Described adsorbent equipment comprises two adsorption tanks, and six pneumatic operated valves for switching adsorption tanks; Described refrigeration machine comprises screw type refrigerating compressor, air-cooled condenser, heating power expansion valve and plate-fin evaporator; The inlet valve of described screw booster compressor is connected with acetone waste gas gas outlet, the air bleeding valve of screw booster compressor is connected with the air inlet of air accumulator, the gas outlet of described air accumulator is connected with the air inlet of described adsorbent equipment, the parsing outlet of described adsorbent equipment is connected with the air inlet of described plate-fin evaporator, and the liquid outlet of described plate-fin evaporator is connected with the inlet of acetone fluid reservoir.
2. the absorption type recover acetone system of normal pressure parsing according to claim 1, it is characterized in that, described screw booster compressor is provided with temperature sensor, described air accumulator is provided with pressure sensor, described switch board respectively with temperature sensor and pressure sensor, and screw booster compressor by-passing valve electrical connection.
3. the absorption type recover acetone system of normal pressure parsing according to claim 1, it is characterized in that, in described adsorbent equipment, first adsorption tanks are connected with the air inlet of adsorbent equipment by the first pneumatic operated valve, to be exported with the parsing of adsorbent equipment by the second pneumatic operated valve and be connected, be connected with the clean gas floss hole of adsorbent equipment by the 3rd pneumatic operated valve; Second adsorption tanks are connected with the air inlet of adsorbent equipment by the 4th pneumatic operated valve, to be exported and are connected, be connected by the 6th pneumatic operated valve with the clean gas floss hole of adsorbent equipment by the 5th pneumatic operated valve with the parsing of adsorbent equipment.
4. the absorption type recover acetone system of normal pressure parsing according to claim 1, is characterized in that, described screw booster compressor is the explosion-proof screw booster compressor adopting fire-proof motor, explosion-proof solenoid valve and anti-explosion terminal box.
5. the absorption type recover acetone system of normal pressure parsing according to claim 1, is characterized in that, described screw booster compressor is the screw booster compressor adopting oil-free lubrication mode.
6. the absorption type recover acetone system of normal pressure parsing according to claim 1, it is characterized in that, the adsorbent in described adsorption tanks is the microporous activated carbon adsorbent of column.
7. the absorption type recover acetone system of normal pressure parsing according to claim 1, it is characterized in that, described screw booster compressor outside is provided with cooling device.
8. the absorption type recover acetone system of normal pressure parsing according to claim 7, it is characterized in that, described cooling device is the cooling water cover being wrapped in described screw booster compressor outer wall.
9. the recovery method of the absorption type recover acetone system using shoe-making industry normal pressure as claimed in claim 1 to resolve, is characterized in that, comprise the steps:
(1) acetone gas compression: the acetone gas that collection comes is passed in the screw booster compressor of acetone gas compression set and passes into air accumulator after pressure-raising to 0.6 ~ 0.8MPa;
(2) pressure absorption in: the acetone gas after compression in air accumulator is passed into adsorbent equipment, by two adsorption tanks alternating sorbent of adsorbent equipment, drops to normal pressure after an adsorption tanks absorption is saturated and carries out desorption;
(3) cryogenic condensation: the enrichment acetone gas parsed in adsorption tanks is passed in the plate-fin evaporator of refrigeration machine, liquefies under the cooling of low-temperature refrigerant;
(4) acetone is collected: by the aqueous acetone input acetone fluid reservoir in plate-fin evaporator.
10. recovery method according to claim 9, is characterized in that, described step also comprises in (3): passed into by the gas of discharging from plate-fin evaporator exhaust outlet in the screw booster compressor of acetone gas compression set again and carry out circulation and stress.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510256447.XA CN104841244B (en) | 2015-05-19 | 2015-05-19 | Adsorption-type acetone recovery system that shoe-making industry resolves with normal pressure and recovery method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510256447.XA CN104841244B (en) | 2015-05-19 | 2015-05-19 | Adsorption-type acetone recovery system that shoe-making industry resolves with normal pressure and recovery method |
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| CN104841244B CN104841244B (en) | 2016-09-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105251311A (en) * | 2015-10-10 | 2016-01-20 | 江苏智道工程技术有限公司 | Method for recycling effective ingredients of multi-component high-concentration small-flow intermittent organic waste gas |
| CN107854959A (en) * | 2017-12-07 | 2018-03-30 | 韩志军 | Mixed type complex working condition VOCs purifies technique and device |
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| CN1282622A (en) * | 1999-07-29 | 2001-02-07 | 林德股份公司 | Method and device for purifying air |
| CN102266703A (en) * | 2011-06-30 | 2011-12-07 | 陆书明 | Environment-friendly device for recycling and treating solvents in tail gas |
| US20120011887A1 (en) * | 2009-03-11 | 2012-01-19 | Morimitsu Nakamura | Method of purifying air |
| CN104524930A (en) * | 2014-12-03 | 2015-04-22 | 武汉旭日华科技发展有限公司 | Acetone exhaust-gas recovery and refining device and method thereof |
| CN204656284U (en) * | 2015-05-19 | 2015-09-23 | 南京都乐制冷设备有限公司 | The absorption type recover acetone system that shoe-making industry is resolved with normal pressure |
-
2015
- 2015-05-19 CN CN201510256447.XA patent/CN104841244B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1282622A (en) * | 1999-07-29 | 2001-02-07 | 林德股份公司 | Method and device for purifying air |
| US20120011887A1 (en) * | 2009-03-11 | 2012-01-19 | Morimitsu Nakamura | Method of purifying air |
| CN102266703A (en) * | 2011-06-30 | 2011-12-07 | 陆书明 | Environment-friendly device for recycling and treating solvents in tail gas |
| CN104524930A (en) * | 2014-12-03 | 2015-04-22 | 武汉旭日华科技发展有限公司 | Acetone exhaust-gas recovery and refining device and method thereof |
| CN204656284U (en) * | 2015-05-19 | 2015-09-23 | 南京都乐制冷设备有限公司 | The absorption type recover acetone system that shoe-making industry is resolved with normal pressure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105251311A (en) * | 2015-10-10 | 2016-01-20 | 江苏智道工程技术有限公司 | Method for recycling effective ingredients of multi-component high-concentration small-flow intermittent organic waste gas |
| CN107854959A (en) * | 2017-12-07 | 2018-03-30 | 韩志军 | Mixed type complex working condition VOCs purifies technique and device |
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| CN104841244B (en) | 2016-09-21 |
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Denomination of invention: Adsorption acetone recovery system and recovery method for normal pressure analysis in footwear industry Effective date of registration: 20221025 Granted publication date: 20160921 Pledgee: Jiangsu SINOSURE technology microfinance Co.,Ltd. Pledgor: NANJING ALL DELIGHT REFRIGERATION EQUIPMENT Co.,Ltd. Registration number: Y2022980019380 |
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