CN101269292A - Non-secondary pollution cyclic utilization multi-organic waste gas treatment method - Google Patents
Non-secondary pollution cyclic utilization multi-organic waste gas treatment method Download PDFInfo
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- CN101269292A CN101269292A CNA2007100872081A CN200710087208A CN101269292A CN 101269292 A CN101269292 A CN 101269292A CN A2007100872081 A CNA2007100872081 A CN A2007100872081A CN 200710087208 A CN200710087208 A CN 200710087208A CN 101269292 A CN101269292 A CN 101269292A
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Abstract
The invention relates to equipment which reclaims, comprehensively recycles and utilizes as well as processes exhaust gas containing various organic solvents without secondary pollution and the usage method thereof. The equipment and the method are characterized in that: while the exhaust gas containing various organic solvents which is generated in a production apparatus is reclaimed, gas, fluid as well as the residual heat generated during the processing procedure are recycled and utilized. Compared with the prior art, the equipment and the method can avoid the formation and the exhaustion of secondary pollutants at the same time of reclaiming the organic solvent, so as to realize the purpose of clean production in the exhaust gas treatment process.
Description
Technical field:
The invention belongs to the technical field that the multiple organic solvent that contains in the waste gas is reclaimed and utilizes, relate in particular to industry products such as printing, light industry, coating, chemical industry, electronics, containing of producing in process of production, multiple organic solvent reclaimed and recycling Apparatus for () and method therefor in the organic solvent waste gas.
Prior art: in the past only limit to the organic solvent in the waste gas is reclaimed to containing multiple organic solvent treatment of waste gas.For example, Chinese patent ZL200510200344.8 discloses a kind of method of automatic reclaiming process for industrial organic exhaust gas, Chinese patent ZL02233407.6 discloses a kind of NACF waste gas absorbing recovery device, above-mentioned patent does not all consider to have reclaimed the problem of the secondary emission thing that produces behind the organic solvent, does not therefore solve the secondary pollution problem that discharging causes.
The present invention has the following advantages and useful effect compared with the prior art:
1. the present invention has adopted and has contained multiple organic solvent absorption/desorption set composite, makes the multiple organic solvent that contains in the waste gas can finish the process of collection, absorption, desorption in proper order in this device, has fully guaranteed the high efficiente callback of organic solvent.
2. the multiple organic solvent absorption/desorption set composite collection that contains that the present invention adopts adsorbs, desorption is in one, can make and contain multiple organic solvent solution when being sent to next device behind the desorption, make multiple this system handles of organic solvent waste gas process that contains that is discharged in the atmosphere, the organic solvent that reclaims can put into production and recycle, utilize the waste heat of the steam after the desorption organic solvent uses simultaneously, in the multi-stage heat exchanger device, fully use, the water vapour that participates in desorption and rectifying is to circulate in the circulatory system of sealing, the material that does not efflux, said process circulates repeatedly, when fully reclaiming organic solvent, solved the gaseous state that produced in the organic solvent removal process and liquid object problem fully to outside environmental emission.
3. the present invention utilizes system in combination to arrange Recovery of Organic Solvent system, gas recovery system, steam waste heat, has saved floor space, has improved usage ratio of equipment, also can reduce the investment and the operating cost of equipment.
Summary of the invention:
At deficiency of the prior art and defective, purpose of the present invention and task provide a kind of recovery of non-secondary pollution and the Apparatus for () and method therefor that utilization contains multiple organic solvent waste gas, it can avoid having reclaimed the problem of the secondary emission thing that produces behind the organic solvent, the discharge standard of raising system arrives the requirement of zero-emission.
The invention is characterized in: a kind of recovery of non-secondary pollution and utilization contain the Apparatus for () and method therefor of multiple organic solvent waste gas, carry out according to the following steps:
1. the multiple organic solvent waste gas that contains that produces in the process units is formed little negative pressure by high pressure positive blower and collects through organic solvent gas sampling device and enter the organic exhaust gas filter and filter, deliver to the EGT adjusting device then and carry out the temperature adjustment, enter then to handle and contain in the absorption/desorption equality circuit of multiple organic solvent waste gas, the processing of having adsorbed multiple organic solvent contains the absorption of multiple organic solvent waste gas/desorption equality circuit through the steam desorption, the mixture of steam that contains multiple organic solvent that produces arrives the multi-stage heat exchanger device after heat exchange, the mixed aqueous solution that will contain multiple organic solvent is sent into organic solvent mixed liquor layering treating apparatus and is carried out layering, to form after the layering and water-solublely contain multiple organic solvent solution layer and water-insolublely contain multiple organic solvent solution layer, and water-insolublely contain multiple organic solvent solution and after collecting, need direct reuse in production by process units; And water-soluble contain multiple organic solvent solution must be after rectifier unit carries out rectifying, contain multiple organic solvent and need be back to production what obtain by process units.
2. through containing the clean gas that multiple organic solvent absorption/desorption set composite is handled, after temperature, the processing of humidity adjusting device, send into process units and use again.
3. handle the layering water that the back produces by organic solvent mixed liquor layering treating apparatus, the hot water that has uniform temperature that rectifier unit produces, send into steam raising plant through water pump respectively, deliver to absorption/desorption equality circuit that processing contains multiple organic solvent waste gas through the steam that airtight heat exchange produces, finish desorption and rectifying work in the rectifier unit, the mixture of steam that contains multiple organic solvent that is contained absorption/desorption equality circuit generation of multiple organic solvent waste gas by processing arrives the layering water of organic solvent mixed liquor layering treating apparatus through producing once more by the multi-stage heat exchanger device successively, get back to steam raising plant once more through water pump, another part is also got back to steam raising plant by the hot water that rectifier unit produces through water pump, so repeatedly recycles repeatedly;
4. after recirculated water is sent into the EGT adjusting device by water pump from cooling tower, enter the cooling of multi-stage heat exchanger device again by containing the mixture of steam that contains multiple organic solvent that multiple organic solvent waste gas absorption/desorption set composite desorption comes out, enter heat-exchanger rig heating absorption tail gas then and get back to cooling tower.
5. above-mentioned steps 1-4 process circulates automatically and carries out.
Realize the recovery of above-mentioned non-secondary pollution and the method that utilization contains multiple organic solvent exhaust gas apparatus, it comprises contains multiple Recovery of Organic Solvent cyclic utilization system, promptly the EGT adjusting device, contain multiple organic solvent absorption/desorption set composite, contain multiple organic solvent separator; The cyclic utilization system of steam; Waste gas reclaiming system after the processing.Its design feature is, the multiple organic solvent waste gas that contains that produces in the process units is formed little negative pressure after the collection of organic solvent gas sampling device enters the filtration of organic exhaust gas filter by high pressure positive blower, and then deliver to the EGT adjusting device through same high pressure positive blower malleation and carry out the temperature adjustment, enter then to handle and contain in the absorption/desorption equality circuit of multiple organic solvent waste gas, the processing of having adsorbed multiple organic solvent contains the absorption of multiple organic solvent waste gas/desorption equality circuit through the steam desorption, the mixture of steam that contains multiple organic solvent that produces arrives the multi-stage heat exchanger device after heat exchange, the mixed aqueous solution that will contain multiple organic solvent is sent into organic solvent mixed liquor layering treating apparatus and is carried out layering, to form after the layering and water-solublely contain multiple organic solvent solution layer and water-insolublely contain multiple organic solvent solution layer, and water-insolublely contain multiple organic solvent solution and after collecting, need direct reuse in production by process units; And water-soluble contain multiple organic solvent solution must be after rectifier unit carries out rectifying, contain multiple organic solvent and need be back to production what obtain by process units.According to above-mentioned technical scheme, described suction type in containing multiple organic solvent absorption/desorption set composite adopts replaceable, integrated form adsorbent bed; Describedly be connected with gas temperature, humidity adjusting device between multiple organic solvent absorption/desorption set composite and the process units in addition containing; Described organic solvent mixed liquor layering treating apparatus or rectifier unit and contain between the multiple organic solvent absorption/desorption set composite and also be connected with water pump and steam raising plant.
Description of drawings:
Accompanying drawing is to implement device structure connection layout of the present invention.
1. process units (containing organic solvent waste gas generation device); 2. organic solvent gas sampling device; 3. waste gas filter; 4. high pressure positive blower; 5. EGT adjusting device; 6. handle the absorption/desorption set composite that contains multiple organic solvent waste gas; 7. multi-stage heat exchanger device; 8. organic solvent mixed liquor layering treating apparatus; 9. rectifier unit; 10. temperature, humidity adjusting device; 11. water pump; 12. water pump; 13. steam raising plant; 14. cooling tower; 15. water pump
Identical described in the concrete steps of the inventive method and the technical scheme do not repeat them here.
Specific embodiments: the invention is characterized in: this method is carried out according to the following steps: the equipment of implementing the inventive method comprises that handling the absorption/desorption set composite [6], organic solvent mixed liquor layering treating apparatus [8], steam raising plant [13], temperature, the humidity adjusting device [10] that contain multiple organic solvent waste gas constitutes.The multiple organic solvent waste gas that contains that produces in the process units (containing organic solvent waste gas generation device) [1] is formed little negative pressure after entering organic exhaust gas filter [3] filtration after organic solvent gas sampling device [2] collection by high pressure positive blower [4], and then deliver to EGT adjusting device [5] through same high pressure positive blower [4] malleation and carry out the temperature adjustment, enter then to handle and contain in the absorption/desorption set composite [6] of multiple organic solvent waste gas, the processing of having adsorbed multiple organic solvent contains the absorption of multiple organic solvent waste gas/desorption set composite [6] through the steam desorption, after the mixture of steam that contains multiple organic solvent that produces arrives multi-stage heat exchanger device [7] heat exchange, the mixed aqueous solution that will contain multiple organic solvent is sent into organic solvent mixed liquor layering treating apparatus [8] and is carried out layering, to form after the layering and water-solublely contain multiple organic solvent solution layer and water-insolublely contain multiple organic solvent solution layer, and water-insolublely contain multiple organic solvent solution and after collecting, need direct reuse in production by process units [1]; And water-soluble contain multiple organic solvent solution must be after rectifier unit [9] carry out rectifying, contain multiple organic solvent and need be back to production what obtain by process units [1];
When the present invention moves, processing contains between absorption/desorption set composite [6] of having gas temperature, humidity adjusting device [10] to handle between the absorption/desorption set composite [6] of multiple organic solvent waste gas and the process units [1] to contain multiple organic solvent waste gas and the multi-stage heat exchanger device [7] steam raising plant [13] in addition, and the water among the steam raising plant [13] is from organic solvent mixed liquor layering treating apparatus [8], rectifier unit [9].
Claims (6)
1. the recovery of a non-secondary pollution and comprehensive cyclic utilization are handled the method contain multiple organic solvent waste gas, it is characterized in that: contain multiple Recovery of Organic Solvent system; The clean reclaiming system of waste gas; Bootstrap system, the discharging that this recovery and comprehensive cyclic utilization system do not produce secondary pollution, its system constitutes:
(1) the multiple organic solvent waste gas that contains that produces in the process units (containing organic solvent waste gas generation device) [1] is formed little negative pressure after organic solvent gas sampling device [2] collection enters organic exhaust gas filter [3] filtration by high pressure positive blower [4], deliver to EGT adjusting device [5] and carry out the temperature adjustment, enter then to handle and contain in the absorption/desorption set composite [6] of multiple organic solvent waste gas, the processing of having adsorbed multiple organic solvent contains the absorption of multiple organic solvent waste gas/desorption set composite [6] through the steam desorption, after the mixture of steam that contains multiple organic solvent that produces arrives multi-stage heat exchanger device [7] heat exchange, mixed solution is sent into organic solvent mixed liquor layering treating apparatus [8] carry out layering, form aqueous layer and organic solution layer, organic solution needs direct reuse in production by process units [1] after collecting; And the aqueous solution must be after rectifier unit [9] carry out rectifying, and the organic solvent that obtains need be back to production by process units [1];
(2) contain multiple organic solvent waste gas through after handling the absorption/desorption set composite [6] that contains multiple organic solvent waste gas and handling, after clean gas is handled by temperature, humidity adjusting device [10], need offer process units [1] and be used for producing by producing;
(3) handle the layering water that the back produces by organic solvent mixed liquor layering treating apparatus [8], the hot water that has uniform temperature that rectifier unit [9] produces, through water pump [11], [12] send into steam raising plant [13], deliver to absorption/desorption set composite [6] that processing contains multiple organic solvent waste gas through the steam that airtight heat exchange produces, finish desorption and rectifying work in the rectifier unit [9], the mixture of steam that contains multiple organic solvent that is contained absorption/desorption set composite [6] generation of multiple organic solvent waste gas by processing arrives the layering water that organic solvent mixed liquor layering treating apparatus [8] produces by multi-stage heat exchanger device [7] successively, get back to steam raising plant [13] once more through water pump [11], another part is also got back to steam raising plant [13] by the hot water that rectifier unit [9] produces through water pump [12], can repeatedly circulate repeatedly;
(4) after recirculated water is sent into EGT adjusting device [3] by water pump [15] from cooling tower [14], enter multi-stage heat exchanger device [7] heat exchange again and contain the mixture of steam that contains multiple organic solvent that absorption/desorption set composite [6] desorption comes out of multiple organic solvent waste gas, get back to cooling tower [14] after entering the clean gas that absorption/desorption set composite [6] that temperature, humidity adjusting device [10] heat treated contain multiple organic solvent waste gas discharges at last by processing;
(5) above (1), (2), (3), (4) process can be carried out according to the needs circulation of process units [1].
2. implement the recovery and the comprehensive cyclic utilization of the described a kind of non-secondary pollution of claim 1 and handle the device that contains multiple organic solvent waste gas, it comprises organic solvent gas sampling device [2], waste gas filter [3], blower fan [4], EGT adjusting device [5], handles the absorption/desorption set composite [6], multi-stage heat exchanger device [7], organic solvent mixed liquor layering treating apparatus [8], rectifier unit [9], temperature, the humidity adjusting device [10] that contain multiple organic solvent waste gas; Water pump [11], water pump [12], steam raising plant [13], cooling tower [14], water pump [15] constitute.
3. handle the device that contains multiple organic solvent waste gas according to the recovery of the described a kind of non-secondary pollution of claim 2 and comprehensive cyclic utilization, it is characterized in that: containing between the absorption/desorption set composite [6] of multiple organic solvent waste gas and the process units [1] in processing has gas temperature, humidity adjusting device [10].
4. handle the device that contains multiple organic solvent waste gas according to the recovery and the comprehensive cyclic utilization of the described a kind of non-secondary pollution of claim 2, it is characterized in that: containing between the absorption/desorption set composite [6] of multiple organic solvent waste gas and the multi-stage heat exchanger device [7] in processing has steam raising plant [13], and the water among the steam raising plant [13] is from organic solvent mixed liquor layering treating apparatus [8], rectifier unit [9].
5. handle the method that contains multiple organic solvent waste gas according to the recovery of the described a kind of non-secondary pollution of claim 1 and comprehensive cyclic utilization, it is characterized in that: it is main body that the suction type that described processing contains the absorption/desorption set composite [6] of multiple organic solvent waste gas adopts replaceable, integrated form adsorbent bed.
6. handle the device that contains multiple organic solvent waste gas according to the recovery and the comprehensive cyclic utilization of the described a kind of non-secondary pollution of claim 2, this method can be widely used in the multiple organic solvent waste gas that contains of industries generations such as plastics package printing, the printing of yew paper, facing paper printing, cigarette-brand wine head-stamp brush, coating, gluing.
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| CNA2007100872081A CN101269292A (en) | 2007-03-21 | 2007-03-21 | Non-secondary pollution cyclic utilization multi-organic waste gas treatment method |
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| CNA2007100872081A CN101269292A (en) | 2007-03-21 | 2007-03-21 | Non-secondary pollution cyclic utilization multi-organic waste gas treatment method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992005A (en) * | 2009-08-28 | 2011-03-30 | 杰智环境科技股份有限公司 | High efficient organic solvent recovery unit and temperature/humidity control method thereof |
| CN102764559A (en) * | 2012-07-27 | 2012-11-07 | 武汉旭日华科技发展有限公司 | Combined technique of separating and recycling VOCS (volatile organic compounds) from industrial waste gas by adsorption-desorption-rectification-pervaporation |
| CN103272454A (en) * | 2013-06-05 | 2013-09-04 | 中节能天辰(北京)环保科技有限公司 | Organic exhaust gas treatment method and apparatus |
| CN103480233A (en) * | 2013-09-11 | 2014-01-01 | 中节能天辰(北京)环保科技有限公司 | Apparatus and method for multi-stage absorption and recovery of organic waste gas |
| CN104067060A (en) * | 2012-02-28 | 2014-09-24 | 皇家飞利浦有限公司 | An apparatus for gas cleaning |
| CN106139815A (en) * | 2015-04-08 | 2016-11-23 | 江苏中远环保科技有限公司 | A kind of cleaning of evaporator gas withdrawal processing technique |
| CN108722107A (en) * | 2018-08-23 | 2018-11-02 | 苏州君绿环境技术服务有限公司 | A kind of organic waste gas treatment equipment |
-
2007
- 2007-03-21 CN CNA2007100872081A patent/CN101269292A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992005A (en) * | 2009-08-28 | 2011-03-30 | 杰智环境科技股份有限公司 | High efficient organic solvent recovery unit and temperature/humidity control method thereof |
| CN104067060A (en) * | 2012-02-28 | 2014-09-24 | 皇家飞利浦有限公司 | An apparatus for gas cleaning |
| CN104067060B (en) * | 2012-02-28 | 2015-09-09 | 皇家飞利浦有限公司 | For the device of gas sanitizes |
| CN102764559A (en) * | 2012-07-27 | 2012-11-07 | 武汉旭日华科技发展有限公司 | Combined technique of separating and recycling VOCS (volatile organic compounds) from industrial waste gas by adsorption-desorption-rectification-pervaporation |
| CN103272454A (en) * | 2013-06-05 | 2013-09-04 | 中节能天辰(北京)环保科技有限公司 | Organic exhaust gas treatment method and apparatus |
| CN103272454B (en) * | 2013-06-05 | 2016-07-20 | 中节能天辰(北京)环保科技有限公司 | VOCs treatment method and device |
| CN103480233A (en) * | 2013-09-11 | 2014-01-01 | 中节能天辰(北京)环保科技有限公司 | Apparatus and method for multi-stage absorption and recovery of organic waste gas |
| CN103480233B (en) * | 2013-09-11 | 2016-11-02 | 中节能天辰(北京)环保科技有限公司 | Apparatus for multi-stage absorption and recovery of organic waste gas and method |
| CN106139815A (en) * | 2015-04-08 | 2016-11-23 | 江苏中远环保科技有限公司 | A kind of cleaning of evaporator gas withdrawal processing technique |
| CN108722107A (en) * | 2018-08-23 | 2018-11-02 | 苏州君绿环境技术服务有限公司 | A kind of organic waste gas treatment equipment |
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Open date: 20080924 |