CN102563657A - Refuse incineration system and refuse incineration method for zero emission of flue gas pollutants - Google Patents
Refuse incineration system and refuse incineration method for zero emission of flue gas pollutants Download PDFInfo
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- CN102563657A CN102563657A CN2011103972726A CN201110397272A CN102563657A CN 102563657 A CN102563657 A CN 102563657A CN 2011103972726 A CN2011103972726 A CN 2011103972726A CN 201110397272 A CN201110397272 A CN 201110397272A CN 102563657 A CN102563657 A CN 102563657A
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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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
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Abstract
The invention discloses a refuse incineration system and a refuse incineration method for zero emission of flue gas pollutants, which belong to the technical field of environmental protection equipment and refuse incineration. Excessive oxygen is led into the system and recirculating flue gas is mixed into the system during refuse incineration, only a huge number of CO2 (carbon dioxide) gases containing various gas impurities are obtained in the refuse incineration mode, the flue gas mainly containing CO2 is cooled, purified, compressed and liquefied, finally high-purity CO2 is obtained and can be used as a chemical product or used for displacement of reservoir oil in an oil well or geological storage, other gases such as SO2 (sulfur dioxide), HCl (hydrogen chloride), NO (nitric oxide) and the like are recycled, and highly toxic substances such as dioxin and the like are collected in a classified manner and delivered to qualified institutions for centralized treatment. A refuse incineration power plant no longer emits any gas pollutants, secondary pollution of refuse incineration is thoroughly avoided, and zero emission of the flue gas pollutants is realized.
Description
Technical field
The invention belongs to environmental protection equipment and technology of garbage disposal technical field, particularly the garbage burning processing method and the system of a kind of flue gas pollutant zero-emission of the oxygen-enriched combusting of rubbish and pollutant recycling.
Technical background:
Each waste incineration power plant is the standard limit of smog release that reaches various countries; Reduce query and the repulsion of the common people, drop into great amount of manpower and material resources, financial resources are improved its system and optimize, and have adopted expensive and huge exhaust gas purification system incineration technology; At present domestic modal flue gas purifying technique adopts " semidry method+activated carbon injection+bag-type dust " scheme; Specially incineration tail gas is handled, not only increased substantially the expense of waste incineration, seriously undermined the technical advantage of waste incineration; And the secondary pollution problem still is not solved, and that gives incineration technology applies the band huge obstruction of knowing clearly.Along with expanding economy; People are to the further raising of environmental requirement, and discharge standard also can improve constantly, and China brings into schedule the NOx discharging of garbage power plant and the reduction of discharging of greenhouse gases at present; The flue gas of waste incineration is handled and is become increasingly complex, and garbage burning factory will can't bear the heavy load.
Summary of the invention:
To the problems referred to above, the purpose of this invention is to provide a kind of garbage burning processing method and system of flue gas pollutant zero-emission.
A kind of consumer waste incineration treatment system of flue gas pollutant zero-emission; This system comprises incinerator, waste heat boiler, sack cleaner, air separation unit, gas-to-gas heat exchanger, first condenser, first compressor, second condenser, second compressor, the 3rd compressor, Turbo-generator Set and the 3rd condenser; Wherein, The oxygen outlet of air separation unit links to each other with gas-to-gas heat exchanger; Dispose waste heat boiler and Turbo-generator Set on the incinerator, the main steam pipe of waste heat boiler links to each other with the steam turbine power generation unit, and the tail flue gas outlet of waste heat boiler links to each other with sack cleaner; The exhanst gas outlet of sack cleaner links to each other with gas-to-gas heat exchanger with incinerator respectively; Import links to each other the oxygen outlet of gas-to-gas heat exchanger with incinerator primary air, and the exhanst gas outlet of gas-to-gas heat exchanger links to each other with first condenser, first compressor, second condenser, second compressor, the 3rd condenser and the 3rd compressor successively, and said first condenser is provided with filter.
Said system is carried out the method for incineration treatment of garbage, and this method comprises the steps: that air isolates oxygen through air separation unit and get into gas-to-gas heat exchanger, and the byproduct high pure nitrogen of air separation unit can be directly as commodity selling.Discarded object burns in incinerator, and the steam that waste heat boiler comes out gets into Turbo-generator Set, carries out the UTILIZATION OF VESIDUAL HEAT IN generating, and burning electricity generation can be used for the power drive of air separation unit, first compressor, second compressor and the 3rd compressor; Flue gas that the waste heat boiler afterbody comes out gets into sack cleaner, and the flue gas part after sack cleaner is handled is returned incinerator as flue gas recycled, and another part flue gas gets into above-mentioned gas-to-gas heat exchanger and oxygen heat exchange from air separation unit; Oxygen after the heat exchange feeds incinerator, and the flue gas after the heat exchange gets into the cooling of first condenser, separates out the moisture (watery hydrochloric acid) that contains HCl; Filter is caught subparticles such as solid-state bioxin; Flue gas that first condenser comes out boosts to 1～2MPa through first compressor, be cooled to get in second condenser behind the normal temperature separate out dilute sulfuric acid, again through second compressor to the flue gas 2.5～3.5MPa that boosts; Be cooled to normal temperature; Separate out rare nitric acid through the 3rd condenser, boost to 6.5～7.5MPa through the 3rd compressor again, obtain highly purified liquid CO
2
Said discarded object is generally house refuse, medical waste and mud.
The air of air separation unit can be from fresh air, also can be to come from the air that the garbage pool spatial manipulation is crossed.
Beneficial effect of the present invention is:
1) the present invention produces oxygen through air separation unit, makes incinerator in combustion process, feed excess of oxygen, improves ignition temperature; And sneak into flue gas recycled, and regulate ignition temperature, fully improve the mixability of burning inner flue gas of the stove; Make rubbish be in " 3T " (suitable ignition temperature (Temperature), good turbulivity (Turbulence) and reaction time (Time)) fully state of a control; Thereby make incineration firing more abundant, reduced carbon content in the flying dust, thereby the gas-phase reaction of the bioxin of drawing up generates approach; And save combustion-supporting fuel greatly, reduce operating cost.This oxygen enrichment incineration firing is had to the CO that contains plurality of impurities gas to enormous quantity
2Gas is with CO
2The flue gas that is the master finally obtains highly purified CO through cooling off, purify, compressing and liquefying
2
2) air separation unit is nitrogen and oxygen separation, the nitrogen recycling utilization, and oxygen has improved ignition temperature like this through gas-to-gas heat exchanger heating back feeding incinerator, has reduced solid incomplete combustion loss Q
4With heat loss due to unburned gases Q
3,, significantly reduced heat loss due to exhaust gas Q because nitrogen does not get into the combustion space
2, combustion thermal efficiency improves greatly, and rubbish can be burnt under the combustion-supporting situation not mixing coal or mix oil, and saves cost greatly, and simultaneously, nitrogen is not participated in burning the generating probability of nitrogen oxide is significantly reduced.
3) owing to adopted partial fume recirculation, the fume emission volume reduces, and flue gas loss is reduced, thereby has also improved the thermal efficiency that burns.
4) finally obtain highly purified CO
2Can be used as the chemical products utilization or be used for the oil well displacement of reservoir oil or geology is buried, other like SO
2, HCl, NO etc. do extremely toxic substance categorised collection such as recycling ， bioxin and report and submit the unit Unified Treatment of qualification.Any gas pollutant will no longer discharge in waste incineration power plant, thoroughly solve the secondary pollution of waste incineration, reach flue gas zero disposal of pollutants.
Description of drawings
Fig. 1: a kind of schematic flow sheet of consumer waste incineration treatment system of flue gas pollutant zero-emission;
Label among the figure: 1 incinerator, 2 waste heat boilers, 3 sack cleaners, 4 air separation units, 5 gas-to-gas heat exchangers, 6 first condensers, 7 first compressors, 8 second condensers, 9 second compressors, 10 the 3rd condensers, 11 the 3rd compressors, 12 Turbo-generator Set.
The specific embodiment
Following embodiment can make those skilled in the art more comprehensively understand the present invention, but does not limit the present invention in any way.
Embodiment 1
A kind of consumer waste incineration treatment system of flue gas pollutant zero-emission; As shown in Figure 1, this system comprises incinerator 1, waste heat boiler 2, sack cleaner 3, air separation unit 4, gas-to-gas heat exchanger 5, first condenser 6, first compressor 7, second condenser 8, second compressor 9, the 3rd condenser 10, the 3rd compressor 11 and Turbo-generator Set 12.Wherein, The oxygen outlet of air separation unit 4 links to each other with gas-to-gas heat exchanger 5; Incinerator 1 is furnished with waste heat boiler 2 and Turbo-generator Set 12; Waste heat boiler 2 steam (vapor) outlets link to each other with Turbo-generator Set 12, and the exhanst gas outlet of waste heat boiler 2 links to each other with sack cleaner 3, and sack cleaner 3 links to each other with gas-to-gas heat exchanger 5 with incinerator 1 respectively; The wind inlet in the bottom of the oxygen outlet of gas-to-gas heat exchanger 5 and incinerator 1 links to each other, and the exhanst gas outlet of gas-to-gas heat exchanger 5 links to each other with first condenser 6, compressor 7, second condenser 8, compressor 9, the 3rd condenser 10, compressor 11 successively.Said first condenser is provided with filter.
Said system is carried out the method for incineration treatment of garbage; This method comprises the steps: that the air in house refuse pond extracts and enter into air separation unit 4 by air-introduced machine; Get into gas-to-gas heat exchanger 5 through air separation unit 4 isolated oxygen, the byproduct high pure nitrogen of air separation unit is directly as commodity selling.House refuse is burned in incinerator 1, and the steam that waste heat boiler 2 produces is used for Turbo-generator Set 12 generatings, and electric power is used for the power drive of air separation unit 4 and first compressor 7, second compressor 9, the 3rd compressor 11; Flue gas that waste heat boiler 2 comes out gets into sack cleaner 3, and the flue gas part after sack cleaner 3 is handled is returned incinerator 1 as flue gas recycled, and another part flue gas gets into above-mentioned gas-to-gas heat exchanger 5 and oxygen heat exchange from air separation unit 4; Oxygen after the heat exchange feeds incinerator 1, and the flue gas after the heat exchange gets into first condenser 6, is cooled to normal temperature and pressure; Separate out the moisture (watery hydrochloric acid) that contains HCl in the flue gas; Filter on first condenser is caught subparticles such as solid-state bioxin, and the flue gas that first condenser 6 comes out boosts to 1.5MPa through first compressor 7, is cooled to normal temperature; Flue gas is separated out dilute sulfuric acid in second condenser 8; Boost to 3MPa through 9 pairs of flue gases of second compressor again, be cooled to normal temperature, separate out rare nitric acid etc. through the 3rd condenser 10 flue gases; After the 3rd compressor 11 boosts to about 7MPa, obtain highly purified liquid CO
2
Finally obtain highly purified CO
2Can be used as the chemical products utilization or be used for the oil well displacement of reservoir oil or geology is buried, other like SO
2, HCl, NO etc. do extremely toxic substance categorised collection such as recycling ， bioxin and report and submit the unit Unified Treatment of qualification.Any gas pollutant will no longer discharge in waste incineration power plant, thoroughly solve the secondary pollution of waste incineration, reach flue gas zero disposal of pollutants.
Claims (5)
1. waste incineration processing system, it is characterized in that: this system comprises incinerator (1), waste heat boiler (2), sack cleaner (3), air separation unit (4), gas-to-gas heat exchanger (5), first condenser (6), first compressor (7), second condenser (8), second compressor (9), the 3rd condenser (10), the 3rd compressor (11) and Turbo-generator Set (12); Wherein, The oxygen outlet of air separation unit (4) links to each other with gas-to-gas heat exchanger (5); Incinerator (1) is furnished with waste heat boiler (2) and Turbo-generator Set (12); The main steam pipe of waste heat boiler (2) links to each other with steam turbine power generation unit (12); The exhanst gas outlet of waste heat boiler (2) links to each other with sack cleaner (3), and sack cleaner (3) exhanst gas outlet links to each other with gas-to-gas heat exchanger (5) with incinerator (1) respectively, and wind inlet in bottom of the oxygen outlet of gas-to-gas heat exchanger (5) and incinerator (1) links to each other; The exhanst gas outlet of gas-to-gas heat exchanger (5) links to each other with first condenser (6), first compressor (7), second condenser (8), second compressor (9), the 3rd condenser (10) and the 3rd compressor (11) successively, and said first condenser is provided with filter.
2. the said system of claim 1 carries out the method for incineration treatment of garbage, it is characterized in that: this method treatment step is following: air gets into gas-to-gas heat exchanger (5) through the isolated oxygen of air separation unit (4), and discarded object burns in incinerator (1); The steam that waste heat boiler (2) comes out gets into Turbo-generator Set (12), carries out the UTILIZATION OF VESIDUAL HEAT IN generating, and the flue gas that waste heat boiler (2) comes out gets into sack cleaner (3); Flue gas part after sack cleaner (3) is handled is returned incinerator (1) as flue gas recycled, and another part flue gas gets into above-mentioned gas-to-gas heat exchanger (5) and oxygen heat exchange from air separation unit (4), and the oxygen after the heat exchange feeds incinerator (1); Flue gas after the heat exchange gets into first condenser (6) cooling; Separate out the moisture that contains HCl, filter is caught solid-state bioxin subparticle, and the flue gas that first condenser (6) comes out boosts to 1～2MPa through first compressor (7); Be cooled to get in second condenser (8) behind the normal temperature and separate out dilute sulfuric acid; Again through second compressor (9) to the flue gas 2.5～3.5MPa that boosts, be cooled to normal temperature, separate out rare nitric acid through the 3rd condenser (10); Boost to 6.5～7.5MPa through the 3rd compressor, obtain highly purified liquid CO
2
3. method according to claim 2 is characterized in that: said Turbo-generator Set (12) electricity is used for the power drive of air separation unit (4), first compressor (7), second compressor (9) and the 3rd compressor (11).
4. method according to claim 2 is characterized in that: the air of air separation unit (4) is from fresh air, or comes from the air that the garbage pool spatial manipulation is crossed.
5. method according to claim 2 is characterized in that: said discarded object is house refuse, medical waste or mud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103972726A CN102563657A (en) | 2011-12-02 | 2011-12-02 | Refuse incineration system and refuse incineration method for zero emission of flue gas pollutants |
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| CN2011103972726A CN102563657A (en) | 2011-12-02 | 2011-12-02 | Refuse incineration system and refuse incineration method for zero emission of flue gas pollutants |
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| CN102563657A true CN102563657A (en) | 2012-07-11 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363530A (en) * | 2013-03-21 | 2013-10-23 | 温州市特种设备检测中心 | Leather waste vaporizing combustion and heat recovery system, and operation method thereof |
| CN103742918A (en) * | 2013-12-05 | 2014-04-23 | 谢华原 | Waste incineration treatment process |
| CN105444145A (en) * | 2015-12-30 | 2016-03-30 | 重庆科技学院 | Boiler system utilizing garbage incineration synthesis gas |
| CN105464727A (en) * | 2015-12-31 | 2016-04-06 | 重庆科技学院 | Boiler power generation system utilizing rubbish gasification and incineration synthesis gas |
| CN107917432A (en) * | 2017-11-23 | 2018-04-17 | 云南硕力科技有限公司 | A kind of consumer waste incineration emission-control equipment |
| CN108278615A (en) * | 2018-01-25 | 2018-07-13 | 中山中珠环保科技有限公司 | A kind of processing system and method for garbage incinerating power plant zero-emission |
| CN108826311A (en) * | 2018-06-09 | 2018-11-16 | 新苏环保研究院（江苏）有限公司 | Dangerous waste incineration flue gas is reduced and disappear white system and method |
| CN113877406A (en) * | 2021-11-17 | 2022-01-04 | 上海康恒环境股份有限公司 | Waste incineration flue gas treatment system and treatment method |
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Patent Citations (5)
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363530A (en) * | 2013-03-21 | 2013-10-23 | 温州市特种设备检测中心 | Leather waste vaporizing combustion and heat recovery system, and operation method thereof |
| CN103363530B (en) * | 2013-03-21 | 2015-10-21 | 温州市特种设备检测中心 | A kind of leather waste gasification, and combustion and heat recovery system and method for operating thereof |
| CN103742918A (en) * | 2013-12-05 | 2014-04-23 | 谢华原 | Waste incineration treatment process |
| CN103742918B (en) * | 2013-12-05 | 2016-04-20 | 谢华原 | Incineration treatment of garbage technique |
| CN105444145A (en) * | 2015-12-30 | 2016-03-30 | 重庆科技学院 | Boiler system utilizing garbage incineration synthesis gas |
| CN105464727A (en) * | 2015-12-31 | 2016-04-06 | 重庆科技学院 | Boiler power generation system utilizing rubbish gasification and incineration synthesis gas |
| CN107917432A (en) * | 2017-11-23 | 2018-04-17 | 云南硕力科技有限公司 | A kind of consumer waste incineration emission-control equipment |
| CN107917432B (en) * | 2017-11-23 | 2019-12-20 | 云南硕力科技有限公司 | Domestic waste burns exhaust treatment device |
| CN108278615A (en) * | 2018-01-25 | 2018-07-13 | 中山中珠环保科技有限公司 | A kind of processing system and method for garbage incinerating power plant zero-emission |
| CN108826311A (en) * | 2018-06-09 | 2018-11-16 | 新苏环保研究院（江苏）有限公司 | Dangerous waste incineration flue gas is reduced and disappear white system and method |
| CN113877406A (en) * | 2021-11-17 | 2022-01-04 | 上海康恒环境股份有限公司 | Waste incineration flue gas treatment system and treatment method |
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Application publication date: 20120711 |