CN103115362A - Oxygen-enriched combustion method ensuring dioxin emission in garbage incinerator reaching standard - Google Patents
Oxygen-enriched combustion method ensuring dioxin emission in garbage incinerator reaching standard Download PDFInfo
- Publication number
- CN103115362A CN103115362A CN2013100176220A CN201310017622A CN103115362A CN 103115362 A CN103115362 A CN 103115362A CN 2013100176220 A CN2013100176220 A CN 2013100176220A CN 201310017622 A CN201310017622 A CN 201310017622A CN 103115362 A CN103115362 A CN 103115362A
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- Prior art keywords
- oxygen
- dioxin
- incinerator
- standard
- guaranteeing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 65
- 239000001301 oxygen Substances 0.000 title claims abstract description 65
- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 31
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 title claims 12
- 238000009841 combustion method Methods 0.000 title abstract 3
- 238000002485 combustion reaction Methods 0.000 claims abstract description 13
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 13
- 230000003647 oxidation Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 30
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 11
- 239000003546 flue gas Substances 0.000 claims description 11
- 238000004056 waste incineration Methods 0.000 claims description 10
- 238000010304 firing Methods 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000036632 reaction speed Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- KVGZZAHHUNAVKZ-UHFFFAOYSA-N 1,4-Dioxin Chemical compound O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 abstract description 38
- 238000000354 decomposition reaction Methods 0.000 abstract description 3
- 239000000779 smoke Substances 0.000 abstract description 3
- 239000000446 fuel Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 208000011580 syndromic disease Diseases 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- -1 combustible is few Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Incineration Of Waste (AREA)
Abstract
The invention relates to an oxygen-enriched combustion method ensuring dioxin emission in garbage incinerator reaching the standard. The oxygen-enriched combustion method is characterized in that oxygen of proper amount is filled in secondary air of a garbage incinerator, the quantity of the second air is adjusted so as to form an oxygen-enriched sate and enable a garbage second combustion chamber to form oxygen-enriched combustion (an oxidation state), garbage combustion is ensured on the basis of the oxidation state, and the quantity of first air of the garbage incinerator is adjusted so as to enable a main combustion chamber to form anoxycausis (a reducing state). The quantity of the first air and the quantity of the second air are adjusted so as to adjust generation of smoke quantity after garbage incineration, enable smoke temperature graduation to be maintained more than 850 DEG C, and stay time to be longer than 2 seconds, and therefore the sufficient staying in an environment more than 850 DEG C and standard decomposition of dioxin are ensured, and the purposes of using oxygen for replacing oil and ensuring standard emission of the dioxin are achieved.
Description
Technical field
The present invention relates to a kind of oxygen-enriched combusting method of guaranteeing that in incinerator dioxin is up to standard, refer in particular to the application in incinerator.
Background technology
the incineration treatment of garbage technology is innoxious with it, the characteristics such as minimizing and resource effect are better, just receiving increasing concern in China, and domestic MSW heating value is low, constituent is complicated, mostly be garbage, combustible is few, water content is high, can not satisfy the incinerator bore temperature far away more than 850 ℃, be difficult to guarantee the stability of decomposition of dioxin condition and burning, more because the refuse thermal value fluctuation is large, incineration plant is engraved in more than 850 ℃ when being difficult to guarantee the incinerator bore temperature, therefore garbage burning factory needs in time to drop into a large amount of auxiliary fuel burnings at Refuse Incineration Process, be engraved in more than 850 ℃ when guaranteeing the incinerator bore temperature, but the domestic garbage burning factory overwhelming majority is the market mechanism enterprise of non-public welfare, even if some government finance subsidy, can't offset be also to be engraved in the fuel cost that increases more than 850 ℃ when guaranteeing the incinerator bore temperature, add the pursuing profits property of enterprise, therefore require dioxin really to be up to state standards unpractical beyond doubt, in addition, dioxin can't be monitored online constantly, and the sampling observation detection difficulty is larger, does not accomplish to monitor constantly.Due to these odjective causes, cause general public can not accept the incineration treatment of garbage technology.
Enter 21st century, the fast development of national economy, China increases day by day to the demand of the energy, and the requirement of environmental protection is improved day by day, controls fuel consumption and dioxin, has been the realistic problem that China's waste incineration industry has to face.
Summary of the invention
For the deficiency in the incineration treatment of garbage technology, the present invention proposes a kind of oxygen-enriched combusting method of guaranteeing that in incinerator dioxin is up to standard.
For reaching above purpose, the solution of the present invention is:
A kind of oxygen-enriched combusting method of guaranteeing that in incinerator dioxin is up to standard, it is characterized in that utilizing oxygen-enriched combusting method, pass into appropriate oxygen in the incinerator Secondary Air, and regulate the Secondary Air air quantity, to form the oxygen enrichment state, make the rubbish secondary combustion chamber form oxygen-enriched combusting (state of oxidation), on this basis, when guaranteeing incineration firing, regulate wind air quantity of incinerator, make the rubbish main chamber form anoxycausis (reducing condition); By regulating wind air quantity of incinerator, Secondary Air air quantity, generation with exhaust gas volumn after the adjusting waste incineration, flue-gas temperature is remained on more than 850 ℃ constantly, the time of staying was greater than 2 seconds, and then guarantee that dioxin stops fully, decomposes up to standard at the environment more than 850 ℃, reach the purpose of " with oxo oil, guaranteeing that dioxin is up to standard ".
Further, the rubbish main chamber forms anoxycausis, has reduced dioxin formation under reducing condition; The rubbish secondary combustion chamber forms oxygen-enriched combusting, has guaranteed that under the oxidation condition of high temperature dioxin decomposes up to standard.
Further, the dynamic adjustments by to amount of oxygen in the incinerator Secondary Air and wind of incinerator, Secondary Air air quantity is engraved in when guaranteeing fire box temperature more than 850 ℃.
Further, by the dynamic adjustments to oxygen quality and oxygen velocity in the incinerator Secondary Air, guarantee abundant disturbance and the mixing of flue gas and oxygen, guarantee that dioxin stops fully at the environment more than 850 ℃.
Further, utilize oxygen to reduce material ignition heat, fast reaction speed, fortification substance aptitude to burn, guarantee that dioxin decomposes at the environment more than 850 ℃ up to standard, guarantee that volatile matter and the carbon burning of waste incineration generation is abundant.
The present invention is to reach " with oxo oil; guarantee that dioxin is up to standard " for main purpose, utilize oxygen-enriched combusting method, pass into appropriate oxygen in the incinerator Secondary Air, and regulate the Secondary Air air quantity, to form the oxygen enrichment state, make the rubbish secondary combustion chamber form oxygen-enriched combusting (state of oxidation), on this basis, when guaranteeing incineration firing, regulate wind air quantity of incinerator, make the rubbish main chamber form anoxycausis (reducing condition); By regulating wind air quantity of incinerator, Secondary Air air quantity, generation with exhaust gas volumn after the adjusting waste incineration, flue-gas temperature is remained on more than 850 ℃ constantly, and the time of staying is greater than 2 seconds, and then guarantees that dioxin stops fully, decomposes up to standard at the environment more than 850 ℃.Characteristics of the present invention are as follows:
1. the reduction reaction in the adjusting Refuse Incineration Process, reduce dioxin and form.
The method is utilized oxygen-enriched combusting method, when guaranteeing incineration firing, regulates wind air quantity of incinerator, makes the rubbish main chamber form anoxycausis (reducing condition), reduces dioxin and generate under reducing condition.
2. the oxidation reaction in the adjusting Refuse Incineration Process, reduce dioxin.
The method is utilized oxygen-enriched combusting method, pass into appropriate oxygen in the incinerator Secondary Air, and regulate the Secondary Air air quantity, to form the oxygen enrichment state, make the rubbish secondary combustion chamber form oxygen-enriched combusting (state of oxidation), guarantee that under the oxidation condition of high temperature dioxin decomposes up to standard.
3. guarantee dioxin decomposition temperature and the time of staying, dioxin is decomposed up to standard.
The method is not done any change to the incinerator agent structure, when refuse thermal value is lower than the design calorific value in the incinerator running, fire box temperature does not reach 850 ℃, traditional method is to regulate air quantity, wind-warm syndrome and the auxiliary fuel that comes into operation, but it is not good: merely regulate air quantity and do not throw oxygen, can cause burning insufficient, more easily form dioxin; If regulate wind-warm syndrome and the auxiliary fuel that comes into operation, can increase power plant's operating cost.The method is in incinerator operation process, by regulating wind air quantity of incinerator, Secondary Air air quantity, generation with exhaust gas volumn after the adjusting waste incineration, flue-gas temperature is remained on more than 850 ℃ constantly, the time of staying is greater than 2 seconds, and then guarantees that dioxin stops fully, decomposes up to standard at the environment more than 850 ℃.
4. strong to the refuse thermal value range accommodation.
Fire box temperature does not reach 850 ℃ in the incinerator running, and conventional method is that the auxiliary fuel that comes into operation is kept fire box temperature.The method is ensureing burning with on the basis of oxygen, and the dynamic adjustments by to amount of oxygen in the incinerator Secondary Air and wind of incinerator, Secondary Air air quantity is engraved in more than 850 ℃ when controlling the incinerator bore temperature.
5. minimizing flue gas discharge capacity reduces blower fan power consumption, increases generated energy.
The method is under identical refuse thermal value condition, and the total blast volume that the unit interval passes into the incinerator burner hearth reduces, and pressure fan, the acting of air-introduced machine unit interval reduce, and motor power consumption reduces; In addition, the total blast volume that passes into the incinerator burner hearth reduces, and the exhaust gas volumn that incineration firing produces reduces, and smoke discharge amount reduces; The exhaust gas volumn that incineration firing produces reduces, and the heat of being taken away by flue gas reduces, but the heat that incineration firing produces is constant, thus there is more heat to be used for generating by waste heat boiler, thus increase generated energy.
Description of drawings:
Fig. 1 is a kind of oxygen-enriched combusting method schematic diagram of guaranteeing that in incinerator dioxin is up to standard.
Specific embodiments:
Below in conjunction with specification and Fig. 1, guarantee in incinerator that dioxin oxygen-enriched combusting method up to standard is described further.
Guarantee the oxygen-enriched combusting method that dioxin is up to standard in incinerator: utilize oxygen-enriched combusting method, pass into appropriate oxygen in the incinerator Secondary Air, and adjusting Secondary Air air quantity, to form the oxygen enrichment state, make the rubbish secondary combustion chamber form oxygen-enriched combusting (state of oxidation), on this basis, when guaranteeing incineration firing, regulate wind air quantity of incinerator, make the rubbish main chamber form anoxycausis (reducing condition); By regulating wind air quantity of incinerator, Secondary Air air quantity, generation with exhaust gas volumn after the adjusting waste incineration, flue-gas temperature is remained on more than 850 ℃ constantly, the time of staying was greater than 2 seconds, and then guarantee that dioxin stops fully, decomposes up to standard at the environment more than 850 ℃, reach the purpose of " with oxo oil, guaranteeing that dioxin is up to standard ".
The rubbish main chamber forms anoxycausis, has reduced dioxin formation under reducing condition; The rubbish secondary combustion chamber forms oxygen-enriched combusting, has guaranteed that under the oxidation condition of high temperature dioxin decomposes up to standard.
Dynamic adjustments by to amount of oxygen in the incinerator Secondary Air and wind of incinerator, Secondary Air air quantity is engraved in when guaranteeing fire box temperature more than 850 ℃.
By the dynamic adjustments to oxygen quality and oxygen velocity in the incinerator Secondary Air, guarantee abundant disturbance and the mixing of flue gas and oxygen, guarantee that dioxin stops fully at the environment more than 850 ℃.
Utilize oxygen to reduce material ignition heat, fast reaction speed, fortification substance aptitude to burn, guarantee that dioxin decomposes at the environment more than 850 ℃ up to standard, guarantee that volatile matter and the carbon burning of waste incineration generation is abundant.
To reach " with oxo oil; guarantee that dioxin is up to standard " for main purpose, utilize oxygen-enriched combusting method, pass into appropriate oxygen in the incinerator Secondary Air, and regulate the Secondary Air air quantity, to form the oxygen enrichment state, make the rubbish secondary combustion chamber form oxygen-enriched combusting (state of oxidation), on this basis, when guaranteeing incineration firing, regulate wind air quantity of incinerator, make the rubbish main chamber form anoxycausis (reducing condition); By regulating wind air quantity of incinerator, Secondary Air air quantity, generation with exhaust gas volumn after the adjusting waste incineration, flue-gas temperature is remained on more than 850 ℃ constantly, and the time of staying is greater than 2 seconds, and then guarantees that dioxin stops fully, decomposes up to standard at the environment more than 850 ℃.
Above enforcement; only to general description of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; anyone all should fall in the definite protection domain of claims of the present invention various distortion and improvement that technical scheme of the present invention is made.
Claims (5)
1. oxygen-enriched combusting method of guaranteeing that in incinerator dioxin is up to standard, it is characterized in that utilizing oxygen-enriched combusting method, pass into appropriate oxygen in the incinerator Secondary Air, and regulate the Secondary Air air quantity, to form the oxygen enrichment state, make the rubbish secondary combustion chamber form oxygen-enriched combusting (state of oxidation), on this basis, when guaranteeing incineration firing, regulate wind air quantity of incinerator, make the rubbish main chamber form anoxycausis (reducing condition); By regulating wind air quantity of incinerator, Secondary Air air quantity, generation with exhaust gas volumn after the adjusting waste incineration, flue-gas temperature is remained on more than 850 ℃ constantly, the time of staying was greater than 2 seconds, and then guarantee that dioxin stops fully, decomposes up to standard at the environment more than 850 ℃, reach the purpose of " with oxo oil, guaranteeing that dioxin is up to standard ".
2. a kind of oxygen-enriched combusting method of guaranteeing that in incinerator dioxin is up to standard as claimed in claim 1, is characterized in that the rubbish main chamber forms anoxycausis, has reduced dioxin formation under reducing condition; The rubbish secondary combustion chamber forms oxygen-enriched combusting, has guaranteed that under the oxidation condition of high temperature dioxin decomposes up to standard.
3. a kind of oxygen-enriched combusting method of guaranteeing that in incinerator dioxin is up to standard as claimed in claim 1, it is characterized in that being engraved in when guaranteeing fire box temperature more than 850 ℃ by the dynamic adjustments to amount of oxygen in the incinerator Secondary Air and wind of incinerator, Secondary Air air quantity.
4. a kind of oxygen-enriched combusting method of guaranteeing that in incinerator dioxin is up to standard as claimed in claim 1, it is characterized in that by the dynamic adjustments to oxygen quality and oxygen velocity in the incinerator Secondary Air, guarantee abundant disturbance and the mixing of flue gas and oxygen, guarantee that dioxin stops fully at the environment more than 850 ℃.
5. a kind of oxygen-enriched combusting method of guaranteeing that in incinerator dioxin is up to standard as claimed in claim 1, it is characterized in that utilizing oxygen to reduce material ignition heat, fast reaction speed, fortification substance aptitude to burn, guarantee that dioxin decomposes at the environment more than 850 ℃ up to standard, guarantee that volatile matter and the carbon burning of waste incineration generation is abundant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100176220A CN103115362A (en) | 2013-01-17 | 2013-01-17 | Oxygen-enriched combustion method ensuring dioxin emission in garbage incinerator reaching standard |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100176220A CN103115362A (en) | 2013-01-17 | 2013-01-17 | Oxygen-enriched combustion method ensuring dioxin emission in garbage incinerator reaching standard |
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| CN103115362A true CN103115362A (en) | 2013-05-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157032A (en) * | 2015-09-15 | 2015-12-16 | 鑫源昊（北京）环保能源科技有限公司 | Magnetization cracking device |
| CN105351942A (en) * | 2015-12-08 | 2016-02-24 | 华中科技大学 | Pyrolysis and gasification garbage incinerator adopting oxygen enriched combustion technique |
| CN107178785A (en) * | 2017-07-28 | 2017-09-19 | 贵州富燃环保科技有限公司 | A kind of circulating fluid bed garbage furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07332642A (en) * | 1994-06-03 | 1995-12-22 | Kubota Corp | Garbage incinerator |
| CN2581822Y (en) * | 2002-09-12 | 2003-10-22 | 广州贝龙环保热力设备股份有限公司 | Refuse pyrolising incinerator |
| CN2656830Y (en) * | 2003-10-20 | 2004-11-17 | 张慎发 | Refuse burning gasification furnace |
| CN2658586Y (en) * | 2003-11-18 | 2004-11-24 | 吴柏梁 | Smoke control type medical waste material pyrolytic incinerator |
| CN101101120A (en) * | 2007-07-27 | 2008-01-09 | 福建省丰泉环保设备有限公司 | Double-loop double-pyrogenation incinerator for garbage harmless treatment and its usage method |
| CN101788150A (en) * | 2010-01-26 | 2010-07-28 | 清华大学 | Roller fire grate garbage incinerator and preheating combustion method |
-
2013
- 2013-01-17 CN CN2013100176220A patent/CN103115362A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07332642A (en) * | 1994-06-03 | 1995-12-22 | Kubota Corp | Garbage incinerator |
| CN2581822Y (en) * | 2002-09-12 | 2003-10-22 | 广州贝龙环保热力设备股份有限公司 | Refuse pyrolising incinerator |
| CN2656830Y (en) * | 2003-10-20 | 2004-11-17 | 张慎发 | Refuse burning gasification furnace |
| CN2658586Y (en) * | 2003-11-18 | 2004-11-24 | 吴柏梁 | Smoke control type medical waste material pyrolytic incinerator |
| CN101101120A (en) * | 2007-07-27 | 2008-01-09 | 福建省丰泉环保设备有限公司 | Double-loop double-pyrogenation incinerator for garbage harmless treatment and its usage method |
| CN101788150A (en) * | 2010-01-26 | 2010-07-28 | 清华大学 | Roller fire grate garbage incinerator and preheating combustion method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157032A (en) * | 2015-09-15 | 2015-12-16 | 鑫源昊（北京）环保能源科技有限公司 | Magnetization cracking device |
| CN105351942A (en) * | 2015-12-08 | 2016-02-24 | 华中科技大学 | Pyrolysis and gasification garbage incinerator adopting oxygen enriched combustion technique |
| CN105351942B (en) * | 2015-12-08 | 2018-04-24 | 华中科技大学 | A kind of pyrolytic gasification waste incinerator using oxygen-enriched combustion technology |
| CN107178785A (en) * | 2017-07-28 | 2017-09-19 | 贵州富燃环保科技有限公司 | A kind of circulating fluid bed garbage furnace |
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Owner name: CHONGQING FURAN TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: XIANG JIAYING Effective date: 20150506 Free format text: FORMER OWNER: REN YANG WANG XINRUI WU FANGLUN QIN ZHONGMEI Effective date: 20150506 |
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Application publication date: 20130522 |