CN104501203A - Gas mixture ratio control apparatus and method implementing low-nitrogen combustion by oxygen-deficient CO2-rich gas - Google Patents
Gas mixture ratio control apparatus and method implementing low-nitrogen combustion by oxygen-deficient CO2-rich gas Download PDFInfo
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- CN104501203A CN104501203A CN201410804389.5A CN201410804389A CN104501203A CN 104501203 A CN104501203 A CN 104501203A CN 201410804389 A CN201410804389 A CN 201410804389A CN 104501203 A CN104501203 A CN 104501203A
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- 239000007789 gas Substances 0.000 title claims abstract description 83
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 17
- 239000001301 oxygen Substances 0.000 title abstract 3
- 229910052760 oxygen Inorganic materials 0.000 title abstract 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title abstract 2
- 230000002950 deficient Effects 0.000 title abstract 2
- 239000000203 mixture Substances 0.000 title abstract 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000003546 flue gas Substances 0.000 claims abstract description 19
- 239000000779 smoke Substances 0.000 claims description 61
- 239000003595 mist Substances 0.000 claims description 39
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 38
- 239000000446 fuel Substances 0.000 claims description 19
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 239000002918 waste heat Substances 0.000 claims description 4
- 206010002660 Anoxia Diseases 0.000 claims description 3
- 241000976983 Anoxia Species 0.000 claims description 3
- 206010021143 Hypoxia Diseases 0.000 claims description 3
- 230000007953 anoxia Effects 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 3
- 239000008246 gaseous mixture Substances 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 3
- 125000001477 organic nitrogen group Chemical group 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 3
- 239000002912 waste gas Substances 0.000 claims description 3
- 239000000284 extract Substances 0.000 abstract description 5
- 238000006479 redox reaction Methods 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- -1 oxygen nitride Chemical class 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 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
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- Treating Waste Gases (AREA)
- Air Supply (AREA)
Abstract
The invention provides a gas mixture ratio control apparatus and method implementing low-nitrogen combustion by oxygen-deficient CO2-rich gas. The apparatus comprises an air preheater, a mixed gas tank, a blower, a boiler flue gas reflow pipe, a fresh air pipe and a blower air pipe; one end of a flue gas incoming chamber of the air preheater is communicated with a flue gas outlet of a boiler and communicated with the mixed gas tank through the boiler flue gas reflow pipe; a fresh air outlet of the fresh air preheater is communicated with the mixed gas tank through the fresh air pipe; the mixed gas tank is communicated with an air inlet of the blower; the blower is communicated with a primary air chamber inlet of the boiler. The blower extracts boiler flue gas and fresh air through the boiler flue gas reflow pipe and the fresh air pipe, respectively; the boiler flue gas and the fresh air are mixed well in the mixed gas tank; mixed gas is blown into the boiler by the blower; various gases engage in oxidation-reduction reactions in a hearth of the boiler; thus, oxygen nitride is eliminated or largely decreased.
Description
Technical field
The present patent application relates to the Apparatus and method for that a kind of anoxic CO 2 enriched gas realizes the gas and vapor permeation ratio control of low nitrogen burning, relate to the technological transformation of middle-size and small-size industrial layers combusting boiler, can realize energy-conservation and alleviate boiler combustion time nitrogen oxide generation, thus reach the object of energy-saving and emission-reduction, environmental protect.
Background technology
Fuel three kinds of combustion systems are in the boiler layer combustion, boiling type burning, suspension combustion.Layer combustion is exactly be placed in by fuel on the fire grate of fixing or movement, formed uniform, have the certain thickness bed of material, air passes into bottom fire grate, carries out combustion reaction by fuel bed, and the boiler of employing layer combustion is grate furnace.Grate furnace is divided into again according to fire grate form difference: handwarmer, stoker feed stove, and wherein stoker feed stove has chain furnace, vibration grate furnace, reciprocating grate furnace, spreader stoker boiler etc.
Existing boiler combustion, boiler smoke is arranged outward without reflow treatment, make the boiler smoke nitrous oxides concentration of outer row and temperature higher, cause toxic emission to exceed standard and thermal pollution; The blast temperature of boiler blower is gas at normal temperature, makes the waste heat of boiler discharged gas fume can not get effective utilization, the fuel that waste is valuable.
Summary of the invention
The present patent application is in order to improve the efficiency of combustion of boiler and reduce the generation of nitrogen oxide, the Apparatus for () and method therefor that the gas and vapor permeation ratio providing a kind of anoxic CO 2 enriched gas to realize low nitrogen burning controls.
An object of the present patent application is to provide a kind of equipment realizing the gas and vapor permeation ratio control of low nitrogen burning.
Specifically, the equipment that the gas and vapor permeation ratio that anoxic CO 2 enriched gas described in the present patent application realizes low nitrogen burning controls, comprise air preheater, mist case, air blast, boiler smoke backflow smoke pipe, fresh air airduct and air blast airduct, the exhanst gas outlet of one end and boiler that the flue gas of air preheater enters smoke-box communicates, and communicated with mist case by boiler smoke backflow smoke pipe, the fresh air gas outlet of air preheater is communicated with mist case by fresh air airduct, mist case communicates with the air intake vent of air blast, air blast is communicated with the First air air compartment air intake vent of boiler by air blast airduct, for the First air air compartment of boiler provides mist.
Further, one end of described boiler smoke backflow smoke pipe enters smoke-box by the flue gas being welded to connect air preheater, and the other end is connected with mist case by welding.
Further, described boiler smoke return duct is provided with the first valve, is used for controlling the size of smoke backflow gas flow.
Further, one end of described fresh air airduct is by being welded to connect the fresh air gas outlet of air preheater, and the other end is connected with mist case by welding.
Further, described fresh air airduct is provided with the second valve, controls the air capacity size of the fresh preheated air supplemented.
The Apparatus and method for that the gas and vapor permeation ratio that described anoxic CO 2 enriched gas realizes low nitrogen burning controls, by regulating above-mentioned two valves, controls the air quantity of two strands of gases.
Further, described boiler smoke backflow smoke pipe is connected with screw by flange with the first valve.
Further, air inlet and air outlet flange and the bolt of described air blast airduct and air blast are connected, and described air blast airduct and mist case are by being welded to connect.
Another object of the present patent application is to provide the method that anoxic CO 2 enriched gas realizes the gas and vapor permeation ratio control of low nitrogen burning, described method uses above-mentioned equipment, the exhanst gas outlet of one end and boiler that the flue gas of air preheater enters smoke-box communicates, and be connected with mist case by boiler smoke backflow smoke pipe, the fresh air gas outlet of air preheater is communicated with mist case by fresh air airduct, mist case is connected with the air intake vent of air blast, air blast is connected with the First air air compartment air intake vent of boiler by air blast airduct, for the First air air compartment of boiler provides gaseous mixture, smoke backflow in boiler smoke backflow smoke pipe makes the gas concentration lwevel of boiler internal higher, cause the fuel anoxycausis of boiler internal, the carbon dioxide of backflow and carbon black granules and fuel Formed, following reaction can be formed: C+CO under this ignition temperature and anoxia condition
2=2CO, 2C+O
2=2CO, the main source of boiler discharged nitrous oxides is fuel NO, the nitric oxide that the organic nitrogen both in fuel can generate fast when lower temperature combustion, accounts for the nitrogen oxide ratio of boiler waste gas discharge more than 90%, when the carbon monoxide of the very high concentration produced under the nitric oxide generated runs into anoxycausis condition, following chemical reaction can be there is under this temperature conditions: 2CO+2NO=2CO
2+ N
2, the conversion of nitric oxide gas being about to generate becomes nitrogen, thus realizes removing most fuel NO in combustion, reaches the emission reduction effect reducing nitrogen oxide generation.
Further, in said method, the fresh air of supplement boiler, by the preheating of air preheater, makes outer row's temperature of boiler smoke reduce, and makes full use of the waste heat in boiler smoke, reach the object of energy-saving and emission-reduction.
Further, in said method, described air blast extracts the mist of boiler backflow flue gas and the fresh air through air preheater preheating from mist case, delivers in the First air air compartment of boiler lower end.
The course of work of the Apparatus and method for that the gas and vapor permeation ratio that anoxic CO 2 enriched gas of the present invention realizes low nitrogen burning controls is: air blast extracts boiler smoke and fresh air respectively by boiler smoke backflow smoke pipe and fresh air airduct, after mixing in mist case, be sent in boiler by air blast airduct, there is redox reaction in various gas, reach the effect eliminating or significantly reduce nitrogen oxide in boiler furnace.
Accompanying drawing explanation
Fig. 1 is the structural representation of the equipment that the gas and vapor permeation ratio realizing low nitrogen burning described in the present patent application controls; Wherein, 1 be boiler, 11 be exhanst gas outlet, 12 be air intake vent, 2 be air preheater, 3 for flue gas, to enter smoke-box, 41 be the first valve, 42 is that the second valve, 5 is fresh air airduct, 7 is mist case, 8 be air blast, 9 is air blast airduct for boiler smoke backflow smoke pipe, 6.
Detailed description of the invention
Below in conjunction with specific embodiment, nonrestrictive explanation is done to the Apparatus for () and method therefor that the gas and vapor permeation ratio that the anoxic CO 2 enriched gas described in the present patent application realizes low nitrogen burning controls.
As shown in Figure 1, the equipment that the gas and vapor permeation ratio realizing low nitrogen burning described in the present patent application controls, comprise air preheater 2, mist case 7, air blast 8, boiler smoke backflow smoke pipe 5, fresh air airduct 6 and air blast airduct 9, the exhanst gas outlet 11 of one end and boiler 1 that the flue gas of air preheater 2 enters smoke-box 3 communicates, and communicated with mist case 7 by boiler smoke backflow smoke pipe 5, the fresh air gas outlet of air preheater 2 is communicated with mist case 7 by fresh air airduct 6, mist case 7 communicates with the air intake vent of air blast 8, air blast 8 is communicated with the First air air compartment air intake vent 12 of boiler 1 by air blast airduct 9, for the First air air compartment of boiler provides mist.Further, one end of described boiler smoke backflow smoke pipe 5 enters smoke-box 3 by the flue gas being welded to connect air preheater, the other end is connected with mist case 7 by welding, described boiler smoke return duct 5 is provided with the first valve 41, be used for controlling the size of smoke backflow gas flow, described fresh air airduct 6 is provided with the second valve 42, control the air capacity size of the fresh preheated air supplemented, by regulating above-mentioned two valves, control the air quantity of two strands of gases, further, described boiler smoke backflow smoke pipe 5 is connected with screw by flange with the first valve 41, described fresh air airduct 6 is connected with screw by flange with the second valve 42, air inlet and air outlet flange and the bolt of described air blast airduct 9 and air blast 8 are connected, described air blast airduct 9 and mist case 7 are by being welded to connect.
The anoxic CO 2 enriched gas of the present patent application realizes the Apparatus and method for of the gas and vapor permeation ratio control of low nitrogen burning, described method uses above-mentioned equipment, the exhanst gas outlet of one end and boiler that the flue gas of air preheater enters smoke-box communicates, and be connected with mist case by boiler smoke backflow smoke pipe, the fresh air gas outlet of air preheater is connected with mist case by fresh air airduct, mist case is connected with the air intake vent of air blast, air blast is connected with the First air air compartment air intake vent of boiler by air blast airduct, for the First air air compartment of boiler provides gaseous mixture, smoke backflow in boiler smoke backflow smoke pipe makes the gas concentration lwevel of boiler internal higher, cause the fuel anoxycausis of boiler internal, the carbon dioxide of backflow and carbon black granules and fuel Formed, following reaction can be formed: C+CO under this ignition temperature and anoxia condition
2=2CO, 2C+O
2=2CO, the main source of boiler discharged nitrous oxides is fuel NO, the nitric oxide that the organic nitrogen both in fuel can generate fast when lower temperature combustion, accounts for the nitrogen oxide ratio of boiler waste gas discharge more than 90%, when the carbon monoxide of the very high concentration produced under the nitric oxide generated runs into anoxycausis condition, following chemical reaction can be there is under this temperature conditions: 2CO+2NO=2CO
2+ N
2, the conversion of nitric oxide gas being about to generate becomes nitrogen, thus realize removing most fuel NO in combustion, reach the emission reduction effect reducing nitrogen oxide generation, in said method, the fresh air of supplement boiler is by the preheating of air preheater, outer row's temperature of boiler smoke is reduced, and the waste heat made full use of in boiler smoke, reach the object of energy-saving and emission-reduction, in said method, described air blast extracts the mist of boiler backflow flue gas and the fresh air through air preheater preheating from mist case, deliver in the First air air compartment of boiler lower end.
The Apparatus and method for that the gas and vapor permeation ratio that anoxic CO 2 enriched gas of the present invention realizes low nitrogen burning controls, air blast extracts boiler smoke and fresh air respectively by boiler smoke backflow smoke pipe and fresh air airduct, after mixing in mist case, be sent in boiler by air blast airduct, there is redox reaction in various gas, reach the effect eliminating or significantly reduce nitrogen oxide in boiler furnace.
It should be understood that; foregoing comprises accompanying drawing; all in order to the public understands described technology contents better; but not above-mentioned technology contents is limited; in fact, all with identical or close principle, the amendment that technique scheme is carried out or improvement; to realize substantially identical technical purpose, then all within the technical scheme that the present patent application is claimed.
Claims (10)
1. the equipment that the gas and vapor permeation ratio that an anoxic CO 2 enriched gas realizes low nitrogen burning controls, it is characterized in that: comprise air preheater, mist case, air blast, boiler smoke backflow smoke pipe, fresh air airduct and air blast airduct, the exhanst gas outlet of one end and boiler that the flue gas of air preheater enters smoke-box communicates, and communicated with mist case by boiler smoke backflow smoke pipe, the fresh air gas outlet of air preheater is communicated with mist case by fresh air airduct, mist case communicates with the air intake vent of air blast, air blast is communicated with the First air air compartment air intake vent of boiler by air blast airduct, for the First air air compartment of boiler provides mist.
2. the equipment that the gas and vapor permeation ratio that anoxic CO 2 enriched gas according to claim 1 realizes low nitrogen burning controls, it is characterized in that: one end of described boiler smoke backflow smoke pipe enters smoke-box by the flue gas being welded to connect air preheater, and the other end is connected with mist case by welding.
3. the equipment that the gas and vapor permeation ratio that anoxic CO 2 enriched gas according to claim 1 realizes low nitrogen burning controls, it is characterized in that: one end of described fresh air airduct is by being welded to connect the fresh air air outlet of air preheater, and the other end is connected with mist case by welding.
4. the equipment that the gas and vapor permeation ratio that anoxic CO 2 enriched gas according to claim 1 and 2 realizes low nitrogen burning controls, is characterized in that: described boiler smoke return duct is provided with the first valve, is used for controlling the size of smoke backflow gas flow.
5. the equipment that the gas and vapor permeation ratio that the anoxic CO 2 enriched gas according to claim 1 or 3 realizes low nitrogen burning controls, it is characterized in that: described fresh air airduct is provided with the second valve, control the air capacity size of the fresh preheated air supplemented.
6. the equipment that the gas and vapor permeation ratio that anoxic CO 2 enriched gas according to claim 4 realizes low nitrogen burning controls, is characterized in that: described boiler smoke backflow smoke pipe is connected with screw by flange with the first valve.
7. the equipment that the gas and vapor permeation ratio that anoxic CO 2 enriched gas according to claim 5 realizes low nitrogen burning controls, is characterized in that: described fresh air airduct is connected with screw by flange with the second valve.
8. the equipment that the gas and vapor permeation ratio that anoxic CO 2 enriched gas according to claim 1 and 2 realizes low nitrogen burning controls, it is characterized in that: air inlet and air outlet flange and the bolt of described air blast airduct and blower fan are connected, and described air blast airduct and mist case are by being welded to connect.
9. the method that the gas and vapor permeation ratio that an anoxic CO 2 enriched gas realizes low nitrogen burning controls, it is characterized in that: described method uses the equipment of claim 1-8, the exhanst gas outlet of one end and boiler that the flue gas of air preheater enters smoke-box communicates, and be connected with mist case by boiler smoke backflow smoke pipe, the fresh air gas outlet of air preheater is communicated with mist case by fresh air airduct, mist case is connected with the air intake vent of air blast, air blast is connected with the First air air compartment air intake vent of boiler by air blast airduct, for the First air air compartment of boiler provides gaseous mixture, smoke backflow in boiler smoke backflow smoke pipe makes the gas concentration lwevel of boiler internal higher, cause the fuel anoxycausis of boiler internal, the carbon dioxide of backflow and carbon black granules and fuel Formed, following reaction can be formed: C+CO under this ignition temperature and anoxia condition
2=2CO, 2C+O
2=2CO, the main source of boiler discharged nitrous oxides is fuel NO, the nitric oxide that the organic nitrogen both in fuel can generate fast when lower temperature combustion, accounts for the nitrogen oxide ratio of boiler waste gas discharge more than 90%, when the carbon monoxide of the very high concentration produced under the nitric oxide generated runs into anoxycausis condition, following chemical reaction can be there is under this temperature conditions: 2CO+2NO=2CO
2+ N
2, the conversion of nitric oxide gas being about to generate becomes nitrogen, thus realizes removing most fuel NO in combustion, reaches the emission reduction effect reducing nitrogen oxide generation.
10. the method that the gas and vapor permeation ratio that anoxic CO 2 enriched gas according to claim 9 realizes low nitrogen burning controls, it is characterized in that: in said method, the fresh air of supplement boiler is by the preheating of air preheater, outer row's temperature of boiler smoke is reduced, and the waste heat made full use of in boiler smoke, reach the object of energy-saving and emission-reduction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410804389.5A CN104501203A (en) | 2014-12-19 | 2014-12-19 | Gas mixture ratio control apparatus and method implementing low-nitrogen combustion by oxygen-deficient CO2-rich gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410804389.5A CN104501203A (en) | 2014-12-19 | 2014-12-19 | Gas mixture ratio control apparatus and method implementing low-nitrogen combustion by oxygen-deficient CO2-rich gas |
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| CN104501203A true CN104501203A (en) | 2015-04-08 |
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| CN201410804389.5A Pending CN104501203A (en) | 2014-12-19 | 2014-12-19 | Gas mixture ratio control apparatus and method implementing low-nitrogen combustion by oxygen-deficient CO2-rich gas |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066110A (en) * | 2015-08-11 | 2015-11-18 | 中山市迦南节能环保科技有限公司 | Chain furnace composite combustion system combining coal bed combustion and biomass gasification injection combustion |
| CN105276606A (en) * | 2015-11-30 | 2016-01-27 | 深圳市山水乐环保科技有限公司 | Air distribution device and method of pure oxygen combustion system |
| CN105423753A (en) * | 2015-11-19 | 2016-03-23 | 广东工业大学 | Continuous high-temperature low-oxygen combustion aluminum melting furnace with porous spraying pipe heat exchanger |
| CN105841143A (en) * | 2016-05-25 | 2016-08-10 | 上海华之邦科技股份有限公司 | System and method for reducing NOx emissions through smoke recycling |
| CN105833682A (en) * | 2016-04-21 | 2016-08-10 | 成都华西堂环保科技有限公司 | Boiler air graded low-nitrogen combustion and denitration process |
| CN108291716A (en) * | 2015-11-19 | 2018-07-17 | 爱德华兹有限公司 | Waste gas treatment equipment and method |
| CN109489058A (en) * | 2018-11-29 | 2019-03-19 | 北京富士特锅炉有限公司 | A kind of boiler smoke reflux air blast cooling heat recycling device and its control method |
| CN109519958A (en) * | 2018-12-28 | 2019-03-26 | 启明星宇节能科技股份有限公司 | Fresh air flue gas ratio adjustment equipment for low nitrogen combustion |
| CN109579041A (en) * | 2018-11-12 | 2019-04-05 | 上海理工大学 | Low ash high calcium coal soil resistant, slagging boiler air preheater and combustion method |
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2014
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105066110A (en) * | 2015-08-11 | 2015-11-18 | 中山市迦南节能环保科技有限公司 | Chain furnace composite combustion system combining coal bed combustion and biomass gasification injection combustion |
| CN105066110B (en) * | 2015-08-11 | 2018-10-16 | 中山市迦南节能环保科技有限公司 | Chain furnace composite combustion system combining coal block layer combustion and biomass gasification jet combustion |
| CN108291716B (en) * | 2015-11-19 | 2019-11-22 | 爱德华兹有限公司 | Exhaust gas treatment equipment and methods |
| CN105423753A (en) * | 2015-11-19 | 2016-03-23 | 广东工业大学 | Continuous high-temperature low-oxygen combustion aluminum melting furnace with porous spraying pipe heat exchanger |
| CN108291716A (en) * | 2015-11-19 | 2018-07-17 | 爱德华兹有限公司 | Waste gas treatment equipment and method |
| US10767860B2 (en) | 2015-11-19 | 2020-09-08 | Edwards Limited | Effluent gas treatment apparatus and method |
| CN105276606A (en) * | 2015-11-30 | 2016-01-27 | 深圳市山水乐环保科技有限公司 | Air distribution device and method of pure oxygen combustion system |
| CN105833682A (en) * | 2016-04-21 | 2016-08-10 | 成都华西堂环保科技有限公司 | Boiler air graded low-nitrogen combustion and denitration process |
| CN105833682B (en) * | 2016-04-21 | 2018-07-27 | 成都华西堂环保科技有限公司 | A kind of boiler air classification low nitrogen burning and denitrating technique |
| CN105841143A (en) * | 2016-05-25 | 2016-08-10 | 上海华之邦科技股份有限公司 | System and method for reducing NOx emissions through smoke recycling |
| CN109579041A (en) * | 2018-11-12 | 2019-04-05 | 上海理工大学 | Low ash high calcium coal soil resistant, slagging boiler air preheater and combustion method |
| CN109489058A (en) * | 2018-11-29 | 2019-03-19 | 北京富士特锅炉有限公司 | A kind of boiler smoke reflux air blast cooling heat recycling device and its control method |
| CN109519958A (en) * | 2018-12-28 | 2019-03-26 | 启明星宇节能科技股份有限公司 | Fresh air flue gas ratio adjustment equipment for low nitrogen combustion |
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Application publication date: 20150408 |