CN106168376A - A kind of twin furnace coal dust gasification low nitrogen burning Industrial Boiler - Google Patents
A kind of twin furnace coal dust gasification low nitrogen burning Industrial Boiler Download PDFInfo
- Publication number
- CN106168376A CN106168376A CN201610745593.3A CN201610745593A CN106168376A CN 106168376 A CN106168376 A CN 106168376A CN 201610745593 A CN201610745593 A CN 201610745593A CN 106168376 A CN106168376 A CN 106168376A
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- furnace
- coal dust
- furnace chamber
- air
- main
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
- F23C5/08—Disposition of burners
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C6/00—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion
- F23C6/04—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
- F23C7/002—Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
- F23C7/02—Disposition of air supply not passing through burner
- F23C7/06—Disposition of air supply not passing through burner for heating the incoming air
- F23C7/08—Disposition of air supply not passing through burner for heating the incoming air indirectly by a secondary fluid other than the combustion products
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
- F23C9/003—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for pulverulent fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
- F23C9/06—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for completing combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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
Abstract
The invention discloses a kind of twin furnace coal dust gasification low nitrogen burning Industrial Boiler, including main furnace chamber, burner, secondary-furnace, back-end ductwork, economizer, air preheater；Main furnace chamber upper part parallel interval is provided with organizes secondary air duct more, and main furnace chamber and secondary-furnace lower part are provided with burnout degree air outlet, back-end ductwork be disposed with stove along smoke movement direction in convective region and SCR denitration district.The present invention uses double-furnace structure, coal dust firing is made to have sufficient gasification space and after-flame space, coal dust gasification combustion technology makes main furnace chamber Temperature Distribution more uniform, localized high temperature regions is avoided to produce, using by staged air distribution means simultaneously, reduce the discharge of NOx, size of burner hearth also passes through reasonably selection simultaneously, a part of unburnt CO and coal dust are mainly burnt by secondary-furnace again, improve the burn-off rate of coal dust.
Description
Technical field
The invention belongs to boiler plant technical field, be specifically related to a kind of twin furnace coal dust gasification low nitrogen burning industry pot
Stove.
Background technology
China is a developing country with coal as main energy sources, and coal resources account for China's production of energy and total quantity consumed
About 75%.Coal in combustion, can produce substantial amounts of pollutant, wherein nitrogen oxides (NOX) very big to environmental hazard,
Nitrogen oxides is except forming Acid rain damages ecological environment, moreover it is possible to form photochemical fog harm human health.Coal high-temp combustion
It is NOXOne of main source, and therefore China's boiler main to reduce coal-burning boiler NO based on fire coalXDischarge have important
Meaning.
, polluting for administering the severe air such as haze, boiler smoke discharge index is had higher requirement by country meanwhile；
Energy efficiency indexes to boiler is also required to be greatly improved simultaneously, and existing rule of management (TSG0002) specifies, III class bituminous coal,
More than 20t/h grate furnace energy efficiency indexes: boiler thermal output desired value 88, boiler thermal output limit value 82；And NOx emission cigarette
Gas index, in all parts of the country requirement is differed, from tens milligrams every cubic metre to 200mg/m3；Existing conventional boiler also exists thermal effect
Rate is not enough, and the existence of fume emission is polluted, problem the most up to standard, and the boiler with more preferable environmental-protecting performance will have the most wide
Development prospect.
Summary of the invention
In order to overcome existing boiler plant NOx emission deficiency the most up to standard, the present invention provides a kind of twin furnace coal dust gas
Changing low nitrogen burning Industrial Boiler, this boiler uses double-furnace structure, and by staged air distribution means, makes a part of coal dust at height
The oxygen debt environment gasified of temperature generates a large amount of CO rather than directly generates CO2, relatively generate CO owing to combustion process generating CO2Process
Thermal discharge little, so burner hearth is unlikely to produce the highest phenomenon of local temperature, so can be effectively reduced NOx and generate.
A part of NOx can be reduced by the CO on the other hand generated, and turn, this reduces the discharge of a part of NOx.The most reasonably burner hearth
Size also makes in-furnace temperature distribution more uniform, greatly reduces the NOx generated because of localized hyperthermia.The additionally setting of secondary-furnace
CO unburnt in main furnace chamber and part coal dust can be burnt again, improve the burn-off rate of coal dust.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of twin furnace coal dust gasification low nitrogen burning Industrial Boiler, including vertically-mounted main furnace chamber, main furnace chamber is provided with burning
Device, main furnace chamber rear portion close installation has secondary-furnace, secondary-furnace rear portion close installation to have back-end ductwork；The secondary stove of main furnace chamber lower end connection
Thorax lower end, connection back-end ductwork upper end, secondary-furnace upper end, back-end ductwork lower end connection economizer, economizer upper end is provided with air
Preheater；Described main furnace chamber upper part parallel interval is provided with organizes secondary air duct more, described main furnace chamber and secondary-furnace bottom
Point be provided with burnout degree air outlet, described back-end ductwork be disposed with stove along smoke movement direction in convective region and SCR
Denitration region；Described main furnace chamber and secondary-furnace surrounding attachment fin panel casing；The air outlet of described air preheater leads to respectively
Piping connects burner, secondary air duct and burnout degree air outlet.Fire coal is lighted the most in the burner, enters main stove afterwards
Thorax, supplies air by air channel to main furnace chamber, by staged air distribution means, makes a part of coal dust gas under the oxygen debt environment of high temperature
Generating a large amount of CO, this process liberated heat is relatively small, will not produce the situation that local temperature is too high, effectively in main furnace chamber
The discharge decreasing NOx, and a part of NOx reduction can decrease again the discharge of a part of NOx by CO.CO and uncombusted
Coal dust entered in secondary-furnace by the lower end of main furnace chamber, again burn after mixing with the burnout degree filled into, improve coal dust combustion
Rate to the greatest extent.Flue gas enters into back-end ductwork from the upper end of secondary-furnace afterwards, and in the internal stove arranged of back-end ductwork, convective region is the most right
Water heats, and flue gas carries out denitration through SCR denitration district afterwards, it is to avoid the smoke pollution air containing nitre, and flue gas passes through afterwards
Economizer and air preheater are finally discharged.Main furnace chamber, secondary-furnace and back-end ductwork composition S type three backhaul exhaust gases passes, S type cigarette
Gas passage can effectively improve the flow distance of flue gas, increases coal dust burning time in stove, improves efficiency of combustion.And energy
Rational choice velocity of flue gas, dust stratification is few, and converting heat efficiency is high.
Preferably, described main furnace chamber upper part is arranged at intervals with four groups of secondary air ducts being parallel to each other around main furnace chamber,
Often group secondary air duct includes cincture main furnace chamber and two the secondary air duct blast pipes arranged at same plane, each secondary air duct
An air inlet and four spouts, the circle of contact form that the air-flow of spout ejection is formed it is provided with the angle of 0 ~ 15 degree on blast pipe
It is blown into main furnace chamber；The intake of four groups of described secondary air ducts accounts for and enters the 20 ~ 35% of boiler total blast volume.Utilize staged air distribution hands
Section so that the coal dust in this region gas under the oxygen debt environment of high temperature generates a large amount of CO, reduces the discharge of NOx.
Preferably, four spouts of each secondary air duct blast pipe are respectively arranged at the surrounding of the burner of correspondence, each
Four spouts of secondary air duct blast pipe are sent to inside main furnace chamber with circle of contact form, make coal dust and air be sufficiently mixed uniformly,
Improve the burn-off rate of coal dust.
Preferably, described economizer is provided with two-stage, including the one-level economizer and two arranged along smoke movement direction
Level economizer；One-level economizer lower end is provided with backwater import, and the outlet of two grades of economizer upper ends is by pipeline communication stove
Convective region and fin panel casing.Arrange the heat that flue gas contains by two-stage economizer again to absorb, reduce flue gas
Temperature, improves the conversion ratio of heat.
Preferably, described burnout degree is sent into by circulating fan, and the air quantity of feeding accounts for and enters the 5 ~ 10% of boiler total blast volume,
CO and unburnt coal dust are burnt in secondary-furnace again, improves the burn-off rate of coal dust.
Preferably, the intake of described burner accounts for 60 ~ 80% into boiler total blast volume, makes coal dust sufficiently burn.
The invention have the advantage that employing double-furnace structure, make coal dust firing have sufficient gasification space and after-flame space, coal
Powder gasification, and combustion technology makes main furnace chamber Temperature Distribution more uniform, it is to avoid localized high temperature regions produces, and passes through staged air distribution
Means, make a part of coal dust generate a large amount of CO in high temperature oxygen debt environment gasified, and it is the highest that burner hearth is unlikely to produce local temperature
Phenomenon, so can be effectively reduced NOx and generate, and a part of NOx can be reduced that this reduces again by the CO on the other hand generated
The discharge of a part of NOx, can effectively reduce NOx and generate.Size of burner hearth also passes through reasonably selection simultaneously, and secondary-furnace is main
A part of unburnt CO and coal dust are burnt again, improves the burn-off rate of coal dust.
Accompanying drawing explanation
Fig. 1 is the front view of the present invention；
Fig. 2 is the structural representation of the main furnace chamber of the present invention, secondary-furnace and back-end ductwork；
Fig. 3 is the sectional view in A-A direction in Fig. 2；
Fig. 4 is the structural representation of economizer and air preheater.
Symbol description in figure: 1, main furnace chamber；2, burner；3, secondary-furnace；4, back-end ductwork；5, air preheater；6, combustion
Wind air outlet to the greatest extent；7, convective region in stove；8, SCR denitration district；9, fin panel casing；10, secondary air duct blast pipe；11, air inlet；
12, spout；13, one-level economizer；14, two grades of economizers；15, backwater import.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated:
As depicted in figs. 1 and 2, the present invention designs multiple hearth structure, and including vertically-mounted main furnace chamber 1, main furnace chamber 1 is provided with combustion
Burner 2, main furnace chamber 1 rear portion close installation has secondary-furnace 3, secondary-furnace 3 rear portion close installation to have back-end ductwork 4.
The present invention forms S type three backhaul exhaust gases passes, main furnace chamber 1 time to make main furnace chamber 1, secondary-furnace 3 and back-end ductwork 4
End connection secondary-furnace 3 lower end, connection back-end ductwork 4 upper end, secondary-furnace 3 upper end, back-end ductwork 4 lower end connection economizer, economizer
Upper end is provided with air preheater 5, and S type exhaust gases passes can effectively improve the flow distance of flue gas, increases coal dust in stove
Burning time, improve efficiency of combustion.
The present invention is in order to use staged air distribution technology, and described main furnace chamber 1 upper part parallel interval is provided with organizes secondary more
Air channel, described main furnace chamber 1 and secondary-furnace 3 lower part are provided with burnout degree air outlet 6, inside main furnace chamber 1, make a part
Coal dust gas under the oxygen debt environment of high temperature generates a large amount of CO, it is to avoid the situation that main furnace chamber 1 local temperature is too high, is effectively reduced
The discharge of NOx, and a part of NOx reduction can turn, this reduces the discharge of a part of NOx by CO.Inside secondary-furnace 3, CO
Again burn after mixing with the burnout degree filled into unburnt coal dust, improve the burn-off rate of coal dust.Described back-end ductwork 4 edge
Smoke movement direction is disposed with convective region 7 in stove, improves the service efficiency of heat further, arranges SCR denitration district 8, right
Flue gas carries out denitration process, it is to avoid pollute environment.
Described main furnace chamber 1 and secondary-furnace 3 surrounding attachment fin panel casing 9, the air outlet of described air preheater 5 divides
Tong Guo not connect burner 2, secondary air duct and burnout degree air outlet 6 by pipeline.
As it is shown on figure 3, in order to utilize staged air distribution technological means so that the coal dust in this region is in the high temperature oxygen debt environment therapeutic method to keep the adverse QI flowing downwards
Body generates a large amount of CO, reduces the discharge of NOx, described main furnace chamber 1 upper part around main furnace chamber 1 be arranged at intervals with four groups the most flat
The secondary air duct of row, often group secondary air duct includes cincture main furnace chamber 1 and two the secondary air duct air intakes arranged at same plane
Pipe 10, each secondary air duct blast pipe 10 is provided with an air inlet 11 and four spouts 12, and the air-flow of spout 12 ejection is with 0
The circle of contact form that the angle of ~ 15 degree is formed is blown into main furnace chamber 1；The intake of four groups of described secondary air ducts accounts for the entrance total wind of boiler
The 20% of amount.
As it is shown on figure 3, be sent to main with circle of contact form in order to reach four spouts 12 of each secondary air duct blast pipe 10
Burner hearth 1 is internal, makes coal dust and air be sufficiently mixed uniformly, improves the burn-off rate of coal dust, the four of each secondary air duct blast pipe 10
Individual spout 12 is respectively arranged at the surrounding of the burner 2 of correspondence.
As shown in Figure 4, in order to the heat containing flue gas absorbs again, reduce the temperature of flue gas, improve heat
The conversion ratio of amount, described economizer is provided with two-stage, including the one-level economizer 13 arranged along smoke movement direction and two grades
Economizer 14；One-level economizer 13 lower end is provided with backwater import 15, and the outlet of two grades of economizer 14 upper ends is by pipeline even
Convective region 7 and fin panel casing 9 in logical stove.
Described burnout degree is sent into by circulating fan, and the air quantity of feeding accounts for and enters the 10% of boiler total blast volume, described burning
The intake of device 2 accounts for 70% into boiler total blast volume.
It is last that it is noted that obviously above-described embodiment is only for clearly demonstrating example of the present invention, and also
The non-restriction to embodiment.For those of ordinary skill in the field, can also do on the basis of the above description
Go out change or the variation of other multi-form.Here without also cannot all of embodiment be given exhaustive.And thus drawn
What Shen went out obviously changes or changes among still in protection scope of the present invention.
Claims (6)
1. a twin furnace coal dust gasification low nitrogen burning Industrial Boiler, it is characterised in that include vertically-mounted main furnace chamber, main stove
Thorax is provided with burner, and main furnace chamber rear portion close installation has secondary-furnace, secondary-furnace rear portion close installation to have back-end ductwork；Main furnace chamber
Connection secondary-furnace lower end, lower end, connection back-end ductwork upper end, secondary-furnace upper end, back-end ductwork lower end connection economizer, on economizer
End is provided with air preheater；Described main furnace chamber upper part parallel interval is provided with organizes secondary air duct more, described main furnace chamber
Being provided with burnout degree air outlet with secondary-furnace lower part, described back-end ductwork is disposed with in stove along smoke movement direction
Convective region and SCR denitration district；Described main furnace chamber and secondary-furnace surrounding attachment fin panel casing；Going out of described air preheater
Air port connects burner, secondary air duct and burnout degree air outlet by pipeline respectively.
2. a kind of twin furnace coal dust gasification low nitrogen burning Industrial Boiler as claimed in claim 1, it is characterised in that described master
Upper furnace divides cincture main furnace chamber to be arranged at intervals with four groups of secondary air ducts being parallel to each other, and often group secondary air duct includes around main stove
Thorax and two the secondary air duct blast pipes arranged at same plane, each secondary air duct blast pipe is provided with an air inlet
With four spouts, the circle of contact form that the air-flow of spout ejection is formed with the angle of 0 ~ 15 degree is blown into main furnace chamber；Described four group two
The intake in secondary air channel accounts for and enters the 20 ~ 35% of boiler total blast volume.
3. a kind of twin furnace coal dust gasification low nitrogen burning Industrial Boiler as claimed in claim 2, it is characterised in that each secondary
Four spouts of air channel blast pipe are respectively arranged at the surrounding of the burner of correspondence.
4. a kind of twin furnace coal dust gasification low nitrogen burning Industrial Boiler as claimed in claim 3, it is characterised in that described province
Coal device is provided with two-stage, including the one-level economizer arranged along smoke movement direction and two grades of economizers；One-level economizer lower end
Being provided with backwater import, the outlet of two grades of economizer upper ends is by convective region and fin panel casing in pipeline communication stove.
5. a kind of twin furnace coal dust gasification low nitrogen burning Industrial Boiler as claimed in claim 4, it is characterised in that described combustion
Wind to the greatest extent is sent into by circulating fan, and the air quantity of feeding accounts for and enters the 5 ~ 10% of boiler total blast volume.
6. a kind of twin furnace coal dust gasification low nitrogen burning Industrial Boiler as claimed in claim 5, it is characterised in that described combustion
The intake of burner accounts for 60 ~ 80% into boiler total blast volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610745593.3A CN106168376B (en) | 2016-08-29 | 2016-08-29 | A kind of twin furnace coal dust gasification low nitrogen burning Industrial Boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610745593.3A CN106168376B (en) | 2016-08-29 | 2016-08-29 | A kind of twin furnace coal dust gasification low nitrogen burning Industrial Boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106168376A true CN106168376A (en) | 2016-11-30 |
| CN106168376B CN106168376B (en) | 2019-01-04 |
Family
ID=57376848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610745593.3A Active CN106168376B (en) | 2016-08-29 | 2016-08-29 | A kind of twin furnace coal dust gasification low nitrogen burning Industrial Boiler |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152672A (en) * | 2017-05-05 | 2017-09-12 | 张家港格林沙洲锅炉有限公司 | Low NOXDouble drum gas fired-boilers |
| CN107314367A (en) * | 2017-07-25 | 2017-11-03 | 无锡华光锅炉股份有限公司 | Pulverized-coal fired boiler arrangement structure |
| CN110645567A (en) * | 2019-10-29 | 2020-01-03 | 辽宁绿源能源环保科技集团有限责任公司 | Pulverized coal boiler structure and pulverized coal combustion method |
| CN113819455A (en) * | 2021-07-22 | 2021-12-21 | 华能巢湖发电有限责任公司 | Method and equipment for reducing NOx of boiler in multi-stage mode |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6069410A (en) * | 1983-08-25 | 1985-04-20 | Mitsubishi Heavy Ind Ltd | Coal burning combined plant |
| CN105114944A (en) * | 2015-09-17 | 2015-12-02 | 西安西热锅炉环保工程有限公司 | Air staged-combustion vertical and horizontal combined arrangement type over fire air system for tangential boiler |
| CN105485894A (en) * | 2015-12-23 | 2016-04-13 | 杭州燃油锅炉有限公司 | Pulverized coal type water heating boiler |
| CN205403139U (en) * | 2016-03-14 | 2016-07-27 | 天津宝成机械制造股份有限公司 | Low nitrogen buggy boiler |
| CN205919314U (en) * | 2016-08-29 | 2017-02-01 | 营口绿源锅炉有限责任公司 | Double -furnace thorax coal powder gasification low -nitrogen combustion industrial boiler |
-
2016
- 2016-08-29 CN CN201610745593.3A patent/CN106168376B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6069410A (en) * | 1983-08-25 | 1985-04-20 | Mitsubishi Heavy Ind Ltd | Coal burning combined plant |
| CN105114944A (en) * | 2015-09-17 | 2015-12-02 | 西安西热锅炉环保工程有限公司 | Air staged-combustion vertical and horizontal combined arrangement type over fire air system for tangential boiler |
| CN105485894A (en) * | 2015-12-23 | 2016-04-13 | 杭州燃油锅炉有限公司 | Pulverized coal type water heating boiler |
| CN205403139U (en) * | 2016-03-14 | 2016-07-27 | 天津宝成机械制造股份有限公司 | Low nitrogen buggy boiler |
| CN205919314U (en) * | 2016-08-29 | 2017-02-01 | 营口绿源锅炉有限责任公司 | Double -furnace thorax coal powder gasification low -nitrogen combustion industrial boiler |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152672A (en) * | 2017-05-05 | 2017-09-12 | 张家港格林沙洲锅炉有限公司 | Low NOXDouble drum gas fired-boilers |
| CN107314367A (en) * | 2017-07-25 | 2017-11-03 | 无锡华光锅炉股份有限公司 | Pulverized-coal fired boiler arrangement structure |
| CN110645567A (en) * | 2019-10-29 | 2020-01-03 | 辽宁绿源能源环保科技集团有限责任公司 | Pulverized coal boiler structure and pulverized coal combustion method |
| CN113819455A (en) * | 2021-07-22 | 2021-12-21 | 华能巢湖发电有限责任公司 | Method and equipment for reducing NOx of boiler in multi-stage mode |
| CN113819455B (en) * | 2021-07-22 | 2024-03-08 | 华能巢湖发电有限责任公司 | Method and equipment for reducing boiler NOx in multiple sections |
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| Publication number | Publication date |
|---|---|
| CN106168376B (en) | 2019-01-04 |
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Address after: 115000 No.121 Xinlian street, Yingkou District, Yingkou (Liaoning) pilot Free Trade Zone, Yingkou City, Liaoning Province Patentee after: Liaoning Lvyuan Energy Environmental Protection Technology Group Co.,Ltd. Address before: 115000, No. 3, iron and steel, Yingkou District, Liaoning, China Patentee before: YINGKOU LVYUAN BOILER Co.,Ltd. |