CN110327754A - A kind of tunnel stove denitrating system - Google Patents
A kind of tunnel stove denitrating system Download PDFInfo
- Publication number
- CN110327754A CN110327754A CN201910679973.5A CN201910679973A CN110327754A CN 110327754 A CN110327754 A CN 110327754A CN 201910679973 A CN201910679973 A CN 201910679973A CN 110327754 A CN110327754 A CN 110327754A
- Authority
- CN
- China
- Prior art keywords
- pipe
- kiln body
- pipeline
- mixed
- denitrating system
- Prior art date
- 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.)
- Pending
Links
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 20
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000001257 hydrogen Substances 0.000 claims abstract description 19
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 19
- 238000005984 hydrogenation reaction Methods 0.000 claims abstract description 18
- 239000003517 fume Substances 0.000 claims abstract description 7
- 230000008676 import Effects 0.000 claims abstract description 4
- 230000003068 static effect Effects 0.000 claims abstract description 4
- 239000000779 smoke Substances 0.000 claims description 11
- 239000004088 foaming agent Substances 0.000 claims description 9
- 238000000605 extraction Methods 0.000 claims description 5
- 238000005187 foaming Methods 0.000 claims description 3
- 239000006200 vaporizer Substances 0.000 claims description 3
- 239000008400 supply water Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 1
- 230000006872 improvement Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 8
- 239000003546 flue gas Substances 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Treating Waste Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention discloses a kind of tunnel stove denitrating system, including furnace kiln body, there is blast pipe, flue, injector import in blast pipe connection furnace kiln body on furnace kiln body, furnace kiln body blast pipe side is equipped with hydrogenation plant, compressed air source, water tank, reducing agent storage tank；Hydrogenation plant is by adding hydrogen pipeline connection blast pipe；Compressed air source by aerial cooler branch pipe, air vaporizers branch pipe with hydrogenation plant pipeline and access blast pipe；Water tank supplies water, reducing agent storage tank feed, flowmeter is installed on mixed pipe line after water supply pipe is in parallel with reducing agent pipeline, with air purifier branch pipe access air vaporizers branch pipe in parallel again in the middle part of mixed pipe line, the static mixer mixed for water with reducing agent is installed on mixed pipe line；Mixed pipe line end connects broken key machine, and the key machine outlet of breaking passes through the fume high-temperature region of medium pipeline connection furnace kiln body upper end.The minimum discharge of nitrogen oxides may be implemented in the present invention, and design improvement is low in cost, practical.
Description
Technical field:
The present invention relates to furnace flue gas exhaust apparatus field more particularly to a kind of tunnel stove denitrating systems.
Background technique:
The process of denitrification is gone in combustion product gases, antipollution importance has been used as worldwide ask
It inscribes and is shrilly contemplated.The technique for comparing mainstream in the world is divided into: SCR and SNCR.Both techniques are in addition to due to SCR
Cause reaction temperature ratio SNCR low outer using catalyst, other have no too big difference, but if from construction cost and operating cost
From the point of view of two angles, the investment of SCR is at least the several times that SNCR is put into or even 10 times more than.To prevent in boiler after coal combustion
Excessive NOx pollution environment is generated, denitration process should be carried out to coal, is taken off after being divided into burning preceding denitration, combustion process denitration, burning
Nitre.
National stove carries out minimum discharge transformation within 2019.New rule boiler emission limit specific requirement: soot dust granule object
10mg/m3, sulfur dioxide 20mg/m3, nitrogen oxides 50mg/m3, stove is the equipment that present stove industry all generallys use, this
Kind of stove is unenclosed construction, and stove feeds from front, behind discharge, center is high-temperature region, causes flue gas oxygen content super in this way
It marks (18%), also, calcination process is also open type, control flue gas oxygen content is extremely important.
Currently, continuous tunnel furnace kiln air-tightness is excessively poor, flue gas oxygen content reaches 20% or so, and Chinese tradition bag-type dust takes off
The method of denitration that the system that a series of equipment such as sulphur tower, SCR, SNCR are constituted uses is single, is unable to reach current minimum discharge
It is required that.
For tunnel stove minimum discharge transformation project particularity, complete set renovation technique scheme is designed.
Summary of the invention:
It is more the object of the present invention is to provide a kind of tunnel stove denitrating system in order to make up the deficiency of prior art problem
The structurally reasonable arrangement of denitration again, it is compact-sized, the minimum discharge of nitrogen oxides may be implemented, meet national stove in 2019 and carry out
Minimum discharge transformation, design improvement is low in cost, practical.
Technical scheme is as follows:
Tunnel stove denitrating system, including furnace kiln body, furnace kiln body lower sidewall, top are respectively provided with blast pipe, flue, into
Injector import connection in air hose and furnace kiln body, which is characterized in that the furnace kiln body blast pipe side be respectively equipped with hydrogenation plant,
Compressed air source, water tank, reducing agent storage tank；
The hydrogenation plant is by adding hydrogen pipeline connection blast pipe；
The compressed air source by pipeline parallel connection aerial cooler, air vaporizers, wherein aerial cooler branch pipe,
Air vaporizers branch pipe with hydrogenation plant pipeline and access blast pipe；
The water tank is fed by the water supply water supplying pump on water supply pipe, reducing agent storage tank by feed pump, is supplied
Flowmeter, mixed pipe line middle part and the air purifier are installed on the mixed pipe line after water lines are in parallel with reducing agent pipeline
Branch pipe is in parallel again to access air vaporizers branch pipe, is equipped with the static mixing mixed for water with reducing agent on mixed pipe line
Device；
The mixed pipe line end connects broken key machine, and the key machine outlet of breaking passes through the flue gas of medium pipeline connection furnace kiln body upper end
High-temperature area.
The tunnel stove denitrating system, which is characterized in that the temperature in the fume high-temperature region of the broken kiln body
Range is at 880~1250 DEG C.
The tunnel stove denitrating system, which is characterized in that dust-extraction unit, dust-extraction unit are equipped on the flue
Flue afterwards is equipped with smoke backflow pipeline, smoke backflow pipeline and hydrogenation plant plus hydrogen pipeline connection.
The tunnel stove denitrating system, which is characterized in that described adds hydrogen pipeline, aerial cooler branch pipe, air
Vaporizer branch pipe, water supply pipe, mixed pipe line, is equipped with control valve on smoke backflow pipeline at blast pipe.
The tunnel stove denitrating system, which is characterized in that the hydrogenation plant by adding hydrogen pipeline connection blast pipe, and
And the flow of hydrogen is controlled in 40~50m/s in described plus hydrogen pipeline.
The tunnel stove denitrating system, which is characterized in that the compressed air source is connected in parallel nitrogen oxides and breaks key machine,
The nitrogen oxides breaks and medium is added in key machine, and when pressure is 0.6MPa, temperature is 220 DEG C.
The tunnel stove denitrating system, which is characterized in that the medium is softened water and foaming agent, and foaming agent is denitration
Common foaming, and the ratio of foaming agent and water is 1/10000~1.5/10000.
The tunnel stove denitrating system, which is characterized in that smoke backflow amount is 18%- with air supply volume ratio
32%.
The invention has the advantages that
1, hydrogenation plant of the invention controls opening and closing and flow by valve, before increasing burning according to real work demand
NOx reducing agent amount in air inlet improves the removal rate of nitrogen oxides in burning, reduces discharge amount；
2, backflow flue gas in smoke backflow pipeline of the present invention, on the one hand can efficiently use waste heat to enter furnace kiln body in spray
Air-flow in emitter is heated, and the amount of oxygen in compressed air on the other hand can be reduced, to improve low nitrogen burning efficiency；
3, storage reducing agent is conventional reduction agent in the market in reducing agent storage tank of the present invention, be can effectively improve burned
The reduction of nitrogen oxides in journey, reduces the discharge of nitrogen oxides in effluent；
4, the multiple structurally reasonable arrangement of denitration of the present invention, it is compact-sized, the minimum discharge of nitrogen oxides may be implemented, meet
National stove carries out minimum discharge transformation within 2019, and design improvement is low in cost, practical.
Detailed description of the invention:
Fig. 1 is the structural diagram of the present invention.
Specific embodiment:
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Referring to attached drawing 1, tunnel stove denitrating system, including furnace kiln body 1,1 lower sidewall of furnace kiln body, top be respectively provided with into
4 import connection of injector in air hose 2, flue 3, blast pipe 2 and furnace kiln body, 1 blast pipe side of furnace kiln body is respectively equipped with hydrogenation plant
5, compressed air source 6, water tank 7, reducing agent storage tank 8.
Hydrogenation plant 5 usually requires that the flow control for adding hydrogen in hydrogen pipeline 40 by adding hydrogen pipeline connection blast pipe 2
~50m/s.
Compressed air source 6 passes through pipeline parallel connection aerial cooler 9, air vaporizers 10, wherein aerial cooler branch pipe, sky
Gas vaporizer branch pipe with hydrogenation plant pipeline and access blast pipe 2.
Water tank 7 is supplied water by the water supply pump 11 on water supply pipe, and reducing agent storage tank 8 is fed by feed pump 12, is supplied
Flowmeter 13, mixed pipe line middle part and air purifier branch are installed on the mixed pipe line after water lines are in parallel with reducing agent pipeline
Pipe is in parallel again to access air vaporizers branch pipe, is equipped with the static mixer mixed for water with reducing agent on mixed pipe line
19。
Mixed pipe line end connects broken key machine 14, and key machine 14 outlet of breaking passes through the cigarette of 1 upper end of medium pipeline connection furnace kiln body
Gas high-temperature area 15；In addition, the nitrogen oxides in parallel of compressed air source 6 breaks key machine 10, and nitrogen oxides breaks in key machine 10 and is added
Medium, and start the temperature-pressure device that nitrogen oxides breaks key machine 10, when pressure reaches 0.6MPa, temperature reaches 220 DEG C；Medium
For softened water and foaming agent, foaming agent is denitration common foaming, ratio=1/10000~1.5/10000 of foaming agent and water.
The temperature range in the fume high-temperature region 15 of broken kiln body 1 is at 880~1250 DEG C.Preferably, fume high-temperature region
15 temperature range is controlled in 1000~1050 DEG C.
Dust-extraction unit 16 is installed, the flue after dust-extraction unit 16 is equipped with smoke backflow pipeline 17, and flue gas returns on flue 3
Flow tube road 17 adds hydrogen pipeline connection with hydrogenation plant 5, on the one hand can efficiently use waste heat to injector 4 in entrance furnace kiln body
Interior air-flow is heated, and the amount of oxygen in compressed air, smoke backflow amount and air supply body on the other hand can be reduced
Product ratio is according to 18%-32% ratio.
Add hydrogen pipeline, aerial cooler branch pipe, air vaporizers branch pipe, blast pipe, water supply pipe, mixed pipe line, flue gas
Control valve 18 is equipped on return line 17, each pipeline is deposited according to hydrogenation plant 5, compressed air source 6, water tank 7, reducing agent
8 place branch of storage tank name, 18 quantity of control valve of each branch road according to the actual situation depending on.
The present invention in application process, has the sensor of nitrogen oxides detection NOx component concentration by being arranged in chimney,
Sensor acquires data feedback to the controller of DCS control system, is lower than 42mg/m through detection through detection discharged nitrous oxides3。
Preferable specific embodiment of the invention is described in detail above.It should be appreciated that those skilled in the art
It according to the present invention can conceive without creative work and make many modifications and variations.Therefore, all skills in the art
Art personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be within the scope of protection determined by the claims.
Claims (9)
1. a kind of tunnel stove denitrating system, including furnace kiln body, furnace kiln body lower sidewall, top are respectively provided with blast pipe, flue,
Injector import connection in blast pipe and furnace kiln body, which is characterized in that the furnace kiln body blast pipe side is respectively equipped with plus hydrogen dress
It sets, compressed air source, water tank, reducing agent storage tank；
The hydrogenation plant is by adding hydrogen pipeline connection blast pipe；
The compressed air source passes through pipeline parallel connection aerial cooler, air vaporizers, wherein aerial cooler branch pipe, air
Vaporizer branch pipe with hydrogenation plant pipeline and access blast pipe；
The water tank is fed by the water supply water supplying pump on water supply pipe, reducing agent storage tank by feed pump, water supplying pipe
Flowmeter, mixed pipe line middle part and the air purifier branch pipe are installed on the mixed pipe line after road is in parallel with reducing agent pipeline
It is in parallel again to access air vaporizers branch pipe, the static mixer mixed for water with reducing agent is installed on mixed pipe line；
The mixed pipe line end connects broken key machine, and the key machine outlet of breaking passes through the fume high-temperature of medium pipeline connection furnace kiln body upper end
Region.
2. stove denitrating system in tunnel according to claim 1, which is characterized in that the fume high-temperature of the broken kiln body
The temperature range in region is at 880~1250 DEG C.
3. stove denitrating system in tunnel according to claim 2, which is characterized in that the fume high-temperature of the broken kiln body
The temperature range in region is at 1000~1050 DEG C.
4. stove denitrating system in tunnel according to claim 1, which is characterized in that be equipped with dedusting dress on the flue
Set, the flue after dust-extraction unit is equipped with smoke backflow pipeline, smoke backflow pipeline and hydrogenation plant plus hydrogen pipeline connection.
5. stove denitrating system in tunnel according to claim 1, which is characterized in that described adds hydrogen pipeline, air cooling
Device branch pipe, blast pipe, water supply pipe, mixed pipe line, is equipped with control valve on smoke backflow pipeline at air vaporizers branch pipe.
6. stove denitrating system in tunnel according to claim 1, which is characterized in that the hydrogenation plant is by adding hydrogen pipeline
Connection blast pipe, and the flow of hydrogen is controlled in 40~50m/s in described plus hydrogen pipeline.
7. stove denitrating system in tunnel according to claim 1, which is characterized in that the compressed air source is connected in parallel nitrogen
Oxide breaks key machine, and the nitrogen oxides breaks and medium is added in key machine, and when pressure is 0.6MPa, temperature is 220 DEG C.
8. stove denitrating system in tunnel according to claim 7, which is characterized in that the medium is softened water and foaming
Agent, foaming agent is denitration common foaming, and the ratio of foaming agent and water is 1/10000~1.5/10000.
9. stove denitrating system in tunnel according to claim 1, which is characterized in that smoke backflow amount and air supply body
Product is than being 18%-32%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910679973.5A CN110327754A (en) | 2019-07-26 | 2019-07-26 | A kind of tunnel stove denitrating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910679973.5A CN110327754A (en) | 2019-07-26 | 2019-07-26 | A kind of tunnel stove denitrating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110327754A true CN110327754A (en) | 2019-10-15 |
Family
ID=68147611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910679973.5A Pending CN110327754A (en) | 2019-07-26 | 2019-07-26 | A kind of tunnel stove denitrating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110327754A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5438269A (en) * | 1977-09-02 | 1979-03-22 | Toray Ind Inc | Treating system for exhaust gas |
| WO1989007004A1 (en) * | 1988-02-02 | 1989-08-10 | Dale Gordon Jones | Process and apparatus using two-stage boiler injection for reduction of oxides of nitrogen |
| SE9401196D0 (en) * | 1994-04-11 | 1994-04-11 | Ingvar Nilsson | Device for promoting high separation of ammonia in ammonia containing flue gas over textile barrier filter |
| CN101187475A (en) * | 2007-12-28 | 2008-05-28 | 上海电力学院 | Method for reducing elemental mercury, nitrogen oxide discharging for coal-fired boiler classified recombustion |
| JP2012120992A (en) * | 2010-12-09 | 2012-06-28 | Mitsubishi Heavy Ind Ltd | Exhaust gas denitrification apparatus |
| CN103752160A (en) * | 2014-01-28 | 2014-04-30 | 上海交通大学 | Method for realizing ultra-low emission of NOx of circulating fluidized bed boiler |
| CN105485664A (en) * | 2015-12-07 | 2016-04-13 | 山西大学 | Composite denitration method and device |
| CN105642101A (en) * | 2016-01-27 | 2016-06-08 | 西安航天源动力工程有限公司 | Flue gas recirculation and SNCR joint denitration process system |
| CN106322360A (en) * | 2016-09-12 | 2017-01-11 | 西安交通大学 | Selective non-catalytic reduction (SNCR) and flue gas recirculation coupling denitration system for chain furnace |
| JP2017131867A (en) * | 2016-01-29 | 2017-08-03 | 三菱日立パワーシステムズ株式会社 | Ammonia treatment device and ammonia treatment method |
| CN108201778A (en) * | 2018-02-09 | 2018-06-26 | 石家庄新华能源环保科技股份有限公司 | A kind of limekiln combined denitration system |
| CN108905590A (en) * | 2018-08-13 | 2018-11-30 | 中国华能集团有限公司 | A kind of denitrating system and method for station boiler low NO collaboration high temperature spray ammonia |
| CN211328841U (en) * | 2019-07-26 | 2020-08-25 | 启明星宇节能科技股份有限公司 | Tunnel furnace denitration system |
-
2019
- 2019-07-26 CN CN201910679973.5A patent/CN110327754A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5438269A (en) * | 1977-09-02 | 1979-03-22 | Toray Ind Inc | Treating system for exhaust gas |
| WO1989007004A1 (en) * | 1988-02-02 | 1989-08-10 | Dale Gordon Jones | Process and apparatus using two-stage boiler injection for reduction of oxides of nitrogen |
| SE9401196D0 (en) * | 1994-04-11 | 1994-04-11 | Ingvar Nilsson | Device for promoting high separation of ammonia in ammonia containing flue gas over textile barrier filter |
| CN101187475A (en) * | 2007-12-28 | 2008-05-28 | 上海电力学院 | Method for reducing elemental mercury, nitrogen oxide discharging for coal-fired boiler classified recombustion |
| JP2012120992A (en) * | 2010-12-09 | 2012-06-28 | Mitsubishi Heavy Ind Ltd | Exhaust gas denitrification apparatus |
| CN103752160A (en) * | 2014-01-28 | 2014-04-30 | 上海交通大学 | Method for realizing ultra-low emission of NOx of circulating fluidized bed boiler |
| CN105485664A (en) * | 2015-12-07 | 2016-04-13 | 山西大学 | Composite denitration method and device |
| CN105642101A (en) * | 2016-01-27 | 2016-06-08 | 西安航天源动力工程有限公司 | Flue gas recirculation and SNCR joint denitration process system |
| JP2017131867A (en) * | 2016-01-29 | 2017-08-03 | 三菱日立パワーシステムズ株式会社 | Ammonia treatment device and ammonia treatment method |
| CN106322360A (en) * | 2016-09-12 | 2017-01-11 | 西安交通大学 | Selective non-catalytic reduction (SNCR) and flue gas recirculation coupling denitration system for chain furnace |
| CN108201778A (en) * | 2018-02-09 | 2018-06-26 | 石家庄新华能源环保科技股份有限公司 | A kind of limekiln combined denitration system |
| CN108905590A (en) * | 2018-08-13 | 2018-11-30 | 中国华能集团有限公司 | A kind of denitrating system and method for station boiler low NO collaboration high temperature spray ammonia |
| CN211328841U (en) * | 2019-07-26 | 2020-08-25 | 启明星宇节能科技股份有限公司 | Tunnel furnace denitration system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102179171B (en) | Multi-stage themolysis coupled denitration method using front flow field uniformizing device and device thereof | |
| CN105944564A (en) | Coke oven flue gas waste heat recycling, desulfurization and denitration integrated system and method | |
| CN104190253A (en) | Coke oven flue gas SCR denitration system | |
| CN108380041A (en) | A kind of coke oven flue gas system for desulfuration and denitration and method based on activated carbon/coke | |
| CN103007743A (en) | SCR (Selective Catalytic Reduction) denitrification device for flue gas of glass kiln | |
| CN203355611U (en) | Device for removing NOX and dioxins in sintering and pelletizing flue gas through SCR (Selective Catalytic Reduction) | |
| CN105457486A (en) | Coke oven flue gas integrated treatment method | |
| CN105688625B (en) | Ammonia-containing water is used for the flue gas desulfurization and denitration method and device of flue gas temperature control | |
| CN106237821A (en) | A kind of limekiln denitrating system | |
| CN108246075B (en) | Pelletizing denitration method for flue gas | |
| CN106215664A (en) | Danger waste burning system flue gas combination method of denitration and device | |
| CN110903042A (en) | Double-hearth lime kiln with denitration equipment | |
| CN208177248U (en) | It is a kind of based on active carbon/coke coke oven flue gas system for desulfuration and denitration | |
| CN107583430A (en) | One kind sintering denitrating flue gas processing unit and method | |
| CN110523251A (en) | A kind of system for desulfuration and denitration and method of sintering flue gas circulation joint ozone pre-oxidation | |
| CN108518698A (en) | Smoke catalytic recycling device | |
| CN108295652A (en) | Carbon rotary kiln flue gas desulfurization and denitrification UTILIZATION OF VESIDUAL HEAT IN integral process and system | |
| CN209530540U (en) | A kind of denitrification apparatus of gas fired-boiler | |
| CN205386412U (en) | Boiler flue gas denitration system | |
| CN106554001A (en) | A kind of acid-making process of comprehensive utilization hydrogen sulfide waste gas and Waste Sulfuric Acid | |
| CN111121472A (en) | Sintering machine flue gas internal and external combined cycle purification and waste heat utilization system | |
| CN214389610U (en) | Low-temperature SCR (selective catalytic reduction) removal device for flue gas of sleeve lime kiln | |
| CN204865530U (en) | Spout calcium desulfurization low temperature denitrification facility in coal fired boiler flue gas stove | |
| CN204735100U (en) | Absorption system who carries out wet process oxidation denitration to flue gas of coal -fired chain boiler | |
| CN108704464A (en) | Sintering flue gas desulfurization and denitrification and flue gas whitening comprehensive treatment system and process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |