CN204865530U - Spout calcium desulfurization low temperature denitrification facility in coal fired boiler flue gas stove - Google Patents
Spout calcium desulfurization low temperature denitrification facility in coal fired boiler flue gas stove Download PDFInfo
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- CN204865530U CN204865530U CN201520674604.4U CN201520674604U CN204865530U CN 204865530 U CN204865530 U CN 204865530U CN 201520674604 U CN201520674604 U CN 201520674604U CN 204865530 U CN204865530 U CN 204865530U
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- flue gas
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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
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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
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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- Chimneys And Flues (AREA)
- Treating Waste Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model provides a spout calcium desulfurization low temperature denitrification facility in coal fired boiler flue gas stove, includes coal fired boiler, flue gas on -line monitoring controlling means, sack cleaner, SCR reactor, water bath formula ammonia spinning disk atomiser, fan, chimney, its characterized in that: coal fired boiler connects flue gas on -line monitoring controlling means, sack cleaner, SCR reactor, water bath formula ammonia spinning disk atomiser, fan, chimney in proper order, flue gas on -line monitoring controlling means connects the frequency conversion rotary feeder, and electronics screw scale is connected to frequency conversion rotary feeder top, and electronics screw scale connects the tripper, and calcium hydrate dry powder feed bin is connected to the tripper, and frequency conversion rotary feeder below is connected and is mixed the generator. The utility model discloses SO2's effluent concentration 40mgNm3, NOx's effluent concentration 40mgNm3, dust effluent concentration 5mgNm3 adsorbs harmful pollutants such as dioxin in the flue gas, heavy metal, makes flue gas discharge to reach standard, avoids causing the pollution to the environment.
Description
Technical field
The utility model relates to a kind of desulfuring and denitrifying apparatus of flue gas, especially relates to a kind of fire coal boiler fume furnace sorbent injection desulfurization low-temperature denitration device, belongs to environmental technology field.
Background technology
Containing sulphur in the coal dust that coal-burning boiler is used, in 1200 DEG C ~ 1500 DEG C high-temperature firing processes, the sulphur in raw material generates SO through chemical reaction
2enter flue gas, the SO of discharged from coal-fired boiler
2account for domestic SO
2a big chunk of total emission volumn, according to the analysis to fire coal boiler fume, has following features:
(1) SO in fire coal boiler fume
2change in concentration quickly and fluctuation of concentration amplitude is large;
(2) flue-gas temperature of discharged from coal-fired boiler fluctuates usually between 120 DEG C ~ 160 DEG C;
(3) dust concentration in fire coal boiler fume is substantially at 15g/Nm
3to 30g/Nm
3between change;
(4) oxygen content of flue gas discharged from coal-fired boiler changes between 5% ~ 8%;
(5) water capacity of flue gas discharged from coal-fired boiler is comparatively large, usually fluctuates between 8% ~ 10.5%.
In sum, the flue-gas temperature of coal-burning boiler is mostly between 120 ~ 160 DEG C, and residing flue gas environmental condition is relatively more severe, and oxygen content that is as higher in dust concentration, flue gas is higher, water capacity is comparatively large, heavy metal concentration is more high, fire coal boiler fume SO
2concentration of emission reach 600 ~ 800mg/Nm
3, the concentration of emission of NOx reaches 500 ~ 700mg/Nm
3, severe contamination is caused to environment.
At present, for the process of fire coal boiler fume, denitrating technique is mainly reducing agent with ammoniacal liquor, with reaction of nitrogen oxides in burner hearth; Then carry out removing SO
2gas, wherein SO
2the removal methods of gas adopts wet processing, and said method exists shortcomings:
1, denitrating technique is mainly reducing agent with ammoniacal liquor, with reaction of nitrogen oxides in burner hearth; Its shortcoming is that ammoniacal liquor and liquefied ammonia are that dangerous cargo is not easy to transport and stores; And urea liquid need be prepared at the scene, carries, dilutes, mix to be injected in burner hearth again and go, denitration efficiency is low, complex process, and cost of investment and regular maintenance are costly.
2, wet desulphurization then adopts scrubbing tower form, can produce the waste water containing the inorganic villaumite of high concentration and heavy metal, and produce secondary pollution, need be equipped with Waste Water Treatment, cost of investment is high, and operating cost is also high.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned weak point, thus provides a kind of fire coal boiler fume furnace sorbent injection desulfurization low-temperature denitration device, and furnace sorbent injection desulfurization technique is mainly with Ca (OH)
2for desulfurizing agent, with SO in burner hearth
2reaction, generates (Asia) sulphur sulphur calcium and removes, desulphurization reaction is constantly gone on fully, the SO in flue gas
2removal efficiency high; Denitrating technique, ammonia sprays in flue gas by the nozzle of spray ammonia barrier, then enters SCR reactor, and when flue gas flows through the catalyst layer of SCR reactor, catalytic reaction occurs, and NOx is optionally reduced to N
2and water; It is high that this device has desulfuration efficiency, and denitration efficiency is high, and investment operating cost is low, and reliability is high, and energy consumption is low, safeguards easily, the advantages such as floor space is little, system long service life; SO
2concentration of emission 40mg/Nm
3, the concentration of emission 40mg/Nm of NOx
3, dust emission concentration 5mg/Nm
3, be better than GB13223-2011 standard " fossil-fuel power plant atmospheric pollutant emission standard " (SO
2< 50mg/Nm
3, NOx < 100mg/Nm
3, dust emission concentration < 20mg/Nm
3), the noxious pollutant such as dioxin, heavy metal in absorption flue gas, makes flue gas qualified discharge, avoids environment.
The technical solution of the utility model is: a kind of fire coal boiler fume furnace sorbent injection desulfurization low-temperature denitration device, comprise coal-burning boiler, flue gas Online Monitoring Control device, sack cleaner, SCR reactor, water-bath type ammonia gasifier, blower fan, chimney, it is characterized in that: described coal-burning boiler is linked in sequence flue gas Online Monitoring Control device, sack cleaner, SCR reactor, water-bath type ammonia gasifier, blower fan, chimney, described flue gas Online Monitoring Control device connects frequency conversion rotary feeder, electron helical scale is connected above frequency conversion rotary feeder, electron helical scale connects discharger, discharger connects calcium hydroxide dry powder feed bin, mixture generator is connected below frequency conversion rotary feeder, mixture generator one tunnel connects high pressure roots blower fan, calcium hydroxide playpipe of separately leading up to connects calcium hydroxide jet, calcium hydroxide jet is positioned at above the sidewall of coal-burning boiler burner hearth, fire coal boiler fume outlet connects sack cleaner by entering sack cleaner pipeline, enter on sack cleaner pipeline and be provided with active carbon entrance, active carbon entrance connects mixture generator by active carbon playpipe, mixture generator one tunnel connects high pressure roots blower fan, frequency conversion rotary feeder is connected above mixture generator, frequency conversion rotary feeder connects electron helical scale, electron helical scale connects discharger, discharger connects active carbon feed bin, catalyst layer is provided with in the middle of described SCR reactor, SCR reactor top is connected with ammonia/air mixer, ammonia/air mixer one tunnel is connected with dilution ammonia blower fan, another road exports with ammonia dashpot and is connected, described water-bath type ammonia gasifier, comprise cylindrical shell, coiled heat exchanger tube, water-bath type ammonia gasifier feed tube and water-bath type ammonia gasifier escape pipe, in cylindrical shell, bottom is provided with electric heater, on the left of cylindrical shell, lower end is provided with water-bath type ammonia gasifier feed tube, on the right side of cylindrical shell, upper end is provided with water-bath type ammonia gasifier escape pipe, four groups of coiled heat exchanger tubes are evenly arranged in cylindrical shell, cylindrical shell top is provided with upper cover, cylinder body bottom is provided with low head, low head is flat underside, water-bath type ammonia gasifier escape pipe is connected with the import of ammonia dashpot.
The beneficial effects of the utility model are: the utility model provides a kind of fire coal boiler fume furnace sorbent injection desulfurization low-temperature denitration device, and furnace sorbent injection desulfurization technique is mainly with Ca (OH)
2for desulfurizing agent, with SO in burner hearth
2reaction, generates (Asia) sulphur sulphur calcium and removes, desulphurization reaction is constantly gone on fully, the SO in flue gas
2removal efficiency high; Denitrating technique, ammonia sprays in flue gas by the nozzle of spray ammonia barrier, then enters SCR reactor, and when flue gas flows through the catalyst layer of SCR reactor, catalytic reaction occurs, and NOx is optionally reduced to N
2and water; It is high that this device has desulfuration efficiency, and denitration efficiency is high, and investment operating cost is low, and reliability is high, and energy consumption is low, safeguards easily, the advantages such as floor space is little, system long service life; SO
2concentration of emission 40mg/Nm
3, the concentration of emission 40mg/Nm of NOx
3, dust emission concentration 5mg/Nm
3, be better than GB13223-2011 standard " fossil-fuel power plant atmospheric pollutant emission standard " (SO
2< 50mg/Nm
3, NOx < 100mg/Nm
3, dust emission concentration < 20mg/Nm
3), the noxious pollutant such as dioxin, heavy metal in absorption flue gas, makes flue gas qualified discharge, avoids environment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the plan structure schematic diagram of part 5 water-bath type ammonia gasifier in Fig. 1.
Fig. 1, in Fig. 2, 1. coal-burning boiler, 2. flue gas Online Monitoring Control device, 3. sack cleaner, 4.SCR reactor, 5. water-bath type ammonia gasifier, 6. calcium hydroxide dry powder feed bin, 7. discharger, 8. electron helical scale, 9. frequency conversion rotary feeder, 10. high pressure roots blower fan, 11. mixture generators, 12. calcium hydroxide playpipes, 13. calcium hydroxide jets, 14. active carbon feed bins, 15. dischargers, 16. electron helical scales, 17. frequency conversion rotary feeders, 18. high pressure roots blower fans, 19. mixture generators, 20. active carbon playpipes, 21. active carbon entrances, 22. dilution ammonia blower fans, 23. ammonias/air mixer, 24. ammonia dashpots, 25. catalyst layers, 26. blower fans, 27. chimneys, 28. enter sack cleaner pipeline, 51. water-bath type ammonia gasifier feed tubes, 52. electric heaters, 53. coiled heat exchanger tubes, 54. cylindrical shells, 55. water-bath type ammonia gasifier escape pipes, 56. upper covers, 57. low heads.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
As Fig. 1, shown in Fig. 2, the utility model is a kind of fire coal boiler fume furnace sorbent injection desulfurization low-temperature denitration device, comprise coal-burning boiler 1, flue gas Online Monitoring Control device 2, sack cleaner 3, SCR reactor 4, water-bath type ammonia gasifier 5, blower fan 26, chimney 27, it is characterized in that: described coal-burning boiler 1 is linked in sequence flue gas Online Monitoring Control device 2, sack cleaner 3, SCR reactor 4, water-bath type ammonia gasifier 5, blower fan 26, chimney 27, described flue gas Online Monitoring Control device 2 connects frequency conversion rotary feeder 9, electron helical scale 8 is connected above frequency conversion rotary feeder 9, electron helical scale 8 connects discharger 7, discharger 7 connects calcium hydroxide dry powder feed bin 6, mixture generator 11 is connected below frequency conversion rotary feeder 9, mixture generator 11 1 tunnel connects high pressure roots blower fan 10, calcium hydroxide playpipe 12 of separately leading up to connects calcium hydroxide jet 13, calcium hydroxide jet 13 is positioned at above the sidewall of coal-burning boiler 1 burner hearth, coal-burning boiler 1 exhanst gas outlet passes through to connect sack cleaner 3 into sack cleaner pipeline 28, enter on sack cleaner pipeline 28 and be provided with active carbon entrance 21, active carbon entrance 21 connects mixture generator 19 by active carbon playpipe 20, mixture generator 19 1 tunnel connects high pressure roots blower fan 18, frequency conversion rotary feeder 17 is connected above mixture generator 19, frequency conversion rotary feeder 17 connects electron helical scale 16, electron helical scale 16 connects discharger 15, discharger 15 connects active carbon feed bin 14, catalyst layer 25 is provided with in the middle of described SCR reactor 4, SCR reactor 4 top is connected with ammonia/air mixer 23, ammonia/air mixer 23 1 tunnel is connected with dilution ammonia blower fan 22, another road exports with ammonia dashpot 24 and is connected, described water-bath type ammonia gasifier 5, comprise cylindrical shell 54, coiled heat exchanger tube 53, water-bath type ammonia gasifier feed tube 51 and water-bath type ammonia gasifier escape pipe 55, in cylindrical shell 54, bottom is provided with electric heater 52, on the left of cylindrical shell 54, lower end is provided with water-bath type ammonia gasifier feed tube 51, on the right side of cylindrical shell 54, upper end is provided with water-bath type ammonia gasifier escape pipe 55, four groups of coiled heat exchanger tubes 53 are evenly arranged in cylindrical shell 54, cylindrical shell 54 top is provided with upper cover 56, low head 57 is installed bottom cylindrical shell 54, low head 57 is flat underside, water-bath type ammonia gasifier escape pipe 55 is connected with ammonia dashpot 24 import.
The course of work of the present utility model: 220t/h coal-burning boiler 1, exhaust gas volumn 440000m
3/ h, flue-gas temperature 120 ~ 160 DEG C, SO
2concentration 600 ~ 800mg/Nm
3, the concentration 500 ~ 700mg/Nm of NOx
3, dust concentration 15g/Nm
3, oxygen content is 5% ~ 8%;
The calcium hydroxide injection apparatus be made up of calcium hydroxide dry powder feed bin 6, discharger 7, electron helical scale 8, frequency conversion rotary feeder 9, high pressure roots blower fan 10, mixture generator 11, calcium hydroxide playpipe 12 etc., according to the exhaust gas volumn of coal-burning boiler 1 and the amount of generation sulfide, calculate Ca (OH)
2consumption, after electron helical scale 8 Weighing, by frequency conversion rotary feeder 9, according to operating mode, powder delivering amount is adjusted by the mode changing rotating speed, powder delivering amount sends into mixture generator 11, from the wind-force of high pressure roots blower fan 10, the powder falling into mixture generator 11 is sent into the calcium hydroxide mouth 13 that dusts by calcium hydroxide playpipe 12 to be entered in coal-burning boiler 1 burner hearth, in coal-burning boiler 1 burner hearth, spread in calcium hydroxide particle in flue gas under mutual rubbing action, constantly (Asia) sulphur sulphur calcium of calcium hydroxide particle Surface Creation is removed, make the calcium hydroxide of the granule interior constantly exposed surface that makes new advances, desulphurization reaction is constantly gone on fully, SO in flue gas
2removal efficiency high, due to SO
3, the sulphur gas such as HF, HCL compares SO
2easier and calcium hydroxide reacts, SO in coal-burning boiler 1 burner hearth
3, HF, HCL removal efficiency can reach more than 98%,
A series of chemical change is there is in above-mentioned technical process:
Ca(OH)
2+SO
2+1/2H
2O→CaSO
3.1/2H
2O+H
2O
Ca(OH)
2+SO
3+H
2O→CaSO
4.2H
2O
Ca(OH)
2+2HCL→CaCL
2.2H
2O
Ca(OH)
2+2HF→CaF
2.2H
2O
CaSO
3.1/2H
2O+1/2O
2+2/3H
2O→CaSO
4.2H
2O
Ca(OH)
2+CO
2→CaCO
3+H
2O
The injection apparatus of active carbon is made up of active carbon feed bin 14, discharger 15, electron helical scale 16, frequency conversion rotary feeder 17, high pressure roots blower fan 18, mixture generator 19, active carbon playpipe 20 etc., according to exhaust gas volumn and the generation dioxin of coal-burning boiler 1, the amount of the harmful substances such as heavy metal, the consumption of calculated activity charcoal, after electron helical scale 16 Weighing, by frequency conversion rotary feeder 17, according to operating mode, active carbon conveying capacity is adjusted by the mode changing rotating speed, active carbon sends into mixture generator 19, from the wind-force of high pressure roots blower fan 18, the active carbon falling into mixture generator 19 is sent into active carbon entrance 21 by active carbon playpipe 20 to be entered in sack cleaner pipeline 28, the active carbon sprayed into adsorbs harmful substances such as the dioxin in flue gas and heavy metals,
Denitrification process: liquefied ammonia is transported to liquid ammonia storage tank by tank car, the liquefied ammonia exported becomes ammonia after water-bath type ammonia gasifier 5, water-bath type ammonia gasifier 5, electric energy is utilized to gasify liquefied ammonia as thermal source, liquefied ammonia enters coiled heat exchanger tube 53 from water-bath type ammonia gasifier feed tube 51, gasification is completed and overheated by the coiled heat exchanger tube 53 of disappearance in warm water, the heat energy of warm water is provided by bottom electric heater 52 in cylindrical shell 54, and it is for subsequent use that final ammonia enters ammonia dashpot 24 along airflow direction from the output of water-bath type ammonia gasifier escape pipe 55; Ammonia in ammonia dashpot 24 is sent in ammonia/air mixer 23 after decompression, after mixing from the air diluting ammonia blower fan 22, sprayed in flue gas by the nozzle of spray ammonia barrier and also fully mix with it, then SCR reactor 4 is entered, when flue gas flows through the catalyst layer 25 of SCR reactor 4, catalytic reaction occurs, and NOx is optionally reduced:
4NH
3+4NO+O
2→4N
2+6H
2O
8NH
3+6NO
2→7N
2+12H
2O
In reactor, NOx is reduced to N
2and water.
As can be seen here, the utility model provides a kind of fire coal boiler fume furnace sorbent injection desulfurization low-temperature denitration device, and furnace sorbent injection desulfurization technique is mainly with Ca (OH)
2for desulfurizing agent, with SO in burner hearth
2reaction, generates (Asia) sulphur sulphur calcium and removes, desulphurization reaction is constantly gone on fully, the SO in flue gas
2removal efficiency high; Denitrating technique, ammonia sprays in flue gas by the nozzle of spray ammonia barrier, then enters SCR reactor, and when flue gas flows through the catalyst layer of SCR reactor, catalytic reaction occurs, and NOx is optionally reduced to N
2and water; It is high that this device has desulfuration efficiency, and denitration efficiency is high, and investment operating cost is low, and reliability is high, and energy consumption is low, safeguards easily, the advantages such as floor space is little, system long service life; SO
2concentration of emission 40mg/Nm
3, the concentration of emission 40mg/Nm of NOx
3, dust emission concentration 5mg/Nm
3, be better than GB13223-2011 standard " fossil-fuel power plant atmospheric pollutant emission standard " (SO
2< 50mg/Nm
3, NOx < 100mg/Nm
3, dust emission concentration < 20mg/Nm
3), the noxious pollutant such as dioxin, heavy metal in absorption flue gas, makes flue gas qualified discharge, avoids environment.
Claims (1)
1. a fire coal boiler fume furnace sorbent injection desulfurization low-temperature denitration device, comprise coal-burning boiler, flue gas Online Monitoring Control device, sack cleaner, SCR reactor, water-bath type ammonia gasifier, blower fan, chimney, it is characterized in that: described coal-burning boiler is linked in sequence flue gas Online Monitoring Control device, sack cleaner, SCR reactor, water-bath type ammonia gasifier, blower fan, chimney, described flue gas Online Monitoring Control device connects frequency conversion rotary feeder, electron helical scale is connected above frequency conversion rotary feeder, electron helical scale connects discharger, discharger connects calcium hydroxide dry powder feed bin, mixture generator is connected below frequency conversion rotary feeder, mixture generator one tunnel connects high pressure roots blower fan, calcium hydroxide playpipe of separately leading up to connects calcium hydroxide jet, calcium hydroxide jet is positioned at above the sidewall of coal-burning boiler burner hearth, fire coal boiler fume outlet connects sack cleaner by entering sack cleaner pipeline, enter on sack cleaner pipeline and be provided with active carbon entrance, active carbon entrance connects mixture generator by active carbon playpipe, mixture generator one tunnel connects high pressure roots blower fan, frequency conversion rotary feeder is connected above mixture generator, frequency conversion rotary feeder connects electron helical scale, electron helical scale connects discharger, discharger connects active carbon feed bin, catalyst layer is provided with in the middle of described SCR reactor, SCR reactor top is connected with ammonia/air mixer, ammonia/air mixer one tunnel is connected with dilution ammonia blower fan, another road exports with ammonia dashpot and is connected, described water-bath type ammonia gasifier, comprise cylindrical shell, coiled heat exchanger tube, water-bath type ammonia gasifier feed tube and water-bath type ammonia gasifier escape pipe, in cylindrical shell, bottom is provided with electric heater, on the left of cylindrical shell, lower end is provided with water-bath type ammonia gasifier feed tube, on the right side of cylindrical shell, upper end is provided with water-bath type ammonia gasifier escape pipe, four groups of coiled heat exchanger tubes are evenly arranged in cylindrical shell, cylindrical shell top is provided with upper cover, cylinder body bottom is provided with low head, low head is flat underside, water-bath type ammonia gasifier escape pipe is connected with the import of ammonia dashpot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520674604.4U CN204865530U (en) | 2015-08-29 | 2015-08-29 | Spout calcium desulfurization low temperature denitrification facility in coal fired boiler flue gas stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520674604.4U CN204865530U (en) | 2015-08-29 | 2015-08-29 | Spout calcium desulfurization low temperature denitrification facility in coal fired boiler flue gas stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204865530U true CN204865530U (en) | 2015-12-16 |
Family
ID=54809966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520674604.4U Expired - Fee Related CN204865530U (en) | 2015-08-29 | 2015-08-29 | Spout calcium desulfurization low temperature denitrification facility in coal fired boiler flue gas stove |
Country Status (1)
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| CN (1) | CN204865530U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106390729A (en) * | 2016-12-02 | 2017-02-15 | 胜利油田胜机石油装备有限公司 | Desulfurization and denitrification oilfield steam-injection boiler and method |
| CN107308808A (en) * | 2017-07-27 | 2017-11-03 | 广西农垦糖业集团红河制糖有限公司 | A kind of combustion gas furnace desulphurization system |
| CN111185083A (en) * | 2018-11-15 | 2020-05-22 | 东莞市升佳净水材料有限公司 | Novel powdery solid denitration device for flue gas of combustion furnace |
| CN113251411A (en) * | 2021-05-31 | 2021-08-13 | 国能神东煤炭集团有限责任公司 | Multi-pollutant cooperative control system and method for coal-fired industrial boiler |
-
2015
- 2015-08-29 CN CN201520674604.4U patent/CN204865530U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106390729A (en) * | 2016-12-02 | 2017-02-15 | 胜利油田胜机石油装备有限公司 | Desulfurization and denitrification oilfield steam-injection boiler and method |
| CN107308808A (en) * | 2017-07-27 | 2017-11-03 | 广西农垦糖业集团红河制糖有限公司 | A kind of combustion gas furnace desulphurization system |
| CN111185083A (en) * | 2018-11-15 | 2020-05-22 | 东莞市升佳净水材料有限公司 | Novel powdery solid denitration device for flue gas of combustion furnace |
| CN113251411A (en) * | 2021-05-31 | 2021-08-13 | 国能神东煤炭集团有限责任公司 | Multi-pollutant cooperative control system and method for coal-fired industrial boiler |
| CN113251411B (en) * | 2021-05-31 | 2023-01-03 | 国能神东煤炭集团有限责任公司 | Multi-pollutant cooperative control system and method for coal-fired industrial boiler |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20210829 |
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| CF01 | Termination of patent right due to non-payment of annual fee |