CN113599980A - Flue gas treatment system of circulating fluidized bed boiler - Google Patents
Flue gas treatment system of circulating fluidized bed boiler Download PDFInfo
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- CN113599980A CN113599980A CN202110984549.9A CN202110984549A CN113599980A CN 113599980 A CN113599980 A CN 113599980A CN 202110984549 A CN202110984549 A CN 202110984549A CN 113599980 A CN113599980 A CN 113599980A
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- flue gas
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- fluidized bed
- circulating fluidized
- spray
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 102
- 239000003546 flue gas Substances 0.000 title claims abstract description 102
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 65
- 238000005507 spraying Methods 0.000 claims abstract description 43
- 239000000428 dust Substances 0.000 claims abstract description 39
- 238000002347 injection Methods 0.000 claims abstract description 13
- 239000007924 injection Substances 0.000 claims abstract description 13
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 81
- 239000007921 spray Substances 0.000 claims description 75
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 239000000779 smoke Substances 0.000 claims description 8
- 238000000746 purification Methods 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000003517 fume Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000006722 reduction reaction Methods 0.000 description 40
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 21
- 229910001873 dinitrogen Inorganic materials 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000002956 ash Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model belongs to the technical field of the technique of boiler environmental protection and specifically relates to a flue gas processing system who relates to circulating fluidized bed boiler, it includes reduction boiler, reductant injection apparatus and dust remover, the lateral wall of reduction boiler bottom and circulating fluidized bed boiler's the pipe intercommunication of discharging fume, reductant injection apparatus are used for spraying the reductant through the top of reduction boiler to reduction boiler inside, and the dust remover communicates with the exhaust end of reduction boiler, and this application has the effect that improves flue gas processing system purification treatment ability.
Description
Technical Field
The application relates to the technical field of boiler environmental protection, in particular to a flue gas treatment system of a circulating fluidized bed boiler.
Background
The circulating fluidized bed boiler utilizes the circulating fluidized bed combustion technology to ensure that air required by combustion uniformly enters the fluidized bed through the air distribution plate at the bottom of the hearth, the proper air flow rising speed is kept in the fluidized bed, and the air flow supports most material particles to move up and down to form a boiling state, so that the mixing is very strong, and the circulating fluidized bed boiler has the advantages of good fuel adaptability, high efficiency, less pollution emission and the like.
Even so, the flue gas that circulating fluidized bed boiler discharged still need get into inside denitration purification treatment of carrying out of flue gas processing system to reduce the nitrogen oxide in the flue gas into pollution-free nitrogen gas and steam, can discharge in the atmosphere at last, maintain good ecological environment.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: at present, for the related flue gas treatment system, nitrogen oxides in the flue gas can not be completely reduced into nitrogen and water vapor, and the purification treatment capacity of the related flue gas treatment system needs to be improved.
Disclosure of Invention
In order to improve the purification treatment capacity of the flue gas treatment system, the application provides the flue gas treatment system of the circulating fluidized bed boiler.
The application provides a circulating fluidized bed boiler's flue gas processing system adopts following technical scheme:
the flue gas treatment system of the circulating fluidized bed boiler comprises a reduction boiler, a reducing agent injection device and a dust remover, wherein the side wall of the bottom of the reduction boiler is communicated with a smoke exhaust pipe of the circulating fluidized bed boiler, the reducing agent injection device is used for spraying a reducing agent into the reduction boiler through the top of the reduction boiler, and the dust remover is communicated with an exhaust end of the reduction boiler.
By adopting the technical scheme, the flue gas combusted by the circulating fluidized bed boiler enters the reduction boiler through the smoke exhaust pipe, the reducing agent injection device injects the reducing agent in an atomized state into the reduction boiler, the flue gas and the reducing agent are fully and uniformly mixed, the reducing agent and nitrogen oxide in the flue gas perform chemical reaction to generate nitrogen and water vapor, and the nitrogen and water vapor is subjected to denitration and purification treatment, so that the purification effect is achieved, and the purification treatment capacity of the flue gas treatment system can be improved; then the purified flue gas enters the interior of a dust remover for dust removal treatment, and finally is discharged into the atmosphere.
Optionally, the reducing agent injection device includes a mixing tower, a first spraying mechanism, a pressurized water pump and two sections of conveying pipes, the mixing tower is filled with a reducing agent for reducing nitrogen oxides in flue gas of the circulating fluidized bed boiler, one section of the conveying pipe communicates the mixing tower with a water inlet end of the pressurized water pump, the other section of the conveying pipe communicates a water outlet end of the pressurized water pump with the first spraying mechanism, and the first spraying mechanism is located in the reduction boiler and is used for atomizing and spraying the reducing agent into the reduction boiler.
Through adopting above-mentioned technical scheme, the reducing agent of pressure water pump in with the mixing tower is taken the mixing tower out through the conveyer pipe, in another section conveyer pipe pump sending into first spraying mechanism again, inside first spraying mechanism atomized the reducing agent and sprayed into reduction boiler, the nitrogen oxide in reducing agent and the flue gas carried out abundant contact to abundant chemical reaction, generated pollution-free nitrogen gas and steam, can improve the purification treatment ability of flue gas processing system self.
Optionally, the first spraying mechanism comprises a first spraying horizontal pipe and a plurality of first spraying nozzles, the first spraying horizontal pipe is communicated with the corresponding conveying pipe, all the first spraying nozzles are communicated with the first spraying horizontal pipe, and the nozzle openings of all the first spraying nozzles face the bottom of the reduction boiler.
Through adopting above-mentioned technical scheme, the reductant through the conveyer pipe get into the first back of violently managing inside that sprays, all first spray the mouth with reductant atomizing after spout to the flue gas, reductant and flue gas can carry out fully mixed contact, nitrogen oxide reduction into nitrogen gas and steam in the flue gas high-efficiently.
Optionally, the first horizontal spray pipe is spiral.
Through adopting above-mentioned technical scheme, violently managing to establish into the spiral with first spraying, can increase the area of contact that violently manage with first spraying to increase the installation quantity of first spraying mouth, in unit interval, can spray a larger amount of reductant to reduction boiler inside, and make reductant and flue gas contact ground abundant more and even.
Optionally, the delivery pipe that communicates booster pump and first spraying mechanism communicates there is the branch pipe, and the remaining one end intercommunication of branch pipe has the second to spray the mechanism, and the second sprays the top that the mechanism is located reduction boiler, and the second sprays the mechanism and includes that the second sprays violently pipe and a plurality of second and spray the mouth, and all second spray the mouth and all spray the bottom direction that violently manages with the second and communicate, and all second spray the mouth all towards reduction boiler.
By adopting the technical scheme, the second sprays violently pipe and all second spray nozzles and spouts the reductant atomizing back and inside reduction boiler, carries out the reduction reaction to the nitrogen oxide in the flue gas once more, makes remaining nitrogen oxide in the flue gas reduced into nitrogen gas and steam, further reduces nitrogen oxide's in the flue gas content, improves the purification treatment ability of flue gas processing system to the flue gas.
Optionally, the orientations of two adjacent second spray nozzles have an included angle, and the orientations of the second spray nozzles are distributed in a staggered manner.
Through adopting above-mentioned technical scheme, can make the reducing agent that the second spray nozzle jetted out form great coverage in the space, increase the area of contact of reducing agent and flue gas, make the nitrogen oxide in the flue gas contact the reducing agent more fully, improve the purification treatment ability of flue gas processing system to the flue gas.
Optionally, the dust separator is an ESP dust separator.
By adopting the technical scheme, the ESP dust remover has the excellent characteristics of low energy consumption and high dust removal efficiency, can remove 0.01-50 mu m of dust in flue gas by removing the dust in the flue gas by adopting the ESP dust remover, can be used for occasions with high flue gas temperature and high pressure, and is more economic and more cost-effective in investment and operation cost by using the ESP dust remover.
Optionally, the bottom of the reduction boiler is communicated with a dust exhaust valve.
Through adopting above-mentioned technical scheme, regularly open the dust exhaust valve, can conveniently empty the handling with the ashes of the flue gas after burning that the reduction boiler bottom is deposited up.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the reducing agent injection device injects the reducing agent in an atomized state into the reduction boiler, the flue gas and the reducing agent are fully and uniformly mixed, the reducing agent and nitrogen oxide in the flue gas perform chemical reaction to generate nitrogen and water vapor, and the denitration and purification treatment is performed, so that the purification effect is achieved, and the purification treatment capacity of the flue gas treatment system can be improved;
2. the first horizontal spray pipes are arranged in a spiral shape, so that the contact area between the flue gas and the first horizontal spray pipes can be increased, the installation number of the first spray nozzles can be increased, a larger amount of reducing agent can be sprayed into the reduction boiler in unit time, and the reducing agent is more fully and uniformly contacted with the flue gas;
3. the orientation of two adjacent second spray nozzles is provided with an included angle, the orientation of each second spray nozzle is distributed in a staggered manner, so that a reducing agent sprayed by the second spray nozzles can form a large coverage area in space, the contact area of the reducing agent and the flue gas is increased, nitrogen oxide in the flue gas can be contacted with the reducing agent more sufficiently, and the purification treatment capacity of the flue gas treatment system on the flue gas is improved.
Drawings
FIG. 1 is a schematic structural view of a flue gas treatment system of a circulating fluidized bed boiler according to an embodiment of the present application;
fig. 2 is a cross-sectional view embodying a first spray cross tube.
Description of reference numerals: 1. a reduction boiler; 11. a smoke inlet pipe; 12. a dust exhaust valve; 2. a reducing agent injection device; 3. a dust remover; 4. a mixing tower; 5. a first spraying mechanism; 51. a first horizontal spray pipe; 52. a first spray nozzle; 6. a delivery pipe; 7. a pressurized water pump; 8. a branch pipe; 9. a second spraying mechanism; 91. a second horizontal spray pipe; 92. and a second spray nozzle.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses circulating fluidized bed boiler's flue gas processing system, referring to fig. 1 and 2, circulating fluidized bed boiler's flue gas processing system includes reduction boiler 1, reductant injection apparatus 2 and dust remover 3. The side wall of the bottom of the reduction boiler 1 is communicated with a plurality of sections of smoke inlet pipes 11 which are positioned at the same height, and the smoke inlet pipes 11 are communicated with the smoke exhaust pipe of the circulating fluidized bed boiler. The reducing agent injection device 2 comprises a mixing tower 4, a first spraying mechanism 5, a second spraying mechanism 9, a pressurized water pump 7 and two sections of conveying pipes 6. The mixing tower 4 is filled with a reducing agent for reducing nitrogen oxides in the flue gas of the circulating fluidized bed boiler, and in the embodiment, the reducing agent is a uniformly mixed solution of ammonia, urea and water; two ends of one section of conveying pipe 6 are respectively communicated with the bottom of the side wall of the mixing tower 4 and the water inlet end of the pressurized water pump 7, and two ends of the other section of conveying pipe 6 are respectively communicated with the water outlet end of the pressurized water pump 7 and the first spraying mechanism 5; the delivery pipe 6 for communicating the pressure water pump 7 and the first spraying mechanism 5 is communicated with a branch pipe 8, the remaining end of the branch pipe 8 is communicated with a second spraying mechanism 9, and the second spraying mechanism 9 is positioned at the top in the reduction boiler 1. The dust collector 3 communicates with the exhaust end of the reduction boiler 1. The bottom of the reduction boiler 1 is communicated with a dust exhaust valve 12.
Flue gas after combustion of the circulating fluidized bed boiler enters the reduction boiler 1 through a smoke exhaust pipe, a reducing agent in a mixing tower 4 is pumped out of the mixing tower 4 through a conveying pipe 6 by a pressure water pump 7 and then is conveyed into a first spraying mechanism 5 through another section of conveying pipe 6 by a pump, the reducing agent is atomized and sprayed into the reduction boiler 1 by the first spraying mechanism 5, the reducing agent is fully contacted with nitrogen oxides in the flue gas and fully chemically reacted to generate pollution-free nitrogen and water vapor, denitration and purification treatment are carried out, the purification effect is achieved, and the purification treatment capacity of a flue gas treatment system can be improved; the second sprays violently pipe 91 and all second and sprays the mouth 92 with the reductant atomizing back and spout to reduction boiler 1 inside, carries out the reduction reaction to the nitrogen oxide in the flue gas once more, makes remaining nitrogen oxide in the flue gas reduced into nitrogen gas and steam, further reduces the content of nitrogen oxide in the flue gas, improves the purification treatment ability of flue gas processing system to the flue gas. Then the purified flue gas enters the dust remover 3 for dust removal treatment, and finally is discharged into the atmosphere. The dust exhaust valve 12 is periodically opened, so that ash generated by burning the flue gas accumulated at the bottom of the reduction boiler 1 can be conveniently emptied.
Referring to fig. 1 and 2, the first spray mechanism 5 includes a first spray cross tube 51 and a plurality of first spray nozzles 52. The first spray horizontal pipe 51 is spiral, and the first spray horizontal pipe 51 is communicated with the corresponding conveying pipe 6; all the first spray nozzles 52 are communicated with the first spray cross pipes 51, the first spray nozzles 52 are distributed at equal intervals along the axial direction of the first spray cross pipes 51, and the nozzles of all the first spray nozzles 52 face the bottom of the reduction boiler 1.
After the reducing agent enters the interior of the first spraying transverse pipe 51 through the conveying pipe 6, all the first spraying nozzles 52 atomize the reducing agent and then spray the atomized reducing agent into the flue gas, so that the reducing agent and the flue gas can be fully mixed and contacted, and the nitrogen oxides in the flue gas can be quickly and efficiently reduced into nitrogen and water vapor. The first horizontal spray pipe 51 is designed to be spiral, so that the contact area between the flue gas and the first horizontal spray pipe 51 can be increased, the installation number of the first spray nozzles 52 can be increased, a larger amount of reducing agent can be sprayed into the reduction boiler 1 in unit time, and the reducing agent is more fully and uniformly contacted with the flue gas.
Referring to fig. 1 and 2, the second spray mechanism 9 includes a second spray cross tube 91 and a plurality of second spray nozzles 92. The second horizontal spray pipe 91 is communicated with one end of the branch pipe 8 far away from the conveying pipe 6, and the second horizontal spray pipe 91 is horizontally arranged; all the second spray nozzles 92 are communicated with the second spray cross pipes 91, and the nozzles of all the second spray nozzles 92 face the bottom direction of the reduction boiler 1. The orientations of two adjacent second spray nozzles 92 have equal included angles, and the orientations of the second spray nozzles 92 are distributed in a staggered manner.
The second sprays violently pipe 91 and all second and sprays the mouth 92 with the reductant atomizing back and spout to reduction boiler 1 inside, carries out the reduction reaction to the nitrogen oxide in the flue gas once more, makes remaining nitrogen oxide in the flue gas reduced into nitrogen gas and steam, further reduces the content of nitrogen oxide in the flue gas, improves the purification treatment ability of flue gas processing system to the flue gas.
The orientation of each second spray nozzle 92 is distributed in a staggered manner, so that the reducing agent sprayed by the second spray nozzles 92 can form a large coverage area in space, the contact area of the reducing agent and the flue gas is increased, the nitrogen oxide in the flue gas can be more fully contacted with the reducing agent, and the purification treatment capacity of the flue gas treatment system on the flue gas is improved.
Referring to fig. 1, in this embodiment, the dust remover 3 is an ESP dust remover, which has the excellent characteristics of low energy consumption and high dust removal efficiency, and the ESP dust remover is used to remove dust in flue gas, so that 0.01-50 μm of dust in flue gas can be removed, and the method can be used in occasions with high flue gas temperature and high pressure, and the investment and operation cost of using the ESP dust remover are economical.
The implementation principle of the flue gas treatment system of the circulating fluidized bed boiler in the embodiment of the application is as follows: inside circulating fluidized bed boiler combustion's flue gas gets into reduction boiler 1 through the pipe of discharging fume, the reducing agent in mixing tower 4 is taken out mixing tower 4 through conveyer pipe 6 to pressure water pump 7, in another section conveyer pipe 6 pump feeding first spraying mechanism 5 is passed through again, all first spray nozzle 52 atomize the back with the reducing agent and spout in the flue gas, the reducing agent can carry out fully mixed contact with the flue gas, nitrogen oxide in the flue gas is reduced into pollution-free nitrogen gas and steam fast high-efficiently, denitration purification treatment is carried out, reach the effect of purification, can improve the purification treatment ability of flue gas processing system self.
The reducing agent flows into the second spraying horizontal pipe 91 through the branch pipe 8, the second spraying horizontal pipe 91 and all the second spraying nozzles 92 atomize the reducing agent and spray the atomized reducing agent into the reduction boiler 1, and the reducing reaction is carried out on the nitrogen oxides in the flue gas again, so that the residual nitrogen oxides in the flue gas are reduced into nitrogen and water vapor, the content of the nitrogen oxides in the flue gas is further reduced, and the purification treatment capacity of the flue gas treatment system on the flue gas is improved. Then the purified flue gas enters the dust remover 3 for dust removal treatment, and finally is discharged into the atmosphere.
The dust exhaust valve 12 is periodically opened, so that ash generated by burning the flue gas accumulated at the bottom of the reduction boiler 1 can be conveniently emptied.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a circulating fluidized bed boiler's flue gas processing system which characterized in that: the reducing device comprises a reducing boiler (1), a reducing agent injection device (2) and a dust remover (3), wherein the side wall of the bottom of the reducing boiler (1) is communicated with a smoke exhaust pipe of the circulating fluidized bed boiler, the reducing agent injection device (2) is used for spraying a reducing agent to the inside of the reducing boiler (1) through the top of the reducing boiler (1), and the dust remover (3) is communicated with an exhaust end of the reducing boiler (1).
2. The flue gas treatment system of a circulating fluidized bed boiler according to claim 1, characterized in that: reducing agent injection apparatus (2) are including mixing tower (4), first spray mechanism (5), booster pump (7) and two sections conveyer pipes (6), the filling has the reducing agent that is used for reducing the nitrogen oxide in the circulating fluidized bed boiler flue gas in mixing tower (4), wherein one section conveyer pipe (6) with mixing tower (4) and booster pump (7) the end intercommunication of intaking, another section conveyer pipe (6) with the play water end and the first spray mechanism (5) intercommunication of booster pump (7), first spray mechanism (5) are located reduction boiler (1) and are used for atomizing and spout the reducing agent to reduction boiler (1) inside.
3. The flue gas treatment system of a circulating fluidized bed boiler according to claim 2, characterized in that: the first spraying mechanism (5) comprises a first spraying transverse pipe (51) and a plurality of first spraying nozzles (52), the first spraying transverse pipe (51) is communicated with the corresponding conveying pipe (6), all the first spraying nozzles (52) are communicated with the first spraying transverse pipe (51), and the mouths of all the first spraying nozzles (52) face to the bottom of the reduction boiler (1).
4. The flue gas treatment system of a circulating fluidized bed boiler according to claim 3, characterized in that: the first horizontal spray pipe (51) is spiral.
5. The flue gas treatment system of a circulating fluidized bed boiler according to claim 2, characterized in that: the conveying pipe (6) of intercommunication pressure water pump (7) and first spray mechanism (5) is communicated with branch pipe (8), the remaining one end intercommunication of branch pipe (8) has the second to spray mechanism (9), the second sprays the top that mechanism (9) are located reduction boiler (1), the second sprays mechanism (9) and sprays violently pipe (91) and a plurality of second including the second and spray mouth (92), all second spray mouth (92) all spray violently pipe (91) with the second and communicate, the mouth of all second spray mouth (92) all towards the bottom direction of reduction boiler (1).
6. The flue gas treatment system of a circulating fluidized bed boiler according to claim 5, characterized in that: the orientation of two adjacent second spray nozzles (92) has an included angle, and the orientation of each second spray nozzle (92) is distributed in a staggered manner.
7. The flue gas treatment system of a circulating fluidized bed boiler according to claim 1, characterized in that: the dust remover (3) is an ESP dust remover.
8. The flue gas treatment system of a circulating fluidized bed boiler according to claim 1, characterized in that: the bottom of the reduction boiler (1) is communicated with a dust exhaust valve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110984549.9A CN113599980A (en) | 2021-08-25 | 2021-08-25 | Flue gas treatment system of circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110984549.9A CN113599980A (en) | 2021-08-25 | 2021-08-25 | Flue gas treatment system of circulating fluidized bed boiler |
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| CN113599980A true CN113599980A (en) | 2021-11-05 |
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| CN204735100U (en) * | 2015-04-20 | 2015-11-04 | 邱吉康 | Absorption system who carries out wet process oxidation denitration to flue gas of coal -fired chain boiler |
| CN106582225A (en) * | 2017-01-12 | 2017-04-26 | 国网河南省电力公司电力科学研究院 | SNCR-SCR combined denitration system based on demercuration and deamination modified catalyst and denitration method achieved by adopting system |
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| CN110124486A (en) * | 2019-05-27 | 2019-08-16 | 凤阳海泰科能源环境管理服务有限公司 | A kind of garbage power plant smoke NO_x Reduction by Effective dust pelletizing system and method |
| CN210699313U (en) * | 2019-08-27 | 2020-06-09 | 山西不冻泉建材有限公司 | All-round spiral desulfurizing tower is used in accelerator production |
-
2021
- 2021-08-25 CN CN202110984549.9A patent/CN113599980A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204735100U (en) * | 2015-04-20 | 2015-11-04 | 邱吉康 | Absorption system who carries out wet process oxidation denitration to flue gas of coal -fired chain boiler |
| CN106582225A (en) * | 2017-01-12 | 2017-04-26 | 国网河南省电力公司电力科学研究院 | SNCR-SCR combined denitration system based on demercuration and deamination modified catalyst and denitration method achieved by adopting system |
| CN108434964A (en) * | 2018-05-22 | 2018-08-24 | 中国华能集团清洁能源技术研究院有限公司 | A kind of matrix form injection apparatus for circulating fluidized bed boiler SNCR denitration system |
| CN110124486A (en) * | 2019-05-27 | 2019-08-16 | 凤阳海泰科能源环境管理服务有限公司 | A kind of garbage power plant smoke NO_x Reduction by Effective dust pelletizing system and method |
| CN210699313U (en) * | 2019-08-27 | 2020-06-09 | 山西不冻泉建材有限公司 | All-round spiral desulfurizing tower is used in accelerator production |
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