CN203489717U - Novel high-efficiency energy-saving flue gas denitration device - Google Patents
Novel high-efficiency energy-saving flue gas denitration device Download PDFInfo
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- CN203489717U CN203489717U CN201320481978.5U CN201320481978U CN203489717U CN 203489717 U CN203489717 U CN 203489717U CN 201320481978 U CN201320481978 U CN 201320481978U CN 203489717 U CN203489717 U CN 203489717U
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- Prior art keywords
- flue gas
- efficiency
- novel high
- energy
- saving equipment
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 239000003546 flue gas Substances 0.000 title claims abstract description 46
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 68
- 239000007921 spray Substances 0.000 claims abstract description 47
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 34
- 239000004568 cement Substances 0.000 claims abstract description 20
- 239000000428 dust Substances 0.000 claims abstract description 15
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 45
- 230000003750 conditioning effect Effects 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 239000003054 catalyst Substances 0.000 claims description 7
- 230000005684 electric field Effects 0.000 claims description 7
- 230000009286 beneficial effect Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000000354 decomposition reaction Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract 3
- 239000007924 injection Substances 0.000 abstract 3
- 238000012913 prioritisation Methods 0.000 description 9
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 206010001557 Albinism Diseases 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000036642 wellbeing Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model discloses a novel high-efficiency energy-saving flue gas denitration device. The device comprises a cement decomposition kiln, a preheating boiler, an ammonia injection pipe, a humidification tower, a water-wash atomized spray pipe, a filter screen, a dust remover, a SCR reactor, an exhaust chimney, and pipelines. The cement decomposition kiln is disposed at the left end of the device, and the ammonia injection pipe is arranged over the cement decomposition kiln. The preheating boiler is disposed over the ammonia injection pipe, which is connected to the humidification tower. The water-wash atomized spray pipe is disposed inside the humidification tower, and the filter screen is connected to the lower part of the humidification tower. The dust remover is connected to the outgoing end of the filter screen, and the SCR reactor is arranged at the gas outlet end of the dust remover. The exhaust chimney is connected to the gas outlet end of the SCR reactor. The device is simple in structure and easy to operate, improves the denitration efficiency, and successfully solves the problems that denitration devices in the prior art comprise complicated equipment, occupy large areas and are high in cost of investment and operation.
Description
Technical field
The utility model belongs to gas denitrifying technology field, relates in particular to a kind of novel high-efficiency and energy-saving equipment for denitrifying flue gas.
Background technology
China's energy be take fire coal as main, in flue gas, contain a large amount of sulfur dioxide and nitrogen oxide, directly discharge meeting causes serious pollution to atmosphere, affect the healthy of society, therefore control the pollution of sulfur dioxide and nitrogen oxide, China and world today's problem demanding prompt solution, protection of the environment and the urgent task promoting the well-being of mankind, at present, the equipment overwhelming majority for flue gas desulfurization and denitrification is independent exploitation, form technical system and technological process separately, but, existing denitration equipment, not only whole flue gas purifying equipment is complicated, floor space is large, input and operating cost are high, because directly adopting ammonia spirit, it absorbs the nitrogen oxide in flue gas, not only make the resistance increment of whole desulphurization denitration equipment, and because the nitrogen oxide in flue gas more than 90% is nitric oxide, and nitric oxide is very difficult water-soluble, adopting simple spray to wash dark method is difficult to nitric oxide to absorb, therefore denitration effect is poor.
The equipment that exists in existing out of stock device is complicated, floor space is large, input and operating cost high.
Utility model content
The purpose of this utility model is to provide a kind of novel high-efficiency and energy-saving equipment for denitrifying flue gas, is intended to solve that the equipment that exists in existing out of stock device is complicated, floor space is large, input and the high problem of operating cost.
The utility model is to realize like this, a novel high-efficiency and energy-saving equipment for denitrifying flue gas, this novel high-efficiency and energy-saving equipment for denitrifying flue gas comprises: cement decomposes kiln, preboiler, spray ammonia pipe, conditioning Tower, water Xian atomizing spray pipe, screen pack, deduster, SCR reactor, exhaust chimney, pipeline;
Cement decomposes the left end that kiln is arranged on novel high-efficiency and energy-saving equipment for denitrifying flue gas, the top that cement decomposes kiln arranges spray ammonia pipe, the top of spray ammonia pipe is provided with preboiler, preboiler connects conditioning Tower, in conditioning Tower, be provided with water Xian atomizing spray pipe, the bottom of conditioning Tower connects screen pack, and the end that goes out of screen pack connects deduster, the outlet side of deduster is provided with SCR reactor, and the outlet side of SCR reactor connects exhaust chimney.
Further, the top of cement decomposition kiln connects spray ammonia pipe by pipeline.
Further, preboiler connects conditioning Tower by pipeline.
Further, the bottom of conditioning Tower connects screen pack by pipeline.
Further, the end that goes out of screen pack connects deduster by pipeline.
Further, the outlet side of SCR reactor connects exhaust chimney by pipeline.
Further, in spray ammonia pipe, be provided with and be beneficial to the catalyst that the nitrogen oxide in acceleration flue gas fully reacts with ammonia.
Further, in water Xian atomizing spray pipe, be provided with three layers, every layer is provided with 6 water Xian atomizing spray pipes.
Further, in deduster, be provided with the dedusting electric field of the efficiency of dust collection that improves fine dust.
Further, SCR reactor adopts honeycomb fashion reaction device.
The novel high-efficiency and energy-saving equipment for denitrifying flue gas that the utility model provides, arranges catalyst in spray ammonia pipe, and the nitrogen oxide that is conducive to accelerate in flue gas fully reacts with ammonia, and flue gas is carried out to denitration; Water Xian atomizing spray pipe is provided with three layers, every layer is provided with 6 water Xian atomizing spray pipes, being provided with of hierarchy is beneficial in conditioning Tower better to mist water Xian atomization, more being conducive to that flue gas is carried out to further spray processes, can effectively stop the escape of ammonia, prevent flue gas albinism and flue gas with water, etching apparatus; In deduster, be provided with dedusting electric field, make most of dust deposit in dedusting electric field, thereby can improve the efficiency of dust collection of fine dust; SCR reactor adopts honeycomb fashion reaction device, makes the nitrogen oxide not being reduced, on the surface of SCR catalyst, selective catalytic reduction reaction occur, and the most nitrogen oxide that are conducive in flue gas are reduced to N, thereby can improve denitration rate.In addition, the utility model is simple in structure, easy to operate, has improved the efficiency of denitration, preferably resolves that the equipment that exists in existing out of stock device is complicated, floor space is large, input and the high problem of operating cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the novel high-efficiency and energy-saving equipment for denitrifying flue gas that provides of the utility model embodiment;
In figure: 1, cement decomposes kiln; 2, preboiler; 3, spray ammonia pipe; 4, conditioning Tower; 5, water Xian atomizing spray pipe; 6, screen pack; 7, deduster; 8, SCR reactor; 9, exhaust chimney; 10, pipeline.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 shows the novel high-efficiency and energy-saving equipment for denitrifying flue gas structure that the utility model embodiment provides.For convenience of explanation, only show the part relevant to the utility model.
The novel high-efficiency and energy-saving equipment for denitrifying flue gas of the utility model embodiment, this novel high-efficiency and energy-saving equipment for denitrifying flue gas comprises: cement decomposes kiln, preboiler, spray ammonia pipe, conditioning Tower, water Xian atomizing spray pipe, screen pack, deduster, SCR reactor, exhaust chimney, pipeline;
Cement decomposes the left end that kiln is arranged on novel high-efficiency and energy-saving equipment for denitrifying flue gas, the top that cement decomposes kiln arranges spray ammonia pipe, the top of spray ammonia pipe is provided with preboiler, preboiler connects conditioning Tower, in conditioning Tower, be provided with water Xian atomizing spray pipe, the bottom of conditioning Tower connects screen pack, and the end that goes out of screen pack connects deduster, the outlet side of deduster is provided with SCR reactor, and the outlet side of SCR reactor connects exhaust chimney.
As a prioritization scheme of the utility model embodiment, the top that cement decomposes kiln connects spray ammonia pipe by pipeline.
As a prioritization scheme of the utility model embodiment, preboiler connects conditioning Tower by pipeline.
As a prioritization scheme of the utility model embodiment, the bottom of conditioning Tower connects screen pack by pipeline.
As a prioritization scheme of the utility model embodiment, the end that goes out of screen pack connects deduster by pipeline.
As a prioritization scheme of the utility model embodiment, the outlet side of SCR reactor connects exhaust chimney by pipeline.
As a prioritization scheme of the utility model embodiment, in spray ammonia pipe, be provided with to be beneficial to and accelerate the catalyst that the nitrogen oxide in flue gas fully reacts with ammonia.
As a prioritization scheme of the utility model embodiment, in water Xian atomizing spray pipe, be provided with three layers, every layer is provided with 6 water Xian atomizing spray pipes.
As a prioritization scheme of the utility model embodiment, in deduster, be provided with the dedusting electric field of the efficiency of dust collection that improves fine dust.
As a prioritization scheme of the utility model embodiment, SCR reactor adopts honeycomb fashion reaction device.
Below in conjunction with drawings and the specific embodiments, application principle of the present utility model is further described.
As shown in Figure 1, the novel high-efficiency and energy-saving equipment for denitrifying flue gas of the utility model embodiment mainly decomposes kiln 1, preboiler 2, spray ammonia pipe 3, conditioning Tower 4, water Xian atomizing spray pipe 5, screen pack 6, deduster 7, SCR reactor 8, exhaust chimney 9 and pipeline 10 by cement; Cement decomposes kiln 1 and is arranged on initial end; The top of decomposing kiln 1 at cement is provided with spray ammonia pipe 3 through pipeline 10 link positions; Top at spray ammonia pipe 3 is provided with preboiler 2; Preboiler 2 is connected with conditioning Tower 4 through pipeline 10; In conditioning Tower 4, be provided with water Xian atomizing spray pipe 5; The bottom of conditioning Tower 4 is connected with screen pack 6 through pipeline 10; The end that goes out of screen pack 6 is connected with deduster 7 through pipeline 10; The outlet side of deduster 7 is provided with SCR reactor 8; Outlet side by SCR reactor 8 is connected with exhaust chimney 9 through pipeline 10.
Spray ammonia pipe 3 further arranges: the top of decomposing kiln 1 at cement is provided with 6 spray ammonia pipes 3 above pipeline 10 link positions, the spray ammonia pipe 3 interior catalyst that are further provided with, the nitrogen oxide that is conducive to accelerate in flue gas fully reacts with ammonia, and flue gas is carried out to denitration; Water Xian atomizing spray pipe 5 is provided with three layers, every layer is provided with 6 water Xian atomizing spray pipes 5, being provided with of hierarchy is beneficial in conditioning Tower better to mist water Xian atomization, more being conducive to that flue gas is carried out to further spray processes, can effectively stop the escape of ammonia, prevent flue gas albinism and flue gas with water, etching apparatus; In deduster 7, be provided with dedusting electric field, make most of dust deposit in dedusting electric field, thereby can improve the efficiency of dust collection of fine dust; CR reactor 8 adopts honeycomb fashion reaction device, makes the nitrogen oxide not being reduced, on the surface of SCR catalyst, selective catalytic reduction reaction occur, and the most nitrogen oxide that are conducive in flue gas are reduced to N, thereby can improve denitration rate.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a novel high-efficiency and energy-saving equipment for denitrifying flue gas, it is characterized in that, this novel high-efficiency and energy-saving equipment for denitrifying flue gas comprises: cement decomposes kiln, preboiler, spray ammonia pipe, conditioning Tower, water Xian atomizing spray pipe, screen pack, deduster, SCR reactor, exhaust chimney, pipeline;
Cement decomposes the left end that kiln is arranged on novel high-efficiency and energy-saving equipment for denitrifying flue gas, the top that cement decomposes kiln arranges spray ammonia pipe, the top of spray ammonia pipe is provided with preboiler, preboiler connects conditioning Tower, in conditioning Tower, be provided with water Xian atomizing spray pipe, the bottom of conditioning Tower connects screen pack, and the end that goes out of screen pack connects deduster, the outlet side of deduster is provided with SCR reactor, and the outlet side of SCR reactor connects exhaust chimney.
2. novel high-efficiency and energy-saving equipment for denitrifying flue gas as claimed in claim 1, is characterized in that, the top that cement decomposes kiln connects spray ammonia pipe by pipeline.
3. novel high-efficiency and energy-saving equipment for denitrifying flue gas as claimed in claim 1, is characterized in that, preboiler connects conditioning Tower by pipeline.
4. novel high-efficiency and energy-saving equipment for denitrifying flue gas as claimed in claim 1, is characterized in that, the bottom of conditioning Tower connects screen pack by pipeline.
5. novel high-efficiency and energy-saving equipment for denitrifying flue gas as claimed in claim 1, is characterized in that, the end that goes out of screen pack connects deduster by pipeline.
6. novel high-efficiency and energy-saving equipment for denitrifying flue gas as claimed in claim 1, is characterized in that, the outlet side of SCR reactor connects exhaust chimney by pipeline.
7. novel high-efficiency and energy-saving equipment for denitrifying flue gas as claimed in claim 1, is characterized in that, is provided with to be beneficial to and accelerates the catalyst that the nitrogen oxide in flue gas fully reacts with ammonia in spray ammonia pipe.
8. novel high-efficiency and energy-saving equipment for denitrifying flue gas as claimed in claim 1, is characterized in that, in water Xian atomizing spray pipe, is provided with three layers, and every layer is provided with 6 water Xian atomizing spray pipes.
9. novel high-efficiency and energy-saving equipment for denitrifying flue gas as claimed in claim 1, is characterized in that, is provided with the dedusting electric field of the efficiency of dust collection that improves fine dust in deduster.
10. novel high-efficiency and energy-saving equipment for denitrifying flue gas as claimed in claim 1, is characterized in that, SCR reactor adopts honeycomb fashion reaction device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320481978.5U CN203489717U (en) | 2013-08-08 | 2013-08-08 | Novel high-efficiency energy-saving flue gas denitration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320481978.5U CN203489717U (en) | 2013-08-08 | 2013-08-08 | Novel high-efficiency energy-saving flue gas denitration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203489717U true CN203489717U (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320481978.5U Expired - Fee Related CN203489717U (en) | 2013-08-08 | 2013-08-08 | Novel high-efficiency energy-saving flue gas denitration device |
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| CN (1) | CN203489717U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645828A (en) * | 2015-02-12 | 2015-05-27 | 浙江省环境保护科学设计研究院 | SCR denitration device and method applied to high-dust-content smoke from kiln tail of cement clinker production line |
-
2013
- 2013-08-08 CN CN201320481978.5U patent/CN203489717U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645828A (en) * | 2015-02-12 | 2015-05-27 | 浙江省环境保护科学设计研究院 | SCR denitration device and method applied to high-dust-content smoke from kiln tail of cement clinker production line |
| CN104645828B (en) * | 2015-02-12 | 2017-01-04 | 浙江省环境保护科学设计研究院 | A kind of SCR denitration device being applied to cement clinker production line kiln tail high-dust flue gas and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160811 Address after: 523, room 288, 030006 Changzhi Road, Taiyuan hi tech Zone, Shanxi, China Patentee after: SHANXI BAINAHUANKE CONTRACT ENERGY MANAGEMENT CO., LTD. Address before: 030000, new development building, No. 288, Changzhi Road, Taiyuan, Shanxi, 5 Patentee before: Wen Tao |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20190808 |
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| CF01 | Termination of patent right due to non-payment of annual fee |