CN205133418U - Catalysis of cement kiln steam and coal powder gasification system - Google Patents
Catalysis of cement kiln steam and coal powder gasification system Download PDFInfo
- Publication number
- CN205133418U CN205133418U CN201520943422.2U CN201520943422U CN205133418U CN 205133418 U CN205133418 U CN 205133418U CN 201520943422 U CN201520943422 U CN 201520943422U CN 205133418 U CN205133418 U CN 205133418U
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- CN
- China
- Prior art keywords
- steam
- kiln
- control system
- cement
- coal
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- 239000004568 cement Substances 0.000 title claims abstract description 29
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 239000003245 coal Substances 0.000 title claims abstract description 16
- 238000002309 gasification Methods 0.000 title claims abstract description 11
- 239000000843 powder Substances 0.000 title abstract 3
- 238000006555 catalytic reaction Methods 0.000 title abstract 2
- 239000003054 catalyst Substances 0.000 claims abstract description 17
- 238000002347 injection Methods 0.000 claims abstract 2
- 239000007924 injection Substances 0.000 claims abstract 2
- 238000005507 spraying Methods 0.000 claims description 18
- 239000002817 coal dust Substances 0.000 claims description 14
- 241000707825 Argyrosomus regius Species 0.000 claims description 12
- 238000002485 combustion reaction Methods 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 229910002089 NOx Inorganic materials 0.000 abstract description 7
- 239000007921 spray Substances 0.000 abstract description 6
- 238000011109 contamination Methods 0.000 abstract description 5
- 238000006722 reduction reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 241000893018 Armeria Species 0.000 abstract 1
- 230000005611 electricity Effects 0.000 abstract 1
- 229940108066 Coal Tar Drugs 0.000 description 7
- 239000011280 coal tar Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 238000005422 blasting Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 208000008425 Protein Deficiency Diseases 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001627 detrimental Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002829 reduced Effects 0.000 description 1
- 230000001131 transforming Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The utility model relates to a catalysis of cement kiln steam and coal powder gasification system, including cement rotary kiln, dore furnace, steam system, dore furnace cone portion evenly is equipped with oxygendeficient combustor, steam system includes catalyst jar, steam control system, catalyst jar front end is equipped with steam input pipeline, the catalyst jar passes through the input that steam control system is connected to the delivery duct way, steam control system's output passes through the delivery duct way and connects first steam spray gun, annular pipeline respectively, be equipped with second steam spray gun on the annular pipeline, second steam spray gun is established in oxygendeficient combustor top. Its beneficial effect does: utilizing exhaust -heat boiler electricity generation saturated steam, making its coal jiao that can generate in high temperature with the buggy that the coal powder injection rifle spouts react, turn into contamination free N2 with NOx, reduce the atmosphere pollution, energy saving and consumption reduction practices thrift manufacturing cost simultaneously.
Description
Technical field
The utility model relates to cement production device field, and it is vapor catalyzed with coal dust gasification system to be specifically related to a kind of cement kiln.
Background technology
The novel dry-method cement clinker production line of existing more than the 2000t/d of China more than 1700, more than 5000t cement producing line accounts for more than 60%, amounts to more than 900 production line.National cement gross annual output amount reaches 2,300,000,000 tons more than, and NOx emission accounts for 15% ~ 18%, NOx of the total discharge in the whole nation has become the accomplice that major polluting atmosphere environment is detrimental to health, therefore reduces oxynitride very urgent.
2011-2014 country carries out denitration improvement in cement industry mandatory installation SNCR technology to kiln tail gas, discharged nitrous oxides reaches discharging standards substantially, but cement production enterprise running cost significantly increases, reductive agent ammonia volume 2500t/d production line is 400-800kg/h, 5000t/d production line is 700-1200kg/h, ton grog denitration cost increases average out to 3-4.8 unit/t, and enterprise increases production cost 300-800 ten thousand yuan every year.Newly-built enterprise was from 1 day March in 2014; existing enterprise execution environment protection portion and State Administration for Quality Supervision and Inspection and Quarantine from 1 day July in 2015 issue the Cement industry atmosphere pollutants emission standards GB4915-2013 implemented; specify that existing cement mill oxynitride (by NO2) emission concentration is no more than 400mg/Nm3 (local general 300mg/Nm3), cement mill, major area oxynitride (by NO2) emission concentration is no more than 320mg/Nm3 (local general 300mg/Nm3).After implementing new standard, cement production enterprise denitration cost is faced with larger pressure, and profit is more and more lower.Energy-saving and cost-reducing, new technology technological transformation denitrating technique, reduces the task of top priority that denitration running cost is enterprise.
Summary of the invention
For overcoming described deficiency, the purpose of this utility model is to provide a kind of cement kiln vapor catalyzed with coal dust gasification system, effectively can reduce NO in kiln
x, generate the free of contamination N of air
2, save energy and reduce the cost simultaneously, save production cost.
The utility model solves the technical scheme that its technical problem adopts: a kind of cement kiln is vapor catalyzed with coal dust gasification system, comprise cement rotary kiln, decomposing furnace, steam system, one end of described cement rotary kiln is provided with kiln head cover, the other end is provided with kiln tail smoke-box, described decomposing furnace is vertically located at kiln tail smoke-box upper end by decomposing furnace cone portion, described decomposing furnace cone portion is evenly provided with combustion with meagre oxygen device, described steam system comprises catalyst tank, steam control system, described catalyst tank front end is provided with steam input pipe road, cogeneration saturation steam by steam input pipe road access catalyst tank, described catalyst tank connects the input terminus of steam control system by steam conveying pipe, the output terminal of described steam control system connects the first steam spraying gun respectively by steam conveying pipe, annular duct road, described annular duct road is provided with the second steam spraying gun, described second steam spraying gun is located at above combustion with meagre oxygen device.
Further, described steam control system is connected with electrical control cubicles.
Further, described kiln head cover is provided with kiln hood coal spouting gun, and the described first steam spraying gun kiln hood coal spouting gun that removably connects is inner.
Further, described second steam spraying gun is integrated in combustion with meagre oxygen device.
The utility model has following beneficial effect: appropriate location in vapo(u)r blasting to kiln hood, the coal tar that its coal dust that can spray into kiln hood coal spouting gun is generated in high temperature reacts, first the coal dust sprayed in coal spouting gun generates coal tar in high temperature, coal tar reacts with the water vapour sprayed into again, generate carbon monoxide and hydrogen, there is reduction reaction in the NOx in carbon monoxide, hydrogen and kiln gas, is free of contamination N by NOx conversion
2and water, reduce topsoil, save energy and reduce the cost simultaneously, save production cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is kiln hood steam system structural representation of the present utility model.
Fig. 3 is kiln tail steam system structural representation of the present utility model.
In figure, 1 decomposing furnace, 11 cone portion, 2 cement rotary kilns, 21 kiln tail smoke-boxes, 22 kiln head covers, 3 steam systems, 31 steam input pipes, 32 catalyst tank, 33 steam control systems, 34 electrical control cubicles, 35 annular duct roads, 36 steam conveying pipes, 4 kiln hood coal spouting guns, 5 combustion with meagre oxygen devices.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.
According to Fig. 1, Fig. 2, a kind of cement kiln shown in Fig. 3 is vapor catalyzed with coal dust gasification system, comprise cement rotary kiln 2, decomposing furnace 1, steam system 3, one end of described cement rotary kiln 2 is provided with kiln head cover 22, the other end is provided with kiln tail smoke-box 21, described decomposing furnace 1 is vertically located at kiln tail smoke-box 21 upper end by decomposing furnace 1 cone portion 11, described decomposing furnace 1 cone portion 11 is evenly provided with combustion with meagre oxygen device 5, described steam system 3 comprises catalyst tank 32, steam control system 33, described catalyst tank 32 front end is provided with steam input pipe road 31, cogeneration saturation steam is accessed catalyst tank 32 by steam conveying pipe 36, described catalyst tank 32 connects the input terminus of steam control system 33 by steam conveying pipe 36, the output terminal of described steam control system 33 connects the first steam spraying gun respectively by steam conveying pipe 36, annular duct road 35, described annular duct road 35 is provided with the second steam spraying gun, described second steam spraying gun is located at above combustion with meagre oxygen device 5.
Further, described steam control system 33 is connected with electrical control cubicles 34.
Further, described kiln head cover 22 is provided with kiln hood coal spouting gun 4, and the described first steam spraying gun kiln hood coal spouting gun 4 that removably connects is inner.
Further, described second steam spraying gun is integrated in combustion with meagre oxygen device 5.
Its principle of work is: cogeneration saturation steam by steam input pipe road access catalyst tank, utilize steam conveying pipe will react the gas input steam control system of generation in catalyst tank, after decomposing furnace normal operation, oil atomizer gun in kiln hood coal spouting gun is taken out, install the first steam spraying gun, then appropriate location in vapo(u)r blasting to kiln hood, the coal tar that its coal dust that can spray into coal spouting gun is generated in high temperature reacts, first the coal dust sprayed in coal spouting gun generates coal tar in high temperature, coal tar reacts with the water vapour sprayed into again, generate carbon monoxide and hydrogen, carbon monoxide, there is reduction reaction in the NOx in hydrogen and kiln gas, by NO
xbe converted into free of contamination N
2and water.
Then by steam control system and annular duct road, steam is sent into the second steam spraying gun above combustion with meagre oxygen device, the saturation steam of the second steam spraying gun ejection mixes with the scorching hot coal dust that combustion with meagre oxygen device sprays, scorching hot coal tar and water vapour reaction, the NO in the carbon monoxide of generation and hydrogen and kiln gas
xreduction reaction occurs, and is free of contamination N by NOx conversion
2and water.
The utility model is not limited to described embodiment, and anyone should learn the structural changes made under enlightenment of the present utility model, and every have identical or close technical scheme with the utility model, all falls within protection domain of the present utility model.
Technology, shape, structure part that the utility model is not described in detail are known technology.
Claims (4)
1. a cement kiln is vapor catalyzed with coal dust gasification system, comprise cement rotary kiln, decomposing furnace, steam system, one end of described cement rotary kiln is provided with kiln head cover, the other end is provided with kiln tail smoke-box, described decomposing furnace is vertically located at kiln tail smoke-box upper end by decomposing furnace cone portion, it is characterized in that: described decomposing furnace cone portion is evenly provided with combustion with meagre oxygen device, described steam system comprises catalyst tank, steam control system, described catalyst tank front end is provided with steam input pipe road, described catalyst tank connects the input terminus of steam control system by steam conveying pipe, the output terminal of described steam control system connects the first steam spraying gun respectively by steam conveying pipe, annular duct road, described annular duct road is provided with the second steam spraying gun, described second steam spraying gun is located at above combustion with meagre oxygen device.
2. a kind of cement kiln according to claim 1 is vapor catalyzed with coal dust gasification system, it is characterized in that: described steam control system is connected with electrical control cubicles.
3. a kind of cement kiln according to claim 1 is vapor catalyzed with coal dust gasification system, it is characterized in that: described kiln head cover is provided with kiln hood coal injection pipe, and the described first steam spraying gun kiln hood coal spouting gun that removably connects is inner.
4. a kind of cement kiln according to claim 1 is vapor catalyzed with coal dust gasification system, it is characterized in that: described second steam spraying gun is integrated in combustion with meagre oxygen device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520943422.2U CN205133418U (en) | 2015-11-24 | 2015-11-24 | Catalysis of cement kiln steam and coal powder gasification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520943422.2U CN205133418U (en) | 2015-11-24 | 2015-11-24 | Catalysis of cement kiln steam and coal powder gasification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205133418U true CN205133418U (en) | 2016-04-06 |
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ID=55619230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520943422.2U Active CN205133418U (en) | 2015-11-24 | 2015-11-24 | Catalysis of cement kiln steam and coal powder gasification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205133418U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953224A (en) * | 2016-06-20 | 2016-09-21 | 上海三融环保工程有限公司 | Saturated steam catalytic burner used for cement decomposition furnace |
| CN106595294A (en) * | 2016-10-11 | 2017-04-26 | 北京绿岩环保科技有限责任公司 | Special type catalytic reduction method composite denitration system |
| CN106675650A (en) * | 2017-03-06 | 2017-05-17 | 上海三融环保工程有限公司 | ERD (Efficient Reburning Denitration)+coal saturated steam catalytic combustion denitration device and technique |
-
2015
- 2015-11-24 CN CN201520943422.2U patent/CN205133418U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953224A (en) * | 2016-06-20 | 2016-09-21 | 上海三融环保工程有限公司 | Saturated steam catalytic burner used for cement decomposition furnace |
| CN106595294A (en) * | 2016-10-11 | 2017-04-26 | 北京绿岩环保科技有限责任公司 | Special type catalytic reduction method composite denitration system |
| CN106595294B (en) * | 2016-10-11 | 2020-05-22 | 北京绿岩环保科技有限责任公司 | Catalytic reduction method composite denitration system |
| CN106675650A (en) * | 2017-03-06 | 2017-05-17 | 上海三融环保工程有限公司 | ERD (Efficient Reburning Denitration)+coal saturated steam catalytic combustion denitration device and technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |