| 水泥窑烟气脱硝系统的实践 |
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| 引用本文： | 王学忠,张晓蒙,张璐衡,田文军,刘鹏玉.水泥窑烟气脱硝系统的实践[J].水泥技术,2020(1):78-82. |
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| 作者姓名： | 王学忠 张晓蒙 张璐衡 田文军 刘鹏玉 |
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| 作者单位： | 成县祁连山水泥有限公司 |
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| 摘 要： | 介绍了水泥窑头和窑尾烧成系统烟气脱硝的技术原理和方案。在窑头采用了一次风量<6%的低氮煤粉燃烧控制技术,在窑尾分解炉采用高强还原燃烧控制技术,以降低回转窑内热力型NOx生成量。在3000t/d水泥熟料生产线带规格φ6.1m×31mTDF分解炉实际使用显示,采用该技术方案可实现脱硝效率60%以上,降低了氨水用量和脱硝成本。
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| 关 键 词： | 脱硝 NOx 还原燃烧 低氮燃烧 |
Practice of Cement Kiln Fue Gas Denitrification System |
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| WANG Xuezhong,ZHANG Xiaomeng,ZHANG Luheng,TIAN Wenjun,LIU Pengyu.Practice of Cement Kiln Fue Gas Denitrification System[J].Cement Technology,2020(1):78-82. |
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| Authors: | WANG Xuezhong ZHANG Xiaomeng ZHANG Luheng TIAN Wenjun LIU Pengyu |
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| Affiliation: | (Chengxian Qilianshan Cement Co.,Ltd.,Chengxian Gansu 450007) |
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| Abstract: | It introduces the principle and scheme of the cement kiln flue gas denitrification in both kiln and calciner system,which using the low NOx pulverized coal combustion control technology in the kiln that controls the primary air flow<6%,and the high-strength reduction combustion control technology in the calciner to reduce thermal NO_x from the kiln.In the actual operation of 3000t/d(with TDF calciner of■6.1m×31m)cement clinker production line,with the adoption of above technical scheme,results indicate that the denitrification efficiency can be reached above 60%,saving ammonia water and reducing denitrification costs. |
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| Keywords: | denitrification NOx reductive combustion low nitrogen combustion |
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