摘要
分析了水泥窑NOX的形成机理,介绍了分煤、分料、分风等分级燃烧技术的特点。西南某生产线分级燃烧测试结果表明,燃用高硫无烟煤的水泥熟料生产线NOx初始排放浓度高,分级燃烧降低了水泥熟料生产线SNCR脱硝前的NOx浓度,减轻了SNCR的脱硝压力,分级燃烧效率均值在16.38%,分级燃烧后、SNCR前的NOX平均值为1378.66mg/m^3(标)。
The formation mechanism of NOx in cement kilns is analyzed,and the characteristics o staged combustion technologies such as coal separation,material separation and air separation are introduced.The results of the staged combustion test of a production line in southwestern China show that the initial NOx emission concentration of the cement clinker production line burning high-sulfur anthracite is high,and the staged combustion reduces the NOx concentration before the SNCR of the cement clinker production line,and reduces the denitration load of the SNCR.The average value o staged combustion is 16.38%,and the average value of NOx before SNCR is 1378.66 mg/Nm^3.
作者
成舒望
桑圣欢
吴涛
罗超
冯京
CHENG Shuwang;SANG Shenghuan;WU Tao;LUO Chao;FENG Jing(Nanjing Kisen International Engineering Co.,Ltd.,Nanjing Jiangsu 210036,China)
出处
《水泥技术》
2020年第3期70-73,共4页
Cement Technology
关键词
水泥工业
高硫无烟煤
NOx
分级燃烧
cement industry
high sulfur anthracite
NOx
staged combustion
