燃用高硫无烟煤水泥熟料生产线分级燃烧应用实例  

Application of Staged Combustion of High Sulfur Anthracite in Cement Clinker Production line

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)

机构地区：[1]南京凯盛国际工程有限公司,江苏南京210036

出　　处：《水泥技术》2020年第3期70-73,共4页Cement Technology

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.

关 键 词：水泥工业 高硫无烟煤 NOx 分级燃烧 

分 类 号：TQ172.622.29[化学工程—水泥工业]