燃气锅炉高效SNCR脱硝技术应用实践  

Application Practice of High-efficiency SNCR Denitration Technology for Gas-fired Boilers

作　　者：汪鑫[1] 刘俊明 苏润宁 黄珊珊[2] 王晓刚 Wang Xin;Liu Junming;Su Running;Huang Shanshan;Wang Xiaogang(The Energy&Power Plant;The Energy and Environment-protection Dept.)

机构地区：[1]莱芜钢铁集团有限公司能源动力厂 [2]莱芜钢铁集团有限公司环保能源部

出　　处：《莱钢科技》2021年第4期1-2,5,共3页Laigang Science & Technology

摘　　要：锅炉SNCR脱硝技术工艺简单,能够实现烟气NOX的常规达标排放,但脱硝效率一般不足40%。SNCR脱硝在运行过程中也产生了部分不利影响,通过现场生产实际优化,提升SNCR脱硝喷枪运行的稳定性,解决水冷壁管爆管腐蚀问题;改善脱硝药剂碱金属含量,达到超低排放标准,解决因积盐影响锅炉正常运行的问题。The boiler SNCR denitration technology has a simple process and can realize the conventional standard emission of flue gas NOx,but the denitration efficiency is generally less than 40%,and the SNCR denitration also had some adverse effects during operation.Through the optimization of actual on-site production,the operation stability of SNCR denitration injection gun was improved and the explosion and corrosion problems of water-cooling tube was solved;the alkali metal content of denitration agent was improved,having met the ultra-low emission standard,and the problem of affecting the normal operation of boiler due to salt accumulation was solved.

关 键 词：燃气锅炉 SNCR脱硝 达标排放 

分 类 号：TK2[动力工程及工程热物理—动力机械及工程]