130 t/h循环流化床燃煤锅炉超低排放净化技术应用  

Application of Ultra-low Emission Purification Technology in 130 t/h CFB Coal-fired Boiler

作　　者：周英贵 ZHOU Yinggui(Nanjing Yitao Environmental Protection Technology Co.,Ltd.,Nanjing 210010,Jiangsu,China)

机构地区：[1]南京依涛环保科技有限公司,江苏南京210010

出　　处：《能源与节能》2020年第6期75-77,共3页Energy and Energy Conservation

摘　　要：分析了130 t/h循环流化床锅炉烟气中颗粒物、SO2、NOx3种污染物产生的各种因素,介绍了从脱硝、脱硫、除尘等方面进行节能环保超低排放控制的主要技术措施。脱硝采用"SNCR+SCR"联合增强脱硝工艺,除尘脱硫采用布袋除尘器+石灰石石膏湿法脱硫工艺,使得锅炉机组排放至大气的粉尘颗粒物、SO2、NOx质量浓度分别不大于5 mg/Nm3、35 mg/Nm3、50 mg/Nm3(标态、干基,9%O2)。该项目实施后,污染物排放浓度大大消减,达到超低排放标准,环境效益十分明显。This paper analyzed the various factors of the generation of the three pollutants of particles,SO2 and NOx in the flue gas of the 130 t/h CFB boiler,and introduced the main technical measures for the control of the ultra-low emission of energy conservation and environmental protection from the aspects of denitrification,desulfurization and dust removal.SNCR+SCR combined enhanced denitration process was adopted for denitration,and bag filter+limestone gypsum wet desulfurization process was adopted for dust removal and desulfurization,so that the mass concentrations of dust particles,SO2 and NOx discharged to the atmosphere by boiler unit were not more than 5 mg/Nm3,35 mg/Nm3 and 50 mg/Nm3 respectively(standard state,dry basis,9%O2).After the implementation of the project,the pollutant emission concentration has been greatly reduced,reaching the ultra-low emission standard,and the environmental benefits is very obvious.

关 键 词：循环流化床锅炉 SNCR SCR 湿法脱硫 布袋除尘 

分 类 号：X773[环境科学与工程—环境工程]