大型循环流化床锅炉节能型超低排放技术路线探讨  

Large scale circulating fluidized bed boiler energy saving ultra-low emission approach discuss

作　　者：白杨 

机构地区：[1]神华国神技术研究院,西安710065

出　　处：《华电技术》2017年第5期17-19,23,共4页HUADIAN TECHNOLOGY

基　　金：国家科技支撑计划项目(2015BAA04B02)

摘　　要：对现有大型循环流化床锅炉环保达标排放技术路线进行分析、总结,提出仅靠锅炉运行调整或锅炉改造无法满足超低排放要求时,可考虑增设成本低廉的选择性非催化还原(SNCR)烟气脱硝设备,脱硫优先选择炉内石灰石脱硫及炉外半干法脱硫方式,除尘优先选择超净电袋复合除尘方式,在满足超低排放的条件下,有较好的经济性。The existing large scale circulating fluidized bed boiler environmental protection technology roadmap was analyzed and summarized. The author indicated that the low cost selective non-catalytic reduction( SNCR) could be added if the ultra-low emission requirements cannot by satisfied by boiler operational adjustment or boiler reconstruction. Limestone in-furnace desulphurization,semi-dry out-furnace desulphurization and ultraclean electrostatic-bag composite dust removal shall be preferred for desulphurization and dust removal.

关 键 词：循环流化床锅炉 超低排放 选择性非催化还原 炉内石灰石脱硫 炉外半干法脱硫 超净电袋复合除尘 

分 类 号：X773[环境科学与工程—环境工程]