华电技术 ›› 2017, Vol. 39 ›› Issue (5): 17-19.

• 研究与开发 • 上一篇    下一篇

大型循环流化床锅炉节能型超低排放技术路线探讨

  

  1. 神华国神技术研究院,西安〓710065
  • 出版日期:2017-05-25

Large scale circulating fluidized bed boiler energy saving ultralow emission approach discuss

  1. Shenhua Guoshen Technology Institute, Xi’an 710065, China
  • Published:2017-05-25

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。

关键词:

Abstract:

The existing large scale circulating fluidized bed boiler environmental protection technology roadmap was analyzed and summarized. The author indicated that the low cost selective noncatalytic reduction (SNCR) could be added if the ultralow emission requirements cannot by satisfied by boiler operational adjustment or boiler reconstruction. Limestone infurnace desulphurization, semidry outfurnace desulphurization and ultraclean electrostaticbag composite dust removal shall be preferred for desulphurization and dust removal.

Key words:

circulating fluidized bed boiler, ultralow emission, selective noncatalytic reduction, lime stone infurnace desulphurization, semidry outfurnace desulphurization