循环流化床锅炉燃用煤矸石对SO₂排放的影响
郑合飞
（山西漳电大唐热电有限公司，山西大同037003）
摘要： 通过从理论上分析循环流化床锅炉的燃烧特点、燃烧原理和SO₂的产生、炉内喷钙脱硫机理，说明循环流化床
锅炉燃烧高钙煤矸石具有自脱硫的现象，尤其是煤矸石中Ca/S （钙硫比） 达到2以上时尤其明显，提高了循环流化床锅炉
的脱硫效率，脱硫效率可达90%～99%。
关键词： 循环流化床锅炉；自脱硫；煤矸石
中图分类号： TK229 文献标识码： A 文章编号： 2095-0802-(2016)02-0062-02
On the Effect of Spontaneous Combustion Gangue in Circulating Fluidized Bedboiler on SO₂
Emission
ZHENG Hefei
(Zhangdian Datang Thermal Power Co., Ltd. of Shanxi, Datong 037003, Shanxi, China)
Abstract: Through the theoretical analysis of combustion characteristics, combustion principle, generation of SO₂, desulfuration
mechanism of limestone injection into furnace, this paper explained that there were phenomenon of auto-desulfurization when
high-calcium coal gangues were burned in circulating fluidized bedboiler, which can improve the desulfurization efficiency of
circulating fluidized bedboiler, and sulfur removal efficiency can reach to 90%~99%.

Key words: circulating fluidized bed boiler; auto-desulfurization; coal gangue