球团带式焙烧机烟气超低排放技术  

ULTRA-LOW FLUE GAS EMISSION TECHNOLOGY FOR PELLETIZING BELT ROASTERS

作　　者：邹峥 余斌 黄文斌 李其凡 李志 郝爱国 Zou Zheng;Yu Bin;Huang Wenbin;Li Qifan;Li Zhi;Hao Aiguo(Ironmaking Operation Department of Shougang Jingtang Iron and Steel United Co.,Ltd.,Thangshan 063200,Hebei)

机构地区：[1]首钢京唐钢铁联合有限责任公司炼铁部,河北唐山063200

出　　处：《河北冶金》2023年第2期69-73,共5页Hebei Metallurgy

摘　　要：对比了现有烧结球团烟气脱硫脱硝的工艺特点,结合首钢京唐球团带式焙烧机自身烟气特点,确定采用循环流化床CFB嵌套中温SCR的超低排放治理技术路线。介绍了该技术的工作原理,通过开发自动喷氨技术和优化脱硫塔底落灰的治理工艺,实现了低成本稳定达标运行。经检测,烟气排放指标达到了国家、行业和地方排放标准。The process characteristics of desulfurization and denitrification of flue gas of existing sintered pellets were compared, and the ultra-low emission treatment technology route using circulating fluidized bed CFB nested medium-temperature SCR was determined by combining the flue gas characteristics of Shougang Jingtang pellet belt roaster. The working principle of this technology was introduced, and the low-cost and stable operation was achieved by developing automatic ammonia injection technology and optimizing the treatment process of ash falling at the bottom of the desulfurization tower. After testing, the flue gas emission index has reached the national, industry and local emission standards.

关 键 词：球团 焙烧机 烟气超低排放 脱硫 CFB+SCR脱硝 自动喷氨 

分 类 号：X756[环境科学与工程—环境工程]