京唐3号高炉原燃料质量劣化下的提产创效措施
Increasing Production and Benefit in Jingtang Steel No.3 BF amid Raw Material and Fuel Quality Deterioration
苗青 1王喜元 1李伟 1庄辉 1郭宏烈 1王凯1
作者信息
- 1. 首钢京唐钢铁联合有限责任公司炼铁部,河北唐山 063200
- 折叠
摘要
对京唐3号高炉原燃料质量劣化下的提产创效措施进行了总结.2021年7月,由于焦煤和秘鲁球团矿粉资源紧缺,原燃料质量劣化,3号高炉炉况稳定性减弱,炉墙水温差波动增大,铁水[Si]含量呈下降趋势.通过采取改善原燃料质量、优化装料制度、改善送风制度、稳定铁水[Si]、强化出铁管理等措施,尤其是装料制度坚持"打开中心、稳定边沿,稳定中心、照顾边沿"原则,炉况稳定性明显增强,日产量逐步提高.2022年4月,3号高炉焦比283.9kg/t,燃料比494.8kg/t,日产量12963t/d;5月,焦炭负荷达到6.01,利用系数达到2.40t/(m3·d)以上.
Abstract
The efforts to increasing production and benefit in Jingtang Steel No.3 BF amid raw material and fuel quality dete-rioration are introduced.In July 2021,the furnace condition is not stable as before,the water temperature difference of fur-nace wall varies greatly,and the hot metal[Si]content slopes down for the reasons of the shortage of coking coal and Peruvi-an fine ore for pelletizing,and deterioration of raw material and fuel quality.As a response,the attempts of improving the quality of raw material and fuel,optimizing the charging system and the blasting system,stabilizing the hot metal[Si]con-tent,and strengthening the management of tapping are practiced.All these efforts,especially the charging system strategy of"Smoothening the central gas flow,and stabilizing both the center and edge gas flow",make the furnace running more and more stable,and the daily output steps up gradually.In April 2022,the coke rate and the fuel rate of the furnace drop to 283.9kg/t and494.8kg/t respectively,and the daily output reaches 12,963t/d.In May,the coke load falls to 6.01 and the productivity hits over 2.40t/(m3·d).
关键词
特大型高炉/炉况/原燃料质量/操作制度/日产量Key words
super-large blast furnace/furnace condition/raw material and fuel quality/operating system/daily output引用本文复制引用
出版年
2024
NETL
NSTL
万方数据