摘 要 太钢4350m3高炉通过提升原燃料质量管理，采取高富氧率大炉腹煤气量操作下控制合理的煤气流分布、稳定燃料比和加强炉前作业等生产操作管理，使得高炉利用系数得到逐步提高。2008年12月后实现高炉有效容积利用系数2.40 t/（m3.d）以上，炉缸截面积利用系数达66.0 t/（m2.d）以上。

Abstract Since December 2008, TISCO 4350 m3 blast furnace availability ratio is 2.40 t/（m3.d）for continuous and hearth sectional area capacity factor is over 66.0 t/（m2.d）by intensifying crude fuel handling and cast house working as well as high oxygen enrichment high coal injection operation which can realize a reasonable gas current distribution.