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对首钢京唐高炉投产以来的炼铁技术进步进行了总结。以“稳定边缘,打开中心;稳定中心,照顾边缘”十六字方针为指导来优化煤气分布,实行大矿批、短风口、氧煤枪、高镁含钛球团、自然镁和低硅烧结等一系列重大技术的创新,不断促进高炉炼铁技术进步,保证了2座5500m~3高炉的长期稳定顺行。2015年,2座5500m~3高炉各项指标处于国内先进水平,利用系数达2.243,焦比达300kg/t,煤比达174kg/t,燃料比达498kg/t。
This paper summarizes the progress of ironmaking technology since Shougang Jingtang blast furnace put into operation. To “stabilize the edge, open the center; stabilize the center, take care of the edge” as the guidance to optimize the distribution of gas, the implementation of large ore batch, short tuyere, oxygen coal gun, high magnesium titanium pellets, natural magnesium and low Silicon sintering and a series of major technological innovations and continue to promote the technological progress of blast furnace iron making, ensuring the long-term stability of 2 5500m ~ 3 blast furnace. In 2015, the indicators of 2 5500m ~ 3 blast furnaces are at advanced domestic level, with a utilization factor of 2.243, a coke ratio of 300kg / t, a coal ratio of 174kg / t and a fuel ratio of 498kg / t.