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宣钢有三座1000m3高炉,通过不断探索和完善高炉的富氧喷煤操作技术,在外部原燃料条件逐步改善的情况下,合理喷煤,积极调整高炉操作制度,冶炼低硅生铁,加强炉内及炉前管理,采用高风温、高富氧大喷煤、烟煤混喷技术,实现了提高喷煤比、烟煤比的目标,煤比达到150kg/t以上,烟煤比达到了65%,经济效益显著。
In Xuanhua, there are three 1000m3 blast furnaces. Through continual exploration and improvement of oxygen-rich coal injection technology, blast furnaces are rationally injected with coal and operating conditions of the blast furnace are improved. Smelting low-silicon pig iron and strengthening of the furnace And pre-blast management, the goal of increasing coal injection ratio and bituminous coal ratio is achieved by using high-temperature-temperature, high-oxygen-rich and large injection coal and mixed bituminous coal injection technology. The coal ratio reaches over 150kg / t and the bituminous coal ratio reaches 65% Significant.