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我国炼铁技术取得了巨大的进步,不仅表现在技术经济指标上显著提高,而且还表现在炼铁领域内多项技术、设备也有飞跃发展。1高炉主要技术经济指标以宝钢为代表的一大批炼铁企业的主要技术经济指标已进入国际先进行列,标志着我国高炉的总体水平和操作管理能力已立于世界先进之林。其中,宝钢已连续5年平均高炉利用系数2.258～2.252t/m3·d,焦比294～283kg/t,喷煤比207～203kg/t的水平,且喷煤比连续5年保持在200kg/t以上。
China’s ironmaking technology has made tremendous progress, not only in terms of technical and economic indicators significantly improved, but also in the field of ironmaking a number of technologies, equipment has also been leaps and bounds. 1 The main technical and economic indexes of blast furnace The major technical and economic indexes of a large number of iron and steel enterprises represented by Baosteel have entered the international advanced ranks, which indicates that the overall level of blast furnace and operation and management ability of our country have been established in the world’s advanced forestry. Among them, the average blast furnace utilization coefficient of Baosteel has been 2.258 ~ 2.252t / m3 · d for 5 consecutive years with a coke ratio of 294 ~ 283kg / t and a coal injection rate of 207 ~ 203kg / t. The coal injection rate is maintained at 200kg / t above.