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邯钢去年在2号255米~3高炉上试验用白煤代替部分焦炭进行炼铁试验。经过十几个月的生产实践证明,将白煤直接加入高炉炼铁,不仅能代替昂贵的冶金焦中的碳素,且能大幅度节约冶炼每吨生铁的耗焦量。当白煤量维持在总燃料比的30％时,焦比可降低20～25％,生铁成本可降低5.2元,生产率也大为改善。现将使用白煤经过及冶炼工艺操作详述于下。
Last year, Handan Iron and Steel Company in the No. 255 255 blast furnace test with white coal instead of part of the coke ironmaking test. After more than 10 months of production practice has proved that the white coal directly into the blast furnace iron can not only replace the expensive metallurgical coke carbon, and can significantly save smelting per ton of pig iron consumption. When the white coal is maintained at 30% of the total fuel ratio, the coke ratio can be reduced by 20-25%, the pig iron cost can be reduced by 5.2 yuan, and the productivity has also been greatly improved. Will be used after white coal and smelting process operations described in detail below.