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一、前言武钢高炉自1978年开始使用澳大利亚矿石。最初,由于对澳矿特性缺乏认识,使用量不多。1978年3月,3号高炉曾经将澳矿配比增到40％,此后各高炉澳矿使用量相继增加,1978～1979年一般为20～30％。自1980年以来,由于烧结矿碱度从1.3提高到1.5,高炉用料配比必须随之变动。因澳矿价格高,为了不增加生铁成本,对澳矿用量加以控制,所以1980～1984年高炉澳矿的配比一般在10～20％,常与海南矿、青路矿等搭配使用(热料率为80％左右)。实践证明,武钢高炉使用澳矿配比为20％左右,或再高一点时,
I. Introduction WISCO blast furnaces have been using Australian ore since 1978. Initially, due to a lack of understanding of the characteristics of the Australian ore, the use of small amount. In March 1978, No.3 blast furnace once increased the ratio of Australian ore to 40%. Since then, the use of each of the blast furnaces has been increasing, from 20% to 30% from 1978 to 1979. Since 1980, as the basicity of sinter increases from 1.3 to 1.5, the blast mix needs to be changed. Due to the high price of Australian ore, in order not to increase the cost of pig iron and to control the amount of Australian ore, the proportion of blast furnace ore from 1980 to 1984 is generally 10 to 20%, often used in combination with Hainan mine and Qinglu mining Hot material rate of about 80%). Practice has proved that the ratio of WISCO blast furnace using ore is about 20%, or a little higher,