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1 前言攀钢高炉冶炼使用的主要原料为钒钛烧结矿,入炉品位只有46%左右,比普通矿冶炼入炉矿石平均品位低8～11个百分点。由于炉渣中TiO_2的特殊行为,炉渣易粘稠,渣铁分离差,成为严重制约高炉焦比降低的特殊困难。在近三十年的冶炼实践中,
1 Introduction Pangang blast furnace smelting main raw material for the vanadium titanium sinter, into the furnace grade is only about 46%, lower than the average grade of ordinary ore smelting furnace ore 8 to 11 percentage points. Due to the special behavior of TiO_2 in slag, the slag is sticky and the separation of slag and iron is poor, which becomes a special difficulty that severely restricts the reduction of the coke ratio of the blast furnace. In the past thirty years of smelting practice,