为了减少小球烧结矿在炉料结构中的比例,降低生铁成本,酒钢于2000年3～4月份在1、2号高炉进行了增加块矿配比的试验。试验结果表明,增加块矿配比对高炉的强化和指标的改善均有好处,但由于试验期所用的黑鹰山块矿所含的磷比较高,不利于品种钢的冶炼,因此,增加块矿配比也有其局限性。 In order to reduce the proportion of pellet sinter in the charge structure and reduce the cost of pig iron, JISCO conducted a test to increase the ratio of lump ore to No. 1 and No. 2 blast furnaces from March to April in 2000. The test results show that increasing the ratio of lump ore is beneficial to the strengthening of the blast furnace and the improvement of the indexes. However, due to the high phosphorus content in the black eagle block used in the trial, it is not conducive to the smelting of varieties of steel. Therefore, Mine ratio also has its limitations.