我厂高炉从1958年建成投产以来,由于没有原燃料基地和定点的矿山供应,故入炉原燃料一直靠自己找米下锅,吃“百家饭”维持生产.近年来,烧结料配用矿种达一二十种之多,成份复杂,而且绝大多数矿粉都不同程度地含有碱金属(K_2O、Na_2O)(见表1).随着高炉冶炼的不断强化,碱金属对高炉生产的危害日益突出. Since the blast furnace was put into operation in 1958, since the original fuel base and the fixed-point mine supply were not available, the raw fuel into the furnace has always been looking for rice cookers and eating “100 rice” to maintain the production. In recent years, The minerals are up to a dozen, the composition is complex, and the vast majority of ore powder contains alkali metals (K2O, Na2O) to varying degrees (see Table 1) .Along with the continuous strengthening of blast furnace smelting, alkali metal on blast furnace production The harm is increasingly prominent.