烧结原料的中和混匀工艺,早在四十年代国外就开始研究,六十年代大规模地用于工业生产,国外高炉投资的30%用于原料处理,经济效果十分显著。由于各国的原料条件、装备水平及操作水平不同,增产节能幅度各异。根据苏联及我国炼铁的有关资料和文献介绍,当入炉矿的品位波动由±1%降至±0.5%,高炉焦比至少降低1.5%,生铁增 Sintering of raw materials and mixing process, as early as the forties abroad began to study the 1960s large-scale for industrial production, foreign blast furnace investment 30% for raw material processing, the economic effect is very significant. Due to the different raw material conditions, equipment levels and operation levels in various countries, the rate of energy-saving and energy-saving increases. According to the Soviet Union and China’s iron-related information and literature introduction, when the grade fluctuations into the furnace ore ± 1% ± 0.5%, reduce the blast furnace coke ratio decreased at least 1.5%, pig iron increased