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八十年代世界炼铁技术有了新进展。装备水平进一步提高,新建高炉大都采用计算机和各种数模进行控制;采用无钟炉顶、先进的检测和传感装置、余热回收和防污装置,使高炉操作达到最佳化。近几年高炉入炉原料的球团比增加,生铁含硅量降低,喷吹煤粉,炉体寿命延长,二次能源的回收利用,直接还原技术和熔融还原技术等正在进一步开发。展望九十年代,炉料构成会发生变化,西欧和日本烧结矿和块矿的比例将减少,球团比将进一步增加,发展具有良好的高温还原性能的碱性球团矿将成为必然趋势。喷煤技术将进一步普及,喷吹量将增加,富氧大喷吹量是增产、节焦的有效措施,欧洲高炉委员会提出“极高喷吹量”(200～400公斤/吨)的设想,富氧率约51％。降低能耗是主要目标,途经是进一步改进炉料
Eighties of the world iron making technology has made new progress. The level of equipment to further improve the new blast furnace are mostly used computer and a variety of digital control; using bell-less roof, advanced detection and sensing devices, waste heat recovery and anti-fouling devices, the BF operation to achieve the best. In recent years, blast furnace into the furnace of raw materials than the increase of the pellet, pig iron reduce the amount of silicon, pulverized coal injection, furnace life extension, secondary energy recycling, direct reduction technology and melting reduction technology are further development. Looking forward to the 1990s, the composition of the charge will change, the proportion of sinter and lump ore in Western Europe and Japan will decrease, and the ratio of pellets will further increase. It is an inevitable trend to develop alkaline pellets with good high-temperature reduction performance. The coal injection technology will be further popularized, the injection volume will increase, and the oxygen-rich large injection volume will be an effective measure to increase production and section coke. The European Blast Furnace Committee proposed the idea of “extremely high injection volume” (200-400 kg / t) Oxygen enrichment rate of about 51%. Reduce energy consumption is the main goal, the way is to further improve the charge