一、引言当前,我国的钢铁工业正处于从钢铁大国向钢铁强国快速转变的时期。其中,炼铁工艺技术结构的调整是一个重要的环节。目前,国内的高炉工艺技术结构存在三种情况:一是高炉座数太多,高炉容积偏小。表1是2004年全国重点大中型企业高炉装备情况和生产能力。由表1可看出,2004 I. Introduction At present, China’s steel industry is in a period of rapid transformation from a steel power to a steel power. Among them, the iron and steel technology structure adjustment is an important part. At present, there are three kinds of domestic blast furnace technology structure: First, too many blast furnaces, blast furnace capacity is too small. Table 1 is the national key large and medium-sized enterprises in 2004 blast furnace equipment and production capacity. As can be seen from Table 1,