近年来,世界各国高炉利用系数和燃料比有了很大改善。这些成就,主要是由于新技木的采用,而提高原料质量,就是其中之一.日本各大钢铁公司对烧结原料普遍采用大规模的中和混匀作业,因而,使含铁量波动一般为±0.5%左右,个别厂达到了±0.2%。国内首钢的经验表明,原料质量的提高与其技术管理有着十分密切的关系。其原料通过 In recent years, blast furnace utilization factor and fuel ratio have been greatly improved in various countries in the world. These achievements are one of them, mainly due to the adoption of new technologies and the improvement of the quality of raw materials, and the major steel companies in Japan generally use large-scale neutralization and blending operations on sintered raw materials. As a result, the iron content fluctuates generally ± 0.5% or so, individual factory reached ± 0.2%. The experience of Shougang in China shows that the improvement of the quality of raw materials has a very close relationship with its technical management. The raw materials passed