信钢450m3高炉自2004年2月投产以来,随着原燃料条件的逐步改善,高炉生产不断强化,主要技术经济指标显著提高。2005年5月份进行富氧综合喷吹实验,2005年10月份单喷无烟煤已实现煤比142kg/t,阶段性煤比达到155kg/t,继续提高煤比仍有潜力,促进了高炉强化冶炼。 Since Sinosteel 450m3 blast furnace was put into operation in February 2004, with the gradual improvement of raw fuel conditions, blast furnace production has been continuously strengthened and the major technical and economic indicators have been significantly raised. In May 2005, the experiment of oxygen enrichment integrated injection was carried out. In October 2005, the single-jet anthracite coal has achieved a coal ratio of 142kg / t and the ratio of staged coal reached 155kg / t. There is still potential to continue to increase the coal ratio, which promotes the intensive smelting of the blast furnace.