论文部分内容阅读
缚硫焦是在高硫炼焦煤中加入缚硫剂,使之“缚”住其中尽可能多的硫在炼铁时直接进入炉渣,减少生铁中硫的污染。用缚硫焦和高硫焦分别进行炼铁试验,结果表明:用缚硫焦在小高炉中炼出的铸造生铁,其合格率巳达到90%以上,取得的各项炼铁技术经济指标均显示出有一定的优越性。在炼铁试验中,曾分层从高炉中取出焦炭、矿石、熔剂、生铁和炉渣五种炉料的样品,经过大量分析,得出在分别用缚硫焦和高硫焦炼铁期间五种炉料中沿高炉高度方向的含硫量变化,从而比较清楚地掌握了硫在高炉内的活动规律。这对进一步研究提高缚硫效果以及生铁的硫化和脱硫机理,有一定的意义。
Bound sulfur scorching sulfur in the high-sulfur coking coal by adding sulfur binding agent, so that “tie” which live as much as possible in the iron smelting directly into the slag, reducing sulfur in pig iron pollution. The results of the iron smelting experiment with the bound sulfur coke and the high sulfur coke show that the qualified rate of the cast pig iron produced by binding the sulfur coke in the small blast furnace has reached over 90%, and the technical and economic indexes Shows some superiority. In ironmaking tests, samples of five types of charge, such as coke, ore, flux, pig iron and slag, were removed from the blast furnace in a stratified manner. After extensive analysis, it was found that the five charge materials In the height direction along the blast furnace changes in sulfur content, which more clearly grasp the activity of sulfur in the blast furnace law. This is of great significance for further research to improve the effect of sulfur binding and the mechanism of sulfurization and desulfurization of pig iron.