论文部分内容阅读
我厂于1985年4月15日开始使用高碱度烧结矿,碱度为1.55±0.1。与使用碱度为1.1左右的烧结矿相比,焦比下降30kg/t·铁,产量提高10%,年经济效益达420万元,为我厂近几年来最显著和最大的增产节能措施。一、我厂炉料结构演变我厂三座高炉(容积550m~3)从1972年5月投产开始至1975年4月期间使用100%原矿冶炼,以符山矿为主,其它是固镇、河西等杂矿,含铁42～45%,含硫平均0.5%左右。符山矿含硫最高月平均0.96%,致使产生大量高硫号外,生铁合格率仅76.7%。1975年4月开始使用烧结矿,至1984年
I plant in April 15, 1985 began using high alkalinity sinter, alkalinity of 1.55 ± 0.1. Compared with sinter with alkalinity of about 1.1, the coke ratio is reduced by 30kg / t · iron, the output is increased by 10%, and the annual economic benefit is up to 4.2 million yuan, which is the most significant and largest increase energy saving measure in our factory in recent years. First, the evolution of our furnace charge structure Three of our blast furnace (volume 550m ~ 3) from May 1972 put into operation in April 1975 during the period of 100% ore smelting, mainly to Fu Shan, the other is Guzhen, Hexi Other minerals, iron 42 ~ 45%, an average of about 0.5% sulfur. Fu Shan highest sulfur monthly average of 0.96%, resulting in a large number of high-sulfur, pig iron pass rate of only 76.7%. In April 1975 began to use sinter, until 1984