摘要
为掌握石灰石造渣和石灰造渣炼钢在工艺能耗方面的不同,在300t转炉开展石灰石造渣炼钢试验,并从煤气、蒸汽回收及钢渣产生角度进行能耗对比。结果表明,石灰石造渣与石灰造渣炼钢相比,在废钢加入量减少71.6kg/t的前提下,煤气(CO)回收量提高21.5m3/t,蒸汽回收量提高28.0kg/t,钢渣量减少31.4kg/t。从石灰类熔剂能耗、煤气和蒸汽回收产生的能量及钢渣产生能耗角度对比,两者的能耗平均分别为-38.9、-23.9kg/t,前者较后者最大节能降耗23.3kg/t,最小节能降耗9.5kg/t,平均节能降耗15.0kg/t。
In order to understand the difference of process energy consumption between limestone slagging and lime slagging in steelmaking,experiments with limestone as slagging agent were carried out in 300tconverter,and the energy consumption was compared from the angles of gas,steam recovery and steel slag production.The results showed that comparing the steelmaking process with limestone as slagging agent to that with lime as slagging agent,on the premise of reducing the scrap steel addition by 71.6kg per ton steel,the recovery of gas(CO)increased by 21.5m3per ton steel,the recovery of steam increased by 28.0kg per ton steel,and the steel slag decreased by 31.4kg per ton steel.From the energy consumption of lime fluxes,the energy generated by gas and steam recovery,and the energy consumption of steel slag,the average energy consumption of the two processes was-38.9kg per ton steel and-23.9kg per ton steel,respectively.The former saved energy 23.3kg per ton steel at most and 9.5kg per ton steel at least and 15.0kg per ton steel on average compared with the latter.
作者
桂满城
乌力平
朱伦才
饶磊
曹欣川洲
徐晓伟
GUI Man-cheng;WU Li-ping;ZHU Lun-cai;RAO Lei;CAO Xin-chuanzhou;XU Xiao-wei(Technology Center,Maanshan Iron and Steel Co.,Ltd.,Ma′anshan 243000,Anhui,China)
出处
《中国冶金》
CAS
北大核心
2020年第1期84-87,共4页
China Metallurgy
关键词
石灰石
炼钢
节能
降耗
limestone
steelmaking
energy saving
consumption reduction
