摘要
以高炉炉料结构为基础,采用高温模拟方法,研究了混合炉料中不同MgO含量对炉料软熔性能的影响规律。结果表明,随着混合炉料中MgO含量的增加,开始软化温度和软化结束温度均升高,软化温度区间变宽;MgO含量越高软化结束温度与压差陡升温度的差距越大;压差陡升温度、滴落温度和熔化温度区间均随着混合炉料中MgO含量的升高呈升高的趋势,导致熔化带的厚度增加;软熔带的最大压差和综合透气性指数均随着混合炉料中MgO含量的增加而增加,不利于高炉的稳定顺行。
The influences of different MgO contents in the mixed burden on the softening-melting properties of burden by high temperature simulation experiment were studied.The results indicate that with the increase of MgO content in the mixed burden,T10%and T40%increase,and the softening temperature range widens.The higher the MgO content,the greater the difference between T40%and Ts.Besides,Ts,Td andΔTds all increase with the increase of MgO content in the mixed burden,which leads to the increase of the thickness of the melting zone.Finally,theΔPmax and S of the softening-melting zone increase with the increase of MgO content in the mixed burden,which is not conducive to the stability of the blast furnace.
作者
卢建光
李建鹏
刘小杰
刘凯
吕庆
Lu Jiangang;Li Jianpeng;Liu Xiaojie;Liu Kai;LüQing(School of Metallurgy,Northeastern University,Shenyang 110819,Liaoning,China;HBIS Group Hansteel Company,Handan 056000,Hebei,China;College of Metallurgy&Energy,North China University of Science and Technology,Tangshan 063009,Hebei,China)
出处
《钢铁钒钛》
CAS
北大核心
2020年第5期113-118,共6页
Iron Steel Vanadium Titanium
基金
国家自然科学基金项目(U1360205)
关键词
高炉
MGO
软熔性能
透气性
初渣
blast furnace
MgO
softening-melting property
air permeability
primary slag
