Study on ramming materials with environmental-friendly used in the mud package and taphole for hot iron of large-scale blast furnaces
The composition,structures and properties of ramming materials with environmental-friendly used in the mud package and taphole for hot iron of large-scale blast furnaces were studied.The results show that the reason of dense structure of ramming materials is that the formation of silica fibers.In the replacement process of extruding mud and ramming materials,CaO,Fe2O3 and carbon penetrate towards side wall,SiC is partly oxided.The improvement of ramming materials can inhibit the penetration of molten slag,iron and carbon,and improve the service effection.The bulk density of ramming material is 2.88~2.90 g/cm3,the cold compressive strength dried at 200℃ is 12~18MPa and that fired at 1450℃ is 20~40MPa.
Blast furnace mud package taphole ramming material environmental-friendly
Xu Guotao Li Huaiyuan Chen Xilai Zhang Honglei
R&D Center,Wuhan Iron & Steel(Group)Co.,Wuhan 430080 Ironmaking Total Plant of Wuhan Iron And Steel Company Limited Co.,Wuhan 430083
国际会议
Asia Steel International conference 2012(第五届亚洲钢铁大会)
北京
英文
1-5
2012-09-23（万方平台首次上网日期，不代表论文的发表时间）