Study on Ramming Materials with Environmental-friendly Used in the mud Package and Taphole for Hot Iron of Large-scale Blast Furnaces

作     者：Xu Guo-tao~1,Li Huai-yuan~2,Chen Xi-lai~1,Zhang Hong-lei~1 (1.R&D Center,Wuhan Iron & Steel(Group) Co.,Wuhan 430080 2.Ironmaking Total Plant of Wuhan Iron And Steel Company Limited Co.,Wuhan 430083) 

会议名称：《Asia Steel International Conference 2012(Asia Steel 2012)》

会议日期：2012年

学科分类：080602[工学-钢铁冶金] 08[工学] 0806[工学-冶金工程] 

关 键 词：Blast furnace mud package taphole ramming material environmental-friendly 

摘      要：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 *** results show that the reason of dense structure of ramming materials is that the formation of silica *** the replacement process of extruding mud and ramming materials, CaO,FeO and carbon penetrate towards side wall,SiC is partly *** improvement of ramming materials can inhibit the penetration of molten slag,iron and carbon,and improve the service *** bulk density of ramming material is 2.88.90 g/cm,the cold compressive strength dried at 200℃is 128MPa and that fired at 1450℃is 20—40MPa.