Practice and Concept for Eztending Blast Furnace Campaign Life at WISCO
This paper reviews the history and experience for extending blast furnace campaign life at WISCO. In 1960’s, the breakout of hearth wall and fast erosion of shaft lining had been key problems for the blast furnaces. In 1970, carbon block bottom with water cooling underneath was adopted at BF No.4, which obviously released the erosion of lining of blast furnace hearth and bottom. Since 1978, investigations on the mechanism of erosion of blast furnace lining have been carried out by dissecting the remaining refractories and cooling staves. Based on the understanding of the mechanism concerning erosion of blast furnace lining, BF No.5 with adoption of advanced technologies for extending blast furnace campaign life was built. BF No.5 was blown in 1991 and had been worked smoothly for 15.6 years without any repair of lining with a total iron production of 35.51Mt (corresponding to 11096.6t/m3). The experience of BF No.5 for extending blast furnace campaign life has been disseminated successfully on other blast furnaces at WISCO with continuing improvements.
campaign life dissection investigation permanent lining
ZHANG Shou-rong YU Zhong-jie
Wuhan Iron and Steel Corporation, Wuhan 430083, China Research and development Center,Wuhan Iron and Steel Corporation, Wuhan 430080, China
国际会议
The 5th International Congress on the Science and Technology of Ironmaking(第五届国际炼铁科技大会 ICSTI09)
上海
英文
834-839
2009-10-20（万方平台首次上网日期，不代表论文的发表时间）