Effects of Ozygen Blast on the Tuyere Working Life in Packed Bed Type Ironmaking Process

摘要：

A2-D steady-state heat transfer model is built to investigate the effects of oxygen blast on the tuyere working life in packed bed type ironmaking process. Base on the model calculation, due to the higher RAFT and shorter raceway of oxygen blast, the flame temperature of the front part copper tuyere is so high as to beyond the critical security temperature of 673K of copper then shorten its working life. Improving quality of fuel, controlling fuel fine rate in furnace and PCI on tuyere are helpful for prolonging tuyere working life in actual operations with oxygen blast.

关键词： ozygen blast tuyere working life raceway depth cooling water velocity

作者: YAO Xiao-guang ZHENG Shao-bo

作者单位: Shanghai Key Laboratory of Modern Metallurgy & Materials Processing, Shanghai University, Shanghai 200072, China

会议类型: 国际会议

会议名称: The 5th International Congress on the Science and Technology of Ironmaking(第五届国际炼铁科技大会 ICSTI09)

会议地点: 上海

会议语种:英文

页码: 1225-1228

在线出版日期: 2009-10-20（万方平台首次上网日期，不代表论文的发表时间）