浸入式侧吹对铁浴式熔融还原炉流动影响的数值分析  

Mathematical Simulation of Flow Behavior of Immersed Side-blowing in Iron-bath Smelting Reduction Furnace

作　　者：程伟玲[1] 尹德友[1] 冯孔方[1] 王波[1,2] 张捷宇[1] 郑少波[1] 洪新[1] 

机构地区：[1]上海大学上海市现代冶金与材料制备重点实验室,上海200072 [2]内蒙古科技大学材料与冶金学院,内蒙古包头014010

出　　处：《过程工程学报》2010年第S1期189-194,共6页The Chinese Journal of Process Engineering

基　　金：国家科技支撑计划资助项目(编号:2006BAE03A12);先进钢铁材料技术国家工程研究中心资助项目;长江学者和创新团队发展计划资助项目(编号:IRT0739);中国博士后科学基金资助项目(编号:20080430652)

摘　　要：针对铁浴式熔融还原的浸入式侧吹技术,运用CFD软件Fluent6.3对熔融还原终还原炉内的流体流动进行了数值模拟计算,分析了不同侧枪枪位以及不同喷吹流量对熔融还原炉内流动状态以及喷溅的影响.计算结果表明,低枪位侧吹(284mm)油相中含气量大,搅拌范围大,气油界面和水油界面的波动剧烈.在相同的侧枪枪位下(284mm),随着流速增大,油层扰动变大,加速水油的混合,加剧了自由表面的喷溅.侵入式侧吹会引起熔池中流体的环流,这会引起炉墙的侵蚀.CFD software Fluent 6.3 was used to simulate the flow behavior in the iron-bath smelting reduction furnace with the side-blown immersion techniques.The flow and splash states were analyzed at different gas velocities of the side-blown lance with two different positions.The results showed that under the lower side-blown lance(284 mm),the gas content of the oil phase was large,the stirring intensity was big,and the fluctuations of both the gas-oil and water-oil interfaces were obvious.Under the same side lance position(284 mm),when flow velocity increased,the disturbance became larger,the degree of mixing of water-oil became greater,the splashing became more dramatically.Immersed side-blowing would cause the circulation of fluid,which would cause the erosion near the wall of furnace.

关 键 词：熔融还原 浸入式侧吹 多相流 FLUENT 

分 类 号：TF557[冶金工程—钢铁冶金]