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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 Immersion Side-blowing in Iron-bath Smelting Reduction Furnace

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【作者】 程伟玲尹德友冯孔方王波张捷宇郑少波洪新

【Author】 CHENG Weiling~1,YIN Deyou~1,FENG Kongfang~1,WANG Bo~(1 2),ZHANG Jieyu~(1*),ZHENG Saobo~1,HONG Xin~1 (1.Shanghai Key Laboratory of Modern Metallurgy and Materials Processing,Shanghai University, Shanghai 200072,China;2.Material and Metallurgical School,Inner Mongolia University of Science & Technology,Baotou 014010)

【机构】 上海大学上海市现代冶金与材料制备重点实验室内蒙古科技大学材料与冶金学院

【摘要】 本文针对铁浴式熔融还原的浸入式侧吹技术,运用CFD(计算流体动力学)软件Fluent6.3对熔融还原终还原炉内的流动状态进行了三维数值模拟计算以及仿真分析。为了使数学模拟的结果同水力学模拟的结果进行对比,本模拟工作用水模拟铁液,20~#机油模拟渣液,观察其内部流动变化规律。该计算采用VOF多相流模型以及标准k-ε湍流模型模拟气、油、水三相流的流动,主要分析了两种不同侧枪枪位下的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更加剧烈。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。

【Abstract】 In this paper,the CFD(computational fluid dynamics) software Fluent6.3 was used to simulate the flow behavior in the iron-bath smelting reduction furnace with the side-blown immersion techniques.In order to make the comparison between the results of mathematical simulation and the results of hydraulics simulation,the simulation used the water instead of liquid iron,20~# oil instead of slag to observe the state of the flow.The VOF multiphase flow model and the standard k-εturbulence model were used to simulate gas, oil,water three-phase flow.The flow and splash state were analyzed at different gas velocity of the side-blown lance with two different positions.The results show that under the lower side-blown lance(284mm),the gas content of the oil phase is large,the stirring intensity is big,and the fluctuation of the gas-oil interface and the water-oil interface is obvious.Under the same side lance position(284mm),when flow velocity increased,the disturbance became larger,the degree of mixing of water-oil became greater,the splash became more dramatically.

【关键词】 熔融还原浸入式侧吹多相流Fluent
【Key words】 smelting reductionimmersion side-blownmultiphasefluent
【基金】 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(IRT0739);中国博士后科学基金项目(20080430652)的资助
  • 【会议录名称】 第十三届(2009年)冶金反应工程学会议论文集
  • 【会议名称】第十三届(2009年)冶金反应工程学会议
  • 【会议时间】2009-08-10
  • 【会议地点】中国内蒙古包头
  • 【分类号】TF557
  • 【主办单位】中国金属学会冶金反应工程分会
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