摘要
建立了冶炼铁水倾倒过程数学模型,对铁水倾倒过程进行CFD仿真,探究了钢包内壁倾角θq和初始铁水量V c对铁水倾倒过程中流场、温度场、相界面的影响。仿真结果表明:铁水的温度逐渐降低,铁水的流速先增加后减小。θq的增加使铁水倾倒路径更倾斜,铁水流速增加;V c的增加使铁水流出钢包时间提前、铁水流速增加、流动路径复杂,出现涡流和湍流,转炉内高温区域增大,增加了高温气体从转炉口溢出的量。为了既提高生产效率又保证生产安全,以θq为7°和V c为80%V Q进行铁水倾倒为佳。
A mathematical model of the pouring process is first established,and the molten iron pouring is simulated in Fluent software.The effects of the ladle inner wall tilt angleθq and the initial molten iron volume V c on the temperature,velocity and phase interface are explored.The simulation results show that the temperature of the molten iron gradually decreases,and the velocity of the molten iron increases initially and then decreases.An increase inθq leads to a more inclined pouring path,increases flow velocity;an increase in V c advances the pouring time,velocity,enlarges the high-temperature area inside the converter,complicates the flow path and brings vortex and turbulence.An increase in the high-temperature area in the converter will lead to an increase in the amount of high-temperature gas escaping from the converter.To ensure both efficiency and safety,values ofθq at 7°and V c at 80%V Q are optimal.
作者
韩红安
陈江义
于海洋
周荷花
邵景干
贺占蜀
秦超
Han Hong'an;Chen Jiangyi;Yu Haiyang;Zhou Hehua;Shao Jinggan;He Zhanshu;Qin Chao(Henan Key Laboratory of Hoisting and Logistics Equipment,Henan Weihua Heavy Machinery Co.,Ltd.,Henan Xinxiang,453499,China;School of Mechanical and Power Engineering,Zhengzhou University,Henan Zhengzhou,450001,China;Henan Jiaoyuan Engineering Technology Group Co.,Ltd.,Henan Zhengzhou,450005,China)
出处
《机械设计与制造工程》
2024年第9期33-38,共6页
Machine Design and Manufacturing Engineering
基金
河南省科技研发计划联合基金(产业类)项目(225101610073)
河南省重点研发专项(221111220600)。
关键词
铁水倾倒
数学模型
流场
温度场
钢包
molten iron pouring process
mathematical model
flow field
temperature field
ladle
