摇包内两相流动的冷态模拟试验  

SIMULATION EXPERIMENTS ON TWO-PHASE FLOWS IN SHAKING LADLE

作　　者：章俊[1] 储少军[1] 倪善强[1] 李忠思[1] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京中国100083

出　　处：《铁合金》2009年第5期38-41,共4页Ferro-alloys

摘　　要：随着钢铁企业对中碳锰铁和中碳铬铁需求的扩大,摇包精练工艺在铁合金行业的应用已越来越广泛。实验采用冷态模拟试验研究了不同偏心距、油水体积比条件下,摇包内油水两相运动状态随转速的变化。实验结果表明,在同一摇包直径和偏心距条件下,随着摇包转速的提高,油水界面运动状态经历了平摆、荷叶型以及卷水乳化三个阶段。其中卷水乳化阶段是摇包实现充分搅拌以加速传质的最佳界面运动状态。同时,偏心距越大,油水体积比越小,达到油水两相卷水乳化运动状态的临界转速越小,反之亦然。With the increase of the need for the MCMnFe ＆ MCCrFe, the applying of the shaking ladle process is also adapted by more and more ferroalloy enterprises. Changing the speed of rotation, the phenomenon of the oil -water interface motion is investigated at different eccentric distance and Voil/Vwater. The results show that on the same ladle diameter and eccentric distance, with the increase of the speed of rotation, the Oil/Water interface motion is changed from oscillatory motion, lotus-leaf state motion to the emulsifying state motion. Among the three states, the emulsification state is the required movement with the full agitation and fast mass transfer speed. The more the eccentric distance and the Voil/Vwater, the less the critical speed of rotation, and vice versa.

关 键 词：摇包 两相流动 水模 乳化 

分 类 号：TF642[冶金工程—钢铁冶金]