摘要
基于Fluent软件,将流动的熔分赤泥看作连续的黏性流体,对熔分赤泥离心过程进行数值模拟,研究了熔分赤泥熔体速度和离心机转速对离心辊面不稳定波及液丝的形成与分离的影响规律。数值模拟结果表明:要有足够的熔分赤泥供给与气液相对速度才能形成不稳定波;熔体速度的提升有益于离心辊面液膜不稳定波形成;离心机转速越大所形成的液丝越长,直径越小,最佳方案的熔体速度为15 m/s,离心机转速为60 r/s。
Based on Fluent software,the flowing melting-separation red mud was regarded as continuous viscous fluid,and the centrifugal process of melting-separation red mud was numerically simulated.The influence of melt velocity of melting-separation red mud and centrifuge speed on the instability of centrifugal roll surface and the formation and separation of liquid wire was studied.The numerical simulation results show that the unstable wave can be formed only if the supply of melted red mud and the relative velocity of gas and liquid are sufficient;the increase of melt velocity is beneficial to the formation of unstable wave of liquid film on the centrifugal roller surface;The longer the liquid filament is,the smaller the diameter is.The melt velocity of the optimal solution is 15 m/s and the centrifuge speed is 60 r/s.
作者
赵鹏越
杜培培
邱明伟
龙跃
ZHAO Peng-yue;DU Pei-pei;QIU Ming-wei;LONG Yue(Department of Metallurgy and Energy,North China University of Science and Technology,Tangshan Hebei 063210,China;Institute of Metallurgy,Northeastern University,Shenyang Liaoning 110819,China)
出处
《华北理工大学学报（自然科学版）》
CAS
2022年第2期53-59,67,共8页
Journal of North China University of Science and Technology：Natural Science Edition
基金
国家自然科学基金项目(5187041349)。
关键词
熔分赤泥
纤维化
不稳定波
数值模拟
液膜
液丝
melting-separation red mud
fibrosis
unstable wave
numerical simulation
liquid film
liquid silk
