Structure Optimization Design of Ladle Shroud in 135 t Ladle
Author of the article:DENG Shiyun;WANG Xuewu;ZHANG Hua;FANG Qing
Author's Workplace：Zhengye Engineering&Investment Incorporation Limited,Guiyang550000,China;Key Laboratory for FerrousMetallurgy and Resources Utilization of Ministry of Education,Wuhan University of Science and Technology,Wuhan430081,China
Key Words：ladle shroud nozzle structure optimization opening coefficient flow condition
Abstract：
Aiming at the problem that the casting flow diverged and the purity of molten steel decreased in the pouring process of 135 t ladle in a steel workshop,the structure of the ladle shroud nozzle was optimized and designed.The liquid-gas phase of the ladle shroud nozzle was simulated numerically.The flow state of molten steel at the outlet and outlet under the conditions of 100%,70%and 30%pouring openings was compared.The results show that when the opening degree of ladle shroud nozzle is large,the optimized nozzle is easy to form beam outflow,the flow is stable,the velocity of molten steel is small,and the contact time between molten steel and gas phase is reduced,which is beneficial to improve the purity of molten steel and the service life of the ladle shroud nozzle.
