十机十流小方坯连铸中间包流场模拟与优化研究  

Flow Field Simulation and Optimization of Ten-Strand Tundish for Billet Continuous Casting

作　　者：杨飞 王宝 李思佳 胡文 潘建平 Yang Fei;Wang Bao;Li Sijia;Hu Wen;Pan Jianping(Steelmaking Plant of Guangxi Iron and Steel Group Co.,Ltd.,Fangchenggang Guangxi 538002,China;Key Laboratory of Ferrous Metallurgy and Resources Utilization of Ministry of Education,Wuhan University of Science and Technology,Wuhan Hubei 430081,China;Zhejiang Hongying Group Co.,Ltd.,Huzhou Zhejiang 313000,China)

机构地区：[1]广西钢铁集团有限公司炼钢厂,广西防城港538002 [2]武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北武汉430081 [3]浙江红鹰股份集团有限公司,浙江湖州313000

出　　处：《山西冶金》2024年第9期8-11,共4页Shanxi Metallurgy

摘　　要：为改善中间包钢液的流场分布,减小死区体积,提高夹杂物上浮效果,采用物理模拟与数值模拟相结合的方法对十机十流中间包不同内部结构下的钢液流场和温度场特征进行优化研究。研究结果表明:与冲击区护墙相比,采用湍流抑制器与挡墙组合,扩大了冲击区的体积,有效减轻冲击区钢液的湍动能,显著改善了中间包内钢液的流场和温度分布。其中,采用双导流孔长挡墙(四杆支撑)+湍流抑制器的控流方式,中间包内钢液的平均停留时间为820 s,死区比例为13.03%,各流出口钢液温差为1.2℃,效果最优。In order to enhance the distribution of the liquid steel flow field within the tundish,reduce the volume of the dead zone and improve the efficacy of inclusions removal,a combination of physical and numerical simulation is employed to optimize the characteristics of the liquid steel flow field and temperature field under different internal structures of ten-strand tundish.The results demonstrate that in comparison to the impact zone retaining wall,the combination of a turbulence inhibitor and a baffle wall with deflector holes enlarges the volume of the impact zone,effectively reduces the turbulence energy of the liquid steel in the impact zone,and significantly improves the flow field and temperature distribution of the liquid steel in the tundish.The average residence time of the liquid steel in the tundish was found to be 820 seconds,with a dead zone percentage of 13.03%.Additionally,the temperature difference of the liquid steel in each flow outlet was observed to be 1.2 ℃,which represents the optimal effect of the baffle wall with double deflector holes(supported by four rods) and turbulence inhibitor.

关 键 词：中间包 控流装置 流场 物理模拟 数值模拟 

分 类 号：TF777.1[冶金工程—钢铁冶金]