Modeling and industrial test on new type of flow control device for T-shape tundish
CHEN Yuan-qing1,2，QIU Sheng-tao1
（1. National Engineering and Research Center for Continuous Casting Technology， Central Iron and Steel Research Institute， Beijing 100081， China 2. Zhangjiagang Lianfeng Iron and Steel Research Institute Co.， Ltd.，Zhangjiagang 215628， Jiangsu， China）
Abstract：Concerning the fact that ladle shroud cannot strictly point to the center of turbo-stopper in the tundish，based on eight-strand T-shape tundish，3D numerical simulation has been done to illustrate the influence of misalignment to flow field. At the same time，new type of flow control device has been designed and its metallurgical effect has been validated by numerical simulation and industrial test. The results indicate that the offset distance of ladle shroud will worsen tundish flow field. When the offset distance is 50 mm，the turbulence and velocity largely increase on the surface of impact zone，which increases the risk of slag entrapment，and the dead zone rate is 4% larger than that of well alignment. The new type of flow control device can 50% decrease the surface turbulence，which leads to more peaceful surface and less risk of slag entrapment，and the dead zone changes little. And so the purity of steel increases，which is authenticated by industrial test results that the pass percent of B and C inclusions 6% increases respectively.
收稿日期: 2017-12-04
出版日期: 2018-07-24
引用本文:
陈远清，仇圣桃. T形中间包新型控流装置的模拟及试验[J]. , 2018, 53(7): 45-49.
CHEN Yuan-qing，，QIU Sheng-tao. Modeling and industrial test on new type of flow control device for T-shape tundish. Iron and Steel, 2018, 53(7): 45-49.
Liang-cai ZHONG, Ming-an WANG, Bo-yu CHEN, Can-rong WANG, Ying-xiong ZHU.Flow Control in Six-Strand Billet Continuous Casting Tundish With Different Configurations[J].Journal of Iron and Steel Research International, 2010, 17(7):7-12
[4]
Liang-cai ZHONG, Ming-an WANG, Bo-yu CHEN, Can-rong WANG, Ying-xiong ZHU.Flow Control in Six-Strand Billet Continuous Casting Tundish With Different Configurations[J].Journal of Iron and Steel Research International, 2010, 17(7):7-12
[5]
Chandrashekhar DAMLE, Yogeshwar SAHAI.The effect of tracer density on melt flow characterization in continuous casting tundishes ---a modeling study[J].ISIJ International, 1995, 35(2):163-169
[5]
Chandrashekhar DAMLE, Yogeshwar SAHAI.The effect of tracer density on melt flow characterization in continuous casting tundishes ---a modeling study[J].ISIJ International, 1995, 35(2):163-169
2018, Vol. 53 
