Dispersive bubble wall—a new method of flow control in tundish  

作　　者：Fuping Tang Yanping Bao Wei Jiang Taiquan Li 

机构地区：[1]Metallurgical and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China [2]Anshan Iron and Steel Co., Anshan 114021, China [3]Editorial Board of Journal of University of Science and Technology Beijing, Beijing 100083, China

出　　处：《Journal of University of Science and Technology Beijing》2005年第6期500-503,共4页北京科技大学学报（英文版）

基　　金：This work is financially supported by the National Natural Science Foundation of China (No. 50274007).

摘　　要：Tundish is the last refractory vessel in the steelmaking process. The fluid flow phenomena in tundish have a strong influence on the separation of non-metallic inclusions. The dispersive bubble wall （DBW） is a new method in tundish metallurgy. A water model of a multi-strand tundish has been set up based on the Froude number and Reynold number similarity criteria. The effect of DBW＋weir on the flow pattern has been studied. The results show that this new structure of DBW＋weir is beneficial not only to uniform the temperature among different submerge entry nozzles but also to separate non-metallic inclusions from liquid steel. The DBW can capture the particles of non-metallic inclusions and make them float up to the surface.Tundish is the last refractory vessel in the steelmaking process. The fluid flow phenomena in tundish have a strong influence on the separation of non-metallic inclusions. The dispersive bubble wall （DBW） is a new method in tundish metallurgy. A water model of a multi-strand tundish has been set up based on the Froude number and Reynold number similarity criteria. The effect of DBW＋weir on the flow pattern has been studied. The results show that this new structure of DBW＋weir is beneficial not only to uniform the temperature among different submerge entry nozzles but also to separate non-metallic inclusions from liquid steel. The DBW can capture the particles of non-metallic inclusions and make them float up to the surface.

关 键 词：TUNDISH fluid flow dispersive bubble wall water model 

分 类 号：TF703[冶金工程—钢铁冶金]