铸造技术2016，Vol.37Issue(7)：1442-1445,1455,5.DOI:10.16410/j.issn1000-8365.2016.07.038
浸入式水口侧孔结构对板坯结晶器流场的影响
Effect of Side Hole Structure of Submerged Nozzle on Flow Field in Slab Crystallizer
刘阳 1张彩军 1刘中柱 1刘磊 1乔士宾1
作者信息
- 1. 华北理工大学冶金与能源学院,河北唐山063009
- 折叠
摘要
Abstract
The slab with cross-section size of 850 mm×200 mm,1 150 mm×200 mm and 1 400 mm× 200 mm was conducted as 1∶1 physical simulation.The distribution of internal flow field and slag powder in crystallizer and the surface fluctuation situation were studied through changing structure of submersed nozzle.The results show that when the cross-section of 850 mm×200 mm,the variance of two-hole and three-hole outlet level amplitude are 0.27 and 0.03,a difference of about 10 times.But the three-hole nozzle effectively reduces the drift phenomenon by the flow field pattern.When the cross-section of 1 150 mm×200 mm,the recirculation zone can be formed in 3 s,the area of the recirculation zone has covered 2/3 of two-hole outlet,the protection area of the slag covers 4/5 of the molten steel surface and presents fluctuating situation.While the covered area of recirculation zone is only 1/5 of three-hole outlet,fluxes completely coveres and the surface fluxes fluctuations is not obvious.Therefore,the two-hole outlet is super to the three-hole outlet,and the slag powder is easier to melt flux.关键词
两孔/三孔/流场/保护渣/波幅Key words
two holes/three holes/flow field/flux/volatility分类
矿业与冶金引用本文复制引用
刘阳,张彩军,刘中柱,刘磊,乔士宾..浸入式水口侧孔结构对板坯结晶器流场的影响[J].铸造技术,2016,37(7):1442-1445,1455,5.
