Characteristics of Iron Droplet Ejection Caused by Gas Bubble Bursting Under Reduced Pressure

被引：2
|
作者：
Lin Ping [1 ,2 ]
Wang Fu-li [1 ]
Liu Liu [2 ]
He Qing [2 ]
机构：
[1] Northeastern Univ, Inst Automatizat, Shenyang 110004, Liaoning, Peoples R China
[2] Cent Iron & Steel Res Inst, Met Proc Div, Beijing 100081, Peoples R China
来源：
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL | 2010年 / 17卷 / 01期
关键词：
bubble bursting; droplet ejection; reduced pressure; vacuum refining; MODEL; MASS;
D O I：
10.1016/S1006-706X(10)60036-2
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Bursting of gas bubbles on the free surface of liquid iron produces iron droplets that are ejected into the surrounding atmosphere. The influence of the freeboard pressure on gas bubble bursting was investigated by collecting and measuring the formed droplets in water and in liquid iron systems. In water model, it was found that gas bubbles expanded markedly during the floating up when the freeboard was evacuated but the influence of the freeboard pressure on the mass of ejection is not significant when the freeboard pressure varied from 0.01 to 0.1 MPa. Besides, in steel melt, the mass of ejection was increased by 2-3 times when the pressure was reduced from atmospheric pressure to 66.5 Pa.
引用
收藏
页码：7 / +
页数：6
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