A MODEL STUDY OF RESIDENCE TIME OF METAL DROPLETS IN THE SLAG IN BOF STEELMAKING

被引：35
|
作者：
HE, QL
STANDISH, N
机构：
[1] Department of Materials Engineering, The University of Wollongong, Wollongong
来源：
ISIJ INTERNATIONAL | 1990年 / 30卷 / 05期
关键词：
droplets; residence time; steelmaking;
D O I：
10.2355/isijinternational.30.356
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Residence time of metal droplets generated by an oxygen jet impinging on molten bath surface in the slag was investigated in a 3-D two phase (mercury/glycerine) model. The residence time (τ = Q2/q1) was obtained from measurements of the amount of emulsified mercury in glycerine at steady state (Q2) and the drop generation rate (q1). It has been found that the mean residence time increases with increasing top gas flow rate and decreases with increasing bottom gas flow rate. Also, it increases at first and then decreases with increasing lance height. Maximum mean residence time was achieved at a certain lance height. © 1990, The Iron and Steel Institute of Japan. All rights reserved.
引用
收藏
页码：356 / 361
页数：6
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