底吹方式对渣-钢界面影响规律的水模型 water model about effect of bottom blowing on slag-steel interface.pdfVIP
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底吹方式对渣-钢界面影响规律的水模型 water model about effect of bottom blowing on slag-steel interface
第 51 卷 第 8 期 钢 铁 Vol.51,No.8,p29-34
2 0 1 6 年 8 月 Iron and Steel August 2016
DOI :10.13228/j.boyuan.issn0449-749x
底吹方式对渣-钢界面影响规律的水模型
刘小亮, 曾加庆, 王 杰, 戴诗凡, 杨利彬, 姚同璐
(钢铁研究总院冶金工艺研究所,北京 100081)
摘 要:利用水模试验方法模拟底吹方式对转炉吹炼过程中渣-钢界面搅拌与传质效果的影响,研究底吹强度、底
吹枪个数等因素对渣-钢界面搅拌与传质的影响规律。试验研究结果表明,由于底吹搅拌作用,使渣-钢间传质速率
呈规律性变化。不同底吹枪个数与底吹搅拌强度的组合,存在渣-钢界面传质速率的最大值。单支底吹枪的底吹强
3
度为0.020~0.025 m / (t ·min )时,渣-钢间传质速率最大。
关键词:水模型;渣-钢间传质速率;底吹强度;底吹枪数
文献标志码:A 文章编号:0449-749X (2016 )08-0029-06
Water model about effect of bottom blowing on slag-steel
interface
LIU Xiao-liang , ZENG Jia-qing ,WANG Jie , DAI Shi-fan ,YANG Li-bin ,YAO Tong-lu
(Metallurgical Technology Institute ,Central Iron and Steel Research Institute ,Beijing 100081,China)
Abstract :By using water model to simulate the effect of bottom blowing on turbulence and mass transfer at the slag-
steel interface during LD process,the current study aimed to investigate the effects of the gas flow rate and the number
of bottom nozzles on the mass transfer and interface turbulence between slag and steel. The results showed that the mass
transfer rate between slag and steel changed regularly under different conditions of bottom stirring. The study obtained
the maximum mass transfer rate with the combination of the number of bottom nozzles and the gas flow rate. It also
showed that the mass transfer rate can reach the maximum if the bottom blowing intensity of individual nozzle was
3
0.020-0.025 m / (t ·min ).
Key words :water model ;mass transfer rate at slag-steel interface ;bot
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