MEng  >> Vol. 2 No. 1 (March 2015)

    铝镇静钢LF低氟精炼渣系的脱硫实验研究
    Experiment Study on Desulfurization of Low-Fluoride LF Refining Slag for Aluminum Killed Steel

  • 全文下载: PDF(394KB) HTML   XML   PP.42-48   DOI: 10.12677/MEng.2015.21007  
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作者:  

徐 昊,王 珏,吴六顺,董元篪:安徽工业大学冶金工程学院,安徽 马鞍山

关键词:
LF精炼脱硫粘度铝镇静钢Li2OLF Refining Desulphurization Viscosity Aluminum Killed Steel Li2O

摘要:

本文采用CaO-Al2O3-SiO2-MgO-CaF2基础渣系,以Li2O替代CaF2,进行铝镇静钢LF脱硫实验。研究结果表明:渣中CaF2经Li2O替代后,在1500℃时,CaO (55.8%)-Al2O3 (20%)-SiO2 (11.2%)-MgO (10%)-Li2O (3%)渣的粘度低于0.3 Pa∙s,渣的流动性能良好;温度1600℃、渣金比1:10时,该渣脱硫率77.14% (脱硫之前采用铝脱氧),钢水硫含量能降到0.008%。随着渣中Li2O含量的增加,脱硫率升高,最高可达80%。

Desulfurization efficiency of CaO-Al2O3-SiO2-MgO-CaF2 slag for Al-killed steel was studied with Li2O replacing CaF2. Experimental results show that at 1500˚C, the viscosity of CaO (55.8%)-Al2O3 (20%)-SiO2 (11.2%)-MgO (10%)-Li2O (3%) slag is lower than 0.3 Pa∙s, having good flow properties; at 1600˚C, under the condition of slag-metal ratio of 1:10, desulfurization rate of the slag can reach 77.14%, and sulfur content in steel decreases to 0.008%. Desulfurization rate can even reach to 80% with Li2O content increasing in slag after composition optimization.

文章引用:
徐昊, 王珏, 吴六顺, 董元篪. 铝镇静钢LF低氟精炼渣系的脱硫实验研究[J]. 冶金工程, 2015, 2(1): 42-48. http://dx.doi.org/10.12677/MEng.2015.21007

参考文献

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