铝矾土替代萤石对精炼渣脱硫去夹杂性能影响的实验研究
Study on the Effect of Desulfurization and Removing Inclusions by Making Refining Slag Using Bauxite Instead of Fluorite

DOI: 10.12677/MEng.2016.32008, PP. 51-56

Keywords: 铝矾土，精炼渣，脱硫，夹杂物
Bauxite, Refining Slag, Desulphurization, Inclusion

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Abstract:

本文以CaO-Al₂O₃-SiO₂-MgO-CaF₂基础精炼渣系，通过加入铝矾土等量取代CaF₂，研究铝矾土替代萤石对精炼脱硫效果的影响。实验结果表明：铝矾土替代萤石造渣对钢液脱硫有良好的效果，碱度的增加和适量的铝矾土加入量，能够提高精炼渣的脱硫率，当CaO/SiO₂的比值在11~12，铝矾土的含量在4%~5%时，脱硫效果最佳，可达到80%以上；实验渣对钢中夹杂物的改性和去除也有良好的效果。
In the study, the effect of bauxite instead of fluorite acting as flux in CaO-Al₂O₃-SiO₂-MgO refining slag on desulfurization efficiency was researched. The result shows bauxite replacing fluorite im-proves desulphurization efficiency. In a certain range, the addition of bauxite can reduce the con-tent of sulfur in liquid steel. When the CaO/SiO₂ ratio ranges from 11 to 12, and the content of bauxite is 4% - 5%, the desulfurization effect is best and can reach more than 80%. Besides, the slag has better property of modifying and removing inclusions.

References

[1]	耿涛, 邹长东, 等. 铝矾土代替萤石造精炼渣的可行性研究[J]. 上海金属, 2013, 35(4): 24-28.
[2]	俞林. 铝矾土精炼造渣试验研究[M]. 西昌: 攀钢集团西昌钢钒有限公司炼钢厂.
[3]	姜周华, 李阳, 姜茂发, 等. 精炼渣成分对钢中夹杂物影响的实验研究[C]. 2003年中国钢铁年会论文集, 222- 226.
[4]	高泽平. 炉外精炼教程[M]. 北京: 冶金工业出版社, 2011: 120-125.
[5]	雷亚, 杨治立, 等. 炼钢学[M]. 北京: 冶金工业出版社, 2010: 45-50.
[6]	战东平, 姜周华, 王文忠, 等. CaO-Al2O3-CaF2-MgO-SiO2五元预熔渣系钢水深脱硫实验研究[J]. 炼钢, 2002, 18(6): 33.

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