摘要
在实验室小型试验炉内,用CaO-Al2O3-SiO2基精炼渣进行了钢水脱硫的试验,主要研究了精炼渣碱度、渣中Al2O3和CaF2对钢水脱硫的影响。结果表明:精炼渣碱度在2.85～3.45时,脱硫率在80%以上;精炼渣中w(Al2O3)=24%时,脱硫率为83.7%;随精炼渣中CaF2含量的增加,脱硫率先增大后降低。最佳精炼渣组成为:w(CaO)/w(SiO2)=3.0、w(CaF2)=7%、w(MgO)=6%、w(Al2O3)=24%。
The experiment on desulfurization of molten steel using CaO-Al2O3-SiO2 based refining slag is carried in a small furnace in the laboratory. The effects of refining slag basicity, Al2O3, CaF2on desulfurization of molten steel are studied. The results show that the dusulfurization rate is over 80 % when the refining slag basicity is changed from 2.85to 3.45. However, when the mass fraction of Al2O3 in refining slag is 24 %, the desulfurization rate is 83.7 %. With the increase of CaF2 in refining slag the desulfurization rate rises initially and then falls down. The optimum composition of the refining slag is w（CaO）/w（SiO2） =3.0, w（CaF2）=7 %、w（MgO）=6 %、w（Al2O3）=24 %.
出处
《炼钢》
CAS
北大核心
2013年第1期48-51,共4页
Steelmaking
基金
国家自然科学基金青年基金项目(50804001)
关键词
钢水
精炼渣
钢包炉
脱硫
molten steel
refining slag
ladle furnace
desulfurization
