铝酸钙脱硫渣系的实验研究
Experimental Research on Calcium Aluminate Desulphurizer Slags
袁守谦1, 郭 强1, 王 伟1, 梁德安2
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作者单位:(1.西安建筑科技大学 冶金工程学院,陕西 西安 710055;2.振德窑业有限责任公司,河南 焦作454001)
中文关键字:脱硫剂; 铝酸钙预熔渣; 脱硫率; 硫含量
英文关键字: desulphurizer; calcium aluminate premelted slag; desulfurization degree; S content
中文摘要:在实验室的条件下,对用CaO、Al2O3、CaF2为原料配制的钢水脱硫剂进行了实验研究。研究发现,增加预熔脱硫剂量,可提高脱硫速度,增大脱硫率。提高钢水温度可以增大脱硫效率,在1620 ℃下,10 min就可将钢液中的硫降低到0.026wt%的较低水平。添加CaO的铝酸钙预熔渣的脱硫效果明显优于纯12CaO·7Al2O3渣系,加氧化钙含量为10wt%时,整体脱硫效果最好。此预熔合成渣原料将可能成为一种高效、快速、环保的脱硫剂。
英文摘要:The desulphurizer of CaO-Al2O3-CaF2 was researched in laboratory. The results show that increasing the contents of pre-melted desulphurizer can increase the velocity and ratio of desulfurization. In the meanwhile, elevating temperature of liquid steel can increase desulfurization degree; the S-content can decrease to a relative low level(0.026wt%) in 10 minutes at 1620℃. The desulphurization effect using calcium aluminate desulphurizer slags with CaO is superior to that using pure 12CaO·7Al2O3 slag, while the additive amount of CaO is 10wt%, the desulphurization effect is best. Therefore the calcium aluminate desulphurizer slags with CaO can be used as a high efficient, high speed and an environmental friendly desulphurizer.