摘要
为了确定LF精炼过程中顶渣的脱硫能力,通过对光学碱度的计算,得出了1627℃时CaO SiO2 Al2O3 MgO(5%)渣系组成与硫容量的关系图。由硫容量、氧活度(与钢中溶解铝平衡值)计算出硫分配比,绘出了不同硫分配比时脱硫率与渣量的关系图,提出了一个由已知渣组成、渣量、钢液氧活度和硫含量来计算LF精炼过程中最大脱硫率的简便方法。
In order to determine desulfurising ability of the top-slag in LF refining process, the variation of sulfide capacity with composition in the slag system CaO-SiO_2-Al_2O_3-MgO (5%) at 1 627 ℃ was illustrated by means of calculating the optical basicity. From the sulfide capacity and oxygen activity which is in equilibrium with aluminium dissolved in steel, the sulfur distribution ratio could be calculated. The relations between percentage of sulfur removal and amount of slag for various sulfur distribution ratio were also illustrated. One of the most convenient method for obtaining a maximal percentage of sulfur removal in LF refining process might be offered, if the composition and amount of slag as well as the oxygen activity and sulfur content in steel were known.
出处
《钢铁研究学报》
CAS
CSCD
北大核心
2004年第3期23-26,共4页
Journal of Iron and Steel Research
关键词
硫容量
硫分配比
脱硫率
LF精炼
sulfide capacity
sulfur distribution ratio
sulfur removal percentage
LF refining
