活性石灰在炼钢初渣中的熔解研究  

Investigation of active lime liquation in initial slag of steel-making

作　　者：孟金霞[1] 陈伟庆[1] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083

出　　处：《炼钢》2008年第2期54-58,共5页Steelmaking

摘　　要：使用旋转圆柱法研究了石灰煅烧温度、炉渣成分和温度对活性石灰在转炉炼钢初渣中熔解速率的影响。结果表明:1 000℃煅烧的活性石灰熔解速率最大;增加渣中∑FeO含量、较少的MgO含量、较低的炉渣碱度、提高炉渣温度,均有利于活性石灰的熔解。活性石灰在转炉初渣中的熔解过程包括变质解体和扩散溶解,变质解体起主要作用。Influences of lime calcination temperature as well as compositions ano temperature of slag on active lime liquation in initial slag of converter steelmaking are investigated by means of the rotating cylinder method. The results show that liquation rate of active lime calcined at 1 000℃ reaches the highest. Increase of FeO, less MgO content and lower slag basicity, and higher temperature are in favor of active lime liquation in slag. Process of active lime liquation in initial slag of converter contains the surface dissolution and the lime metamorphism disaggregation due to penetration of slag, in which case the latter is crucial.

关 键 词：活性石灰 熔解 炼钢 炉渣 

分 类 号：TF701[冶金工程—钢铁冶金]