提高同侧出钢钢包自开率的研究  

Improvement of free-opening rate of ladle tapping at the same side

作　　者：黄燕飞[1] 杜丕一 李友胜[2] 郑卫民[3] 叶俊辉[3] 

机构地区：[1]浙江大学硅材料国家重点实验室,杭州310027 [2]武汉科技大学高温陶瓷与耐火材料湖北省重点实验室 [3]杭州钢铁集团公司转炉炼钢厂技术科

出　　处：《耐火材料》2006年第6期433-436,共4页Refractories

摘　　要：通过对钢包自开的原理进行理论分析,显示钢水冻结层和渗透层厚度是影响钢包自开率的主要因素。结合工厂实际情况,采用硅铬质引流砂,研究了影响同侧放钢时钢包自开率的主要因素:放钢时出钢口与钢包水口的位置关系、引流砂中的钠长石及石墨含量等。通过将出钢口左侧偏离中心角6°,引流砂中的石墨外加量调至2%,钠长石外加量调至0.75%～1%,钢包自开率能稳定在95%左右。The thicknesses of steel frozen layer and penetrated layer are the key factors to the ladle free-opening rate by theortical analysis. The effects of the main factors （the location relation between tapping nozzle and ladle nozzle,the contents of albite and graphite in silica-chrome ladle sand） on the free-opening rate of ladle tapping at the same side were studied according to the practical operation. The ladle free-opening rate can be kept about 95% by deflecting tapping nozzle 6°from the center angle to the left and adding about 2% graphite and 0.75% -1% albite.

关 键 词：钢包 引流砂 自开率 

分 类 号：TF748.41[冶金工程—钢铁冶金]