120t复吹转炉溅渣动力学冷态模拟及应用  

Cold-model simulation and application of slag splashing in 120 t top-bottom combined blowing converter

作　　者：潘贻芳[1] 赵宏欣[1,2] 吴燕[3] 李树庆[1] 侯葵[1] 张玉海[1] 王宝明[1] 袁章福[3] 

机构地区：[1]天津钢铁集团有限公司技术中心,天津300301 [2]中国科学院过程工程研究所,北京100190 [3]北京大学工学院能源与资源工程系,北京100871

出　　处：《炼钢》2013年第3期1-5,共5页Steelmaking

基　　金：国家自然科学基金项目(51174008;21106167);天津市重大科技攻关项目(07ZCKFGXD3800);博士后科学基金资助项目(2012M510552)

摘　　要：以120 t顶底复吹转炉为原型进行溅渣动力学冷态模拟研究,通过顶吹气体流量、熔渣黏度、枪位和留渣量的单因素试验及正交试验,得到各因素对溅渣的不同影响。使用极差和方差分析确认各因素对炉衬的溅渣密度影响顺序为:顶吹气体流量>熔渣黏度>枪位>留渣量,并得到最优化试验方案为溅渣枪位160 mm,顶吹气体流量51 m3/h,熔池留渣量12%,熔渣黏度0.000 89 Pa.s,此时所得溅渣密度为23.07 g/(m2.s)。该结果在天津钢铁集团有限公司得到应用,取得了很好的经济效益和冶金效果。Cold-model simulation experiments on slag splashing in a 120 t top-bottom combined blowing converter were carried out. By measuring singer factors （e. g. top- blowing gas flowrate, slag viscosity, lance height and slag amount）, along with orthog- onal test, the optimal parameters were obtained. The order of the factor that affect slag splashing was obtained through the range and variance analysis, which is top-blowing gas flowrate 〉 slag viscosity 〉 lance height 〉 slag amount. Finally, the optimized ex- perimental program is that： lance height is 160 mm, top-blowing gas flowrate is 51 m3/h, slag amount is 12 %, slag viscosity is 0. 000 89 Pa.s,and the splashing density obtained is 23.07 g/（m2 .s）. It is applied in Tianjin Iron and Steel Group Co. ,Ltd. , and satisfied result is achieved.

关 键 词：转炉 溅渣 冷态模拟 顶底复吹 动力学 

分 类 号：TF748.2[冶金工程—钢铁冶金]