铁浴式熔融还原炉侧吹喷枪的水力学模拟  

Experimental Study on Side-blowing Nozzles in Smelting Reduction Furnace with Water Model

作　　者：尹德友[1] 冯孔方[1] 程伟玲[1] 王波[1,2] 毛建军[1] 谢金印 张捷宇[1] 郑少波[1] 洪新[1] 

机构地区：[1]上海大学上海市现代冶金与材料制备重点实验室,上海200072 [2]内蒙古科技大学材料与冶金学院,内蒙古包头014010

出　　处：《过程工程学报》2010年第S1期83-87,共5页The Chinese Journal of Process Engineering

基　　金：国家科技支撑计划资助项目(编号:2006BAE03A12);长江学者和创新团队发展计划资助项目(编号:IRT0739)

摘　　要：通过对铁浴式熔融还原炉的水力学模拟,研究了双排侧枪的侧吹角度、插入深度、侧吹流量以及侧吹位置对熔融还原炉内混匀时间的影响.改变上排侧吹实验的结果表明,熔池内的混匀时间随着侧吹角度的增加呈增加的趋势,随插入深度和喷吹流量的增加呈减小的趋势.改变下排侧吹实验的结果表明,熔池内的混匀时间随着侧吹角度和插入深度的增加呈减小趋势,随着喷吹流量的增加呈减小的趋势.通过比较混匀时间和喷溅量的大小,得到本实验条件下最佳的实验参数:在熔融还原炉的氧化区,即上排侧枪参数为插入深度50mm、与水平方向角度15°、流量9m3/h、侧吹在油层中的位置为1/3处最佳;在熔融还原炉的还原区,即下排侧枪参数为插入深度130mm、与水平方向的角度45°、流量9m3/h最佳.The effects of side-blowing nozzle degree,inserting depth,side-blowing nozzle flow rate and location on mixing time in iron bath of smelting reduction furnace were studied with water model.The experimental results with changing upside nozzles showed that the mixing time in bath increased with expanding side nozzle degree,and the mixing time was reduced with inserting depth and flow rate.The experimental results with changing downside nozzles showed that the mixing time in bath decreased with increasing side-blowing degree and inserting depth,and the mixing time increased with raising flow rate.Comparing the quantities of mixing time and spraying,the optimal conditions obtained through the orthogonal experiments were listed as follow:in the oxidation layer in the slag zone,the inserting depth was 50 mm,the horizontal angle 5°,the flowrate 9 m3/h and the blowing position at 1/3 of the side-wall oil,and in the reduction zone in the slag layer,the insertion depth was 130 mm,the horizontal angle 45°,and the flowrate 9 m3/h.

关 键 词：熔融还原 水力学模型 混匀时间 侧吹喷枪 

分 类 号：TF557[冶金工程—钢铁冶金]