电弧炉底吹搅拌混合特性的水模型研究  

Water Model Research of Homogenous Mixing Characteristics in Bottom Stirring EAF

作　　者：姜茂发[1] 李连福[1] 

机构地区：[1]东北大学钢铁冶金系

出　　处：《东北大学学报（自然科学版）》1996年第4期352-355,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金

摘　　要：用实炉为３０ｔ电孤炉，缩尺为１：７的水模型测定了底吹气体流量、喷嘴孔径及孔数，喷嘴布置方式、液体深度对溶液均匀混合时间的影响．结果表明，底吹气体搅拌能密度增大，溶液均匀混合时间短，二者间的关系可用回归方程τ＝ｋε－ｎ表示，搅拌能密度相同时，均匀混合时间随喷吹点的增加而缩短，最佳喷吹点为中心圆及电极圆４孔，最佳喷嘴孔径为１．０～１．５ｍｍ；均匀混合时间随溶液深度的降低而缩短．Water model(1: 7 scale of 30 t electric arc furnace) is used to determine the effect of bottom stirring gas flowrate,diameter and number of nozzle and nozzle arragement on solution homogenous mixing time. Results indicate that mixing time of solution is decreased with increasing of gas stirring energy density,the relations of them can ha expressed as τ=ε-n,keeping stirring energy density constant,mixing time will be decreased with increasing number of stirring element,the optimum stirring pattern is center+electrode circle 4 elements and the optimum diameter of nozzles is 1. 0￣1. 5 mm,mixing time is also decreased with increasing bath height.

关 键 词：电弧炉 水模型 底吹搅拌 混合特性 炼钢 

分 类 号：TF741.5[冶金工程—钢铁冶金]