铁水连续预处理涡流反应器的优化设计研究Ⅰ  

RESEARCH ON OPTIMIZATION DESIGN OF SWIRLING-REACTOR IN CONTINUOUS PRETREATMENT OF HOT METALⅠ

作　　者：刘向军[1] 石洪志[2] 温治[1] 冯俊小[1] 刘双科[1] 尹小东[2] 王妍[2] 

机构地区：[1]北京科技大学,北京100083 [2]宝山钢铁股份有限公司,上海201900

出　　处：《矿冶》2005年第1期78-81,65,共5页Mining And Metallurgy

摘　　要：铁水预处理技术中反应器的设计至关重要。本文采用k-ε湍流模型与颗粒随机轨道模型相结合,建立了铁水、反应剂的两相流动模型;采用数值模拟的方法,研究了涡流反应器内的铁水、反应剂的两相流动特征,揭示了各个几何参数对反应器内两相流动、混合的影响。计算结果表明,对于本文计算工况,反应器的最佳设计值为:α1=55°～40°,h1=0 3～0 4m,h4=(2 5～5 0)d3;d2/d3=0 35～0 20。Reactor designing is a key problem in developing continuous hot-metal pretreatment technology.In this paper,a mathematical model for numerically studying of two-phase hot-metal and particle flow is built.The models include a k-ε two-equation model for turbulent hot-metal flow and a random trajectory model for particle flow.The two-phase flow characteristic in a swirling-reactor was numerically studied,and the effects of each geometrical parameter on the two-phase flow and mixture were determined.The calculated results show that the best geometrical parameters of this type swirling-reactor are:α_1=55°～40°;h_1=0.3～0.4m;h_4=2.5d_3～5.0d_3;d_2/d_3=0.35～0.20.

关 键 词：铁水 预处理 涡流反应器 两相流动 优化设计 

分 类 号：TF704.3[冶金工程—钢铁冶金]