高炉内液体流动特征的数学描述  

A mathematical description of the liquid flows inside blast furnaces

作　　者：王成善[1] 肖兴国[2] 王文忠[2] 

机构地区：[1]重庆大学材料科学与工程学院,重庆400030 [2]东北大学材料与冶金学院,辽宁沈阳110004

出　　处：《重庆大学学报（自然科学版）》2009年第4期381-386,共6页Journal of Chongqing University

基　　金：国家自然科学基金资助项目(50704040)

摘　　要：高炉内液体流动现象的研究对高炉工艺的控制与开发、炼铁工艺模拟具有重要意义。针对液流由非润湿液滴组成、惯性力对运动影响可忽略、液流沿垂直于速度的方向散开等高炉内液体运动的特点,分别给予较合适的数学描述,建立了一个可预测高炉内液流分布和液体流动范围的数学模型。该数学模型数值求解网格尺度仅满足数值精度即可,不必和床层填充颗粒尺寸相一致。模型预测结果和实验数据有较好的一致性。高炉模拟中该模型是一个可供选择的模型。The knowledge of liquid flows in blast furnaces may play an important role in controlling the blast furnace process. Appropriate assumptions are given to represent the main characteristics of the liquid flow in blast furnaces, such as liquid streams being composed of unwetting liquid droplets, inertial force having little effect on the liquid flows, and mass exchange existing along the direction perpendicular to liquid flow. A mathematical model is built to predict the distribution of the liquid flow rate and the liquid flow range in packed beds. The scale of the numerical grid used to solve this model may not necessarily be reduced to the particle level. The predicted results of this model accord well with the observed data. This model is an alternative theory for the simulation of blast furnaces.

关 键 词：炼铁 高炉 填充床 液体流动 数学模型 

分 类 号：TF532[冶金工程—钢铁冶金]