回转窑传热传质数学模型及数值仿真  

Mathematical model of heat and mass transfer of rotary kiln and numerical simulation

作　　者：蒋寿生[1] 肖友刚[2] 雷先明[1] 肖似蹼[1] 

机构地区：[1]邵阳学院机械能源工程系,湖南邵阳422004 [2]中南大学交通运输工程学院,湖南长沙410075

出　　处：《轻金属》2009年第2期13-18,共6页Light Metals

基　　金：湖南省自然科学基金(07JJ6083);湖南省教育厅科研计划(06C758)资助

摘　　要：将回转窑内的传质过程与对流、辐射、传导三种热交换方式相结合,建立了回转窑传热传质过程的数学模型,并对模型进行了数值仿真。结果表明:物料温度随喷料量增加而降低,随喷煤量增加而升高。随着物料温度升高,喷料量、喷煤量的变化对物料温度的影响愈显著。Combined mass transfer with such heat transfer processes as radiation, convection and conductivity in rotary kiln, the mathematical model of heat and mass transfer of rotary kiln was established, and numerical simulation was carried out. The results show that the temperature of materials will go down with the increase of materials injection rate and go up with the increase of coal injection rate. As the temperature of materials goes up, the effect of materials and coal injection rate on material temperature will be more notable.

关 键 词：回转窑 传热传质过程 数学模型 仿真 

分 类 号：TK123[动力工程及工程热物理—工程热物理]