稀薄气体在高温烧结矿中燃烧的数值模拟  

Combustion numerical simulation of rarefied gas in high temperature sintering ore

作　　者：张文闻[1] 张忠孝[1] 毕德贵[1] 

机构地区：[1]上海理工大学能源与动力工程学院,上海200093

出　　处：《洁净煤技术》2012年第6期76-79,共4页Clean Coal Technology

摘　　要：基于计算流体力学软件FLUENT,对烧结机不同位置风箱所抽烧结废气当中含有的可燃物质(主要为烃类、H2、CO)采用环冷机上高温熟料燃尽的手段进行数值模拟,得出了6种不同配比的CH4,CO及H2在600,500,400℃的烧结矿温度下分别对应的各自可以燃尽所需的料层厚度。分析了各种组分在改变温度、物质的量分数和料层厚度的情况下燃烧的变化规律,试验结果为烧结生产的余热回收和污染物减排提供了参考。With the help of software FLUENT, numerically simulate the combustion of hydrocarbon, n2, CO, which are exhaust gas gathering from different points of sintering machine. The simulation is operated on ring cold machine and the high temperature clinker burn out at last. Taking 6 kinds of combination of CH4, CO, H2 as samples, investigate the proper sinter thickness which support the mixture gas completely burn out at 600,500,400 ℃. Research the combustion law under different temperature, mole fraction of each gas and sinter thickness. The research could provide reference for waste heat recovery and exhaust gas reduction during sintering process.

关 键 词：烧结矿 多孔介质 稀薄气体 数值模拟 

分 类 号：TK411.25[动力工程及工程热物理—动力机械及工程]