高炉炼铁中煤粉混合器叶片轮结构优化  

Optimization of Blade Wheel Structure of Pulverized Coal Mixer in Blast Furnace

作　　者：程意 高强[1] 李如菊 张保成[1] 闫宏伟[1] CHENG Yi;GAO Qiang;LI Ruju;ZHANG Baocheng;YAN Hongwei(School of Mechanical Engineering,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学机械工程学院,山西太原030051

出　　处：《铸造技术》2018年第7期1477-1480,共4页Foundry Technology

基　　金：国家自然科学基金资助项目(51275487);山西省自然科学基金资助项目(2013011026-2);山西省重点研发计划社会发展项目资助(201603D321117)

摘　　要：参照水轮机叶片轮结构对煤粉混合器的叶片轮进行设计,通过Fluent软件对煤粉混合器内部流场进行数值模拟,并据此对叶片轮的叶片进出口安装角度进行优化,通过CFD-POST软件对数值模拟结果进行后处理,并对叶片轮整体效率进行计算。结果表明,当叶片进出口的安装角分别修正为26°和20°时,叶片轮叶道的引流盲区减小,阻力减小,叶道煤粉流动更加连续顺畅。空气与媒粉的接触面积增大,媒粉混合器的整体效率提高了2%。The blade wheel of the turbine was designed according to the turbine blade wheel structure,numerical simulation of internal flow field of coal dust mixer was conducted with Fluent software.Based on this,the blade inlet and outlet installation angle was optimized,the numerical simulation results were processed by CFD-POST software,and the overall efficiency of the vane wheel was calculated.The results show that when the blade installation angle of the import and export of correction for 26° and 20°,respectively.The leaf blades,the drainage of blind area decreases,and the blade wheel blade channel resistance is reduced,the pulverized coal flow is more continuous smooth.The contact area between air and pollinator is increased,and the overall efficiency of the coal powder mixer is increased by 2%.

关 键 词：煤粉混合器 叶片轮 压能回收 FLUENT 

分 类 号：TF321[冶金工程—冶金机械及自动化]