中南大学学报（自然科学版）2017，Vol.48Issue(1)：1-8,8.DOI:10.11817/j.issn.1672-7207.2017.01.001
烧结矿余热回收竖罐内气体的流动特性
Gas flow characteristics in vertical tank for sinter waste heat recovery
摘要
Abstract
The dimensionless method of Ergun's type equation was used to investigate pressure drop and flow regime of gas flow through bed layer.The effects of gas superficial velocity and sinter particle diameter on pressure drop and flow regime were studied.The results show that for a given particle diameter,pressure drop of unit bed layer height in sinter bed layer increases as a quadratic relationship with increasing gas superficial velocity.For a given gas superficial velocity,pressure drop of unit bed layer height increases as an exponential relationship with the increase of particle diameter.Experimental correlation is proposed for predicting the change of critical particle Reynolds number with particle equivalent diameter,and the deviation of the correlation is within ±5％.Experimental correlations are proposed for predicting pressure drop of Forchheimer zone and Turbulence zone in bed layer,and the deviations of the correlations are all within ±8％,showing good prediction.关键词
烧结/填充床/压力降/流态/临界雷诺数Key words
sinter/packed bed/pressure drop/flow regime/critical Reynolds number分类
能源科技引用本文复制引用
冯军胜,董辉,李含竹,高建业..烧结矿余热回收竖罐内气体的流动特性[J].中南大学学报（自然科学版）,2017,48(1):1-8,8.基金项目
国家自然科学基金资助项目(51274065) （51274065）
辽宁省科技计划项目(2015020074-201) (Project(51274065) supported by the National Natural Science Foundation of China （2015020074-201）
Project(2015020074-201) supported by the Science and Technology Planning Foundation of Liaoning Province,China) （2015020074-201）
