中南大学学报（自然科学版）2017，Vol.48Issue(4)：867-872,6.DOI:10.11817/j.issn.1672-7207.2017.04.003
烧结矿余热回收竖罐内流动阻力特性
Flow resistance characteristics in vertical tank for sinter waste heat recovery
摘要
Abstract
Based on dimensional analysis method, the flow resistance characteristics in sinter packed bed of different particle diameters were investigated experimentally. The results show that, for a given particle diameter, pressure drop of unit bed layer height in sinter bed layer increases as a nonlinear relationship with increasing particle superficial velocity. For a given particle superficial velocity, the flow resistance loss is larger in bed layer of smaller particle diameter due to the larger particle specific surface area. At low Rep, particle friction factor fp in bed layer decreases rapidly with the increase of Rep;at high Rep, with the increase of Rep, fp decreases more slowly, and finally does not change. Due to the large calculation error, the existing prediction correlations are not suitable to solve the flow resistance loss in sinter bed layer. The experimental correlation obtained by fitting experimental data is used for describing the flow resistance characteristics in sinter bed layer, and the average calculation relative error of the experimental correlation is 7.93%, showing good prediction.关键词
烧结矿/填充床/压力降/颗粒雷诺数/颗粒摩擦因子Key words
sinter/packed bed/pressure drop/particle Reynolds number/particle friction factor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流动阻力特性[J].中南大学学报（自然科学版）,2017,48(4):867-872,6.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）
