化工进展Issue(10)：2576-2582,7.DOI:10.3969/j.issn.1000-6613.2014.10.010
复合移动床电石反应器中颗粒运动的离散单元法模拟
Discrete element method simulation of particle flow in a combined-moving bed reactor for carbide production
摘要
Abstract
In this paper,the particle flow in a combined-moving bed reactor was simulated using the discrete element method(DEM),and the accuracy of DEM simulation was verified by a comparison with the literature results. The effects of rotational speed and open-hole size of two kinds of distributing devices were analyzed. The results showed that:①There are two kinds of flow patterns for the two distributing devices,i.e.,plug flow and funnel flow;②particle mass fluxes increased non-linearly with the increase of rotational speed and open-hole size of the distributing devices;③along the radial direction,particles were distributed more uniformly with increasing the rotational speed and open-hole size,and the distribution showed U and M shapes for the two kinds of distributing devices;④the radial distribution of particles were more uniformly downwardly along the axial direction,with values of the variance coefficient exceeding 1.0 for the fan-shaped hole distributing plate,and 0.5 for another distributing plate.关键词
离散单元法/数值模拟/颗粒流/移动床/布料器Key words
discrete element method/numerical simulation/granular flow/moving bed/distributing device分类
化学化工引用本文复制引用
黄迪,曾剑桥,刘辉..复合移动床电石反应器中颗粒运动的离散单元法模拟[J].化工进展,2014,(10):2576-2582,7.基金项目
国家973计划项目（2011CB201306）。 （）
