化工进展2016，Vol.35Issue(10)：3057-3064,8.DOI:10.16085/j.issn.1000-6613.2016.10.007
柱状生物质颗粒与钢球颗粒在滚筒中的混合特性
Mixing characteristics in a rotary drum filled with cylindrical biomass and spherical steel particles
摘要
Abstract
In this paper,mixing of cylindrical biomass particles and spherical steel particles in the drum was simulated with discrete element method(DEM). The rotational speed and particles number ratio were changed in order to analyze the effect of rotational speed and particles number ratio to the particles mixing quality. The results showed that the motion mode was slumping in all six conditions. Particles mixing region was divided into three regions:the monolayer steel particles region in the left of the particles region, the mixing region of biomass particles and steel particles in the middle of the particles region and the accumulating region of biomass particles in the right of the particles region. The particles mixing quality in the middle of the particles region was far better than that in the left or in the right of the particles region. The mixing quality when the number ratio of steel particles and biomass particles was 3000∶200 was better than that when the number ratio of steel particles and biomass particles was 3000∶100 with stationary rotational speed,which means when the steel particles were far more than biomass particles. The increase of the number of biomass particles could enhance the mixing quality. When the rotational speed was changed from 5r/min to 25r/min,the higher the rotationalspeed,the better the particles mixing quality and the faster the mixing tended to be stable with stationary particles number ratio.关键词
柱状生物质颗粒/钢球颗粒/滚筒/离散单元法/混合Key words
cylindrical biomass particles/spherical steel particles/rotary drum/discrete element method/mixing分类
化学化工引用本文复制引用
张立栋,韦庆文,秦宏,王擎..柱状生物质颗粒与钢球颗粒在滚筒中的混合特性[J].化工进展,2016,35(10):3057-3064,8.基金项目
教育部长江学者和创新团队发展计划(IRT13052）、吉林省自然科学基金（20150101033JC）、吉林市科技计划项目（201464044）及吉林省教育厅“十二五”科学技术项目（吉教科合字2015-237）。 （）
