农机化研究2017，Vol.39Issue(6)：74-78,5.
双轴桨叶式混合机内椭球颗粒混合特性模拟
Simulation on Mixing Characteristic for Ellipsoid Particles in Twin-shaft Paddle Mixer
摘要
Abstract
To investigate random motion and mixing characteristics of ellipsoid particles in twin-shaft paddle mixer, mixing process of particles is simulated using discrete element method in this research .Particles mixing law and mixing characteristics are analysed with the view of a single particle random motion trajectories and streamline motion trajectories diagram of particles swarm .And the mathematic relation between mixability and revolutions of agitating blades is de-scribed quantitatively .Results show that random motion of ellipsoid particles is acute , mixing performance is favorable in radial direction and axial direction .Convective mixing , shear mixing and diffusive mixing control the mixing homogeneity process of segregation particles .Mixability of segregation particles has direct correlation with revolutions .The relation be-tween mixability and revolutions conforms to the exponential growth model .关键词
混合机/椭球颗粒/混合特性/离散元法/双轴桨叶Key words
mixer/ellipsoid particles/mixing characteristics/discrete element/twin-shaft paddle分类
农业科技引用本文复制引用
兰海鹏,刘扬,贾富国,唐玉荣,沈柳杨,栗文..双轴桨叶式混合机内椭球颗粒混合特性模拟[J].农机化研究,2017,39(6):74-78,5.基金项目
塔里木大学校长基金硕士项目（ TDZKQN201606）；塔里木大学现代农业工程重点实验室开放项目（ TDNG20150102）；兵团工业科技攻关项目 （）
