Back to Search Start Over

An improved disk discontinuous deformation analysis model for simulating particle mixing process in rotary drums

Authors :
Yuan-Zhen Xu
Xiao-Feng Chen
Gang-Hai Huang
Shu Zhang
Ze-Bing Lin
Xiong-Wei Yi
Source :
Powder Technology. 368:202-212
Publication Year :
2020
Publisher :
Elsevier BV, 2020.

Abstract

This paper develops an improved disk discontinuous deformation analysis (DDDA) model to simulate mixing particles in rotary drums. The original DDDA is improved by developing a disk-movable line segment contact model to motivate the constant movements of the disks during the mixing operation. The analytical solution of the movement of a single disk in a rotary drum is achieved by building a force analysis model, and the improved DDDA is validated by comparing this analytical solution with the proposed numerical simulation. Then, the improved DDDA is utilized to simulate mixing 8805 disks in a rotary drum, during which the influences of rotational speed and layouts of stirring blades are studies. Model performance shows that, the improved DDDA is a feasible tool to simulate the particle mixing process in rotary drums, which may optimize schemes for mixing particles and designing mixing equipment in industry.

Details

ISSN :
00325910
Volume :
368
Database :
OpenAIRE
Journal :
Powder Technology
Accession number :
edsair.doi...........94b1705b30910fad30e185e5adc217ca
Full Text :
https://doi.org/10.1016/j.powtec.2020.04.061