Numerical Analysis of Solid Materials Transport in a Rotary Dryer

DOI

10.2991/mme-16.2017.55How to use a DOI?

Keywords

Rotary dryer, Three-dimensional model, Material transportation, Modeling, Residence times, Numerical analysis.

Abstract

The throwing motion of materials in the rotary dryer is the key step to dry off. An estimation model of solid material transport was established. The motion rule about the lifted materials was studied. The numerical model was proposed according to the space motion of materials and mathematical calculation. And the formulas of residence time were deduced considering the weighted value of the holdup within the lifting plates. The proposed estimation models were determined by considering the air drag on the materials in the drum, as well as the inclination angle, the rotation speed and the filling coefficient of a drum. The calculation was compared with the experimental values from the industrial production example. A coefficient 0.9 is adapted to correct the theoretical residence time. The calculation formula of residence times was with a clear and definite physical meaning. The proposed model generated accurate estimations.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Miao-Ling Li
AU  - Yong-Yu Yao
AU  - Hong-Xia Zhao
PY  - 2016/12
DA  - 2016/12
TI  - Numerical Analysis of Solid Materials Transport in a Rotary Dryer
BT  - Proceedings of the 3rd Annual International Conference on Mechanics and Mechanical Engineering (MME 2016)
PB  - Atlantis Press
SP  - 403
EP  - 408
SN  - 2352-5401
UR  - https://doi.org/10.2991/mme-16.2017.55
DO  - 10.2991/mme-16.2017.55
ID  - Li2016/12
ER  -