Analysis of Fluid Energy Mill by gas-solid two-phase flow simulation

Document Type

Article

Publication Date

4-10-2011

Abstract

The particulate motions and collisions inside the Fluid Energy Mill were simulated by coupling the Discrete Element Method (DEM) and Computational Fluid Dynamics (CFD). The influences of the operating conditions on the particulate motions and collisions were investigated to further explain size reduction process. The high-speed grinding air streams introduced through narrow inlets selectively accelerate the particles located near the inlets. Those particles are more likely to hit the wall at a high speed, or collide with other particles due to the velocity difference. The simulation results also reveal that abrasion is the dominant breakage mechanism during the particle-particle collisions. On the other hand, with the increase of number of particles in the chamber, the particle-particle collision becomes more important for milling, compared to the particle-wall collision. The side-swipe particle-particle collisions also facilitate transferring of coating materials among particles, which explains the simultaneous milling and coating process recently developed in our lab. © 2011 Elsevier B.V.

Identifier

79952734573 (Scopus)

Publication Title

Powder Technology

External Full Text Location

https://doi.org/10.1016/j.powtec.2010.12.033

ISSN

00325910

First Page

684

Last Page

693

Issue

3

Volume

208

This document is currently not available here.

Share

COinS