Granular Flow - Application
Charge motion in a rotating ball mill
The efficiency of ball mills and the wear characteristics of the liner
are of enormous economic importance to the mining and quarrying
industries. These can be analysed through the use of Discrete Element
Method simulations.
The three-dimensional motion of the charge in a ball mill has been
computed for a mill of 5 m diameter and 3 m length.The mill was equipped
with 23 lifter bars rotating clockwise at 75% of the critical speed, and
filled with 75, 100 and 200 mm spherical particles. The motion of the
balls (coloured by their velocity magnitude) is shown in the following
animation and images. Periodic boundary conditions have been applied at
both ends of the ball mill.
| Download a more detailed animation: |
AVI (320x240 pixels; 6.6 MB) |
|
QuickTime (320x240 pixels;
5.5 MB) |
|
To
top