A structured approach to modelling SAG mill liner wear - Numerical modelling of liner evolution
AUTHOR(S)
A.T. McBride, M.S. Powell
PUBLISHER
CIM
SOURCE
International autogenous and semi autogenous grinding technology 2006
YEAR
ABSTRACT
A numerical framework to predict the three-dimensional evolution of the liner profile within a rotating industrial SAG mill is presented. The need to understand the manner in which the lifter profile develops is emphasised by comparing two discrete element method (DEM) simulations with measured new (i.e. unworn) and worn lifter profiles. The DEM informs the subsequent wear model as to the loading conditions on the shell of the mill. The wear model relates the loading conditions on the shell to material loss. The lifter profile is then evolved and forms the input for the next DEM simulation step in the wear analysis cycle.
KEYWORDS
SAG mill, wear analysis, wear model