Ideally true simulation of the entire mining value chain is key in understanding potential impacts of introducing coarseSubjective term for the larger sized component of feed rejection stages into the process. Where available these methods are utilised, however due to their specific nature are currently still impractical to apply across all cases in a timely manner.
For this reason detailed simulation work is used to supplement, support or confirm more simple numerical approaches. Within CRC ORE Finite Element Modelling (FEM), Discrete Element Modelling (DEM) and simple physics based models have all been utilised depending on the purpose.
Simulation options exist for;
Blasting, utilising BlastORE software based on a physics based model:
Digging, integrating shovel GPS (red column) and empirical models for excavation (yellow cubes):
Delivery, integrating shovel and truck GPS with blasting models ,digging models and In-situContained in unbroken ground. grades:
Simulation through this type of integration allows for direct comparison between an In-situContained in unbroken ground. grade profileSpatial or temporal distribution of grade. and an expected delivered heterogeneity profile. This can be done pre-cross belt sensor installation to determine potential separation opportunities or post installation to provide a secondary checking mechanism for sensor grade determinations.