ORE SORTING
NextOre’s on-belt Magnetic Resonance
Analysers can operate at mining rates of as
much as 5,000 t/h per conveyor belt with no
material preparation requirement, according to
the company (Credit: NextOre)
mining is a large-scale process is a big deal,” he
told IM. “That new information could change
people’s way of thinking about ore sorting.”
The powerful sensor-based ore sorting solutions
that NextOre and others provide are built to exploit
the natural heterogeneity that comes with large-
scale mining and, through a separation method,
reduce the amount of waste currently processed as
ore.
Contrary to initial industry belief, this does not
necessarily lead to lower metal production.
“With ore sorting, you can create ore from the
NextOre MR analysis of measured chalcopyrite content of crushed ore produced by the Ridgeway
mine for one month. Every measured 20 s point is displayed with an instrumental resolution of 0.05
wt.% Cu-as-chalcopyrite (credit: Consequences of fractal grade distribution for bulk sorting of a
copper porphyry deposit, Peter Coghill, David Miljak, Elizabeth Williams)
MARCH 2020 | International Mining 57