EXTRA FACTS
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Grade Engineering Explained
Grade Engineering is being developed and implemented by a consortium of over 20 mining companies , equipment suppliers and research organisations . Emerging results from collaborative site activities demonstrate potential for generating significant value which can reverse the trend of decreasing production due to declining feed grades . Opportunity for Grade
Engineering is based on five rock based ‘ levers ’ linked to combinations of screening , sensor-based sorting and heavy media separation . These involve :
• Preferential grade deportment by size
• Differential blasting for grade by size
• Sensor based bulk sorting
• Sensor based stream sorting
• Coarse gravity miningglobal . com