Pre-concentration strips waste before milling. That raises grade to mill and trims costs.
High waste content and inconsistent ore feed increased processing costs and lowered mill efficiency. Sending unnecessary waste to the mill reduced throughput and consumed additional energy. A method was required to detect and reject waste early in the flow.
Sensor-based sorting systems were installed to assess material before milling, allowing waste to be rejected upstream. This ensured that higher-grade ore reached the processing plant and reduced unnecessary load on the mill. The approach improved the overall feed profile.
The system delivered higher-grade material to the mill and lowered operating costs, consistent with outcomes reported in comparable case studies. Waste rejection before processing provided both operational and financial benefits.
Sensor data (XRT/optical), belt feed, grade control