Field notes

Where the losses hide.

Short reads on the invisible disturbances that cost mineral processing plants throughput, energy, and metal — and what smart instruments plus advanced process control do about each one.

Grinding Circuit

Why the SAG runs scared: MPC for SAG mill control

Fear of overload keeps mill load conservative. The safety margin is unmilled tonnes paid for in lost throughput every shift — and a smart instrument can give that margin back.

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Flotation Circuit

What the froth knows before recovery does

Bubble structure and surface velocity shift minutes before the assay catches up. A camera that reads the froth gives the controller a head start on grade.

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Crushing Circuit

Recycle load: the SAG mill's early warning in mineral processing

Pebble recycle is the leading indicator of ore hardness. Measure it well, and the SAG and crusher stop fighting each other for tonnes.

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