Digital SolutionsGrinding

Impact Monitoring in SAG Mills - Impact Finder

Identify critical impacts and protect liners while optimizing SAG operation.

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The challenge

Hidden critical impacts in operation

Critical impacts of grinding media against liners can accelerate wear and pose risks, but they are not always visible with traditional process variables.

The solution

Acoustic analytics to protect the mill

Acoustic analysis system using microphones installed around the mill to classify impact events and estimate load conditions. The information can be integrated into the DCS and expert control strategies.

Benefits

Safe maintenance and integration

Allows for microphone replacement from a safe zone, impact classification, and information integration via DCS/OPC to support control strategy development.

Energy directed to the ore

Helps direct energy towards the ore and not the liner.

Metal-to-metal impact detection

Identifies zones and conditions of metal-to-metal impacts.

Operational balance

Supports the balance between tonnage, filling, RPM, and mill protection.

How does the solution work?

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Transforming operational data into actionable information

Can leverage existing cameras, features end-to-end coverage and automatic classification, consists of a platform with traceability, and applies to multiple stages of the process.

Captured information

Sound level

Impact classification

Estimated fill level

Load and cascade angle

Frequency and zone of critical events

Processing

Signal analysis and impact classification

Results

Real-time signals

Trends and alerts for operation

Expert control