Title: Mill AutoPilot at CSA Mine
1- Mill Auto-Pilot at CSA Mine
- Dieter Engelhardt, Jennifer Woodgate, Andrew
Thornton, Andrew Schroder
Return to www.mipac.com.au/millautopilot
2Stabilising Control for SAG mill load and power
Flowsheet of the plant being simulated
Plant data inputs to the dynamic simulator models
Output Critical information about the SAG mill
? Input to control
The SAG mill model predicts the position of the
charge toe and shoulder
Models calculate feedrate required to stabilise
load ? Second opinion for the expert system
Ore hardness is model fitted on-line so model
remains calibrated to plant conditions
3Measured and Predicted Power
4Status of MA-P at CSA Cobar
- Commissioned March 2004
- Interfaced to SCADA using OPC protocol
- On-line model of grinding circuit configured
- SAG charge estimator infers mill charge load, toe
and shoulder angles and radius - Stabilising control for SAG mill load and power
- Operators trained
5Performance of MA-P at Cobar
- Grinding stability improved
- Less down time for high power draw
- Improved consistency between shifts
- Flotation performance improved
- MA-P proven robust
- Operator acceptance MA-P on SAG 2 ?
Return to www.mipac.com.au/millautopilot