AngloGold Ashanti Limited

AngloGold Ashanti Limited

The software solutions chosen for the Geita Mine included an Expert System running on Wonderware System Platform.

  • Corné Lourens, Metallurgical Manager

    The fuzzy logic rules can be implemented remotely from South Africa or anywhere else, saving time as well as transportation and consultation costs.

  • Goals

    • Applying the corporate standard 
    • Standardizing the control philosophy 
    • Improving the alarming and alarm logging for analysis 
    • Maintaining a history of production data 
    • Providing for real time and scheduled reporting and the production of those reports 
    • Implementing an Expert System based on fuzzy rules to reduce process variation and improve production
  • Challenges

    • Remoteness of the site
    • Extreme ease of operation
    • Sophisticated expert control that also had to be transparent and easy to understand
  • Results

    • The implementation of corporate standards
    • A new road map for future projects
    • A state-of-the-art control system with best support and training infrastructure
    • Greatly improved alarming – ensuring safety and logging the triggers
    • The right information allows the right people to improve plant performance even when not on site
    • Identification of bottlenecks (e.g. problems with the discharge dilution density)
    • Full remote support and fuzzy logic rule changes promote rapid improvements