AngloGold Ashanti Limited

AngloGold Ashanti produces 4.98 million ounces of gold from its operations – an estimated 7% of global production – making it the third largest producer in the world.

AngloGold Ashanti Limited

The software solutions chosen for the Geita Mine included an expert system running on System Platform.

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 such as problems with the discharge dilution density
  • Full remote support and fuzzy logic rule changes promote rapid improvements

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

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