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Grinding Circuit Modelling Documentation

This documentation describes the operating and underlying mathematics of the SAGMILLING.COM grinding circuit modelling program. It is intended to be used by the model users who want to operate and understand the functioning of grinding models.

Generic Background Information

• Theory of power models
• Model types: specific energy consumption models
  • Single stage ball milling
  • Raw Bond/Barratt Model
  • Default Bond/Barratt Model SABC (including phantom cyclone)
  • Default Bond/Barratt Model SAB (including phantom cyclone)
• Model types: mill power draw
  • Austin SAG model (hybrid phenomenological and empirical model)
  • Morrell C-model (phenomenological model with empirical fitting. Sub-divided into a simplified model with 'typical' defaults and full model with all parameters editable)
  • Loveday/Barratt SAG model (uses an internal table of empirical "Power Numbers")
  • Nordberg model (largely empirical model)
• Testwork and test types
• Measurement of power (motor input versus shell, etc.)
• Particle size does matter

Operating the Model

• General concepts
  • Detailed concepts - Query Table
  • Detailed concepts - Intellectual Property
• Creating a project
• How to declare new Sample Names
• Entering test results
• Creating a circuit model
• Creating/modifying a mill
• How to show a sub-set of results
• How to copy data out of a table and into a spreadsheet

Benchmarking

Examples of how the SAGMILLING.COM model compare to published information for actual milling circuits.

• Category:Benchmarking
  • Specific Energy Consumption Models
  • SAG Mill Power Draw Models, use the IMPC 2016 paper
  • Ball Mill Power Draw Models

Bibliography

• Bibliography: Specific energy consumption models
• Bibliography: Mill power draw models
• Bibliography: Testwork programs

Index

Special:Categories