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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
- Bond/Rowland Single stage ball milling
- Raw Bond/Barratt Model
- Optimized Bond/Barratt Models (including phantom cyclone)
- Optimized Bond/Barratt Model SABC (pebble crushing)
- Optimized Bond/Barratt Model SAB (pebble recycle)
- HPGR and ball mill (using Bond)
- Model types: mill power draw
- Austin SAG model (hybrid phenomenological and empirical model)
- Morrell C-model for SAG & ball mills (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 ball mill 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
- 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
Administrator functions
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
