Abstract
This work aims to build a generic dynamic model structure, which can accommodate interchangeable sub-models of each sub-process, making it amenable to continuous upgrade without the need for redevelopment, for multicomponent tumbling grinding mills. The Generic Tumbling Mill Model Structure (GTMMS) is based on a population mass balance framework which incorporates breakage characteristics, transport, classification along the mill, a discharge function, and energy consumption incorporated in a dynamic mill model structure. Version III builds on two earlier versions by incorporating energy distributions derived from discrete element modelling, an updated version of the 4D breakage appearance function which applies to a broader size range, and addresses multi-component ore breakage via the probability distribution of energy split based on material stiffness. The model has been tested against multi-component plant survey data. GTMMS III suggests a mechanistic insight into mixture prediction through component analysis and is a step forward towards the unified comminution model (UCM) with its mechanistic, generic, and dynamic prediction capability.
Original language | English (US) |
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Pages (from-to) | 396-407 |
Number of pages | 12 |
Journal | Powder Technology |
Volume | 339 |
DOIs | |
State | Published - Nov 2018 |
Externally published | Yes |
Bibliographical note
Funding Information:The authors wish to acknowledge the financial support of the Commonwealth Scholarship from the Australian Government and Scholarships from the University of Queensland. The authors wish to acknowledge the partial financial support on supervision from the AMIRA P9P project.
Funding Information:
The authors wish to acknowledge the financial support of the Commonwealth Scholarship from the Australian Government and Scholarships from the University of Queensland . The authors wish to acknowledge the partial financial support on supervision from the AMIRA P9P project.
Publisher Copyright:
© 2018
Keywords
- 4D appearance function
- DEM
- Dynamic
- Energy splitting
- Generic mill model
- Multicomponent ore