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Development of an Integrated Mill Model Structure for Tumbling Mills

Yu, P, Xie, W, Liu, LX and Powell, M (2014) Development of an Integrated Mill Model Structure for Tumbling Mills In: XXVII International Mineral Processing Congress (IMPC 2014), 2014-10-20 - 2014-10-24, Santiago, Chile.

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In order to develop a common mathematical and simulation platform for tumbling mills, a review of existing mechanistic models was made identifying the key aspects of grinding and slurry transport which are common to all tumbling mills. A mill model structure has been developed for all types of tumbling mills based on the population balance framework by incorporating breakage characteristics, slurry and solids transport, product classification and discharge, and energy consumption. A size-dependant breakage model developed by the JKMRC is applied. Transport is separated from breakage events and treated as a main sub-model in the new model structure. The model structure is based on dynamic time-stepping technique to enable dynamic simulation capability for non-steady-state simulation and control modelling. It is envisaged that the new model will cover a full range of milling conditions. It should enable a smooth transition between different mill types, such as from AG (Autogenous Grinding) to SAG to ball mill. The dynamic mill model structure developed here is the first step towards mechanistic modelling of grinding mills and provides great potential for the optimization of the comminution process

Item Type: Conference or Workshop Item (Conference Paper)
Subjects : Chemical and Process Engineering
Divisions : Surrey research (other units)
Authors :
Yu, P
Xie, W
Powell, M
Date : 20 October 2014
Contributors :
Yianatos, J
Doll, A
Gomez, C
Kuyvenhoven, R,
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 13:55
Last Modified : 23 Jan 2020 18:58

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