Applying Computationally Intensive Techniques to Modelling of Comminution Devices
Over the last four years, a major collaboration between CSIRO-MIS, UCT and JKMRC has produced two significant advances in the modelling of comminution. The Universal Comminution Model (UCM) uses parametric SPH/DEM studies of comminution and separation devices to calibrate mathematical models which are suitable for industrial use.The Virtual Comminution Machine (VCM) uses the same computationally intensive techniques based on discrete element modelling (DEM) and smoothed particle hydrodynamics (SPH) to directly model any comminution device by combining a CAD file describing the machine design, sophisticated ore characterisation methods and advanced particle scale flow and breakage simulation.The UCM should be useful for process analysis and optimisation of existing equipment and circuits while the VCM should make a major contribution to the evaluation and development of new machines.Progress to date is encouraging with several processes now well described using DEM.This paper also reports on progress towards combining DEM for particles with a realistic slurry model based on SPH for different types of comminution devices. In due course, this combination should allow accurate modelling of particle transport in wet mills to be combined with DEM models.
SAG mill Grinding Discrete Element Method Comminution Breakage model
P.W. Cleary M. S. Powell R.D. Morrison
CSIRO Mathematical and Information Sciences, Clayton South, Australia JKMRC, the University of Queensland, Australia
国际会议
XXIV International Mineral Processing Congress(第24届国际矿物加工大会)
北京
英文
1955-1963
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）