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CFD-DEM simulations of a sawtooth jigging profile on particle mixtures
conference contribution
posted on 2012-01-01, 00:00 authored by S M Viduka, Y Q Feng, Karen HapgoodKaren Hapgood, P SchwarzThis paper presents a numerical investigation of solid separation in jigging device, which is a gravity separation method widely used in ore processing. Separation is recognized as being heavily dependent on fluid motion in the jig. This study explores the effects of the inlet time dependent velocity profile on jigging performance. Modelling of the liquid-solid system is performed through a combination of computational fluid dynamics (CFD) to simulate liquid flow and discrete element method (DEM) to resolve particle motion. The initial packing conditions consist of a binary-density particle system of 1130 particles each 1 cm in diameter. A variety of jigging profiles are implemented in jigging. The sawtooth pulsation profile is selected with three variations in both amplitude and frequency. The performance of each profile variant is compared in terms of solid flow patterns, separation kinetics, energy, and mean particle position. These quantitative comparisons demonstrate significant differences in the segregation rate, energy, and solid phenomena, helping find an alternative optimum operating setting for the system.
History
Event
International Mineral Processing Congress. Conference (26th : 2012 : New Delhi, India)Series
International Mineral Processing CongressPagination
1409 - 1422Publisher
Institute of Minerals & Materials Technology (IMMT), IndiaLocation
New Delhi, IndiaPlace of publication
Bhubaneswar, IndiaStart date
2012-09-24End date
2012-09-28ISBN-10
8190171437Language
engPublication classification
E Conference publication; E1.1 Full written paper - refereedCopyright notice
2012, International Mineral Processing CongressEditor/Contributor(s)
[Unknown]Title of proceedings
IMPC 2012 : Innovative Processing for Sustainable Growth : Proceedings of the International Mineral Processing Congress 2012 ConferenceUsage metrics
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