Study of the influence of liner wear on the load behaviour of an industrial dry tumbling mill using the Discrete Element Method (DEM)

Kalala, J.T.; Breetzke, Mark; Moys, M.H.

doi:10.1016/j.minpro.2007.10.001

Cited by 43 publications

(15 citation statements)

References 6 publications

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“…In the last fifteen years different authors started to use Discrete Element Modeling (DEM) to study the influence of liner wear on the positions of the load kidney (shoulder and toe angles), power draw, and impact energy spectra [15], [16], [17].…”

Section: I2) Effect Of Lifting Wear On Powermentioning

confidence: 99%

Space vector modeling of a SAG mill drive and evaluation during mill shutdowns

Castro

Valenzuela

2015

2015 IEEE Industry Applications Society Annual Meeting

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Mineral grinding is one of the most important and critical stages in copper mining. Economy-scale has motivated the use of high capacity semi-autogenous (SAG) mill units whose continuous operation is essential to mine profitability. Hence, the development of modeling tools of SAG mill drive systems that help to analyze and prevent costly longtime outages, are of great benefit.Paper presents the development of phase and qd space vector models of the 2-stator winding synchronous motor used in SAG mill drives.Using a space vector rotation transformation the two shifted stator winding are modeled as an equivalent 1-stator winding. Combining these motor models to two 6-pulse, one 12-pulse, and one ideal cycloconverters, three space models of the complete drive system are developed.The space vector models are evaluated during a normal stop sequence of an 8.2 MW SAG mill drive. The stop sequence includes a decelerating ramp, a holding torque and a rollback triangular reference.Results show that the developed models are powerful and precise tools that allow the evaluation of the SAG mill drive system during any dynamic or transient event.

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Section: I2) Effect Of Lifting Wear On Powermentioning

confidence: 99%

Space vector modeling of a SAG mill drive and evaluation during mill shutdowns

Castro

Valenzuela

2015

2015 IEEE Industry Applications Society Annual Meeting

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“…Full three dimensional modelling of pilot scale SAG mills has also been performed for over a decade (see Cleary, 2004Cleary, , 2009aMorrison and Cleary, 2008;Cleary and Morrison, 2008). It has also been used for modelling of axial flow in ball mills (Cleary, 2006(Cleary, , 2009b and generally for understanding performance in tumbling mills (Djordevic, 2003(Djordevic, , 2005Kalala et al, 2008;Powell et al, 2011). It has also been used for modelling of stirred mills Yang et al, 2006;Jayasundara et al, 2008) A recent review of the use of DEM in comminution science is presented by Weerasekara et al (2013).…”

Section: Introductionmentioning

confidence: 99%

Prediction of coupled particle and fluid flows using DEM and SPH

Cleary

2015

Minerals Engineering

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“…The Discrete Element Method (DEM) enables calculation of such flows (Cundall and Strack, 1979) and has been used extensively for mill http modelling Rajamani, 1992, 1994;Rajamani and Mishra, 1996;Inoue and Okaya, 1996;Cleary, 1998aCleary, , 2001aCleary, , 2001bCleary, , 2001cCleary, , 2004Cleary, , 2009Herbst and Nordell, 2001;Cleary, 2004, 2008;Djordjevic, 2003Djordjevic, , 2005Kalala et al, 2008;Lee et al, 2010;Powell et al, 2011;Carvalho and Tavares, 2011; and papers in the special issue edited by . A recent review of the use of DEM in comminution science is presented by Weerasekara et al (2013).…”

Section: Introductionmentioning

confidence: 99%