Search Results - "Powell, M.S."

The contribution of DEM to the science of comminution by Weerasekara, N.S., Powell, M.S., Cleary, P.W., Tavares, L.M., Evertsson, M., Morrison, R.D., Quist, J., Carvalho, R.M.

“…The ability to model comminution techniques has been key in the mineral processing industry and other industries where size reduction of rocks is a key focus…”
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Benchmarking comminution energy consumption for the processing of copper and gold ores by Ballantyne, G.R., Powell, M.S.

“…[Display omitted] •36% of mining energy was found to be consumed by comminution equipment.•Comminuting Au and Cu ores requires 0.2% global and 1.3% Australian…”
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Mechanistic modeling and simulation of a batch vertical stirred mill by Oliveira, A.L.R., Rodriguez, V.A., de Carvalho, R.M., Powell, M.S., Tavares, L.M.

“…•Application of mechanistic modelling approach to batch wet vertical mills.•Stirrer rotation frequency and solids concentration effects captured by the…”
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The effect of screen versus cyclone classification on the mineral liberation properties of a polymetallic ore by Frausto, J.J., Ballantyne, G.R., Runge, K., Powell, M.S., Wightman, E.M., Evans, C.L., Gonzalez, P., Gomez, S.

“…•Coarse particle liberation to flotation ocurred by replacing cyclones with screens.•The heuristic of an unchanged constant liberation by size in grinding is…”
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The development of the wide-range 4D appearance function for breakage characterisation in grinding mills by Yu, P., Xie, W., Liu, L.X., Powell, M.S.

“…[Display omitted] •Two wide-range 4D (four dimensional) appearance function models were developed.•The P80-m-q based 4D model predicts best compared with other…”
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Evolution of a generic, dynamic and multicomponent tumbling mill model structure incorporating a wide-range 4D appearance function by Yu, P., Xie, W., Liu, L.X., Hilden, M.M., Powell, M.S.

“…This work aims to build a generic dynamic model structure, which can accommodate interchangeable sub-models of each sub-process, making it amenable to…”
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Performance evaluation of the novel multi-shaft mill using DEM modelling by Bracey, R.J., Weerasekara, N.S., Powell, M.S.

“…Multi-shaft EDS mill alongside DEM simulated ore particle flow. [Display omitted] •Conducted a performance evaluation of the novel mill using site survey and…”
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Relining efficiency and liner design for improved plant performance by Yahyaei, M., Powell, M.S., Toor, Paul, Tuxford, Andrew, Limpus, Andrew

“…[Display omitted] •Designing liners for efficiency through incorporating performance of relining.•Relining efficiency will play a significant role in liner…”
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Characterisation of superficial breakage using multi-size pilot mills by Yahyaei, M., Weerasekara, N.S., Powell, M.S.

“…[Display omitted] •A new approach is proposed to characterise superficial breakage of ore.•A new superficial breakage rate is presented.•The superficial…”
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Glycated hemoglobin is not an accurate indicator of glycemia in rainbow trout by Santin, A.E., Searle, A.J., Winston, V.D., Powell, M.S., Hardy, R.W., Rodnick, K.J.

“…Glycation occurs when glucose reacts non-enzymatically with proteins. This reaction depends upon time, ambient glucose concentration, and the molecular…”
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What is required from DEM simulations to model breakage in mills? by Powell, M.S., McBride, A.T.

“…It is quite common to encounter discrete element method (DEM) simulations of mills that present images of the motion of grinding media, summaries of tangential…”
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Novel size segregation indices for multi-sized particle stockpiles by Ye, Z., Yahyaei, M., Hilden, M., Powell, M.S.

“…[Display omitted] •A comprehensive literature review for the size segregation of stockpiles in mining.•Three novel segregation indices are developed to…”
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A laboratory-scale characterisation test for quantifying the size segregation of stockpiles by Ye, Z., Yahyaei, M., Hilden, M.M., Powell, M.S.

“…Most mine sites use large coarse ore stockpiles as a buffer between the mine and the processing plant. Stable operation of the downstream processes demands a…”
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Estimating energy in grinding using DEM modelling by Weerasekara, N.S., Liu, L.X., Powell, M.S.

“…[Display omitted] •DEM simulations were performed by varying the mill size and charge PSD.•The toe impact region has higher impact energies.•The bulk shear…”
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A study of charge motion in rotary mills Part 1—extension of the theory by Powell, M.S., Nurick, G.N.

“…Existing theories of the motion of the media in a rotary mill, and the calculation of mill power are extended to account for the actual motion of balls within…”
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A study of charge motion in rotary mills part 2—experimental work by Powell, M.S., Nurick, G.N.

“…The motion of balls deep within the charge of a rotary grinding mill was investigated, using novel techniques to track the balls. These included X-ray filming…”
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DEM modelling of liner evolution and its influence on grinding rate in ball mills by Powell, M.S., Weerasekara, N.S., Cole, S., LaRoche, R.D., Favier, J.

“…► DEM used to simulate the dynamics of ball motion in an industrial scale ball mill. ► Energy distributions with progressively worn lifter geometry profiles…”
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Foreword by Powell, M.S.

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A study of charge motion in rotary mills part 3—Analysis of results by Powell, M.S., Nurick, G.N.

“…Results of experiments investigating the motion of balls deep within the charge of a rotary grinding mill are presented. The true centre of mass of the entire…”
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A consolidated summary on the evolution of a dynamic tumbling mill model by Yu, P., Xie, W., Liu, L.X., Hilden, M., Powell, M.S.

“…A mechanistic model for tumbling mills was developed based on breakage characteristics and tumbling mill operational features. The concept was presented at the…”
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