SciELO - Scientific Electronic Library Online

vol.115 issue8Measuring and modelling of density for selected CaO-Al2O3-MgO slagsInvestigation into strata behaviour and fractured zone height in a high-seam longwall coal mine author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Journal of the Southern African Institute of Mining and Metallurgy

On-line version ISSN 2411-9717
Print version ISSN 0038-223X


LOUBSER, Z.  and  DE KORTE, J. Investigation of factors influencing blending efficiency on circular stockpiles through modelling and simulation. J. S. Afr. Inst. Min. Metall. [online]. 2015, vol.115, n.8, pp.773-780. ISSN 2411-9717.

The aim of a blending stockpile is to minimize the natural variation in properties of a material. Two simulation models were written, for coneshell and chevcon stacking, and used to investigate the influence of different stockpile parameters on blending efficiency. The coneshell model is used to show that blending efficiency is highly sensitive to stacked height, with lower output variances observed for higher capacities. Output variance in both models also decreased when the stacker movement increment was decreased. For chevcon stacking, increasing stacker speed significantly increases the blending efficiencies. Increasing the length of the blending tail also reduces output variation, but this parameter would need to be weighed against the accompanying decrease in buffer capacity.

Keywords : stockpiles; blending efficiency; modelling; simulation; stacking mode.

        · text in English     · English ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License