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| PAPERS – STUDENT EDITION - MINING by E. Develo, M. Pillalamarry, and E. Garab A number of options were considered In order to improve the ventilation conditions and these were simulated using an appropriate software package. A workable solution was proposed that could improve the overall ventilation in the mine and lead to significant savings in the cost of providing the ventilation. Sub-standard practices: effects on safety performance in South African gold mines by G. Kleyn and J.J.L. du Plessis The purpose of this investigation was to establish the root causes of sub-standard practises and the consequent effect on safety performance at an underground production operation of a gold mine in the Free State. The established methods of addressing sub-standard practices and improving safety performance were found to discourage employees from performing work safely and according to procedure. A critical investigation into tyre life on an iron ore haulage system by G.C. Lindeque This investigation compared 'Best PractiCe' to the current tyre management strategy at the mine to determine the elements that could be improved. A new Tyre Management Strategy was formulated as a Step-by-Step guide on how to implement the proposed changes. Review of support systems used in poor ground conditions in platinum room and pillar mining: a Zimbabwean case study by T. Chikande and T. Zvarivadza The results from this study showed that the current support system and mining practices in bad ground areas need to be adjusted to improve safety and productivity. A number of recommendations were made to change the explosive, pillar design, and roof bolting practice. PAPERS - STUDENT EDITION - METALLURGY Slurry abrasion of WC-4wt%Ni cold-sprayed coatings in synthetic minewaterby N.B.S. Magagula, N. Sacks, and I. Botef A number of tests were conducted to assess the wear behaviour of mild steel that had been subjected to a low pressure cold gas dynamic spraying to produce a coating deposit of tungsten carbide containing a known amount of nickel. Matte – tap-hole clay – refractory brick interaction in a PGM smelter by J. Du Toit, R.D. Cromarty, and A.M. Garbers-Craig This laboratory scale investigation examined the ability of the tap-hole clay to form a protective layer on the brick which could limit the matte penetration into the tap-hole brick. Separation of kimberlite from waste rocks using sensor-based sorting at Cullinan Diamond Mine by T. Mahlangu, N. Moemise, M.M. Ramakokovhu, P.A. Olubambi, and M.B. Shongwe This paper describes the initial test work that led to the decision to conduct a pilot scale study. The mineralogical characterization of the feed and product streams, to validate the sorting criteria and the operational data obtained during the pilot plant campaign is shown. An evaluation of the thermal fatigue performance of three alloys for casting mould applications by V. van der Merwe and C.W. Siyasiya The aim of the project was to find an alternative alloy that would outperform the current low alloy cast steel that was experiencing premature thermal fatigue failure of the casting moulds that are used in catalyst production. The effect of particle size on the rate and depth of moisture evaporation from coal stockpiles by J. De Goede, B. Muller, Q.P. Campbell, M. le Roux, and C.B. Espag de Klerk The objective of this project was to determine the effect of coal bed particle size on the rate of evaporation as well as the depth to which evaporation extends in a coal stockpile. Regards KELLY MATTHEE JOURNAL & SUBSCRIPTIONS CO-ORDINATOR Telephone: +27 11 834 1273 Facsimile: 086 585 2901 E-mail kelly@saimm.co.za | |
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