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Design and development of a low noise rockdrill
By R. W. Ottermann, N. D. L. Burger, A. J. von Wielligh, P. R. de Wet, J. L. Steyn
A low noise blast hole drilling system was developed to limit the risk of noise induced hearing impairment in mining operations. Noise induced hearing loss has been identified as a major occupational
Jan 1, 2003
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Origins Of Some Fractures Around Tabular Stopes In Deep South African Mines ? Synopsis
By G. van Aswegen
The geometry and morphology of a set of low-angle fractures around a stope in a deep Witwatersrand gold mine are explained in terms of extension fractures forming under variable conditions of stress.
Jan 1, 2012
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Assessment Of Viscosity Of Slags In Ferrochromium Process
By L. Forsbacka, M. Nakamoto, L. Holappa
Viscosity of the slag is one of the central parameters when producing FeCr in submerged arc furnaces. It contributes to smelting behaviour and reduction kinetics of chromite ore as well as to the Cr r
Jan 1, 2007
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Post Taphole Practices Adding Value
By H. Hearnden
Whereas in the past, ladles were simply a means of transferring molten products from furnace tapholes to points of discharge be they casting pans or waste dumps, the ladle is now becoming a more integ
Jan 1, 2004
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A design methodology for mechanised stoping with stable support pillars at depth in the Bushveld Complex
By D. A. Spencer, L. J. Gardner
In light of the apparent productivity benefits provided by mechanised stoping, Impala Platinum Limited commissioned a study to investigate its possible implementation for mining reserves located 1200
Jan 1, 2003
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A stochastic simulation framework for truck and shovel selection and sizing in open pit mines
By S. Frimpong, S. R. Dindarloo
Material handling in open pit mining accounts for about 50% of production costs. The selection and deployment of efficient, safe, and economic loading and haulage systems is thus critical to the produ
Jan 1, 2015
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Investigation of the geomechanical criteria for safe and efficient crown pillar extraction beneath stabilised rock rockfill at the Crusader Mine
By J. Whitford
The established crown pillar extraction method at Gold Fields Australia Ltd.’s Crusader Mine, leads to the significant dilution and poor recovery of ore due to caving of the overlying loose rockfill.
Jan 1, 2003
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Reconstruction time of a mine through reliability analysis and genetic algorithms - Synopsis
By M. Kumral
A mining system consists of many sub-systems such as drilling, blasting, loading, hauling, ventilation, hoisting and supporting. During mining operation, these sub-systems may experience various probl
Jan 1, 2009
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Value-in-use model for chlorination of titania feedstocks (0e024aa2-1bbf-4aa3-a06b-c832965b74fa)
By J. H. Zietsman, S. Maharajh, J. Muller
In the chlorination process for TiO2 pigment production, blends of titania feedstocks such as ilmenite, synthetic rutile (SR), natural rutile, upgraded slag, and chloride-grade slag are reacted with c
Jan 1, 2015
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The Use Of Neural Network Analysis Of Diagnostic Leaching Data In Gold Liberation Modelling
By K. R. P. Petersen
Paper written on project work carried out in partial fulfilment of M.Sc. Eng.(Metallurgical Engineering) degree The interrelationship between mineral liberation and leaching behaviour of a gold ore
Jan 1, 2003
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Burning pyrites compared to sulphur ? Synopsis
By W. V. Mutler
Present day capital costs are analysed for a 2 000 metric tonne per day (MTPD) pyrite burning plant and compared with a sulphur burning plant of the same capacity. Power, raw material and steam produc
Jan 1, 2009
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Total Primary Milling Cost Reduction By Improved Liner Design - Synopsis
By J. Dahner
Total milling cost is composed of energy, liner and grinding media costs. In primary high ball load milling, the grinding media play the biggest role in total milling cost. This cost can be drastical
Jan 1, 2011
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Relationships between comminution energy and product size for a magnetite ore - Synopsis
An extensive laboratory grinding study was carried out on a magnetite ore in order to assess the grinding behaviour of magnetic concentrate and tail from low intensity magnetic separation (LIMS).The t
Jan 1, 2010
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Some Myths About DC Arc Furnaces ? Synopsis
By R. T. Jones
DC arc furnaces are widely used for steel scrap melting as well as for reductive smelting of ore fines. Industrial smelting applications include the smelting of chromite to produce ferrochromium, the
Jan 1, 2011
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Mechanical–transport processes in salt: consequences for abandonment of underground exploitations
By M. Ghoreychi, X. Daupley
ABSTRACT: The paper is devoted to two major aspects related to the abandonment of salt mines: 1)- Long-term risk associated with the mechanical instability of surface and its consequences for public s
Jan 1, 2003
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Checking precision and accuracy of an automatic ore sampler
Most processing plants use automatic samplers to extract ore aliquots along a producing shift. These aliquots are combined into a sample normally sent to lab analysis. The sampler used in the extracti
Jan 1, 2003
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Engineers For The 21st Century - Minerals And Metals Industry
By P. J. Knottenbelt
Outcomes from a workshop organized through the SAIMM revealed that the minerals and metals industry must develop its ?Engineering Team? if it is to continue to meet the challenges of globalization. Th
Jan 1, 2002
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Characterization Of Au Catalysts - Synopsis
By T. van Heerden
A range of supported gold catalysts was prepared by ion exchange, varying many of the preparation variables, including concentration in the precursor solution, washing procedure, as well as drying and
Jan 1, 2012
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Laboratory Investigations Of The Electrical Resistivity Of Cokes And Smelting Charge For Optimizing Operation In Large Ferrochrome Furnaces
By Krogerus. H., P. Jokinen, T. Lintumaa
Keywords: Pyrometallurgy, furnace, coke, smelting charge, optimization, ferrochrome The main consumer of ferrochrome is stainless steel production. Stainless steel must maintain a reasonable pric
Jan 1, 2006
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Grid-Based Analysis of Seismic Data
Quantitative seismology is an important tool for investigating mineinduced seismicity and the quantification of the seismic rock mass response. The spatio-temporal interpretation of seismic data withi
Jan 1, 2014