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Influence Of Particle Shape On The Flotation Of Magnetite, Alone And In The Presence Of Quartz Particles
By F. Dehghani
The influence of different grinding methods on the shape characteristics of magnetite particles was investigated. Also, the effect of particle shape on the flotation of the magnetite, both alone and i
Dec 1, 2013
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Pit Wall Failures On ?Unknown? Structures (76621150-30cb-4052-b037-75f5ff3cf933)
A number of impending and actual pit wall failures have been observed and documented, which have been interpreted to initiate on newly generated structural features. This infers failure through intact
Jan 1, 2006
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Evaluation Of Movement Data And Ground Conditions For The Åknes Rock Slide
By V Kveldsvik, N Ragvin, T Eiken, G Grøneng, G V. Ganerød
Catastrophic rock slope failures have caused destructive tsunamis in Norwegian fjords. At the Åknes rock slope the tsunami generating potential is large due to the potential large volume involved in a
Jan 1, 2006
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Determination of Value at Risk for Long-term Production Planning in Open Pit Mines in the Presence of Price Uncertainty
By M. Rahmanpour
"Mine planning is a multidisciplinary procedure that aims to guarantee the profitability of a mining operation in changing and uncertain conditions. Mine plans are normally classified as long-term, in
Jan 1, 2016
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Characterisation Of SO2 In Off-Gas At Zimplats Smelter
By L. Mabiza
Keywords: Pyrometallurgy, furnace, sulphur, SO2, off-gas, Zimplats Zimplats embarked on an off-gas sampling campaign in December 2009 to characterise the concentration of SO2 in the off-gas from
Jan 1, 2011
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An investigation of mechanisms involved in backfill-rock mass behaviour in narrow vein mining - Synopsis
By F. P. Hassani
Today, mine backfilling has become an integral part of mining operations, both from a local and overall ground control point of view, and as regards mining techniques and environmental considerations.
Jan 1, 2008
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Energy Consumption For Kell Hydrometallurgical Refining Versus Conventional Pyrometallurgical Smelting And Refining Of PGM Concentrates - Synopsis
By K. Liddell
Current practice for the recovery of platinum group metals (PGM) from flotation concentrates is by energy-intensive smelting processes followed by separation and refining of the base and precious meta
Jan 1, 2011
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Applied Ergonomics For Operator Compartment Design In An EJC 88 XLP Loader
By S. Thorley
In engineering design of operator?s compartments, in underground mining equipment, ergonomics principles are often neglected or not given the full recognition they deserve. This paper defines ergonomi
Jan 1, 2006
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Rock avalanche run out prediction: combined application of two numerical methods
By R. Poisel, C. Scavia, Preh A., W. Roth, M. Pirulli
ABSTRACT: Two methodologies for the three-dimensional simulation of the run out of rock avalanches are presented: one based on a granular approach and the other based on a continuum equivalent approac
Jan 1, 2003
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Haul Roads Can Make Money!
By A. T. Visser
"SynopsisAlmost 20 years have passed since the cutting-edge research by Thompson and Visser on the design and management of opencast mine haul roads was conducted in South Africa. This system is based
Jan 1, 2015
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Fatigue Properties Of Fabricated Aluminium I-Beams
By M. Matema
Paper written on project work carried out in partial fulfilment of BSc (Eng.) Metallurgy and Materials Engineering Small and large welded aluminium specimens were tested in fatigue and the results
Jan 1, 2005
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Decomposition Of Li2CO3 In Existence Of SiO2 In Mould Flux Of Steel Casting
By J. -W. Kim, Y. -B. Kang, H. -G. Lee
The effect of SiO2addition on the decomposition of Li2CO3was investigated at temperatures up to 1000ºC. It was found that addition of SiO2greatly enhanced the decomposition of Li2CO3. The main decompo
Jan 1, 2004
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Genetic Algorithms and Scenario Reduction
Scenario reduction is designed for selecting a representative subset of geostatistical simulations out of a much larger set. Three steps are involved: measuring the dissimilarity between two simulatio
Jan 1, 2014
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State-Of-Art Shaft System As Applied To Palabora Underground Mining Project
As the world continues to face the turmoil of the economic environment, legislative prerequisites and physical conditions the intervention of technological development is vital for the continuation of
Jan 1, 2000
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A Simulation Model To Improve Pneumatic Intensifier Performance And Reliability
By C. Scheffer
This paper describes a model that can simulate the behaviour of a pneumatic intensifier that is generally referred to as an ?air pump? (AP). The AP is used in many South African underground mines, and
Jan 1, 2005
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Development And Implementation Of An Electrically-Powered Stope Rockdrill For Tautona Mine - Synopsis
By A van Jaarsveld
Environmentally-friendly, safe and cost-effective technology for stope drilling has successfully been introduced at TauTona mine. It has enabled the problem of inadequate compressed air pressure and i
Jan 1, 2008
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Safety Considerations In Underground Logistics?A Look At Vertical, Horizontal And In-Stope Transportation Systems ? Synopsis
By S. M. Rupprecht
Transportation accounts for some 26% of all mine accidents in South Africa. Although this figure may not be as prolific as fall of grounds accidents or accidents caused by seismic events, the enormity
Jan 1, 2011
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Localized Uniform Conditioning (LUC): Method and Application Case Studies
A new method, localized uniform conditioning (LUC), was proposed in 2006 for modelling grades of small blocks of ore when data spacing is too broad for their accurate modelling by the linear regressio
Jan 1, 2014
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A Potential Method Of Containing Rockburst Damage And Enhancing Safety Using A Sacrificial Layer
Rockbursts continue to be a scourge in the mining industry, being responsible for accidents and damage to mining excavations. Although the problem has been present for more than a century, and althoug
Jul 1, 2013
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Research Into Melting And Casting Of Brass Scrap For Upliftment Purposes
By M. Moseki
Paper written on project work carried out in partial fulfilment of B.Sc. (Eng.) (Metallurgy of Materials) degree This paper presents the research into melting of scrap for job creation purposes in
Jan 1, 2002