Dry Processing for Coal Preparation
R1500,00
Description
Related Products
Geotechnical Factors Associated With Previously Mined Areas of Coal and Their Impact on Subsequent Extraction
2002
Masters research on pillar extraction in the Witbank Coalfield, ranking the ground conditions that decide method choice and safety, for rock engineers and mine planners.
What this report foundGeotechnical factors affecting secondary extraction were identified from interviews with collieries already re-mining pillars and with people experienced in...
R1500,00
Geotechnical factors affecting secondary extraction were identified from interviews with collieries already re-mining pillars and with people experienced in stooping, then quantified and ranked against the different aspects of the work. No single factor governs the outcome. Factors interact, so choosing a method and working safely in old workings depends on managing them together across disciplines.
Economic Coal Resources of the Highveld, Ermelo, South Rand and Sasolburg-vereeniging Coalfields
2004
Comparative ranking of coalfields inside and outside South Africa on exploration level, resource size and infrastructure, for companies deciding where to explore next.
What this report foundA rating and ranking system was applied to South African coalfields and, separately, to the coal bearing countries elsewhere in the Southern African...
R1500,00
A rating and ranking system was applied to South African coalfields and, separately, to the coal bearing countries elsewhere in the Southern African Development Community. The Waterberg ranked highest in South Africa and is the coalfield most worth detailed investigation as Witbank output declines. Botswana ranked highest among the other member states on contained resources and exploitation potential.
The impact of cattle grazing on rehabilitated land
Two annual surveys of species composition, biomass and soil sampling inside and outside fenced plots on rehabilitated pasture at an opencast colliery near Ogies, with benchmark sites for comparison.
What this report foundGrazing pressure on the rehabilitated block ran at roughly three times the estimated carrying capacity.
R1500,00
Grazing pressure on the rehabilitated block ran at roughly three times the estimated carrying capacity. The sward was dominated by low quality grasses with a high proportion of bare ground and a raised erosion risk. Fenced exclosures over one year changed the abundance of a few species, but the vegetation showed no clear direction of recovery.