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Create Sedimentological and Structural Models to Assist in Identifying Geological Features That Impact on Mining
2001
Regional geology mapped in three dimensions from borehole data supplied by three mining groups, built for mine geologists and planners assessing seam disruption before layout design.
What this report foundA three dimensional model of the northern Witbank and Highveld coalfield was built from more than 1100 borehole logs, with strata sorted into 13 major...
R1500,00
A three dimensional model of the northern Witbank and Highveld coalfield was built from more than 1100 borehole logs, with strata sorted into 13 major groupings and surface topography taken from satellite elevation data. It runs on open source visualisation software rather than a commercial package. Delays limited coverage to about a quarter of the coalfield.
Upgrading of coal fines with a Centrifugal Concentrator
Bench and pilot testing of four centrifugal concentrator models on fine coal from two collieries, with operating variables that resisted correlation flagged for further work. For plant metallurgists.
What this report foundFour centrifugal concentrators all cut ash in fine coal, with desliming the decisive step.
R1500,00
Four centrifugal concentrators all cut ash in fine coal, with desliming the decisive step. The best unit took ash from 35.2% to 18.47% and sulphur from 0.68% to 0.36% in a single stage, raising calorific value from 23.78 to 26.16 MJ/kg. Pilot work reached 19% ash on thickener underflow and reconstituted spiral feed.