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Dense-medium Fine Coal Processing: Tests Conducted at South Witbank Coal Mine
2003
Pilot scale dense medium testing on fine coal at a Witbank colliery after the plant was moved from an earlier site, with sampling, efficiency and magnetite results for plant designers.
What this report foundThe fine coal dense medium pilot plant was rebuilt at South Witbank Coal Mine and run on fine coal, with tests covering single, double and three stage...
R1500,00
200319 pages
The fine coal dense medium pilot plant was rebuilt at South Witbank Coal Mine and run on fine coal, with tests covering single, double and three stage processing, the effect of recirculating load, magnetite size and losses, separation efficiency and continuous operation. The fast screen could not deliver the required capacity and was replaced by dewatering cyclones to deslime the feed.
The Estimation of Greenhouse Gas Emissions from South African Surface and Abandoned Coal Mines
2012
Direct sampling across burning, burnt out and rehabilitated dumps at surface mines covering just over half of national surface production, scaled to a national emissions estimate.
What this report foundGas sampling on coal mine dumps found rehabilitation very effective at cutting emissions.
R1500,00
Gas sampling on coal mine dumps found rehabilitation very effective at cutting emissions. Even incomplete rehabilitation held carbon dioxide below about 1 kg per square metre a year, against over 100 on unrehabilitated ground and as much as 7 000 where combustion was active, though burning areas were small. Sulphur oxides, nitrogen oxides, ammonia and methane were low.