TRI-FLO™ Tests Conducted at South Witbank Coal Mine
200317 pages
Trial of an imported dense medium separator installed in a fine coal pilot plant at a Witbank mine, for plant designers weighing alternatives to cyclones.
The separator handled fine coal and produced a 28 MJ/kg product, but its measured separation efficiency was lower than that of conventional dense medium cyclones and it was harder to operate. Two efficiency tests produced no evidence that the unit outperforms cyclones on fine coal, so cyclones were recommended when the plant was rebuilt at its next site.
Contents
- EXCUTIVE SUMMARY2
- INTRODUCTION4
- OPERATION OF THE TRI-FLOWTM DENSE-MEDIUM SEPARATOR4
- TEST WORK8
- EFFICIENCY TESTS10
- COMMENTS14
- CONCLUSION15
- RECOMMENDATION15
How it opens
Jim Harrison Design Associates (JHDA), the company that will be marketing the Tri-floTM dense-medium separator in South Africa on behalf of Ecomin in Italy, requested permission to test a Tri-flo unit in the Coaltech 2020 fine coal dense-medium plant at South Witbank Coal Mine (SWC) so as to ascertain whether the Tri-flo unit would be suited to processing fine coal.
How it concludes
R1500,00
Description
Related Products
Can old bord-and-pillar workings be mapped from surface?
2016
Desktop review updating two earlier assessments, weighing borehole scanning, robots and unmanned aerial platforms as routes to locating old workings ahead of opencast drilling and blasting.
What this report foundNo surface geophysical method can map individual bords and pillars at the depths typical of the Witbank coalfield, a limit the review attributed to physics...
R1500,00
No surface geophysical method can map individual bords and pillars at the depths typical of the Witbank coalfield, a limit the review attributed to physics rather than to technology, since the targets are small relative to their depth and conductive layers often lie above the seam. Borehole laser scanning remains the workable option, with sonar suited to flooded workings.
Best Practice Guidelines for the Management of Spontaneous Combustion in Opencast Coal
2024
Guidelines drawn from site testing at opencast coal operations, including trials of gypsum and fly ash sprays applied with a hydro seeder. For pit supervisors and mine safety staff.
What this report foundPractical guidance for opencast operations covers early detection with low cost thermal cameras, prevention, and the treatment methods in current use: water...
R1500,00
Practical guidance for opencast operations covers early detection with low cost thermal cameras, prevention, and the treatment methods in current use: water sprays and cannons, sand cladding of highwalls and stockpiles, removal of burning coal by dragline, tipping into water ponds and the treatment of sinkhole areas. A three month full scale trial of sprayed fly ash as an antioxidant is reported.