Dry Screening Tests Conducted With a Bivi-tec Screen
200820 pages
Screening trials at two South African collieries, one on a small test unit and one on a full scale installation, for plant staff handling fine, damp coal.
Fine coal was screened at small apertures while surface moisture stayed below about 5 per cent. Above that, fines adhered to the coarser particles and screening became very difficult. The dual vibrating polyurethane mats stopped blinding and clogging, so screening area stayed available, but the screen action still could not dislodge fines from very damp coal.
Contents
- EXECUTIVE SUMMARY2
- 1. Introduction4
- 2. Bivi-Tec screen5
- 3. Test work at Leeuwpan7
- Results obtained7
- 4 The influence of moisture on screening9
- 5 Bivi-tec Screen at New Clydesdale Colliery14
- 6 Conclusions19
- 7 Acknowledgement20
- 8 References20
How it opens
Dry screening of fine coal at small screen apertures is known to be difficult. Blinding and clogging of the screen surface occurs and the screening efficiency can be very low. The Bivi-tec screen has been named as a possible solution for dry screening of fine coal since the dual-vibratory polyurethane mats eliminate blinding.
How it concludes
R1500,00
Description
Related Products
Hydrothermal Treatment of Coal Discards and Sewage Sludge for the Production of Advanced Materials
2023
Laboratory carbonisation tests on discard and slurry samples blended with sewage sludge, with the resulting chars tested as adsorbents for dissolved pharmaceuticals. For waste and water treatment planners.
What this report foundCo-treating coal discards with sewage sludge by hydrothermal carbonisation gave hydrochars with better physicochemical properties than treating either waste...
R1500,00
Co-treating coal discards with sewage sludge by hydrothermal carbonisation gave hydrochars with better physicochemical properties than treating either waste alone. The blended hydrochar reached a surface area of 20.35 m2/g and a pore volume of 0.38 cm3/g, and removed 97.19% of nevirapine and 93.32% of lamivudine from recycled water. Routes to activated carbon and hydrogen storage were also assessed.
Multi-client Aeromagnetic Data Merge & Interpretation – Witbank Coalfield
2005
Merged magnetic coverage and dyke interpretation across most Witbank mining and exploration ground, delivered as maps and GIS files for geologists planning around intrusions.
What this report foundGovernment and industry aeromagnetic data over the Witbank Coalfield were merged into one set of maps and GIS compatible files, and roughly 1200 dyke traces...
R1500,00
Government and industry aeromagnetic data over the Witbank Coalfield were merged into one set of maps and GIS compatible files, and roughly 1200 dyke traces were interpreted from them. Purchase of a 200 m line spacing government survey removed the need for infill flying. One participating company valued advance knowledge of a single underground dyke at about R15 million.