Small Scale Coal Mining Guidelines
Plain language manual for newcomers to the coal industry, written for historically disadvantaged entrants with limited technical background and no route into the ownership and permitting process.
Sets out the steps to establish a small scale coal mine in South Africa, from mineral rights and regulatory approvals through finance, mining and processing choices, marketing, and environmental management and closure. The information a new entrant needs sits in many separate places, so the guideline draws it together from practitioners rather than from any single published source.
R1500,00
Description
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Cleaning Near Moving Conveyors
2011
First phase of a two part investigation into conveyor cleaning practice at South African coal mines, covering the legal position, current mine practice and available machinery.
What this report foundConveyance legislation promulgated in 2008 and enforced soon after left the coal industry without a lawful way to clean near and under running conveyors.
R1500,00
Conveyance legislation promulgated in 2008 and enforced soon after left the coal industry without a lawful way to clean near and under running conveyors. The first phase defined the problem, recorded the cleaning practices mines already use successfully, and built a structured database of mechanised platform options worth pursuing. High risk areas remain drives, take ups, snub and tail pulleys and transfer points.
Assessing the Ecosystem Processes of Ecological Infrastructure on Post-coal Mined Land
2017
Physical, chemical and biological sampling at two points on each of four Mpumalanga watercourses, with wetland functionality assessment and mitigation recommendations, for mine environmental and water managers.
What this report foundWatercourses on post mined land near Kriel showed deterioration in manganese, calcium, magnesium, sodium, total dissolved salts and sulphate, while other...
R1500,00
Watercourses on post mined land near Kriel showed deterioration in manganese, calcium, magnesium, sodium, total dissolved salts and sulphate, while other parameters stayed within drinking water standards. Aquatic invertebrate communities had suffered significant losses and two sites were classified as eutrophic. The water is not fit for human consumption or recreation, and a minimum 32 m buffer from wetland boundaries is recommended after earthworks.
Underground Trials of Seismic-counter and Goafing Characteristics in Pillar Extraction
2003
Underground trials at South African collieries of a seismic early warning instrument first developed for an Australian longwall, with analysis of how roof layers fail during pillar extraction.
What this report foundA stand-alone device was built that detects micro-seismicity within 100 m of the roof and raises an alarm when preset thresholds are exceeded, giving early...
R1500,00
A stand-alone device was built that detects micro-seismicity within 100 m of the roof and raises an alarm when preset thresholds are exceeded, giving early warning of goafing. Input parameters proved not to vary with geotechnical setting. Man-made noise triggering false alarms remained the main obstacle, addressed by signal conditioning and sensor placement.
Models for Predicting Methane Gas Release from Coal Seams
2005
Emission factors and calculation models for national greenhouse gas reporting, built from mine seam gas measurements and ventilation sampling, for environmental staff and inventory compilers.
What this report foundEmission factors derived from measured South African seam gas data give simple models for methane released by underground mining, surface mining and coal after...
R1500,00
Emission factors derived from measured South African seam gas data give simple models for methane released by underground mining, surface mining and coal after mining. Applied across the industry they put total methane emissions at 52 000 to 93 000 tons a year. The models follow the IPCC Tier 2 approach using country specific factors.