The Mining Process | Introduction | underground COAL
The Mining Process Once a mining lease has been awarded to an operator, exploration (ie evaluation of the resource) takes place, followed by a planning and development process before excavation or mining begins
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Process for cleaning fine coal – US Patent 4282088 Description One source of contaminated coal of such small particle size is in mining operations wherein the mined coal containing the usual rock and other contaminating impurities is separated into fractions by passing the crushed "run of mine" coal across asizing screen deck while ,
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