Open Cast Coal Mining Basics

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    open cast coal mining basics. open cast mining · this is a very basic idea of how the open pit mining process takes place.

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    basics of openpit mining – slideshare. open cast: reclamation during mining 3. quarries: stone, crushed rock, sand, gravel 4. strip mining: removing surface coal in strips up to 50 m

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    open pit mining, also known as opencast mining, open cut mining, and strip mining, means a process of digging out rock or minerals from the earth by their elimination from an open pit or borrow.

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  • coal mining world coal association

    over 7269 million tonnes (mt) of hard coal are currently produced worldwide and 787 mt of lignite. coal is mined by two methods: surface or 'opencast' mining, and underground mining.

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