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Which Machine Is Used For Removing Overburden Li Ne In Coal Reservoir

Which Machine Is Used For Removing Overburden Li Ne In Coal Reservoir

11 Surface mining can be used when the coal is buried less than about 60 m underground. Giant machines remove the top soil and layers of rock known as overburden to expose the coal seam. Ideally, once the mining is finished, the dirt and rock are returned to the pit, the topsoil is replaced, and the area is replanted. Modern mining methods allow us to easily reach most of our coal reserves ...

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