Types Of Crusher Used In Mining

Crusher types used in coal mining kleinejanamsterdamypes of equipment used in coal mining crusherbutment in coal mining, 1 the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway and 2 the weight of the rocks over a longwall face is transferred to the front abutment.