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Secondary Crusher In The Coal Handling Plant

Secondary Crusher In The Coal Handling Plant

coal handling plant primary and secondary crusher house. Glossary of Mining Terms - Kentucky Coal Education. A. Abutment - 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 .

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