Mining equipment, mainly for extraction of heavy beds

Details Mining equipment, mainly for extraction of heavy beds Mining equipment, mainly for extraction of heavy beds

E - Fixed Constructions

21

D

262/54, 61/68

E21D 19/04 (2006.01) E21D 23/00 (2006.01) E21D 23/03 (2006.01) E21D 23/04 (2006.01) E21D 23/06 (2006.01) E21D 23/10 (2006.01)

Patent

CA 1156479

ABSTRACT Mining apparatus for sublevel caving is disclosed in which a single conveyor fed by a power loader is protected by a roof plate which extends substantially horizontally in contact with the roof of the bed. A back plate is joined to the roof plate and also extends generally horizontally but with a space between it and the roof. The back plate and roof plate are supported by props. A door is provided in the back plate and this can be pivoted so that its edge adjacent the roof plate moves downwardly towards the conveyor thereby acting as a chute. Pivotting is effected by hydraulic props attached to a base. When the door is in the up position it engages the underside of an edge of the roof plate thereby assisting in supporting the roof plate.

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