METHOD FOR SELECTIVE EXTRACTION OF MINERAL RESOURCES OF BED Russian patent published in 2007 - IPC E21C41/16 

FIELD: mining industry, possible use during selective extraction of mineral resources with streak of valuable rock.

SUBSTANCE: method includes using cleaning combine to separately extract mineral resource and streak of valuable rock, dividing flows of mineral resource and streak in cleaning face and transportation of rocks of mineral resource and streak up to surface. Firstly, during movement of cleaning combine directly, a strip is extracted in streak, extracted mass is loaded up onto face conveyor and via conveyor drift is transported to main transport means, and dispensed further onto surface. During reverse movement of cleaning combine a strip of mineral resource is extracted, extracted mass by means of face conveyor is transported to conveyor drift, along which it is transported to main mine. Between extraction of strips of streak of valuable mineral resource, temporary pause is maintained, during which end operations are performed and loading of mass being transported onto appropriate main mine transport vehicles is controlled.

EFFECT: increased efficiency of extraction due to selective extraction of mineral resource and streak and separate dispensing thereof onto surface via existing transport chain.

1 dwg