Mining or in situ disintegration of hard material – Hard material disintegrating machines – With material-handling means
Patent
1986-05-16
1987-09-22
Novosad, Stephen J.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
With material-handling means
299 87, 37190, E21C 3520, E21C 3702
Patent
active
046950982
ABSTRACT:
The excavator for mining minerals, particularly for continuous strip mining of minerals, comprises a track drive, a digging unit with at least one digging roller and a connected conveyor for raw ore formed in the mining operation. The digging roller has a roller core and at least one helical digging and delivery flight. A delivery mechanism is mounted between the conveyor and the digging roller. The delivery mechanism comprises a breaking wedge and a delivery frame with a delivery opening connected to the breaking wedge. The breaking wedge extends from the underside of the delivery frame to the ground, and of course with a breaking surface thereon substantially tangent to the helical digging and delivery flight. There is a gap A between the breaking wedge and the helical digging and delivery flight of thread height H, and the sum of the gap A and the thread height H is less than the width B and the height C of the delivery opening. The conveyor is mounted on the underside of the delivery frame. The helical digging and delivery flight is a breaking tool and has a thread pitch G which is smaller than the width B and the height C of the delivery opening. The digging roller is rotatable in the working direction at the breaking wedge from below to above.
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Paurat Friedrich W.
Paurat Roland
Bagnell David J.
Dubno Herbert
Novosad Stephen J.
Ross Karl F.
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