Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Patent
1991-05-10
1992-10-06
Bagnell, David J.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Floor-working
37 97, 37190, 299 67, E21C 4704
Patent
active
051525836
ABSTRACT:
A continuous-operation extraction apparatus for strip mining that is self propelled on continuous track treads. A cylindrically-shaped cutting extractor has cutting tools arranged on its peripheral surface. Recesses are provided in this peripheral surface for the transfer of extracted material through a chute to a first conveyor that is located axially within the cylinder of the cutting extractor. A second conveyor having loading carts connects with the first conveyor and receives the loosened material from the first conveyor. The first conveyor has an inside section which emerges from a front side of the cylinder and merges outside into a sloping conveyance section which extends vertically to substantially an upper edge of a chassis. An overhead ascending section is connected to the inside section and terminates in a transfer region where the extracted material is transferred to the second conveyor.
REFERENCES:
patent: 3049823 (1962-08-01), Spalding
patent: 4362237 (1982-12-01), Olsztynski et al.
patent: 4430812 (1984-02-01), Van der Ent
Grathoff Hartmut
Kurz Peter
Bagnell David J.
Fogiel Max
MAN Gutehoffnungshutte AG
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