Cutter-loader apparatus having overhung shearer drum

Details Cutter-loader apparatus having overhung shearer drum Cutter-loader apparatus having overhung shearer drum

1981-09-25

1984-05-01

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Cleansing fluid passage

299 90, 299 44, E21C 2560

Patent

active

044457243

ABSTRACT:
A long wall mining machine includes a drum cutter-loader and face conveyor wherein the drum cutter-loader is overhung and is supported by a support arm adjacent to the mine face. Nozzles direct high pressure liquid jets against the forward edge of the support arm to cut away the mining face and permit the face side support arm to advance as the mining machine advances. In one embodiment the nozzles are provided along an inclined cutting edge at the forward end of the support arm. Such nozzles may be fixed or oscillating. In an alternative embodiment the nozzles are provided in the cylindrical edge zone of the shearer drum and direct the high pressure fluid jets against the cutter edge at the forward end of the support arm.

REFERENCES:
patent: 1530768 (1925-03-01), Haag
patent: 1700294 (1929-01-01), Levin
patent: 3563324 (1971-02-01), Lauber
patent: 3957305 (1976-05-01), Peterson
patent: 4049318 (1977-09-01), Fruin
patent: 4243268 (1981-01-01), Lobbe et al.

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