Apparatus for mining a seam, in particular of coal

Details Apparatus for mining a seam, in particular of coal Apparatus for mining a seam, in particular of coal

1994-08-01

1995-12-12

Bagnell, David J.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

With mine roof-supporting means

299 341, E21C 2556, E21C 2732

Patent

active

054743656

ABSTRACT:
A mining apparatus that works a horizontally and longitudinally extending seam having a vertical face formed by an upper hanging wall and a lower foot wall has a longitudinal row of walking props extending along the face and each having a roof-engaging cap and a floor-engaging foot. A lower longitudinally extending long-wall mining machine juxtaposed with the lower foot wall is mounted on the floor-engaging feet and is provided with an endless lower drive chain having a forward reach extending along the lower foot wall and a rear reach extending parallel to the forward reach. It also has a conveyor trough underneath the rear reach and extending longitudinally along the face and cutters and scrapers on the chain for scraping material from the lower foot wall, depositing it in the trough, and pushing the material longitudinally along the trough. An upper long-wall mining machine juxtaposed with the upper hanging wall above the lower machine is mounted on the roof-engaging caps and is provided with an endless upper drive chain having a forward reach extending along the upper hanging wall and a rear reach. Cutters on the chain scrape material from the upper hanging wall and deposit it in the trough of the lower mining machine. The trough is positioned below the upper machine to catch material scraped from the face thereby.

REFERENCES:
patent: 4883322 (1989-11-01), Blumenthal et al.
patent: 5163738 (1992-11-01), Linsingen-Heintzmann

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