SECTION OF MECHANIZED SUPPORT FOR EXTRACTION OF MASSIVE FLAT BEDS WITH COAL OUTPUT Russian patent published in 2004 - IPC

Abstract RU 2242616 C1

FIELD: mining industry.

SUBSTANCE: section has interconnected output and support portions. Support portion has base, hydraulic posts, fences. Fence is a rigid frame, having guides for hollow of cave-in extending shield with cutting tooth, inside, which tooth is connected to hydraulic jack. On cover of support portion in upper portion loosening knives are placed. Output portion has base, which is connected to base of support portion by hydraulic jack along symmetry axis, hydraulic posts, cover, in which a port is made for coal output.

EFFECT: higher safety and efficiency, higher reliability.

1 dwg

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RU 2 242 616 C1

Authors

Nikolaev A.V.

Dates

2004-12-20—Published

2003-10-09—Filed