METHOD FOR EXTRACTING PIT-FACE WITH SCRAPER WITH DISCONTINUOUSLY-CHANGEABLE CUTTING WIDTH Russian patent published in 2005 - IPC

Abstract RU 2246590 C1

FIELD: mining industry.

SUBSTANCE: method includes operations of digging with full and gradually decreasing cutting width, transporting of soil, unloading it and returning scraper to face. Digging of soil is performed along one trail by gradually decreasing cutting width in one direction, then with full width of bucket - in opposite direction.

EFFECT: higher effectiveness and productiveness.

2 dwg

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RU 2 246 590 C1

Authors

Nilov V.A.

Nikulin P.I.

Kosenko A.A.

Letunovskij K.P.

Nilova V.I.

Dates

2005-02-20—Published

2003-10-09—Filed