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2 039 262

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IPC

(21) (22)

Application

5041970/03, 1992-05-15

(22)

Actual filing date

1992-05-15

(45)

Published

1995-07-09

(72)

Inventor

Morozov Ju.I.Serdobintsev N.G.Purtov V.A.Torro V.O.

(73)

Holder

Nauchno-Issledovatel'Skij I Proektno-Konstruktorskij Ugol'Nyj Institut

METHOD FOR MINING THICK GENTLY DIPPING COAL SEAMS Russian patent published in 1995 - IPC

Abstract RU 2039262 C1

FIELD: coal industry. SUBSTANCE: thick gently dipping coal seams are mined simultaneously by two inclined slices upwards with driving of airway common for both slices conveyer mining of lower (leading) slice to underseam roof. Upper slice is mined after full lowering of remaining coal band to position of mining the lower slice. EFFECT: increased safety of mining, higher efficiency of stope, improved ventilation and reduced fire hazard in mining thick gently dipping coal seams with difficult to cave roof. 3 dwg

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RU 2 039 262 C1

Authors

Morozov Ju.I.

Serdobintsev N.G.

Purtov V.A.

Torro V.O.

Dates

1995-07-09—Published

1992-05-15—Filed

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