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2 077 677

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IPC

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Application

93056544/03, 1993-12-22

(22)

Actual filing date

1993-12-22

(45)

Published

1997-04-20

(72)

Inventor

Smoldyrev A.E.Khudoleev M.F.Velichuk T.A.

(73)

Holder

Gosudarstvennyj Nauchno-Issledovatel'Skij, Proektnyj I Konstruktorskij Institut Gornogo Dela I Metallurgii Tsvetnykh Metallov

METHOD FOR SAVING RESOURCES IN BACKFILLING THE WORKED OUT SPACE Russian patent published in 1997 - IPC

Abstract RU 2077677 C1

FIELD: mining. SUBSTANCE: backfill mixture is formed as sludge-rock composition of high density within 2,000 - 3,000 kilo per cubic meter. Tails accumulated as a result of precipitation by gravity are added to the mixture after thickening up to 0.65 - 0.75 concentration by weight. The rock in form of 0.5 - 20 mm size particles is added after sieving and crushing. Sludge-rock backfill mixture is prepared at the content of current tails and rock within 30: 70 - 60: 40 ratio. Besides, water content is maintained at the level of 14 - 18 % by weight. EFFECT: higher productivity and saving resources. 6 cl

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RU 2 077 677 C1

Authors

Smoldyrev A.E.

Khudoleev M.F.

Velichuk T.A.

Dates

1997-04-20—Published

1993-12-22—Filed

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