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2 006 582

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IPC

(21) (22)

Application

4940538/03, 1991-03-14

(22)

Actual filing date

1991-03-14

(45)

Published

1994-01-30

(72)

Inventor

Prit'Mov V.N.Mikheev O.V.Frjanov V.N.

(73)

Holder

Sibirskij Metallurgicheskij Institut Im.Sergo Ordzhonikidze

PROCESS OF DEVELOPMENT OF STEEPLY DIPPING COAL SEAMS WITH POWERED SHIELD COAL-WINNING SETS Russian patent published in 1994 - IPC

Abstract RU 2006582 C1

FIELD: mining industry. SUBSTANCE: process provides for extraction of coal in rill breakage face, delivery of coal over transportation furnace, attachment of ventilation furnace as shield face approaches haulage level, performance of inclined seam working and cross-entries, preparation for development of second strip with erection of shield complex in hole of airway horizon, performance of cross-entries with inclination when preparing every second strip, performance of transportation furnace under inclined crosscut distance between which is set equal to horizontal projection of breakage face. EFFECT: enhanced productivity. 2 dwg

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RU 2 006 582 C1

Authors

Prit'Mov V.N.

Mikheev O.V.

Frjanov V.N.

Dates

1994-01-30—Published

1991-03-14—Filed

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