FIELD: mining industry; applicable in natural and artificial ventilation of opencasts. SUBSTANCE: device includes barrage located in air space and held and controlled from surface by ropes with help of winches. Barrage is inflated with provision of its floatability in ambient atmosphere. EFFECT: reduced material consumption in device with increased reliability of its design. 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF ARTIFICIAL VENTILATION OF DEEP OPENCASTS | 2000 |
|
RU2172839C1 |
| VENTILATION COMPLEX | 2000 |
|
RU2169269C1 |
| FLEXIBLE VENTILATION PIPELINE | 1999 |
|
RU2150583C1 |
| METHOD OF ARTIFICIAL VENTILATION OF OPENCASTS | 2002 |
|
RU2215157C1 |
| FLEXIBLE VENTILATION PIPELINE | 2000 |
|
RU2186219C2 |
| METHOD FOR VENTILATION OF QUARRIES | 1998 |
|
RU2148717C1 |
| METHOD OF VENTILATION OF DEEP OPEN PITS | 1999 |
|
RU2164602C2 |
| TRANSPORTATION COMPLEX FOR OPENCAST MINING OPERATIONS | 1996 |
|
RU2133341C1 |
| DEVICE FOR EXCAVATION OF ROCK IN QUARRY | 1998 |
|
RU2148714C1 |
| METHOD FOR OPENCAST MINING OF MINERALS | 1995 |
|
RU2112880C1 |
