FIELD: mining, open pit venting. SUBSTANCE: device includes heater placed on upper side of the open pit and connected to air duct inlet. The device is equipped with additional heaters being open to the air duct through flexible corrugated branches and flexible corrugated air distributors with pneumatic tips. Each additional heater is connected to flexible corrugated branch inlet, and pneumatic tip is made in the form of inflatable shells with size being adjustable by electropneumatic valves. EFFECT: high efficiency of venting. 2 dwg, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR VENTILATION OF OPEN-UNDERGROUND WORKINGS | 1992 |
|
RU2082010C1 |
| PLANT FOR REGULATION OF MICROCLIMATE IN QUARRIES | 1992 |
|
RU2084635C1 |
| FLEXIBLE VENTILATION PIPELINE | 1999 |
|
RU2150583C1 |
| VENTILATION COMPLEX | 2000 |
|
RU2169269C1 |
| METHOD OF ARTIFICIAL VENTILATION OF DEEP OPENCASTS | 2000 |
|
RU2172839C1 |
| METHOD OF VENTILATION OF DEEP OPEN PITS | 1999 |
|
RU2164602C2 |
| METHOD OF ARTIFICIAL VENTILATION OF OPENCASTS | 2002 |
|
RU2215157C1 |
| METHOD FOR BACKFILLING WORKED OUT SPACE IN UNDERGROUND GASIFICATION OF SOLID FUEL | 1992 |
|
RU2072037C1 |
| METHOD FOR INCREASING STABILITY OF ROOF ROCK | 1992 |
|
RU2065038C1 |
| METHOD FOR VENTILATION OF QUARRIES | 1998 |
|
RU2148717C1 |
