FIELD: mining industry. SUBSTANCE: method can be used for ventilation of deep pits and quarries. Method implies creation of air exchange between working zones and surface of quarry by means of one or several flexible air ducts which are displaced inside quarry space. Air exchange is carried out through air ducts which are lighter than air. Application of aforesaid method allows for reducing capital input for ventilation together with increased safety conditions for workers. EFFECT: higher efficiency.
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF VENTILATION OF DEEP OPEN PITS | 1999 |
|
RU2164602C2 |
| METHOD OF ARTIFICIAL VENTILATION OF OPENCASTS | 2002 |
|
RU2215157C1 |
| VENTILATION COMPLEX | 2000 |
|
RU2169269C1 |
| FLEXIBLE VENTILATION PIPELINE | 1999 |
|
RU2150583C1 |
| FLEXIBLE VENTILATION PIPELINE | 2000 |
|
RU2186219C2 |
| METHOD OF ARTIFICIAL VENTILATION OF DEEP OPENCASTS | 2000 |
|
RU2172839C1 |
| METHOD FOR OPENCAST MINING OF MINERALS | 1995 |
|
RU2112880C1 |
| METHOD OF OPENCAST MINING OF MINERAL DEPOSITS | 2002 |
|
RU2213224C1 |
| DEVICE FOR EXCAVATION OF ROCK IN QUARRY | 1998 |
|
RU2148714C1 |
| TRANSPORTATION COMPLEX FOR OPENCAST MINING OPERATIONS | 1996 |
|
RU2133341C1 |
