MINE VENTILATION METHOD Russian patent published in 1998 - IPC

FIELD: mining industry. SUBSTANCE: this can be used for ventilation of underground mine workings. According to method, installed in ventilation system are partitions which pass air flow in normal direction and limit air flow in reverse direction. In this way, restricted is air flow to some underground workings and intensified is air flow to other underground working due to redistribution of overall air flow. Application of aforesaid method ensures required distribution of air flow at changing to reverse direction of air flow in case of occurring emergency situations or necessity of evacuating people from mine. EFFECT: higher efficiency. 3 dwg