MINE SECTIONAL VENTILATION METHOD Russian patent published in 1995 - IPC

FIELD: mines ventilation. SUBSTANCE: method of mine ventilation provides for fresh air stream feeding and removal of outgoing air stream with the help of exhaust ventilator in central section along trunks and in flank sections - along boreholes and ventilation of main workings, connecting flank sections with central one. In flank sections air feeding is exercised by borehole due to pumping, value of which under given amount of air is chosen equal to force, that overcomes air resistance of just the borehole. Main workings are ventilated by controlled feeding of part of air from shaft with fresh air stream at minimum allowed speed to one of them. Removal of the air is exercised together with part of outgoing air stream from flank section through the rest main workings and then through shaft with outgoing air stream at extremely allowed speed of air. Consumption of air matches depression of pumping and exhaust ventilators in boreholes according to given mathematical dependances. EFFECT: method is used in mines ventilation. 2 dwg, 1 tbl