OPTIMISATION OF ROOM VENTILATION IN MINES WITH DIFFICULT MINING CONDITIONS

Abstract

The article reviews the use of air flow barriers, air ejectors and air valves for reducing air volume losses and aerodynamic drag. Increased of scope of underground works causes proportional increase of the amount of air in the ventilation network of solders along with complication of mountain conditions. It also describes ventilation methods in difficult mining and technological conditions when ventilating mine solders, the distribution of air flows in the ventilation network by achieving optimal values of such indicators as air flow rate, pressure, change in air speed and pressure depending on the sectional surface of the solder.