MINE VENTILATION ARRANGEMENT
Powerful ventilation units provide an air supply for ventilation of mine workings. As a rule, they are located aboveground and supply air to mine workings through a ventilation shaft.
The temperature of the air fed into a mine should be at least +2 degrees, so in the cold season, the air is heated with the help of air heaters located at the entrance to the air duct.
In addition to ventilation units, control systems, high-voltage equipment, control panels, and operator's computer (APC) are located in a machine room.
All this equipment operates in a single complex controlled by the ACS systems in automatic mode.
Air gates. The air supplied to a mine is heated by passing through the calorifier units. The gates are closed at this time. The air gates are open when the fan is in reversed mode or during the warm season when air heating is not required.
The air is supplied to mine workings through a ventilation shaft to meet the necessary standards for the concentration of explosive substances and renew the air mixture in the workings.
Operator room. The ventilation units are controlled and monitored from here. All data from the ACS are transferred to an automated operator workstation (computer – APC), where they are archived, and the ventilation unit's current parameters are displayed. Also, data on the ventilation unit operation is transmitted to a common control center of a mine