PROCESS OF VENTILATION OF END HEADINGS Russian patent published in 2000 - IPC

FIELD: mining industry, driving of end headings predominantly in gas-bearing and outburst-risky rocks. SUBSTANCE: process of ventilation of end headings includes supply of fresh air into face of end heading over pressure air line fitted with longitudinal fastener which carries paired mobile locking-unlocking devices. Simultaneously portion of fresh air from pressure air line is bled through tapping air line whose one end is located and anchored in clearance formed between paired mobile locking-unlocking devices and whose other end is unlocked in breathing zone of production personnel. EFFECT: creation of safe working conditions for production personnel. 2 cl, 1 dwg