PROCESS OF VENTILATION OF CHAMBERS WHEN DEVELOPING THICK SEAM BY CHAMBER MINING SYSTEM Russian patent published in 1998 - IPC

FIELD: mining industry. SUBSTANCE: process of ventilation of chambers when developing thick seam by chamber mining system is intended for ventilation of Tee chambers and for provision of safe operations thanks to proper directions of streams of fresh and polluted air. Fresh air is supplied from transportation heading into left and center working chambers for flow-about of breakage faces with the aid of fan of local ventilation with pipe-lines installed behind interchamber connections nearest to faces. Polluted air from faces of left and center chambers is removed over nearest interchamber connections into right chamber and from there over ventilation connection into common ventilation heading. Interchamber connections connecting center and right chambers with exception of one nearest to faces and entrance to right chamber are sealed by ventilation dams to decrease air leakage. EFFECT: improved efficiency and safety of mining operations. 2 dwg