METHOD FOR ISOLATION OF EMERGENCY DISTRICT IN UNDERGROUND MINING Russian patent published in 1995 - IPC

FIELD: mining industry. SUBSTANCE: articulated folding forms in form of bag made from airtight cloth with excessive pressure relief valve is installed in the upper part of blind mine working when driving blind working in fire hazardous seams. Such blind working is furnished with spray pipeline with end device of automatic switching-on of water supply. Articulated folding forms is arranged in zone of end device of automatic switching-on of water supply. Outlet of end device is disposed in internal space of forms and equipped with ejector device for supply of foaming agent and with gas-liquid mixer connected to outlet of aerosol generator (explosive charge). EFFECT: higher efficiency. 2 cl, 1 dwg