METHOD OF EXTINGUISHING MINE FIRES AND DEVICE FOR METHOD EMBODIMENT Russian patent published in 2002 - IPC

FIELD: mining industry; methods and devices for prevention and extinguishing of underground fires with inert suspensions through holes from surface. SUBSTANCE: method includes drilling of prophylactic hole from day surface to gob space with installation of nitrogen heat exchanger for sealing of hole mouth and supply through them of components in the form of foaming solution for formation of inert foam; formation of barrier isolating stopping by supply of filler in the form of fly ash with simultaneous wetting with foam. Preliminarily formed near mouth of prophylactic hole, drilled from surface to mine emergency district is mounting chamber in the form of heat-insulating niche in bed floor for installation of remote evaporating unit of gaseous nitrogen aerosol supplied from automobile gasifier. After sealing of hole mouth, supplied to remote evaporator is compressed gas. Heat carrier in the form of flowing warm water supplied from fire tank is supplied to mounting chamber. Additional hole is drilled and additional barrier isolating foam stopping is formed in gob space. In this case, isolating barrier stopping is formed in gob space by supply of components through prophylactic hole. Then discharged to beyond prophylactic hole is flowing warm water from mounting chamber discharge. Mounting chamber has removable hatch with branch pipe for discharge of excessive heat carrier to surface and casing pipe on neighboring mouth of prophylactic hole. EFFECT: higher stability and operating efficiency if gasifier due to improved sealing and supply of gaseous product through additional heat carrier. 4 cl, 1 dwg