METHOD OF ISOLATION OF EMERGENCY DISTRICT IN UNDERGROUND MINING Russian patent published in 2000 - IPC

FIELD: mining; applicable in isolation of emergency districts from acting adjacent mine workings. SUBSTANCE: method includes drilling of hole and construction on way of fire spreading of isolating barrier bulkhead by forcing into working of isolating filler with swelling component. Forcing into working of isolating filler is carried out simultaneously with supply of loose material onto ejector device found on end of hole casing and spraying through drilling rod of finely dispersed solution of foaming agent or liquid hardener with ejection in this case, of mine atmosphere of emergency district with low content of oxygen for spraying of loose material flow. Secured to one channel of ejector device is inflatable cloth rod activator of heap piling of body of isolating barrier bulkhead. EFFECT: higher efficiency. 2 dwg