DEVICE FOR SUPPRESSION OF FIRE AND AIR SHOCK WAVE ENERGY Russian patent published in 2003 - IPC

FIELD: mining, particularly, safety engineering in underground mineral mining; applicable in suppression of fire and energy of air shock waves in explosion of gas and cool dust, and in blasting operations in gassy and dusty mines. SUBSTANCE: device has flexible water-filling vessels secured to frame. Device is made of a row of carrying frames successively installed along length of mine working, each located under roof and secured for possible closing of working cross-section. EFFECT: simplified design, simultaneous fulfilling of function of fire extinguishing and damping of air shock wave energy, and ensured safe work at emergency section. 5 cl, 3 dwg