MINE VENTILATION METHOD AND DEVICE Russian patent published in 2008 - IPC E21F1/00 

FIELD: mining, particularly forced pit ventilation in the case of inverted atmosphere.

SUBSTANCE: method involves heating ground surface in place of explosion to be carried out; optimizing fuel mass in cascades by fuel mass increase in lower horizons and fuel mass decrease in upper horizons. Said method provides 30% increase of air volume displacement in pit. Device for method realization comprises siphon fuel vessels, heating units, explosive supports and blasting units arranged in each horizon, as well as control unit located in safe zone.

EFFECT: increased efficiency of cascade air-and-fuel mixture explosion and ventilation.

2 cl, 1 dwg