VENTING OF EXTRACTION BLOCK AT INVERSE WORKING OF ON-DIP MINERAL Russian patent published in 2015 - IPC E21F1/00 

FIELD: mining.

SUBSTANCE: claimed method comprises the steps that follow. Fresh air is forced into mining gate to withdraw used air via spouts into conveyor-vent gate. Minimum and maximum thermal depressions h_{e min} and h_{e max} originating between mining gate and spouts h_e2 and h_e3 and between mining gate and conveyor-vent gate h_e1,respectively, are pre-calculated. Each of h_e2 and h_e3 is calculated with allowance for bord inclination angle γ relative to mining gate axis. Calculation results are used to select the sections of mining gate which need the venting. Conveyor-vent gate is driven parallel with or at the angle to mining gate axis. Note here that fresh air is forced into the bords with the help of local venting blowers. The latter are designed to vary the efficiency with the bords mining subject tom and maximum magnitudes h_{e max} and h_{e min} of values h_e2 and h_e3, respectively and at the bord blind mining and the bord through venting depending upon angle γ. Besides, to prevent air leaks from mining gate into conveyor-vent gates, mucks are provided with appropriate anti-leak means.

EFFECT: higher efficiency of claimed process.

2 cl, 3 dwg