METHOD OF MINERAL DEPOSITS MINE DEVELOPMENT WHICH ARE DANGEROUS ACCORDING TO GAS DYNAMIC AND GEODYNAMIC PHENOMENA Russian patent published in 2017 - IPC E21C41/16 E21F7/00 E21F5/20 E21F17/103 

FIELD: mining.

SUBSTANCE: in the face the gas flows are separated from the explosive dust, the isolated production is prepared, isolating it from the worked out area of the face with an abutment with a manhole and a bulging shockproof damper. The nozzle of the suction gas pipe is fixed to the roof at the mine face, and the nozzle of the dust duct is installed in the lower part of the worked out space on its soil. Fans of local ventilation are turned on for the suction from the face, for the suction to the isolated working, where, together with mixing gas flows with mine dust, gas-saturated dust and coal briquettes are produced, mixing the mineral deposits detrital products and surrounding rocks, compacting them with pressure. The strength of the resulting briquettes is increased by the addition of binders, for example petroleum bitumen, and the resulting mixture is extruded through the calibration holes into the briquette container. The briquettes are then dried and sealed.

EFFECT: prevention of explosions of gas and mine dust generated during mining operations and excavating by modern high-performance complexes, the use of these gases and dust for the energy-intensive briquettes manufacture and the elimination of emissions of harmful substances into the atmosphere.

2 dwg