SYSTEM AND METHOD prevent a gas explosion in a coal mine

摘要

1. A system of preventing a gas explosion in a coal mine, characterized in that it comprises a module (1) for detecting a gas concentration detecting methane and oxygen concentration in the upper corner (10) of the working face for coal mining and substantially explosion proof control valve (2) electrically connected to the module (1) gas detection, thus substantially explosion proof control valve (2) is electrically connected with the device (12), producing an inert gas, for discharging inert gas into the top corner (10) of the working face of coal to reduce the concentration of oxygen and methane concentration, and windshield I (6) to prevent oxygen ingress from the inlet ventilation generating (8) at the upper corner (10) of the working face for coal mining, with a module (1) of the gas detection comprises at least one sensor I (1-1), determining the concentration of methane, the methane concentration detection in the upper corner (10) of the working face for coal mining and at least one sensor I (1-2), determining the oxygen concentration, the oxygen concentration detection in the upper corner (10) of the working face for coal mining, windscreen I (6) comprises a motor I (6-2), a winding drum I (6-3), connected to the output shaft of the motor I (6-2), and a windscreen I (6-3), wound on a winding drum I (6-3), wherein the winding drum I (6-3) located between two adjacent separate hydraulic struts (11) to the working face in the direction of a coal mining coal, wherein motor I (6-2) located on the individual hydraulic struts (11) of the working face of coal, exhaust side, substantially flameproof control valve (2) is electrically connected to a drive I (6-1) and the drive motor I (6- 1) The motor is electrically coupled with the ILO