涟邵局利民煤矿一采区瓦斯涌出量大而且有煤与瓦斯突出危险,煤巷掘进过程中当发生瓦断超限或发生煤与瓦斯突出时,为能及时切断掘进工作面电源和防止排放瓦斯时误操作而提的给掘进工作面送电,我们利用ABD—1型报警断电仪并配合延时风电闭锁装置,能达到前期警报、及时断电、瓦斯浓度降低到安全浓度才能送电的目的。同时将“报警”、“断电”信号用载波送至地面值班室,以便值班人员掌握井下情况。 Lian-Shao Bureau Limin coal mine in a mining area gas emission is large and there is danger of coal and gas outbursts, when coal seam tunneling occurs when the fault exceeded or coal and gas outburst occurs, in order to cut off the power and We can use ABD-1 alarm power-off meter and delay wind power locking device to prevent pre-alarm and timely power-off when the methane emission is reduced to safe concentration The purpose of transmission. At the same time the “alarm”, “power” signal carrier to the ground duty room, in order to grasp the downhole staff situation.