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最近,我矿东山零米井下进行了一次37吨炸药、1600发电雷管的大爆破。它利用了距爆破区300米远的一个井下采区变电所的电力作为大爆破的电源,并使用交流接触器在地表远距离控制分合闸(附图)。
Recently, I Mine Dongshan zero-one underground 37 tons of explosives, 1600 power generation detonator blasting. It utilizes the power of a downhole substation 300 meters away from the blasting area as the source of the big blast and uses AC contactor to remotely control the opening and closing of the earth (with photos).