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一、概况兰尖铁矿是我国大型露天矿之一,其运输方式为汽车平峒溜井运输。兰家火山矿区2~#溜井(以下简称兰2~#溜井)是我国第一条投产使用的大型溜井(直井),溜井直径5米,断面19.6米~2,全长400米(包括矿仓)。
I. Overview Lanjian Iron Ore is one of the major open-pit mines in China. Its transportation mode is transportation of flat-rolled chutes. The 2 ~ # slippery well of Lanjia volcanic mining area is the first large slipway (vertical well) put into operation in China, with a diameter of 5m and a cross section of 19.6m ~ 2 and a total length of 400m ).