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露天矿采用连续生产设备来代替间断生产设备是有很大的经济意义的,它不仅解决了整个生产的连续化,而且也便于实现自动化。过去,由于在松软矿岩中采用斗轮式挖掘机和皮带运输机,采掘效率大大提高了,生产费用迅速下降。但是开采坚硬矿岩时,由于爆破后的块度比较大,只能采用挖掘和装载、铁路或汽车运输的间断的生产方式,运输费用是很高的。特别是运距很长、坡度很陡时,矿石的运输费用往往超过总费用的50%。虽然采用了更大型的载重汽车,但是仍然没有有效地解决提高效率和减低成本的问题。因此,从五十年代以
Open-pit mines use continuous production equipment instead of intermittent production equipment is of great economic significance, it not only solved the continuity of the entire production, but also easy to automate. In the past, due to the use of bucket wheel excavators and belt conveyors in soft rock, mining efficiency was greatly increased and production costs dropped rapidly. However, mining hard rock, due to the block after the blasting is relatively large, only by mining and loading, the intermittent production of rail or motor transport, transportation costs are high. Especially when the distance is very long and the steep slope, the transport cost of ore often exceeds 50% of the total cost. Although larger trucks are used, the problem of increasing efficiency and reducing costs is still not effectively addressed. Therefore, from the fifties to