对于地下开采的矿山,矿井主排水设备是矿山的主要用电负荷之一。矿井排水电费在单位矿石成本中所占的比例亦很大,而且目前涌水量大的矿山在不断增加。正常涌水量在3～5万吨/昼夜的矿山一般是常见的;涌水量高达8～10万吨/昼夜的矿山也有所见,然而有些这样的矿山生产规模并不大,但在原矿成本中排水电费所占比例却是惊人的。 For underground mining mines, the main mine drainage equipment is one of the major electricity load of the mine. Mine drainage electricity costs in the unit cost of ore is also a large proportion, and the current large amount of water gushing mine is increasing. Mines with a normal water inflow of 3 to 50,000 tons / day and night are generally common; mines with a water inflow of up to 80,000 to 1,000 tons / day and night are also seen, however, some such mines do not have large scale of production, but in ore costs The proportion of drainage electricity is amazing.