一、前言云锡新冠采选厂是1958年国内自行设计的使用水力机械化开采的大型露天水采水运的矿山,设计日采矿能力为6000吨,七十年代采矿能力增长到7000～7500吨,已生产24年,开采砂矿3286万吨,其中有1350万吨砂矿(约占总出矿量的41％)是通过平峒溜井运输的(见附图)。为了进一步认识、发展、完善平峒溜井运输的工艺技术,本文总结了开采高于运输沟 I. Preface The YunSai Xincuan mining and dressing plant is a large-scale open-pit water mining operation designed by the Chinese government in 1958. The designed mining capacity is 6,000 tons on the design day and the mining capacity in the 1970s is increased to 7,000-7,500 tons Production 24 years, mining 32.86 million tons of sand, of which 13.5 million tons of sand (about 41% of the total amount of ore) is transported through the flat chute (see photo). In order to further understand, develop and improve the Pingzuo chute transport technology, this paper summarizes the mining is higher than the transport ditch