由于土法煉銅炉子日益增多,矿石量需要大,效率低的手锤采矿,不能满足銅的需要,因此,采取措施在一号坑布置正式采矿場开始机采,这样一方面可以作采矿开采試驗,另一方面可訓練午后的采矿队伍,同时也能供給煉爐的“粮食”。在1号硐富矿帶,采矿塲,同时据岩石及矿脉的厚度变化情况,选用了淺眼留矿法和选別回采留貧矿法,开采矿石。 Due to the increasing number of indigenous smelting furnaces, large amount of ore and low efficiency hammer hammer mining can not meet the needs of copper. Therefore, taking measures to set up a formal mining site in No.1 pit for mechanical mining can be used for mining Test, on the other hand can train the afternoon mining team, but also can supply furnace “food.” In No. 1 rich ore zone, mining 塲, at the same time, according to the variation of the thickness of the rock and the vein, the shallow-hole retention method and the selective-recovery leftover mining method were adopted to mine the ore.