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随着矿山小型机械化的推广,喷射混凝土井巷支护的新技术,在我省有色金属矿山越来越广泛运用,它的优点也逐渐为更多的人们所认识,并得到不断的发展。实践证明,喷枪操作机械化,上料机械化等设备的配套和降低粉尘,已成为推广和发展此项新工艺的关键,也是广大矿山工人同志的迫切要求。1975年3月,在推广
With the popularization of small mechanization of mine, the new technology of shotcrete supporting in mine shaft is more and more widely used in non-ferrous metal mines in our province, and its advantages are gradually recognized by more people and have been continuously developed. Practice has proved that the operation of spray gun mechanization, mechanical mechanization and other equipment and reduce dust, has become the key to promote and develop this new technology, but also the urgent demands of the general mine workers comrades. March 1975, in the promotion