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冶金部有色司于6月在湖南湘东钨矿主持召开了重点有色矿山双机液压凿岩台车使用经验交流会议。全国15个省(区)的58个重点冶金局、矿山和院所的82位代表参加了会议。会议首先由湘东钨矿的代表介绍了推广矿山机械化的经验,今年3～5月,四条机械化作业线共掘进1893.8米,机械化作业率达66.2％,平均工效为0.61米。在会上,汝城、石人嶂、大吉山等钨矿和
Metallurgical Department of Nonferrous Division in June in Hunan Xiangdong tungsten hosted a key non-ferrous mining two-machine hydraulic drilling rig experience exchange meeting. 58 key metallurgical establishments in 15 provinces (autonomous regions) and 82 representatives from mines and institutions attended the meeting. At the meeting, representatives of Xiangdong tungsten mine firstly introduced the experience of promoting mine mechanization. From March to May this year, a total of 1893.8 meters of mechanized operation lines were dug up and the mechanized operation rate reached 66.2% with an average efficiency of 0.61 meters. At the meeting, Rucheng, Shirengou, Dayi Mountain and other tungsten ore and