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煤炭部技术发展司于一九八四年七月十三日至十五日在湖南资兴矿务局召开了KHG喷射混凝土机组鉴定会。来自全国煤炭、冶金、有色系统矿山、工厂和科研单位的八十二位代表出席了会议。我国锚喷掘进的巷道进尺居世界前列,但由于使用的喷射混凝土机作业时粉尘大、回弹损失多、机械化程度低、影响了锚喷技术的发展应用。受煤炭工业部委托,长沙矿山研究院、湖南煤炭科研所
The Technology Development Division of the Ministry of Coal Mine held a KHG injection concrete set identification meeting at Hunan Zixing Mining Bureau from July 13 to July 15, 1984. Eighty-two representatives from coal mines, metallurgical and non-ferrous metal mines, factories and research institutes attended the conference. However, due to the large dust, large rebound loss and low degree of mechanization, the application of the shotcrete spray gun affects the development and application of the anchor spray technology. Commissioned by the Ministry of Coal Industry, Changsha Institute of Mining, Hunan Coal Research Institute