抚顺龙凤矿从1966年开始采用锚喷支护,收到了良好的效果。但是在喷射混凝土过程中存在回弹率高、配水不均匀和粉尘浓度大等问题。针对这些问题,我们先后推广采用异经葫芦管、潮拌料、低风压、近距离、小粒度,龙门雾等技术,使情况有所改进,特别是在研制并使用水仓式喷枪之后取得了显著的经济效果。 Fushun Longfeng mine bolt support since 1966, received good results. However, in the process of shotcrete, there are some problems such as high rebound rate, uneven water distribution and large dust concentration. In response to these problems, we have promoted the use of such technologies as the use of exotic gourd pipes, tide mix, low wind pressure, short distance, small grain size, and gantry fog to improve the situation, especially after the development and use of a water spray gun Significant economic effect.