我矿采用??A-100深孔钻机钻凿垂直向下炮孔,当孔深超过四～五米再往下延伸时,冲击器容易发生岩粉堵塞故障,被压停机,不能继续作业.针对这种情况,为防止故障的产生,我们采取了以下的处理方法: 当向下孔钻凿到2～3米深后,取出钻杆将孔口碎岩块清除干净,用一根长0.7～0.8米的6英寸风管,自孔口中心插入炮孔中,风管口高出底板0.2～0.4米,同时,周围用细碴填平(岩石特别破碎时需用混凝 I mine using A-100 deep hole drilling rig vertical downhole, when the hole depth of more than four to five meters and then down, the impact of rock plug prone to blockage problems, was shut down, can not continue their work. In response to this situation, in order to prevent the occurrence of failures, we have taken the following approach: When the down hole drilled to 2 to 3 meters deep, remove the drill pipe to remove the hole rock fragment clean, with a long 0.7 ~ 0.8 m of 6-inch air duct, the center hole from the hole into the hole, the air outlet above the floor 0.2 to 0.4 meters, at the same time, surrounded by fine ballast (particularly broken rocks need to use coagulation