爆破工程中，由于各种原因，炮孔钻好后会有积 水，不利于爆破作业，严重影响爆破效果。由于孔径小、深度大．不能用普通潜水电泵和普通的离水泵排除孔内的积水。为把炮孔内积水排干，近年来出现了多种机械式炮孔排水设备：装有全液压特制微型潜水泵的炮孔排水水车、利用压气封 Blasting project, due to various reasons, there will be after the hole drilled water, is not conducive to blasting operations, seriously affecting the blasting effect. As the aperture is small, deep. Can not use the ordinary submersible pump and drain from the hole to exclude water. In order to drain the water within the blast hole, in recent years there have been a variety of mechanical blasthole drainage equipment: full hydraulic special micro-submersible pump blasthole water wheel, the use of pressure seal