Wash hole means coal mine gas drainage drilling

One kind of washing coal mine gas drainage hole drilling apparatus, comprising a water tank, a high pressure pump, high pressure pipe and the high pressure hose rigid, self-feeding drill bit, a base, a winch, and other propulsion mechanism, the propulsion mechanism and a winch fixed to the base, by adjusting the components of the apparatus can be a base corresponding to a different position and angle of the borehole; high-impact drill pipe before being fed will pass through the propulsion mechanism, the propulsion mechanism thrust force by the high pressure provided to the wand along the borehole front feed; high-pressure water through high pressure when the wand and hose from the front end of the high pressure feed drills, generating high pressure water jet to collapse, rock breaking clear clogged part, and generates a force from the feed. This simple structure, small overall dimensions, and easy to adjust, easy to use in a coal mine narrow work space; the entire power line after the front pull-push force of the joint, the long distance transport can be achieved, and to prevent the tube Road stuck; Wells were washed speed, high efficiency, significant cost savings, improved gas pumping effect.