Water under high pressure atomization purging device of blast furnace open hole machine

The utility model relates to a high pressure water atomization blowing device for the blast furnace taphole drilling machine, which belongs to the taphole drilling machine parts. The utility model mainly comprises a casing body, an end cover, a rapping rod and an impacting pad, the rapping rod is connected with a gear component, a dynamic sealing component is arranged between the supporting sleeve and the rapping rod, a shock absorbing pad is arranged at the front end of the rapping rod, and a connector on the casing body is communicated with the rapping rod through a flow channel. The harmful vibration is absorbed by the shock absorbing pad at the front end of the rapping rod in the device; the leakage is prevented by the high pressure dynamic sealing component, even when the impacting and rotating action simultaneously happen, the high pressure water mist can only be transported to the taphole from the hole tunnel of the rapping rod, and a great part of the heat generated when working is taken away, the dri