Combine the impact function of the down-the-hole hammer with the rotation function of the rotary drilling rig, use the rotary drill as the main machine to suspend the down-the-hole hammer drill tool; use the high-power air compressor as the power source to provide high-pressure air; use the pneumatic down-the-hole hammer For drilling tools, implement percussive rotary rock drilling percussion drilling; use the air returning from the bottom of the hole as a flushing medium to provide impact power while also having the functions of cooling the drill bit, cleaning the hole and removing slag.
Construction system:
1. DTH hammer drill (including winch, gas pipe, drill pipe, etc.) + DTH hammer (including slag collecting bucket)
2. Air compressor with corresponding air pressure and sufficient air volume
3. Air storage tank + atomizer for lubrication
4. Air supply pipeline from air compressor to drilling rig
5. Protective tube (length must be lowered to the hard rock surface)
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