In the DTH drill pipe, the drill pipe is used as a support point and a component for connecting the reaming bit, and transmitting the operation, driving force, and slag pressure required to the drill bit to crush the rock formation. This kind of drill pipe is made of thick-walled seamless pipe. Today, the editor will tell you how to maintain the verticality of the DTH drill pipe?

　　1) When installing and using the DTH drill pipe, make sure that the wheel disc, the horizontal plane of the base, the pulley flange of the lifting equipment, the clamping hole of the fixed drill pipe, and the center point of the steel casing are on a vertical line, and the calibration should be checked frequently.

　　(2) Because the DTH drill pipe is long, the upper end shakes too much when rotating. Be sure to add a guide frame on the drill frame, and control the lifting tap on the drill pipe to drill along the guide frame.

　　(3) Drill pipes and connectors are inspected one by one and adjusted promptly. Actively bend and deform the drill pipe, and use a hydraulic jack to straighten it in time.

　　(4) When drilling into soft and hard rock formations with deflection, the drill pipe should be lifted to control the footage, and the drill should be drilled at a slow speed.

　　(5) After checking the specific position and specific situation of the punching deflection with a hole measuring device, generally speaking, you can hang the drill bit left and right at the deflection to scan the hole repeatedly, so that the punching is straight and the deflection is serious. Backfill sand and clay to the deviated place, and continue drilling after the sediment is compacted.

　　The above is the whole content of "How does the DTH drill pipe maintain the verticality?", I hope you can understand.