China Drill RigsChina Drill Rigs

China Drill Rigs DTH drill rig is impact rotary drill, its internal structure is different from the general drill, its gas distribution and piston reciprocating mechanism is independent, that is, impact.The front end is directly connected with the drill bit and the back end is connected with the drill pipe.When drilling rock, the impactor dives into the hole, and through the gas distribution device (valve), the piston (hammer body) in the impactor reciprocates to strike the drill tail, so that the drill bit has impact on the rock at the bottom of the hole.The high speed swivel of the impactor in the bore is achieved by a single swivel mechanism, an electric motor or a pneumatic rotary device outside the bore, connected to the drill pipe at the rear of the impactor.The rock powder produced during drilling is flushed out of the discharge hole by the mixture gas, which is injected into the impactor by the powder discharging mechanism through the center of the drill pipe, and then into the bottom of the hole through the air groove on the impactor cylinder. There are generally three methods for fixing hydraulic drilling rigs: ground anchor, foundation, and compression column. Before fixing, check and reinforce the support condition of the construction site, clean up the site, insist on flat bottom plate, insist on dredging the back road, insist on complete ventilation, drainage, power supply, water supply, wind supply and other systems, confess the height of the drilling opening and The parameters such as left and right azimuth, drilling azimuth, angle, etc., then confess the fixed azimuth of the drilling rig and fix it. When using ground anchors, it is necessary to accurately trace the size and orientation of the anchor holes of the base, and then drill the bolt holes, equipment bolts, and bolts with full thread bolts with a diameter of not less than 22mm and a length of not less than 1500, and then lift the drilling rig. Align the anchor hole of the base with the anchor rod, and slowly drop. Each anchor rod is tightened with two nuts. When using the foundation, the depth of the foundation is not less than 1500mm, and the length and width are determined by the size of the base of the drill. When pouring concrete, anchor rods or bolts are embedded according to the size of the anchor hole of the base, and then the drill is lifted so that the anchor hole of the base is aligned with the anchor rod or bolt. Slowly fall down, and tighten each anchor rod or bolt with two nuts. When using pressure pillars, there are no less than four pressure pillars and no less than two pressure pillars; when using surface-injected single hydraulic pillars, they must be lifted and pressed firmly; when wooden pillars are selected, they must be tightened with wooden wedges. When detecting and releasing water, the distance between the fixed drilling address and the water accumulation area is less than the leading distance of the water detecting rules, or when there is water inrush, you should find a safe location to detect and release the water after the reinforcement method is adopted or the water gate is closed. The drilling site should avoid fault zones or soft rock formations. The rig must be stable and strong. When the drilling rig is installed and connected to the power supply, the principle of power outage must be strictly implemented. Construct drainage ditches according to the estimated flow, clean up roadways and hang up air ducts, cables, pipes, etc.China Drill Rigs website:http://www.jsdrilltools.com/drill-rigs/