70 m 70 m drilling drilling rig structure structure consisting of machine: Trailed, vehicle type, vehicle type back machine. Generally composed of 70 m drilling machine: diesel engine, friction clutch, transmission, transfer case, drive shaft, mud pump, water pump, vacuum pump, turntable, faucets, winches, hydraulic system, control mechanism, mast, drill, car racks. Work drilling machine works 70 m 70 m drilling machine is pumping reverse circulation type. Its working principle is: the role of atmospheric pressure, circulating liquid by sedimentation through ring back to the ditch along the bottom of the wellbore flow gap, then the turntable drive drill, drill driven rotary drilling conducted by the mud pump aspiration to establish a negative pressure suction drill mud debris cavity, and then rose to tap into the sedimentation tank through mud pump large diameter drilling rig pictures circulating liquid precipitation continued inflow of large diameter borehole wells rig much money, Again and again, forming a reverse circulation drilling work. Top drive drilling rig performance advantages relative to other wells rig top drive drilling rig is drilling equipment in one of the more common equipment, top drive drilling rig used in the current coal geological exploration, drilling for new modes of production, top drive drilling rig Compared to other types of drilling rig for large diameter drilling rig parts, has many advantages, more suitable for coal geological exploration and production. Top drive drilling rig has performance advantages: 1, top drive drilling rig backreaming prevent sticking; 2, top drive drilling rig can be a good time to save orders root drill; 3, top drive drilling rig can be continuously taken core operations; 4, top drive drilling rig to better ensure the safety of production wells; 5, top drive drilling rig can operate better security, use flexible operation, can produce continuous coring. Large diameter drilling rig manufacturers _ _ Xiaxian large diameter drilling rig provided by Luoyang Prius Prius Drilling Equipment Co., Ltd. Luoyang Prius Drilling Equipment Co., Ltd. (www.zuanji888.com/) strong, credible, in Luoyang, Henan and other industry-specific equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the Prius and you hand into the brilliant, for a better future!