Reverse circulation drilling rig drill rig can be composed of general circulation with positive, reverse circulation drilling mode, the main components are the same, except reverse circulation and positive cycle that: mud circulation system is: no mud pumps, drilling rigs sale, but Configuration debris pump (suction pump) with a vacuum pump, rig Which is cheap, or configure an air suction machine (also known as gas lift method), drills, or hydraulic suction machine (also known as water jet method). But most use a vacuum pump, debris pump (suction pump) with gas lift achieve reverse circulation drilling. Rig: mostly the same as the regular cycle; just airlift drilling of drill pipe (inner diameter greater than 127mm) on to a separate duct (mostly with external supply air duct). Cone Drill: 1. Three-wing single-tip drill hollow cone, specializing in the production of drilling rigs, for clayey soil, silty soil and the sand layer; for mud pump (suction) of reverse circulation. 2. Cone bit: in the sand and gravel and weathered rock better, in sandy soil, clay soil, gravel layer can also be used; for mud pump (suction) of reverse circulation. 3. Closed cylindrical cone drill: suitable for airlift (air suction lift style) reverse circulation; for clayey soil, silty soil and in the coarse sand layer. 4. Wedge hob drill: suitable for medium and hard rock, such as sandstone, limestone, egg boulder formations, rock strength is greater than 30Mpa other may be used. 5. Ball hob drill: socketed Pile drill bit. Rock strength greater than 60MPa may be used. Problem well drilling rig daily work often appears as a multi-purpose drilling rig tire type full hydraulic drilling machine, with advanced structure, easy to use, auxiliary time is short and so, but in the course of daily use will inevitably be some failures, which Xiaobian to sort out some of these common symptoms. 1, the hydraulic system is often first appear insufficient pressure. 2, the oil tank is too small or pump damage caused by high oil temperature of hydraulic system failure. 3, the viscosity of the oil pump too high or too low causes fever and severe wear. 4, the brake band on the inner surface oil slick caused by skidding winch brake. 5, rig power machine with slip clutch assembly coaxial couplings cause fever, excessive wear elastic ring. 6, friction or excessive wear and tear caused by the compression spring aging or broken clutch slipping. These are the common failure, water well drilling rig itself compact structure, strong integrity, because the complexity of the production and operation to increase the difficulty of routine maintenance, so routine maintenance should be cautious to avoid failure problems delayed production schedule. Professional production rig | Long industry machinery | drilling rig provided by Shandong Machinery Co., Ltd. Dragon. Machinery Co., Ltd. Shandong Long (www.longyejixie.com) quality of service and products, continue to receive the recognition and trust of new and old customers and the industry. Our company is a certified member of the whole alliance network operators, business alliance customer service icon on the page, you can talk directly with our customer service staff, to our future cooperation happy!