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, crawler pipe roof drilling rig , but you want to configure the debris pump (suction pump) with a vacuum pump, pipe roof drilling rig model, or configure an air suction machine (also known as gas lift method), 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-pointed hollow cone drill for clay 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. Well drilling rig on three aspects of maintenance as the focus of a mechanical equipment, pipe roof drilling rig, water well drilling rig is essential for routine maintenance, which focus to prioritize maintenance is the key piece of the weight of the weight, the formation of healthy maintenance measures can prolong life. Which is about the maintenance of the filter, the filter serves to filter out impurities in the oil or gas line role, to prevent their intrusion caused by an internal system failure, pipe roof drilling rig, various filters should be changed regularly, replace the filter, you should check whether there is a metal Attached to the old filter, if there is metal particles, it is timely diagnosis and improvement measures; pure filter used in accordance with the provisions of the machine. Grease management, use butter can reduce wear of moving surfaces to prevent noise. When the grease deposited custody can not be mixed with dust, sand, water and other impurities; second is fuel management, depending on the ambient temperature of the choice of different grades of diesel fuel, diesel oil can not be mixed with impurities, dust and water, or fuel pump will prematurely wear; high levels of poor quality fuel oil in paraffin and sulfur, the engine will cause harm; daily job to fill the fuel tank after the fuel tank to prevent the inner wall of water drops; daily work before opening the fuel tank bottom discharge valve water. Pipe roof rigs, Long industry machinery (certified), pipe roof drilling rig by Dragon Machinery Co., Ltd. Shandong. Machinery Co., Ltd. Shandong Long (www.longyejixie.com) is Tai'an, engineering machinery parts leaders, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Lung industry machinery leadership with the staff warmly welcome all inquiries negotiations to create the dragon industry machinery better future.