Inspection hole drill hole drill work before as a large ore excavation machinery and equipment, before the usual start of work in general have trouble checking maintenance machinery and equipment, accident prevention failure. During normal use, the work before the job is how to prepare it? The first point is the maintenance personnel must carefully check whether gas water pipe connections are secure, there is no leak leaking phenomenon, high air pressure DTH drilling rig manufacturers, control of the entry of the phenomenon in the empty diamond drilling process, to avoid damage to the drill bit . Has filled the second point is to check the oiler oil, which is the basic common sense examination, high air pressure DTH drilling rig, power systems must be checked. The third point is to check the various parts of screws, nuts, joints, etc. is already tightened the top of the column is indeed very strong. Do the work of three of the above checks, to start submersible drilling rig began operations. 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 the high air pressure DTH drilling rig quotes, reverse circulation and positive cycle that: mud circulation system: not required mud pump, but you want to configure the debris pump (suction pump) with a vacuum pump, or an air suction machine configuration (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, Shandong High pressure submersible drilling rig in the 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. Shandong high pressure submersible drilling rig, high pressure submersible drilling rig, dragon industry machinery supplied by Shandong Machinery Co., Ltd. Dragon. Machinery Co., Ltd. Shandong Long (www.longyejixie.com) strong, credible, in Tai'an, Shandong Engineering Machinery Parts industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead industry machinery and you work long into the brilliant, for a better future!