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The following issues should be paid attention to when drilling with a pneumatic water well drilling rig:(1) blow holeThe test shows that when the air drill is drilling normally, observe the discharge of rock powder and cuttings at the hole and the footage. When the powder discharge and footage are normal, there is no need to lift the drilling tool. If only the footage is drilled but the powder discharge is abnormal, the drilling tool should be lifted once after a certain footage has been drilled (the impactor does not work at this time) to generate a large upward return wind speed.

The operation technology of the water well drilling rig must be cautious. In order to avoid accidents during the operation, the following will introduce the precautions for the construction operation of the water well drilling rig at work, hoping to help everyone.1. Water well drilling rig workers must master the operation essentials and comprehensive maintenance knowledge of the drilling rig, and have considerable experience in troubleshooting.2. When shipping water well drilling rigs, safety inspections must be carried out.

The 14th BICES 2017 China (Beijing) International Construction Machinery, Building Materials Machinery and Mining Machinery Exhibition and Technology Exchange Conference was successfully held at the Beijing International Exhibition Center from September 20 to 23, 2017. China (Beijing) International Construction Machinery, Building Materials Machinery and Mining Machinery Exhibition and Technology Exchange Conference (BICES) was founded in 1989. It is the earliest professional construction machinery exhibition in China that has been certified by the International Exhibition Federation (UIF).

1. Power system is the equipment that provides energy for the whole rig;2. Working system: equipment that works according to process requirements;3. Transmission system is the equipment that transmits, transmits and distributes energy for the working unit;4. Control system, control all systems and equipment, coordinate and work accurately according to the process requirements;5.

Generally, there are three sorts of rotary drilling rig, influence drilling rig and composite drilling rig.Rotary drillThe gap is fashioned by using breaking the rock stratum by way of the rotary movement of the drilling tool. It often consists of giant and small pot cone drills, superb and reverse circulation rotary desk drills, and hydraulic strength head drills machine, down-the-hole vibration rotary drill, etc.

Generally, there are three types of rotary drilling rig, impact drilling rig and composite drilling rig.Rotary drillThe hole is formed by breaking the rock stratum by the rotary motion of the drilling tool. It mainly includes large and small pot cone drills, positive and reverse circulation rotary table drills, and hydraulic power head drills machine, down-the-hole vibration rotary drill, etc. A simple rotary drill has only a drilling device, while a well-structured rotary drill consists of a drilling device and a circulating well flushing device.

1. Hydraulic oil pump: it is a duplex type. The large displacement pump provides power for the power head, and the small displacement pump provides power for four outrigger cylinders, landing mast cylinders, and afterburner/lifting pulley cylinders. 2. Four outriggers: small drilling equipment consists of hydraulic oil cylinder and fixed frame. The levelness of the body can be adjusted at the work site to support and stabilize the body.3. Mast: It is a frame structure welded by the combination of giant steel pipes, channel steel and angle steel.

       1. Operators ought to be given the education and training of the manufacturer, have a full perception of the shape and overall performance of the drilling rig, and reap positive operation and renovation trip earlier than running the machine. The product operation and upkeep guide furnished by way of the producer is the quintessential facts for the operator to function the equipment.

　　1. Operators should accept the training and guidance of the manufacturer, have a full understanding of the structure and performance of the drilling rig, and obtain certain operation and maintenance experience before operating the machine. The product operation and maintenance manual provided by the manufacturer is the necessary information for the operator to operate the equipment. Before operating the machine, be sure to read the operation and maintenance manual, and perform operation and maintenance according to the requirements of the manual.　　2.

Core drilling rigs are mainly suitable for diamond and cemented carbide exploration and drilling of solid deposits, and can also be used for drilling in engineering geology and underwater exploration, as well as ventilation and drainage of mine tunnels.The advantages of core drilling rigs are as follows:1. The core drilling rig is very light and flexible during operation, and its equipment is reliable and reliable. The structure of the core drilling rig is compact and simple.2. The core drilling rig mainly adopts hydraulic drive and modularization during the production process.