According to the requirements of groundwater aquifers and holding point blasting construction rig, water well drilling rig exploration process has the following holding point: ① the sleeve Tho well drilling rig with large diameter. In order to facilitate the next casing string from the well outside diameter as large boxes. In order to enhance the strength of the casing wall thickness than the core drilling large. ② drill using large outlet structure, less cutting tools, large alloy sheet. In order to make the fluid flow, the majority of the drill bit for the ribs. ③ well drilling rig drill diameter, is to increase the torque decreases in the drill fluid flow resistance. ④ the use of "soft reduction, slow turn, a large amount pump" procedures in the drilling process. Gently press in soft formations, rock drillability small, light pressure can prevent broken drill Shi, therefore, to improve the state of the drill rig to the force of air compressor, to prevent the hole deviation. Slow to adapt to the wells into the hole diameter, torque and the use of technical measures, the number of revolutions of the 20 well drilling rig? Blasthole drills between 120r / min, the establishment of a number of grades, due to the large pump shake drill hole wall and the annular gap large, to make the bottom of the hole cleaned only increase firefly row to increase the flow rate between the ring cheaper to prevent debris and broken recurring accidents. Pre-submersible drilling rig safety management (1), you should check pneumatic motor rotation flexibility, rig removal of obstructions within the scope and walking on the road, and you should check the road capacity. (2) Before a job, you should check the drill, propelling mechanism, electrical system, compressed air systems, duct and dust-proof devices, confirmed intact before use. (3) job, you should start the vacuum cleaner, always observe the sound functioning of the impactor and machinery, such as abnormal, should immediately stop inspection, and troubleshooting. (4) When drilling, should be given plenty of water to reduce dust. Rig operations, should always observe the row powder cases, especially when drilling down, should strengthen the purge, when necessary, to drill a strong blow. (5) drilling, not reversing motor or rotating reducer should avoid tripping drill pipe. (6) before plus access drill, drill the center hole should be blown clean, avoid dirt into the impactor. Does not meet the specifications or badly worn drill shall not be used. Has been broken in the drill hole should be removed using a special tool. (7) Rig a short stop working, you should supply a small amount of compressed air to prevent the intrusion of rock powder impactor; if longer stop drilling should be lifted off the bottom of the hole impactor 1-2 m and fixed rig construction blasting. Long industry machinery (certified), the rig is provided by Shandong Machinery Co., Ltd. Dragon. Shandong Machinery Co., Ltd. Dragon (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. Long industry leader in mechanical staff warmly welcome all inquiries negotiations to create a mechanical dragon industry a better future.