-
-
-
-
Honor
-
-
-
-
-
Contact
-
What is twist drill pipe, beneficial mining technology twist drill pipe characteristics?
Release time:
2019-07-19
Author:
Source:
Shandong Yikuang Drilling Technology Co., Ltd. produces all kinds of geological drill pipes, spiral drill pipes, triangular heavy-duty grooved drill pipes, special-shaped multi-angular grooved drill pipes, coal drill pipes, drill bits, drill pipes, etc., with complete specifications! Strength manufacturers, trustworthy! company set research and development-production-sales-sales as one, welcome customers to purchase, tel: 0635-2311078
Yikuang technology twist drill pipe is based on the high torque performance of geological drill pipe, using single spiral blade or double spiral blade, through prestressed winding, fully automatic welding. The drill pipe body is made of high-grade special alloy steel pipe for geology, and the drill pipe joint is made of high-quality alloy structural steel, which is manufactured by high-pressure forming, vacuum conditioning and friction connection.
auger drill pipe
Scope of application
In the existing technology, the use of spiral drilling in soft outburst coal seam mines.twist drill pipeThe blade is a rectangular blade. When drilling, the inner wall of the hole is easily scratched by the rectangular blade (wing), which leads to unstable drilling and low relative drilling efficiency.
Commonly used in beneficial mining technologytwist drill pipeThere are two types, threaded connection type twist drill pipe and bolt connection typetwist drill pipe. During the drilling process, the threaded twist drill pipe cannot be reversed, and the ability to deal with accidents such as hole collapse and buried drilling is poor. The bolt-connected twist drill pipe is twisted by plane matching, and the bolt-connected twist drill pipe transmits pulling force, thus realizing the function of forward and reverse rotation and pulling-up of the spiral drill pipe. In recent years, many mines use bolt-connected twist drill pipe for gas drainage drilling in soft outburst coal seam, which greatly improves the hole-forming rate and depth of gas drainage drilling in soft outburst coal seam. However, the bolt connection type twist drill pipe joint currently used in the market has a straight prism fit with a single bolt or an elastic U-shaped connecting pin. Due to the poor operating conditions and complex stress of drill pipes in coal mines, it is difficult to plug and match the straight prism mating surface once impurities are clamped in. Single pin connection has poor reliability and cannot realize the sealing function of drill pipe, which cannot meet the demand of drill pipe for wind pressure drilling. The elastic U-shaped connecting pin only relies on the elastic tension between the pin legs to be fixedly connected with the joint, which is easy to fall off during use, causing the drill pipe disconnection, in addition, the elastic U-shaped connecting pin has more parts exposed to the female joint, which hinders the chip removal channel and affects the powder discharge of the spiral drill pipe, thus restricting the popularization and use of the twist drill pipe.
Product Features
Beneficial Mining Technologytwist drill pipeIt is a spiral blade welded on the rod body of the outer flat drill pipe, which is suitable for relatively simple soft formations. It has the characteristics of good slag removal effect, fast drilling speed, good drilling and forming, and not easy to get stuck.
Shandong Yikuang Drilling Technology Co., Ltd. produces all kinds of geological drill pipes, spiral drill pipes, triangular heavy-duty grooved drill pipes, special-shaped multi-angular grooved drill pipes, coal drill pipes, drill bits, drill pipes, etc., with complete specifications! Strength manufacturers, trustworthy! company set research and development-production-sales-sales as one, welcome customers to purchase, tel: 0635-2311078
Key words:
Geological Drill Pipe, Spiral Drill Pipe, Air Drill Pipe, Triangular Drill Pipe, Rib Drill Pipe, Drill Pipe
