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Yikuang Science and Technology Research and Development and Manufacture of Drill Pipe Drill Drill Rig-Introduction of Application Scope and Product Characteristics of High Pressure Sealed Triangular Drill Pipe
Release time:
2019-07-19
Author:
Source:
Shandong yi mining drilling technology co., ltd. production of drilling engineering dedicated to all kinds of geological drill pipe, spiral drill pipe, triangular drill pipe, coal drill pipe, drill bit, drill pipe, complete specifications! Strength manufacturers, trustworthy! The company set research and development-production-sales-after-sales as one, welcome customers to purchase,
Yining Technology High Pressure Sealtriangular drill pipeIt is used in coal and rock drilling operations such as high-pressure water jet-assisted drill bit drilling and air drainage drilling technology. Its function is to transmit the rotating power and feed power of the drill bit, and serve as a channel for water, wind and other media to enter the drill bit at the bottom of the hole from the power equipment outside the hole. Generally, most of the drill pipes used in Yiguang Science and Technology Mine are sealed by interference fit of taper thread or the end face connected between the top of male joint and female joint.
At present, generally only by the taper thread seal of the drill pipe can withstand 0.5 ~ 3MPa water pressure, but because the taper thread in the case of continuous disassembly of the drill pipe is worn, so its sealing ability will decrease with the increase of the degree of wear. The sealing capacity will be improved by putting a sealing ring into the end face connected to the top of the male joint and the female joint for sealing, but the sealing ring is easy to deform and fail under the extrusion of the two sections of the seal. Frequent replacement of the sealing ring reduces the drilling efficiency and increases the drilling cost. For the special processing of the sealing method due to the high precision requirements, and the construction process of serious wear and tear, making the industrial promotion of poor.
Yikuang Science and Technology High-pressure hydraulic sealing triangular drill pipe, referred to as triangular drill pipe, is divided into conical thread type, high-pressure thread sealing type and triangular insertion type according to the joint connection form. Yiguang Technology adopts high-quality medium-carbon alloy steel pipe as the drill pipe body, and the joints at both ends are made of high-quality 42CrMo material, which is formed by high-pressure treatment and vacuum conditioning treatment. Using advanced friction welding production technology, the drill pipe has the characteristics of high bending strength and firm welding, which greatly improves the mechanical properties of the product and the ability to adapt to complex geological conditions.
This series of products is a kind of application in mining coal seam gas drainage drilling operations.High-pressure water-sealed circular arc-shaped triangular drill pipe. The main body of the drill pipe is welded by the male joint, the arc transition triangular rod body and the female joint in turn. The drill pipe is formed by cutting three surfaces of a smooth round steel. Three semicircular gaps are formed between the drill pipe and the borehole wall, which expands the passage for discharging pulverized coal and gas, so that pulverized coal and gas can be discharged smoothly and avoid sticking accidents. In addition, the triangular drill pipe can play a role in drilling.
The role of secondary crushing coal, pulverized coal in the state of movement is washed out by water, so that the drilling is always maintained in a smooth state. The sealing ring placed in the straight shaft section of the male joint is in close contact with the axial surface of the straight shaft hole section of the next drill pipe female joint to realize radial sealing, and under the joint action of the tightened conical thread, it can bear a maximum water pressure of 25MPa without leakage. This product has the advantages of reasonable design, safety and reliability, good slag removal effect, deep drilling depth and good hole forming effect.
High-pressure sealed drill pipe has become the preferred type of deep hole drilling in soft geological conditions and soft coal seams.
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, triangular drill pipe, coal drill pipe, rib drill pipe
