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Beneficiation Technology-Introduction of High Wind Pressure DTH Drill Tooth Cloth Method
Release time:
2019-07-14
Author:
Source:
Shandong Yikuang Science and Technology Drill Pipe, Spiral Drill Pipe, Geological Drill Pipe-Sales Hotline: 13508920928,0635-2311078
There are four main types of end face design currently used for high wind pressure DTH drills: namely, end face convex type, end face plane type, end face concave type and end face deep concave center type. Yikuang technology hard alloy multi-choice ball teeth, elastic teeth or ball teeth and elastic teeth shared tooth cloth tooth way.
1. Convex type: This drill is divided into two forms, single boss and double boss end face, the latter is mainly used for large diameter down-the-hole drill. The end-face convex-type down-the-hole drill can maintain a high drilling rate when drilling hard and hard abrasive rocks, but the drilling straightness is poor, and it is not suitable for rock drilling projects with high requirements for hole straightness.
2. Face plane type: The drill bit of this shape is relatively strong and durable, suitable for drilling hard and extremely hard rocks, and also suitable for drilling medium hard rocks and soft rocks with low requirements for hole straightness.
3. Face plane type: There is a conical concave part on the end face of the drill bit of this shape, which forms a slight nucleation effect during rock drilling to maintain the centering performance of the drill bit. The drilled hole has good straightness. The drill bit has good powder discharge effect and fast drilling speed, and is currently used in the market.
4. Deep concave center type of end face: This shape of drill bit is evolved from the same type of ball tooth drill bit, and the center of the end face of the drill bit has a deep concave center part. It is used for nucleation in the process of rock drilling, and ensures the straightness of the blast hole when drilling deep holes. It is only suitable for drilling soft rock and medium hard rock.
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, new coal drill pipe, triangular drill pipe, rib drill pipe, geology, drill pipe
