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3. Open-air drilling rig: according to the different working mechanism of crushing ore and rock, it is divided into steel rope percussion drill, drilling rig, cone drill and rotary drill. Because of low efficiency, the steel rope percussion drill has been gradually replaced by other drilling RIGS. The drill pipe drives the pneumatic impactor and the drill bit to rotate together, and the piston of the pneumatic impactor is used to impact the drill bit to break the ore and rock, which is usually used in small and medium-sized mines to drill holes with a diameter of 80 to 250 mm.

1.Downhole drilling machine: When drilling a downhole gun hole with a aperture less than 150 mm, in addition to the application of a rock drill, it can also be used to drill a small diameter of 80 ~ 150 mm. When drilling a gun hole with a diameter of less than 70 mm in coal or softer mineral rock, it is generally used to drill or air drill, driven by a motor (or air motor) to drill the drill pipe, and the rock (coal) chips drilled out are discharged through the spiral groove on the drill pipe.

4. Geotechnical Engineering Bullet teeth enhance drilling capabilities for geotechnical surveys, allowing engineers to analyze subsurface conditions effectively.

Key Components of DTH Drilling Rigs

Before delving into calculations, it's key to understand how a mud pump operates. Most modern drilling rigs use either triplex or duplex pumps, which use a series of pistons to create pressure. The fluid is drawn into the pump from a storage tank and pumped down the drill string. After reaching the drill bit, the mud carries cuttings back up to the surface through the annulus (the space between the drill string and the wellbore).

Understanding the Basics of Mud Pump Function