2-дюймовое скальное бурение
4. Kết luận
2. Drill String The drill string is a series of interconnected pipes that transmits drilling fluid and rotational force from the surface to the drill bit. It consists of drill pipes, heavy-weight drill pipes, and drill collars. The drill string must be robust enough to withstand the high pressures and stresses encountered during drilling.
A DTH hammer is a type of percussion drilling tool that functions by delivering a series of rapid impacts to the drill bit, which then breaks the rock or other materials beneath the surface. The term down-the-hole refers to the hammer being placed directly above the drill bit, allowing the energy from the hammer to be transferred efficiently into the drill bit. This method enhances the speed and effectiveness of drilling operations, particularly in hard rock formations.
(2) If the shaft is different from the stuffing box axis, it is mainly due to processing errors and incorrect installation. Then pay attention to check whether the installation is correct after installation. If the sealing water ring is badly worn, a new water ring needs to be replaced. If the sealing water pipe is blocked, the sealing water cannot enter the middle of the packing, resulting in rapid wear of the packing, resulting in material leakage, you should dredge the blocked water pipe and keep the sealing water clean.
(2) If the shaft is different from the stuffing box axis, it is mainly due to processing errors and incorrect installation. Then pay attention to check whether the installation is correct after installation. If the sealing water ring is badly worn, a new water ring needs to be replaced. If the sealing water pipe is blocked, the sealing water cannot enter the middle of the packing, resulting in rapid wear of the packing, resulting in material leakage, you should dredge the blocked water pipe and keep the sealing water clean.