a 2 drill rod

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.

...

DTH drilling refers to a method where the drilling bit is located at the end of a drill string, below the surface of the ground. This technique is distinguished by the use of high-performance percussion hammers, which are positioned on the drill bit. DTH drilling involves the use of compressed air to deliver rapid impacts, breaking rock into smaller fragments. This method is particularly effective in hard rock formations, making it a preferred choice for mining operations and various drilling applications.


...

Another vital aspect of resilience is the ability to maintain a sense of purpose. Having clear goals or a mission can act as a compass, guiding individuals through turbulent times. A strong sense of purpose helps maintain motivation and focus, allowing individuals to persevere even when the going gets tough. Whether it’s through personal aspirations, professional ambitions, or contributions to the community, a well-defined purpose can instill hope and ignite passion.


...