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6 FAQs about [Down-the-Hole Drilling Rig Operating Instructions]
How do drill rigs work?
Conventional drilling rigs use the power of an electric motor or a diesel engine, which is transmitted to the turntable through the operating system to drive the drill bit connected to the drill rod to grind and cut the rock to achieve the purpose of drilling. This kind of drill first solves the ground power.
How to drill a hole with a drill bit?
Specific operation method: whenever drilling begins, the operator must swing the drilling tools gradually to the bottom of the hole. When the frequency down the hole reaches 700~900 times/min and the pressure of the drilling tool on the drill bit reaches about 3kN, it can be the best impact speed.
What happens if a drill rig is not set-up correctly?
The rig must be set-up correctly in order to give stability and safety. If this is not done, the effects of feed force and rotation torque can cause the rig to move or even to over-turn. This could result in serious or fatal injury as well as damage to the drill rig and equipment.
How do you lubricate a drill rig?
rilled hole.CommissioningEnsure ha er lubricator is working. Pour 1/2 pint (0.30 litres) of ai line oil into the hammer. When attached to drill rig, blow air through to ensure all int rnal parts are lubricated. Operate at low pressure initially. Progressively increasing, during the first hour, in
What is a DTH drilling rig?
DTH drilling rig is a percussive rotary drilling rig. Its internal structure is different from general rock drilling rigs. Its gas distribution and piston reciprocating mechanism are independent. The front end is directly connected to the drill bit and the back end is connected to the drill rod.
How much water do you add to a drill hole?
A rule of thumb is to add 0,25 litres of water per m3 compressed air. The occurrence of water in the drill hole is common. Both “too little” and “too much” can be troublesome. Too little water tends to bind the drill cuttings into a paste, which sticks to the drill pipes or the hole wall and can easily form plugs.