About Split down-the-hole drill rig operation
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About Split down-the-hole drill rig operation video introduction
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6 FAQs about [Split down-the-hole drill rig operation]
What is a down the hole drilling rig?
Down the hole drilling rig is an impact rotary drilling rig. Its internal structure is different from that of a general rock drill.
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 are the disadvantages of a DTH drilling rig?
Conventional drilling rigs have cumbersome groundwork in bedrock drilling, frequent lifting and lowering of the drill, large labor consumption, slow speed, and comprehensive calculation of capital consumption, and these disadvantages are difficult to change. DTH drilling rigs mainly use compressed air.
What is a uniform drilling process?
After mastering the hardness of the rock to be drilled and the optimal feed rate, transition to the uniform drilling process. In uniform drilling, the operator must accurately grasp the relatively uniform pressure and moderate speed to swing the drilling tools down the hole.
What happens after re-swinging drilling tools?
After re-swinging the drilling tools, the process described above is repeated. It is the drilling method of intermittent tool swinging. This method of slagging times and slagging requirements with other methods are no different, generally about half a meter to clear the hole, slagging once.