Date: Oct 13, 2022 Views:
1. After the drill bit of the water well drilling rig drills into the structure, the center drilling tool needs to be replaced in time. First, the bottom of the hole needs to be cleaned, and then the residue at the bottom of the hole is blown clean. After the drill bit stops rotating, the drill in the water well drilling rig needs to be cleaned The tool is slowly lifted upwards, and it is most suitable when the lifting force is just enough to lift the drilling tool.
2. The drill bits of the water well drilling rig are summarized during the drilling process. It is also necessary to carefully observe the follow-up situation of the casing, timely understand the specific conditions in the hole, and keep the hole clean in time when necessary, and the drill bit in the water well drilling rig is in the drilling rig. During the process, strong lifting is prohibited.
3. Sometimes there will be a lot of residual slag at the bottom of the hole of the water well drilling rig, and the rotating part of the eccentric bit will be stuck by the slag, which will affect its production. At this time, it is necessary to transport compressed air and clean the hole again. , and make the down-the-hole hammer work for a short time, and then restart the lifting operation of the center drilling tool.