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What is the reason for the twisting of the big rope during drilling? How to deal with it?
Release time:
2019-09-21
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Source:
Reasons for rope twisting:(1) The newly replaced wire rope is not loose. (2) The drilling tool is seriously reversed during tripping in. (3) The hook pin is not opened.
Treatment:(1) Loosen the live rope head of the big rope and loosen the torsion of the wire rope. (2) In case of reverse resistance in the drill-down, the drill-down speed can be controlled to reduce the rotation or slow down the rotation. If the hook pin is not opened, the slip can be stuck and the pulley can be rotated by human.
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