Coring steel wire rope cleaning device for rope coring drilling tool

Abstract

The invention provides a coring steel wire rope cleaning device for a rope coring drilling tool. The coring steel wire rope cleaning device is installed at the top of a drill pile; the device is provided with a blowing cavity and a high pressure gas chamber; the high pressure gas chamber is connected with the outer side of the blowing cavity in a sleeved mode; an airtight annular cavity is formedbetween the high pressure air chamber and the blowing cavity; a high pressure gas inlet connected with a high pressure gas pipe is arranged on the outer wall of the high pressure gas chamber; sprayingnozzles are arranged on the outer wall, corresponding to the high pressure gas chamber, of the blowing cavity in the circumferential direction; a blowing cavity top cover is fixed at the top of the blowing cavity; and a steel wire rope hole is formed in the middle part of the blowing cavity top cover. The device is installed at the top of the drill pile; in the advancing process of a steel wire rope, high pressure gas flows into the blowing cavity, spraying nozzles of the blowing ejects high pressure air to continuously blow and clean the steel wire rope, so no slurry is adhered to the steelwire rope and the steel wire rope is basically in a dried status after the steel wire rope leaves the blowing cavity. The device solves the long-term problem of the slurry adhered to a coring steel wire rope, can prolong the service life of the steel wire rope, and prevent the slurry carried by the steel wire rope from polluting rope coring operators and equipment.

Description

technical field [0001] The invention relates to a cleaning device for a drilling tool, in particular to a core wire rope cleaning device for a rope core drilling tool. Background technique [0002] Wireline coring drilling is a drilling method that does not drill core or drills with few lifts. Its operating feature is that it is not necessary to lift all the drill pipe strings in the borehole when taking the core, but use a special overshot with a wire rope to lift the inner pipe at the bottom of the hole with the core to the ground through the central core hole of the drill pipe in the hole. The core can be obtained, so that the number of times of lifting and lowering the drill and the auxiliary time of lifting the drilling tool can be reduced, and the drilling efficiency can be improved. Because in this method, the steel wire rope needs to be immersed in the mud in the drill pipe when fishing the inner pipe of the core, after the fisher connected with the wire rope is hun...

AI Technical Summary

Problems solved by technology

Because in this method, the steel wire rope needs to be immersed in the mud in the drill pipe when fishing the inner pipe of the core, after the fisher connected with the wire rope is hung on the inner pipe, when the drill pipe is lifted out, the drilling fluid mud adheres to the steel wire rope, which will cause corrosion of the steel wire rope and reduce the wear and tear of the steel wire rope. In addition, during the process of lifting the inner pipe, the drilling fluid attached to the wire rope will splash on the drilling platform in the case of wind, polluting the operators and operating equipment on the drilling platform

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