Device for directional drilling of V hole in soil and use method thereof

Abstract

The invention relates to a device for directional drilling of a V hole in soil and a use method thereof. The device comprises a rack, and further comprises a displacement mechanism arranged on the rack, one end of the displacement mechanism is sequentially provided with a lengthened drill rod and a V drill bit, the top end of the displacement mechanism and the top end of the lengthened drill rod are inserted into the corresponding lengthened drill rod and a bearing casing pipe of the V drill bit, a posture detector is embedded in the V drill bit, a main spray opening is arranged on the V drillbit, auxiliary spraying openings are formed in two wings of the V drill bit, one side of the rack is provided with a high-pressure water hose connected with the main spray head and the auxiliary spray openings through a main pipe, electromagnetic valves are arranged on the auxiliary spray openings, and the electromagnetic valves and the posture detector are connected with a drill bit posture controller. In the drilling process, the drill bit posture can be continuously detected, when it is found that the fixed direction is deviated, the electromagnetic valves, corresponding to the direction spray openings, on the drill bit can be closed or turned down in time, the pressure of a spray-out water column is changed, and the drilling direction is corrected.

Description

technical field [0001] The invention relates to the technical field of ion-type rare earth mining engineering, in particular to a device for directional drilling of V-shaped holes in soil and an application method thereof. Background technique [0002] In the in-situ leaching process, there is a liquid injection / collection project. The principle is to arrange a number of liquid injection holes (wells) on the top of the ore body (also the mountain body), inject the leaching agent through the liquid injection holes (wells), and pass through the rare earth ore body. When exchanged with rare earth ions to form rare earth leachate, it seeps down; at the bottom of the ore body, there is no ore belt to arrange interception and liquid collection projects to collect the rare earth leachate that seeps down. The liquid collection project generally constructs dense circular diversion holes in the lower part of the ore body, crosses the bottom of the ore body horizontally, and the depth ...

AI Technical Summary

Problems solved by technology

For example, the problem that the circular diversion hole excavated by the directional diversion hole punching device with the publication number CN108661560A has the problem that there is a gap between the holes, and a continuous and complete intercepting surface cannot be formed, and the rare earth leachate will pass through the two holes. The gap leaks into the underground soil, not only the loss of resources, but also the erosion of soil and water systems, causing serious environmental pollution

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