Drilling angle monitoring device and drilling construction method

Abstract

The invention discloses a drilling angle monitoring device and a drilling construction method. The drilling angle monitoring device comprises a water braid, a drill rod and a drilling device provided with a nozzle, wherein the drill rod is arranged between the drilling device and the water braid, and the drill rod is coaxially and fixedly connected with the drilling device and the water braid. The drilling angle monitoring device further comprises an angle sensor and an angle display device, wherein the angle sensor is fixedly connected with the water braid and used for detecting the inclination angle of the nozzle, and the angle display device is connected with the angle sensor and used for displaying the angle value detected by the angle sensor. Compared with the traditional mode that the drilling direction (angle) of branch holes is monitored through a dial, the drilling angle monitoring device can monitor the specific angle of each branch hole, and is high in monitoring precision and convenient to operate, and therefore the accuracy of the drilling direction of each branch hole can be improved.

Description

technical field [0001] The invention relates to the technical field of gas control in underground areas of coal mines, in particular to a drilling angle monitoring device. The invention also relates to a drilling construction method. Background technique [0002] At present, the intensive drilling pre-extraction method is mainly used in underground mines. The intensive drilling pre-extraction method needs to drill a large number of interlayer drilling holes from the rock roadway to the coal seam. Usually, the mother hole is constructed first, and then the sub-holes are constructed. The mother hole is for the pilot hole. [0003] In the prior art, the drilling system includes a drilling rig, a drill pipe, a drill bit, a guide, a support, a water tank, a high-pressure pump, a winch, a propulsion mechanism, a dial, a chuck, a high-pressure hose, and a self-propelled drill bit. The drilling rig is installed on the bracket, the drill pipe is connected to the drilling rig, the f...

AI Technical Summary

Problems solved by technology

However, the above method of controlling the direction (angle) of the branch hole by monitoring the rotation angle of the guide through the dial can only measure the angle of each branch hole, but cannot measure the specific angle of each branch hole, and the monitoring accuracy is low and the operation is inconvenient

[0004] Therefore, how to avoid the angle between the branch holes that can only be monitored through the dial in the prior art, and the specific angle of each branch hole cannot be measured, and the monitoring accuracy is low and the operation is inconvenient is a technical problem that those skilled in the art need to solve at present.

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