Underground intelligent drilling distance measurement and dustproof fixed-point sampling device and working method thereof

Abstract

The invention discloses an underground intelligent drilling distance measurement and dustproof fixed-point sampling device and a working method thereof. The device comprises a drilling machine, a drill rod, a drilling distance measuring instrument, a dustproof flow guide cover, a reserved guide pipe and a drilling cutting dust remover. The reserved guide pipe is fixedly mounted at the orifice of the drill hole; the outer end of the reserved guide pipe extends out of the drill hole; the upper part of the dustproof flow guide cover is arranged on the reserved guide pipe, the lower end opening ofthe dustproof flow guide cover is connected with the inlet of the drilling cutting dust remover, the drill rod is installed on the drilling machine, the drill rod penetrates through the drilling cutting dust remover and coaxially stretches into the reserved guide pipe, the drilling distance measuring instrument is fixedly arranged on the drilling machine, and the test part of the drilling distance measuring instrument makes contact with the outer circle surface of the drill rod. Intelligentization and precision of drilling length metering are realized, the precision of fixed-point sampling isimproved, a large amount of dust is prevented from entering the roadway and a good working environment is provided for underground personnel.

Description

technical field [0001] The invention relates to a coal sample or rock sample sampling tool, in particular to an underground intelligent drilling ranging, dust-proof fixed-point sampling device and a working method thereof. Background technique [0002] Gas is a relatively large proportion of coal mine accidents in my country, especially for high gas and outburst mines, the accidents will often cause mass death and injury, and the consequences are very tragic. For this reason, the elimination and management of gas is the basic criterion to ensure the safe production of mines, and gas drainage is an economical, environmentally friendly, safe and efficient method and means. The effect verification after gas drainage is an important link and basis before coal mine mining. The measurement of the borehole length is determined by manually counting the drill pipes, reducing the error caused by man-made, and realizing the intelligent and precise measurement of the borehole length. ...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a kind of downhole intelligent drilling ranging, dust-proof fixed-point sampling device and its working method to solve the problems of high labor intensity in the process of moving the drilling rig and serious wear and tear on the base of the drilling rig in the prior art; The measurement of the length is done by counting the drill pipes manually, which has not yet achieved intelligence and precision. The errors caused by human factors are large and the accuracy is low; the position, orientation and trajectory of the drill pipes during the sampling process are uncertain, and whether the predetermined The problem of coal sampling at the location; during the sampling process, due to the outflow of drilling cuttings from the borehole, dust and other harmful substances enter the roadway with the wind, affecting the air quality in the roadway and the health of the staff.

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