Coal mine drilling angle measuring system and method

An angle measurement, coal mine technology, applied in the direction of measurement, earthwork drilling, wellbore/well components, etc., can solve the problems of large difference in gas drainage drilling design, hidden dangers of coal mine gas control, long operation time, etc., to ensure success. The effect of hole quality, simple operation process and improved accuracy
CN102889075AActive Publication Date: 2013-01-23HUAINAN MINING IND GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUAINAN MINING IND GRP
Publication Date
2013-01-23

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Abstract

The invention provides a coal mine drilling angle measuring system and method; the coal mine drilling angle measuring system comprises a laser reference line transmitting device and a digital angle measuring device, wherein the laser reference line transmitting device is used for generating a first laser plane and a second laser plane, which are vertical to each other; the first laser plane is coincided with an intersecting line of inner walls of a roadway and a midline of the roadway; the second laser plane is intersected with a drill pipe to be measured; the digital angle measuring device is used for measuring the angle of the drill pipe according to the second laser plane; and the digital angle measuring device is arranged on the drill pipe intersected with the second laser plane. Through the adoption of the coal mine drilling angle measuring system and method provided by the invention, the accuracy of drilling angle measuring parameters is enhanced, the construction quality of coal mine gas treatment drill hole is guaranteed, and a gas treatment effect is enhanced.
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Description

technical field

[0001] The invention relates to mine measurement technology, in particular to a drilling angle measurement system and method for coal mines. Background technique

[0002] At present, underground gas control in coal mines has become an important topic in the prevention of coal mine gas disasters. The most effective means of gas control is gas drainage, which is usually achieved by drilling in the mine roadway. Hole precision directly affects the quality of drilling holes, and directly affects the effect of gas control.

[0003] In the prior art, the method of shifting the center line of the roadway is used to measure the drilling angle of the mine. Before the measurement of the drilling angle by the method of shifting the center line of the roadway, at least two vertical lines need to be suspended, and four technicians are required to cooperate with the operation to realize the translation of the center line of the roadway , the operation time is long. Moreo...

Claims

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