Underground coal mine explosion-proof drilling track measurement and gas detection system and use method thereof
A detection system, explosion-proof technology, applied in the direction of measurement, earthwork drilling, borehole/well components, etc., can solve the problem of inability to accurately analyze the distribution of coal seam gas concentration, meet the explosion-proof requirements of coal mines, small size, simple and compact structure Effect
Pending Publication Date: 2021-01-22
BEIJING HEKANG SCI & TECH DEV
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Problems solved by technology
The gas detection currently on the market can only detect the total amount of gas in coal mine holes, and cannot accurately analyze the gas concentration distribution in the coal seam. Track graphics can be used for surveying and mapping, and at the same time, the gas discharge at various positions in the hole can be measured, which provides important reference for subsequent coalbed gas pore density analysis, gas extraction and drilling construction plan
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[0030] see Figure 1 to Figure 4 , shows the coal mine explosion-proof drilling trajectory measurement and gas detection system and its application method of the present invention.
[0031] The coal mine underground explosion-proof drilling trajectory measurement and gas detection system is composed of two parts: the in-hole component and the orifice equipment. The in-hole component includes an explosion-proof probe tube 2 and an explosion-proof fixing component 1. Type battery cartridge 4, explosion-proof controller 3 and explosion-proof mobile phone 5, the in-hole components are used for continuous or intermittent measurement of drilling trajectory parameters and gas concentration, and the orifice equipment is used for power supply and analysis of in-hole instruments The measurement data returned by the instrument in the hole forms the drilling trajectory and gas concentration distribution curve.
[0032] Explosion-proof fixed components 1, explosion-proof probe tube 2, ori...
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The invention relates to an underground coal mine explosion-proof drilling track measurement and gas detection system and a use method thereof. The system comprises an in-hole assembly for continuously or discontinuously measuring drilling track parameters and gas concentration, and an orifice assembly for supplying power to the in-hole assembly and forming a drilling track and gas concentration distribution curve according to measurement data returned by an in-hole instrument, wherein the in-hole assembly comprises an explosion-proof fixing assembly and an explosion-proof exploring tube, andthe orifice assembly comprises an explosion-proof controller, an explosion-proof battery cylinder and an explosion-proof mobile phone. Therefore, the underground coal mine explosion-proof drilling track measurement and gas detection system can solve the problems existing in the existing coal mine gas detection technology, is simple and compact in structure, small in size, suitable for various specifications under a coal mine, low in cost and capable of working in an explosive gas environment under the coal mine, and does not change the underground drilling process of the coal mine, and the explosion-proof design is adopted.
Description
technical field [0001] The invention relates to the technical field of underground coal mine drilling trajectory measurement and gas detection, in particular to an explosion-proof underground coal mine drilling trajectory measurement and gas detection system and a use method thereof. Background technique [0002] Borehole trajectory measurement and gas detection are technical abbreviations for continuous or discontinuous measurement of the trajectory azimuth, inclination angle and gas concentration on the trajectory formed by the drilling hole. [0003] In the known technologies, the drilling trajectory measurement technology and the gas detection have already been recognized by people. At the same time, although the underground drilling trajectory measurement system and gas detection system in coal mines have begun to be widely used, firstly, the drilling quality is detected and evaluated by the drilling trajectory measurement technology, and the gas detection system is ins...
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IPC IPC(8): E21B47/022E21B47/12E21B49/08
CPCE21B47/022E21B47/12E21B49/08
Inventor 陈永旺徐亮姜超赵楠王文耀潘军薛维温榕
Owner BEIJING HEKANG SCI & TECH DEV