一种煤矿井下深孔随钻多点采样后置式瓦斯测定装置及方法
By using a deep-hole drilling multi-point sampling post-mounted gas detection device in coal mines, rapid and accurate gas detection has been achieved, solving the problems of cumbersome operation and large errors in existing technologies, and improving the accuracy of gas prediction and operational efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
- Filing Date
- 2023-12-06
- Publication Date
- 2026-07-17
AI Technical Summary
The existing method for measuring the gas content of long-distance fixed-point coal seams in underground coal mines is cumbersome, has a long operation cycle, and the sampling technology has errors, which affects the accuracy of gas desorption index measurement and the accuracy of coal and gas outburst prediction.
A multi-point sampling post-mounted gas measuring device for deep-hole drilling in coal mines is provided, comprising a pipe body, a pressing and rotating mechanism, a coal-digging arm, and a detection cover. The deployment and retraction of the coal-digging arm are controlled by water channel switching to achieve rapid sampling and real-time detection, integrating drilling, sampling, and gas parameter measurement into one unit.
It improves the accuracy of gas desorption index measurement, reduces operating costs and risks, improves the accuracy of coal and gas outburst prediction, and enhances operating efficiency and safety.
Smart Images
Figure CN117740429B_ABST