Upgrading and application of mine bundle tube monitoring system
Gao Jianxin1，Gao Zhongguo1，Hou Zemin1，Liu Ding2
(1.Inner Mongolia Shuangxin Mining Institute Co.， Ltd.， Erdos 017000， China；2.Xi'an University of Science and Technology， Xi′an 710054， China)
Abstract： In view of the engineering features of Yangjiacun Coal Mine's "shallow burial depth, high mining height, and long working face", the current bundled tube monitoring system uses an air pump to pump the gas samples from the monitoring point to the ground through the bundled tube,the sample gas needs to be transported by negative pressure in a long-distance bundle tube from the sampling point to reach the well. Long-distance bundled pipes are difficult to maintain, and once air leakage occurs, the detection results will be unreliable. It takes a long time to take gas from a long distance, a cycle is long, and the analysis frequency of continuous detection was insufficient. The actual situation of negative pressure pumping gas samples was easily contaminated, the analysis and monitoring data were inaccurate, the sampling capacity was small, and the daily maintenance cost was high. The system was upgraded and transformed, combining the micro gas chromatography detection technology, the beam tube positive pressure gas transmission technology, and the data network transmission technology and other high-tech, the micro gas chromatography analysis technology was applied to the field of mine safety monitoring. The monitoring equipment was arranged underground, the positive pressure gas transmission method was used, the gas concentration was analyzed by a multi-component gas analyzer, and the transmission Data was connected to the computer through the network. For different usage scenarios such as computers and mobile phones, special software was designed to facilitate users to operate anytime, anywhere. In this upgrade, the chromatograph was installed in the underground coal mine, which can quickly and accurately analyze the fire data, monitor the trend of the underground disast
Key words : beam tube monitoring；microchromatography；multi-component gas analysis；fault diagnosis
