Integrated outburst detector sensor-model tests

• Published in: Journal of coal science & engineering, China Vol. 17; no. 3; pp. 232 - 236
• Main Authors: Dziurzyński, Wacław, Wasilewski, Stanisław
• Format: Journal Article
• Language: English
• Published: Heidelberg China Coal Society 01.09.2011
• Subjects: Earth and Environmental Science; Earth Sciences; Geochemistry; Geology; Geophysics/Geodesy; Geotechnical Engineering & Applied Earth Sciences; Mechanical Engineering; 动态特性; 压力传感器; 探测传感器; 模型试验; 潜在危害; 爆发; 甲烷浓度; 电源切断; methane detection; integrated outburst detector; model test; sensor
• ISSN: 1006-9097; 1866-6566
• DOI: 10.1007/s12404-011-0302-2

Outbursts of methane and rocks are, similarly to rock bursts, the biggest hazards in deep mines and are equally difficult to predict. The violent process of the outburst itself, along with the scale and range of hazards following the rapid discharge of gas and rocks, requires solutions which would enable quick and unambiguous detection of the hazard, immediate power supply cut-off and evacuation of personnel from potentially hazardous areas. For this purpose, an integrated outburst detector was developed. Assumed functions of the sensor which was equipped with three measuring and detection elements： a chamber for constant measurement of methane concentration, pressure sensor and microphone. Tests of the sensor model were carried out to estimate the parameters which characterize the dynamic properties of the sensor. Given the impossibility of carrying out the full scale experimental outburst, the sensor was tested during the methane and coal dust explosions in the testing gallery at KD Barbara. The obtained results proved that the applied solutions have been appropriate.