Methods and means of monitoring of gas hazards in polish underground hard coal mines
The natural hazards especially methane,fire and rock-bump hazards make the most serious danger for present-day mines and have a crucial effect on miners safety and continuity of mining operations.Degree of these hazards increases with concentration of coal faces and use of high-duty mining methods for seams lying deeper and deeper.The interaction of natural hazards at seams liable to rock-bumps may lead to intensity both fire and spontaneous methane emission.The methane continuous monitoring systems in the range of 0÷100% CH4 including automatic power-off as well as the early fire detection systems based on measurements of CO,CO2,O2 and smoke are nowadays a standard.The improvement in efficiency of mine rescue operations can be achieved by quick reaction to the hazards.The issue concerns e.g.the mines in which the associated natural hazards may occur and where the bumps of definite energy requires an immediate power-off not only in the hazardous areas but also at ways of air flow and propagation of methane disturbances.Work safety of miners in the underground areas means also the systems of their localization and attendance in mine workings as well as the warning systems in case of hazards e.g.fire or gas and smoke propagation.The iners localization systems and loud-speaking and alarm broadcasting communication systems should be therefore disseminated to support a mine operator to withdraw the staff from hazardous areas.Detection of the state of emergency requiring mine rescue operations allows a mine operator to activate the underground signalling devices and banners showing safe escape routes.
Underground hazards Monitoring systems Sensors Ventilation
Stanislaw Wasilewski
Research and Development Centre for Electrical Engineering and Automation in Mining EMAG,Katowice,Poland
国际会议
The 2007 International Conference on Mine Hazards Prevention and Control(2007矿山灾害预防与控制国际学术会议)
青岛
英文
650-654
2007-10-17（万方平台首次上网日期，不代表论文的发表时间）