Health and Safety CONFERENCE

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Best Practice Gas Monitoring

Dr Snezana Bajic
Technical Services Manager, Department of Natural Resources, Mines and Energy (Simtars)

Reliable gas monitoring is a key element to ensure that the mine based controls are effective.

Coal mines in Queensland and New South Wales have been facing issues in controlling tailgate methane levels and recently there have been two serious spontaneous combustion events. Legislation and Australian standards make specific requirements for the installation and maintenance of gas monitoring systems.

This paper discusses the issues related to gas monitoring, tailgate methane control, alarm set points and proposals for feedback loops on alarm notifications and acknowledgements. The paper will not discuss individual mine events but will focus on reliable gas monitoring to enable early detection and proactive actions to be taken.