Automation of Underground Coal Mines Using PLC
Authors
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CSIR-Central Institute of Mining and Fuel Research, Barwa Road, Dhanbad ,IN
R. Mandal -
Department of Mining Machinery Engineering, Indian School of Mines, Dhanbad ,INT. Maity
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CSIR-Central Institute of Mining and Fuel Research, Barwa Road, Dhanbad ,INS. K. Chaulya
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CSIR-Central Institute of Mining and Fuel Research, Barwa Road, Dhanbad ,ING. M. Prasad
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CSIR-Central Institute of Mining and Fuel Research, Barwa Road, Dhanbad ,INR. P. Verma
Keywords:
Automation, PLC, Gas Sensors, Underground Coal Mine, Hazardous Gas.Abstract
Underground coal mining requires advance instrumentation for sustainable growth and safety of miners. Many parameters, such as emission of gases, strata conditions, temperature, air velocity, humidity, etc., need to be monitored simultaneously using suitable sensors. This paper presents applications of programmable logic controller (PLC) to key activities of underground automatic mining operations is the prefered option for increasing output, with safety in gassy underground mines by way of switching off power supply when concentration of flammable gases exceed permissible limit and simultaneously raising alarm to help save miner’s valuable lives and assets mines property. Beside, PLC can be used for monitoring strata conditions.
Large scale implementation of PLC to automation in mining operations is a grey area to be explored and there is a scope to design and develop instrumentation for mines for multiple output of PLC system.
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