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Coal mining | World Coal Association

Over 7269 million tonnes (Mt) of hard coal are currently produced worldwide and 787 Mt of lignite. Coal is mined by two methods: surface or 'opencast' mining, and underground mining.

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basic mining process/terminology : associated functions : list of general mining equipment suppliers & contractors

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Coal mining - Wikipedia

Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content, and, since the 1880s, has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production.

Coal Mining Sector in Indonesia | GBG

Information and analysis of Indonesia's coal mining sector covering laws, regulations plus key business and investment opportunities.

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One government organization is taking the basic proximity detection systems available and advancing it to protect the operator and the continuous mining machine.

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The Journal of The South African Institute of Mining and Metallurgy JANUARY/FEBRUARY 2001 25 Introduction The potential for underground coal production from drilling or augering machines has been