what mining methods are they using to extract coal exxaro mine
How is coal mined and extracted? | Planète ÉnergiesJan 7, 2015 . Extracting coal from underground or open-pit mines continues to be a vital part of the world economy today. . This problem can be solved by backfilling, which consists of using mine waste to support the roof after the coal has been removed. . Working conditions in these mines are also much safer.what mining methods are they using to extract coal exxaro mine,Mining terms explained: A to Z – Anglo AmericanThe Difference Makers. Whether it's dealing directly with our products as an engineer, or with people living in mining communities, our people make a difference every day. Take a tour of a modern mine. Learn about the processes and equipment used at our mines and operations. The sound of copper. Copper and music.Coal mining | World Coal AssociationSurface mining is only economic when the coal seam is near the surface. This method recovers a higher proportion of the coal deposit than underground mining as all coal seams are exploited - 90% or more of the coal can be recovered. Large opencast mines can cover an area of many square kilometres and use very.