How does longwall mining improve coal recovery compared to room and pillar mining? Room and pillar and longwall are two dominant methods that account for the vast majority of underground coal… | Mining Doc
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1.9K views · 16 reactions | Following a conventional cut with a shearer to about 3 m (9.8 ft) the roof supports move forward and allow the caving of the top coal behind the roof supports a second conveyor mounted gob-side. This special LTCC method enables increased coal reserve recovery for only an incremental additional cost. This animation shows how it works. | Online Mining Exam | Facebook
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262K views · 2.2K reactions | A powerful longwall miner relentlessly carves through the coal seam deep underground, churning out tons of black rock with mechanical precision... #coalmining #undergroundmining | Mining Zimbabwe | Facebook
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