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Underground Longwall Coal Mining
Transcript of Underground Longwall Coal Mining
and Computer Modeling Michaela Crum
Geological Engineer Safest form of underground coal mining
High coal recovery (80%)
Productive and cost effective Must have favorable geological conditions:
Large coal reserve
Coal seams are flat & uniform
Good roof & floor conditions
Reasonable methane gas content Equipment Anatomy of a Longwall Mine Maingate Gate Roads Bleeders Setup Room Recovery Room Benefits Longwall Plow Shearer Shields Continuous Miner Shuttle Car Timing and Planning Equipment Typical Delays