45K views · 420 reactions | Underground longwall mining method....
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327K views · 6.1K shares | Principles of Longwall Mining | World Mining Engineers | Facebook
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The long wall excavation method in mining is a highly efficient technique primarily used in coal mining, involving the full extraction of large rectangular coal blocks in a continuous operation. Using a long wall face, typically 100 to 300 meters long, hydraulic roof supports, or shields, hold up the mine roof while a shearer or plow cuts the coal. The coal is transported to the surface via a conveyor belt. As the shearer advances, the supports move forward, allowing controlled roof collapse, kn
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Here’s a little glimpse at my wall mining process at @herkimerdiamondmines last summer, as well as the discovery of a juicy little wall vug 🪨✨ . . . . . . . . . . . #herkimerdiamond #gem #jewel #jewelry #mineral #crystal #miner #rockhound #cluster #natural #collection #reels #geology #science #middleville #real #herkimerdiamondmines #mine #satisfying | Raw specimen
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Herk gem pops out from the sandy void pocket in the rock wall #mining #newyork #crystalsuartz #herkes | Michael Reinhart
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Herk gem pops out from the sandy void pocket in the rock wall #mini…
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Longwall Mining Method and Design - 911Metallurgist
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