Mine
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When built in 1962, this shovel was the second largest in the world. It was used for the removal of overburden in the surface mining of thin coal seams. In its lifetime, it recovered nine million tons of bituminous coal from depths of 20 to 50 feet for local electric power generation. Standing 160-feet high, weighing 5,500 tons, and moving at speeds up to two-tenths of a mile per hour, the machine stripped about a square mile each year.
YearAdded:
Image Credit:
Courtesy Flickr/KellyK (CC BY-SA 2.0)
Image Caption:
This picture of the Big Brutus Mine Shovel does not fully capture its immensity. To create a comparison, the average person would be slightly shorter than the treads, near the bottom.
Era_date_from:
1962
1987
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The largest mine hoist in the world, it serves the two incline skipways of Shaft No. 2, almost 9,300 feet long. The overhead winding drum has a diameter of 30 feet, of which the cylindrical center section is 10 feet long. The two 10-foot long end sections taper down to a 15-foot diameter. Wire hoisting ropes (almost 27 tons) could be wound onto a small end of the cylindrical drum as the other rope unwound from the cylindrical section.
YearAdded:
Image Credit:
Public Domain
Image Caption:
Quincy Mine No 2 Hoist House. Two cooling ponds sat alongside the hoist house which served the cross-compound condensed Nordberg engine. After passing through the condenser, hot water went through sprays to be cooled before recycling.
Era_date_from:
1920
1984
Innovations
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The largest mine hoist in the world, it serves the two incline skipways of Shaft No. 2, almost 9,300 feet long. The overhead winding drum has a diameter of 30 feet, of which the cylindrical center section is 10 feet long. The two 10-foot long end sections taper down to a 15-foot diameter. Wire…
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When built in 1962, this shovel was the second largest in the world. It was used for the removal of overburden in the surface mining of thin coal seams. In its lifetime, it recovered nine million tons of bituminous coal from depths of 20 to 50 feet for local electric power generation. Standing 160-… Read More