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  2. Black Mesa Peabody Coal controversy - Wikipedia

    en.wikipedia.org/wiki/Black_Mesa_Peabody_Coal...

    Peabody Energy developed two coal strip mines on the Black Mesa reservation: the Black Mesa Mine and the Kayenta Mine. The company pumped water from the underground Navajo Aquifer for washing coal, and, until 2005, in a slurry pipeline operation to transport extracted coal 273 mi (439 km) to the Mohave Generating Station in Laughlin, Nevada .

  3. Kayenta Mine - Wikipedia

    en.wikipedia.org/wiki/Kayenta_Mine

    The Kayenta mine was a surface coal mine operated by Peabody Western Coal Company, a subsidiary of Peabody Energy) on the Navajo Nation in northern Arizona from 1973 to 2019. [1] About 400 acres were mined and reclaimed each year, providing about 8 million tons of coal annually to the Navajo Generating Station .

  4. Nuttallburg Coal Mining Complex and Town Historic District

    en.wikipedia.org/wiki/Nuttallburg_Coal_Mining...

    Because development stretched along both banks of the river, a pedestrian suspension bridge was built across the river by the Roebling Bridge Company in 1899. [2] The mines in the area were acquired by the Fordson Coal Company in the 1920s as "captive mines" to supply coal to the Ford Motor Company's River Rouge plant in Dearborn, Michigan ...

  5. Peabody Energy - Wikipedia

    en.wikipedia.org/wiki/Peabody_Energy

    Peabody Energy is a coal mining company headquartered in St. Louis, Missouri. [4] [5] Its primary business consists of the mining, sale, and distribution of coal, which is purchased for use in electricity generation and steelmaking. Peabody also markets, brokers, and trades coal through offices in China, Australia, and the United States.

  6. Conveyor bridge - Wikipedia

    en.wikipedia.org/wiki/Conveyor_bridge

    The first conveyor bridge was built in Plessa lignite mine, Agnes according to plans of mine director Friedrich von Delius. It was scrapped in 1959 after exposure of clay beds made mining in the pit unsafe. [1] A large conveyor bridge with 200 m span and 50 m height, fed by a bucket-wheel excavator, was completed in 1930 in the Böhlen lignite ...

  7. Takraf GmbH - Wikipedia

    en.wikipedia.org/wiki/Takraf_GmbH

    The intermediate transfer point between the 2 conveyors is located in hilly terrain and, since the 4 head end drives of the longer conveyor are also located here, the conveyor drive and take-up area are mounted on a portal steel structure. These lightweight but high strength structures provide the design flexibility to accommodate the terrain.

  8. Here’s how crews will remove up to 4,000 tons of debris to ...

    www.aol.com/massive-effort-clear-baltimore...

    The largest crane on the East Coast will soon try to lift the treacherous, colossal wreckage that has hampered search crews from finding victims of this week’s catastrophic Baltimore bridge ...

  9. Bucket-wheel excavator - Wikipedia

    en.wikipedia.org/wiki/Bucket-wheel_excavator

    Project managers and operators are now able to track crucial data regarding the BWEs and other machinery in the mining operations via the Internet. Sensors can detect how much material is being scooped onto the conveyor belt, and the automation system can then vary the speed on the conveyor belts in order to feed a continuous amount of material.