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  2. Coal mining - Wikipedia

    en.wikipedia.org/wiki/Coal_mining

    Within longwall sections, stageloaders used to transport coal from the mining face and shearers used for extraction represent some of the highest noise exposures. Auxiliary fans (up to 120 dBA), continuous mining machines (up to 109 dBA), and roof bolters (up to 103 dBA) represent some of the noisiest equipment within continuous mining sections ...

  3. Category:Mining equipment - Wikipedia

    en.wikipedia.org/wiki/Category:Mining_equipment

    Pages in category "Mining equipment" The following 77 pages are in this category, out of 77 total. ... Coal homogenization; Conveyor bridge; Corf (mining) Crusher;

  4. Tipple - Wikipedia

    en.wikipedia.org/wiki/Tipple

    Basic coal tipples simply load coal into railroad cars. [1] Many tipples had simple screening equipment to sort coal pieces by size before loading. [2] [3]: 20 A modern coal mine facility usually includes a coal preparation plant which washes coal of soil and rock, before loading it for transport to market. The term "tipple" may be used ...

  5. Vintage photos of coal miners in America - AOL

    www.aol.com/news/2017-04-24-vintage-photos-of...

    Accidents involving the improper use of equipment and collapsing mines were frequent occurrences. Coal-mining was also one of the many dangerous jobs that employed child workers. Children were ...

  6. Underground soft-rock mining - Wikipedia

    en.wikipedia.org/wiki/Underground_soft-rock_mining

    Underground soft-rock mining is a group of underground mining techniques used to extract coal, oil shale, potash, and other minerals or geological materials from sedimentary ("soft") rocks. [1] Because deposits in sedimentary rocks are commonly layered and relatively less hard , the mining methods used differ from those used to mine deposits in ...

  7. Bucket-wheel excavator - Wikipedia

    en.wikipedia.org/wiki/Bucket-wheel_excavator

    Bucket-wheel excavators have been used in mining for the past century, with some of the first being manufactured in the 1920s. [1] They are used in conjunction with many other pieces of mining machinery (conveyor belts, spreaders, crushing stations, heap-leach systems, etc.) to move and mine massive amounts of overburden (waste). While the ...