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Browsing by Subject "scraper conveyor"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Armored face conveyor's smooth velocity control for increased durability
    (Wydawnictwa AGH, 2017) Suchoń, Józef; Mendyka, Paweł; Tytko, Stanisław
    The article presents the concept and assumptions concerning the smooth velocity control of an armored face conveyor, and also (on this basis) the subsequent transport conveyors used in an underground coal mine. The most-important significant mathematical equations are presented, allowing us to adjust scraper movement speed to maintain a constant cross section of the transported material stream, both in the case of unidirectional and bidirectional mining. Particular attention has been paid to the zones where a longwall shearer works with a variable web, that is, when a shearer is entering into a new coal seam layer at the ends of the excavation.