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Drehrohröfen

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Dubbel

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Zusammenfassung

Drehrohröfen werden zur thermischen Behandlung von granular und stückig anfallenden Materialien eingesetzt. Der Größenbereich der Materialien reicht von einigen µm bis hin zu einem Meter wie beispielsweise bei Abfällen. Zum Transport der Materialien werden diese einem leicht geneigten, sich drehendem Rohr zugeführt, worauf der Name gründet. Die Bewegung des Materials ist in Bild 1 veranschaulicht. In Längsrichtung fällt die Betthöhe des Materials kontinuierlich wie bei einer fließenden Flüssigkeit ab. Durch die Abnahme der potentiellen Energie wird die Reibung überwunden. Die Drehung fördert das Fließen des Materials. An der Wand wird das Material angehoben, wobei es relativ zur Wandbewegung in Ruhe bleibt. Auf einer schmalen Schicht rutscht das Material dann wieder abwärts. Nur während dieses Abwärtsfließens wird das Material auf Grund der Neigung in Längsrichtung transportiert. Zwischen Hubregion und Gleitschicht findet ein Queraustausch des Materials statt, was die Durchmischung fördert.

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Authors and Affiliations

  1. Magdeburg, Deutschland

    Dr.-Ing., Prof. L. Mörl & E. Specht

  2. Wendelstein, Deutschland

    F. Becker

  3. Technische Universität Berlin, Berlin, Deutschland

    Dr.-Ing., Prof. H. Gelbe†

Authors
  1. F. Becker
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  2. Dr.-Ing., Prof. H. Gelbe†
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  3. Dr.-Ing., Prof. L. Mörl
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  4. E. Specht
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Editors and Affiliations

  1. Otto-von-Guericke-Universität Magdeburg, Magdeburg

    Karl-Heinrich Grote Professor Dr.-Ing.

  2. Rheinisch-Westfälische Technische Hochschule Aachen, Aachen

    Jörg Feldhusen Professor Dr.-Ing.

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© 2011 Springer-Verlag Berlin Heidelberg

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Becker, F., Gelbe†, H., Mörl, L., Specht, E. (2011). Drehrohröfen. In: Grote, KH., Feldhusen, J. (eds) Dubbel. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-17306-6_164

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