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2009 | 11 | 4 | 52-56
Article title

Mixing system for highly concentrated fine-grained suspensions

Content
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Languages of publication
EN
Abstracts
EN
The mixing equipment for highly concentrated fine-grained suspensions must be designed differently from the equipment in which a suspension with a low concentration of the solid phase or bigger particles is mixed. It is due to the different rheological properties of the suspensions. In this work we are trying to find a suitable mixing system for a highly concentrated fine-grained suspension. The aim was to determine an effect of particular geometrical parameters of the tested mixing systems on a suspension process, especially from the energetic viewpoint. The energetic costs of all the used mixing systems were compared on the basis of the power consumption which was necessary for reaching the state of sufficient suspension movement in the whole mixed bulk. As a result, it was confirmed that multistage impellers can be used even in standard vessels (with a liquid level height equal to a vessel diameter) with a profit. During experiments, the state of sufficient movement was determined by a visual observation of the suspension at the vessel bottom, at the wall and also at the suspension level.
Publisher

Year
Volume
11
Issue
4
Pages
52-56
Physical description
Dates
published
1 - 1 - 2009
online
8 - 1 - 2010
Contributors
  • Faculty of Mechanical Engineering, Department of Process Engineering, Czech Technical University in Prague, Technická 4, 166 07 Prague 6, Czech Republic
  • Faculty of Mechanical Engineering, Department of Process Engineering, Czech Technical University in Prague, Technická 4, 166 07 Prague 6, Czech Republic
  • Faculty of Mechanical Engineering, Department of Process Engineering, Czech Technical University in Prague, Technická 4, 166 07 Prague 6, Czech Republic
  • Faculty of Mechanical Engineering, Department of Process Engineering, Czech Technical University in Prague, Technická 4, 166 07 Prague 6, Czech Republic
References
  • Moravec, J. & Rieger, F. (2008). Rheological behavior of high-concentrated fine-grained suspension. Czasopismo Techniczne 5-M/2008, 231-238.
  • Rieger, F. & Moravec, J. (2007). Rheometry of the Fine Concentrated Suspensions. In Teoretičeskie osnovy sozdanija, optimizacii i upravlenija energo-i resursosberegajuščimi processami i oborudovaniem - Sbornik trudov, 2007, (pp. 75-83). Ivanovo, Russia. [in Russian].
  • Rieger, F. (1993). Efficiency of agitators while mixing of suspensions. In 6th Polish Seminar on Mixing, 1993, (pp. 79-85). Zakopane, Poland.
  • Rieger, F. & Rzyski, E. (2000). Mixing of suspensions in vessels of different diameters and with different types of impellers, Zeszyty Naukowe Politechniki Łódzkiej. Inżynieria Chemiczna i Procesowa (27), 221-226 [in Polish].
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_v10026-009-0043-9
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