Effect of impeller shape on solid particle suspension

• Autorzy: Rieger F. , Jirout T. , Ceres D. , Seichter P.
• Języki publikacji: EN

Abstrakty

EN

This paper deals with the effect of impeller shape on off-bottom particle suspension. On the basis of numerous suspension measurements, correlations are proposed for calculating the just-suspended impeller speed for a standard pitched four-blade turbine and three types of hydrofoil impellers produced by TECHMIX for several particle sizes and for a wide range of particle concentrations. The suspension efficiency of the tested impellers is compared with the efficiency of a standard pitched blade turbine on the basis of the power consumption required for off-bottom suspension of solid particles. It is shown that the standard pitched blade turbine needs highest power consumption, i.e. it exhibits less efficiency for particle suspension than hydrofoil impellers produced by TECHMIX.

Słowa kluczowe

EN

mixing; axial impeller; hydrofoil impeller; just-suspended impeller speed; electrochemical metod

PL

mieszanie; wirnik osiowy; prędkość wirnika; metoda elektrochemiczna

• Wydawca: Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
• Czasopismo: Chemical and Process Engineering
• Rocznik: 2013
• Tom: Vol. 34, nr 1
• Strony: 139--152
• Opis fizyczny: Bibliogr. 15 poz., rys.

Twórcy

autor

Rieger F.

• Czech Technical University in Prague, Faculty of Mechanical Engineering, Department of Process Engineering, Technická 4, 166 07 Prague 6, Czech Republic

autor

Jirout T.

• Czech Technical University in Prague, Faculty of Mechanical Engineering, Department of Process Engineering, Technická 4, 166 07 Prague 6, Czech Republic

autor

Ceres D.

• Czech Technical University in Prague, Faculty of Mechanical Engineering, Department of Process Engineering, Technická 4, 166 07 Prague 6, Czech Republic

autor

Seichter P.

• TECHMIX s.r.o., Křižíkova 70, 612 00 Brno, Czech Republic

Bibliografia

• 1. Ceres D., Jirout T., Rieger F., Seichter P., 2008. Effect of impeller blade shape on particle suspension. Czasopismo Techniczne. Mechanika, 2-M, 105, 57-65 (in Russian).
• 2. Ceres D., 2010. Mixing of suspensions. Ph.D. Disertation. Czech Technical University in Prague (in Czech).
• 3. Ditl P., Rieger F., 2006. Designing suspension-mixing systems. CEP, 102, 22-30.
• 4. Fořt I., Kysela B., Jirout T., 2010. Flow characteristics of axial high speed impellers. Chem. Process Eng., 31, 661-679.
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• 7. Rieger F., Sinevič V., 1980. Suspension of solid particles. Colect. Czech. Chem. Commun., 95, 966-968.
• 8. Jirout T., Rieger F., 2009. Scale-up of mixing equipment for suspensions. Chem. Process Eng., 30, 359-367
• 9. Jirout T., Moravec J., Rieger F., Sinevič V., Špidla M., Sobolík V., Tihon J., 2005. Electrochemical measurement of impeller speed for off-bottom suspension. Chem. Process Eng., 26, 485-497.
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