Effect of Impeller Shape on Solid Particle Suspension

• Authors: František Rieger , Tomáš Jirout , Dorin Ceres , Pavel Seichter
• Languages of publication: EN

Abstracts

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.

Keywords

EN

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

• Publisher: De Gruyter Open
• Journal: Chemical and Process Engineering
• Year: 2013
• Volume: 34
• Issue: 1
• Pages: 139-152

Dates

published

1 - 03 - 2013

online

02 - 04 - 2013

Contributors

author

František Rieger

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

author

Tomáš Jirout

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

author

Dorin Ceres

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

author

Pavel Seichter

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

References

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Identifiers

DOI

10.2478/cpe-2013-0012