Název: In-situ measurement of particle size distribution in an agitated vessel
Autoři: Kysela, Bohuš ; Konfršt, Jiří ; Chára, Zdeněk ; Šulc, R. ; Ditl, P.
Typ dokumentu: Příspěvky z konference
Konference/Akce: International Conference on Transport & Sedimentation of Solid Particles /18./, Praha (CZ), 20170911
Rok: 2017
Jazyk: eng
Abstrakt: Agitation of solid-liquid suspension or two immiscible liquids is a frequent operation in chemical and metallurgical industries (suspension/emulsion polymerization, catalytic chemical reaction, hydrometallurgical solvent extraction). The product quality, yield and economy of the processes are significantly affected by a mixing process. Prediction of mean particle/drop size and particle/drop size distribution (PSD) during the agitation is fundamental for emulsification, suspension polymerization, solid particle dispersion or crystallization. \nThe aim of this contribution is to propose a simple method of in-situ measurement of particle size distribution. The particle size measurement is based on an image analysis performed on raw image records. Evaluation method based on the best focused particles with sharp detected boundaries enhanced by the analysis of particle circularity was developed. Precise spherical mono-disperse steel and plastic particles were used to verify accuracy of evaluation method. The method has been proposed for the measurement of the time evolution of the drop size distribution in liquid-liquid dispersion in an agitated tank. The effect of droplet size distribution on the impeller speed in wateroil dispersion in agitated vessel was obtained.
Klíčová slova: agitated vessel; droplets; image analysis; particles; PSD
Číslo projektu: GA16-20175S (CEP)
Poskytovatel projektu: GA ČR
Zdrojový dokument: 18th International Conference on Transport & Sedimentation of Solid Particles, ISBN 978-83-7717-269-8

Instituce: Ústav pro hydrodynamiku AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0279141

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-371058


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav pro hydrodynamiku
Konferenční materiály > Příspěvky z konference