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- W2142409541 abstract "Axial bed depth profiles were experimentally measured in a rotary kiln containing ilmenite particles under steady state and transient conditions. The variables include feed rate of solids, inclination and rotational speed of the kiln. and dam height. The variation of the axial velocity with kiln axis was estimated. The semi-experimental model proposed by Perron and Bui (1990) was modified to include the effect of the variables of the present study. The mean residence time of solids was estimated from the fractional hold-up and expressed in terms of the process variables. The transients induced by a step change in any of the operating conditions were measured as variation of discharge rate of solids with time. On a mesuré expérimentalement les profils de profondeur d'un lit axial dans un four de régénération contenant des particules d'ilménite dans des conditions stationnaire et transitoire. Les variables incluent la vitesse d'alimentation des solides, l'inclinaison et la vitesse rotationnelle du four et la hauteur du serrement. On a mesuré la variation de la vitessé axiale avec l'axe du four. Le modèle semi-expérimental proposé par Perron et Bui (1990) a été modifié de façon à inclure l'effet des variables précédentes. Le temps moyen de séjour des solides a été estimé à partir de la rétention fractionnelle et exprimée en termes de variables de procédé. Les transitoires induites par un changement en escalier de chacune des conditions de fonctionnement ont été mesurées en termes de variation de la vitesse d'évacuation des solides en fonction du temps." @default.
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- W2142409541 date "1992-06-01" @default.
- W2142409541 modified "2023-09-27" @default.
- W2142409541 title "Prediction of axial velocity profiles and solids hold-up in a rotary kiln" @default.
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- W2142409541 doi "https://doi.org/10.1002/cjce.5450700305" @default.
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