10.15480/882.2333
Neugebauer, Christoph
Christoph
Neugebauer
0000-0001-6254-7552
1023116219
Diez, Eugen
Eugen
Diez
119036476X
Bück, Andreas
Andreas
Bück
0000-0002-7803-1486
Palis, Stefan
Stefan
Palis
Heinrich, Stefan
Stefan
Heinrich
0000-0002-7901-1698
132847094
Kienle, Achim
Achim
Kienle
0000-0002-9011-0451
1135982880
On the dynamics and control of continuous fluidized bed layering granulation with screen-mill-cycle
Elsevier
2019
Fluidized bed layering
Continuous operation
Stability
Control
620: Ingenieurwissenschaften
620
TUHH Universitätsbibliothek
TUHH Universitätsbibliothek
2019-07-12
2019-07-12
2019-05-22
en
Journal Article
Powder Technology (354): 765-778 (2019-09)
0032-5910
http://hdl.handle.net/11420/2929
urn:nbn:de:gbv:830-882.043877
10.15480/882.2333
2-s2.0-85068380739
10.1016/j.powtec.2019.05.030
https://creativecommons.org/licenses/by/4.0/
This paper is concerned with an experimental and theoretical study of dynamics and control of fluidized bed layering granulation with external screen mill cycle. To achieve quantitative agreement between model calculations and experiments an extended dynamic process model is proposed. In contrast to previous work by Dreyschultze et al. [1] specific plant characteristics are taken explicitly into account including a more detailed model of the milling process and a classifying particle withdrawal from the granulation chamber. The model is then used to develop new control strategies. First, a novel bed mass controller is designed and validated. Afterward, a second control loop is introduced to dampen the oscillatory behavior of the particle size distribution. It is shown that the new control concepts achieve stable steady-state operation within a short time and thereby improve the process dynamics significantly. Theoretical predictions and experimental results are shown to be in good agreement.
Deutsche Forschungsgemeinschaft (DFG)
https://doi.org/10.13039/501100001659
HE 4526/13-3
Untersuchung des dynamischen Verhaltens der Sprühgranulation in kontinuierlich betriebenen Wirbelschichtrinnen