Prediction of particle size and layer-thickness distributions in a continuous horizontal fluidized-bed coating process

作     者：P.Bachmann K.Chen A.Buck E.Tsotsas P.Bachmann;K.Chen;A.Bück;E.Tsotsas

作者机构：Thermal Process EngineeringOtto-von-Guericke UniversityUniversit(a)tsplatz 2Magdeburg D-39106Germany Institute of Particle TechnologyFriedrich-Alexander University Erlangen-NurembergCauerstr.4Erlangen D-91058Germany 

出 版 物：《Particuology》 (颗粒学报（英文版）)

年 卷 期：2020年第18卷第3期

页      面：1-12页

核心收录：

学科分类：08[工学] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：the Forschungs-Gellschaft Verfahrens-Technik(GVT-IGF project no.17633 N) the German Federal Ministry of Science and Education(BMBF,WIGRATEC+project No.03WKCI4B) 

主　　题：Fluidized bed Continuous process Coating,Residence-time distribution Particle-size distribution Layer-thickness distribution 

摘      要：To predict the particle size and layer-thickness distributions(LTDs)in a continuously operated horizontal fluidized-bed granulation process,two alternative models were considered.A one-dimensional two-zone model was proposed,which describes with population-balance equations the particle growth in a spraying zone that is separated from the drying *** residence-time distribution(RTD)was calculated from a literature correlation and was coupled with a population-balance model via a tank-in-series model with reflux.A two-dimensional,one-zone population-balance model,which was based directly on the RTD and the feed particle-size distribution(PSD)was also *** experiments were conducted and analyzed microscopically and with a camera optical device to determine the sample *** over the particle population were derived from the PSDs and were analyzed directly by *** compare the simulated data with the experimentally determined distributions,the PSDs were converted to *** good agreement shows that both methods are suitable to determine the PSD from an RTD of an arbitrary granulation process in a horizontal fluidized *** appears necessary with regards to the LTD spread.