Flow pattern transition characteristics in vibrated gas-solid fluidized bed of Geldart B magnetite powder using pressure drop signals analysis

Zhang, Yadong; Zhao, Yuemin; Dong, Liang; Chen, Duan; Zhou, Enhui; Lu, Junyu; Zhang, Bo; Yang, Xuliang

doi:10.1016/j.powtec.2017.12.089

Cited by 20 publications

(2 citation statements)

References 34 publications

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“…The vibrational oscillations overlaid on a fluidized bed of solid particles are mostly applied in the fluidization method. A positive effect has been proved in the intensification of phase contact in a vibrating fluidized bed, in comparison with a stationary layer, optimal features are selected [9,10]. It is indicated that gas-vibro-fluidization usually has higher circulation velocities compared to conventional gas-fluidization [11].…”

Section: Literature Reviewmentioning

confidence: 99%

Multistage Shelf Devices with Fluidized Bed for Heat-Mass Transfer Processes: Experimental Studies and Practical Implementation

et al. 2021

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The article deals with the theoretical description and experimental study of the hydrodynamic and heat transfer properties regarding the operation of multistage gravitational devices of the fluidized bed with inclined perforated shelves. The peculiarities of the work and the implementation field of the multistage shelf units are described. A theoretical model to define the solubilizer’s velocity above the perforation holes, in the above-shelf space of the device and in the outloading gap, as well as the residence time of the dispersed phase at the stage (perforated shelf contact) of the device is presented. The results of experimental studies regarding the influence, made by the structural parameters of the perforated shelf contacts, on the distribution pattern of single-phase and gas-dispersed flows in the workspace of the device, on the intensity of interphase heat transfer are presented. The conditions to create active hydrodynamic operating modes of multistage gravitational shelf devices, which provide higher efficiency of heat-mass transfer processes, and with lower gas consumption and hydraulic resistance compared to typical fluidized bed devices, are proved. Peculiarities regarding the implementation of heat-mass transfer processes in multistage devices are described using heat treatment and drying processes as examples.

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Section: Literature Reviewmentioning

confidence: 99%

Multistage Shelf Devices with Fluidized Bed for Heat-Mass Transfer Processes: Experimental Studies and Practical Implementation

et al. 2021

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“…Existing experimental studies in VFBs are mainly focused on beds operated in bubbling regime. These works include studies on the effect that vibration has on the bed and bubble dynamics [1,5], the air pressure and void fraction fluctuations induced by vibration [26][27][28][29][30] and the aggregation [28,31] and segregation phenomena [3,18,[32][33][34]. Some works have also investigated the effect of vibration on the bubble behavior in VFBs [8,10,11].…”

Section: Introductionmentioning

confidence: 99%

Vibration augmentation of the solids volume dragged by the wake of a bubble rising in a fluidized bed

2021

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Effect of Distributor Structure on the Uniformity of Multiphase System in Fluidized Ironmaking Process

Wang

Liu

et al. 2020

The Minerals, Metals &Amp; Materials Series

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Flow pattern transition characteristics in vibrated gas-solid fluidized bed of Geldart B magnetite powder using pressure drop signals analysis

Cited by 20 publications

References 34 publications

Multistage Shelf Devices with Fluidized Bed for Heat-Mass Transfer Processes: Experimental Studies and Practical Implementation

Multistage Shelf Devices with Fluidized Bed for Heat-Mass Transfer Processes: Experimental Studies and Practical Implementation

Vibration augmentation of the solids volume dragged by the wake of a bubble rising in a fluidized bed

Effect of Distributor Structure on the Uniformity of Multiphase System in Fluidized Ironmaking Process

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