Abstract
Abstract：In this paper, the deceleration method was proposed to investigate the combined effects of particle size, density and air distributor structure on fluidization features of flaky particles. It is shown that the average relative error of the minimum fluidization velocity (${{\rm{u}}_{{\rm{mf}}}}$) between the experimental and theoretical results found from literature is 12.08 %; as to cone-shaped air distributor, the${{\rm{u}}_{{\rm{mf}}}}$of particle in the case of 15° ∧-shaped air distributor is smaller than those in the case of horizontal and 30° ∧-shaped air distributors, while the particles fail to form stable fluidization by using ∨-shaped air distributor. Besides, the experimental correlation formula of flaky particles is derived for the${\rm{}}{{\rm{u}}_{{\rm{mf}}}}$using some of experimental data. Meanwhile, the hydrodynamics of 3D gas-solid flaky particles fluidized bed were studied computationally, the computational results show that the bed pressure drop and concentration distribution of particles with different form of air distributor are well in accordance with the experimental results.
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