Analysis of particle coating by spouted bed process
作者： W.P. de Oliveira , J.T. Freire , J.R. Coury
DOI: 10.1016/S0378-5173(97)00181-6
关键词: Porosity 、 Particle size 、 Mass flow rate 、 Range (particle radiation) 、 Suspension (vehicle) 、 Chromatography 、 Chemistry 、 Coating 、 Analytical chemistry 、 Volumetric flow rate 、 Mass fraction
摘要: The coating of nearly spherical porous alumina with a mean diameter, dP, 3.9 mm, suspension sucrose and talc in water, was carried out conical-cylindrical spouted bed. rate increase particle mass, K1, the mass fraction atomized solids incorporated by particles, η, were measured as function spouting gas temperature, Tgi,mass flow relative to gas, Ws/Wg, minimum spouting, Q/Qms. temperature varied between 67 83°C, Wd/Wg 0.00263 0.00471, Q/Qms 1.5 1.7. K1 η found be insensitive Tgi within studied range; expressions for their dependence on Ws/Ws Q/Qm, derived. Particle increased linearly time. final product is uniform shape conserves log-normal distribution.
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