化工进展2025，Vol.44Issue(7)：3770-3780,11.DOI:10.16085/j.issn.1000-6613.2024-0804
气固摆动流化床的起始流化特性
Initial fluidization characteristics of gas-solid rolling fluidized bed
摘要
Abstract
Through the combination of deceleration method and video observation,the variation law of gas-solid flow with rolling process,the variation characteristics of bed pressure drop and initial fluidization velocity in gas-solid rolling fluidized bed were studied,and compared with those of static vertical bed and inclined bed.The influence of swing on initial fluidization was analyzed,and the prediction model of initial fluidization velocity of rolling fluidized bed was established.The results showed that when the rolling bed was reduced to less than the initial fluidization velocity,and the bed surface was almost perpendicular to the wall surface and no longer tilts with the swing of the bed.The initial fluidization velocity decreased with the increase of rolling amplitude or the decrease of rolling period.Under the same initial loading height,the order of initial fluidization velocity was:vertical bed>inclined bed>rolling bed.The prediction model of the initial fluidization velocity of the rolling bed was established by force analysis,and the fitting degree was good.关键词
流态化/摆动流化床/起始流化速度/流化曲线/床层压降/预测模型Key words
fluidization/rolling fluidized bed/initial fluidization velocity/fluidization curve/bed pressure drop/prediction model分类
化学化工引用本文复制引用
吴邦华,王德武,王若瑾,刘燕,徐荣升,张少峰..气固摆动流化床的起始流化特性[J].化工进展,2025,44(7):3770-3780,11.基金项目
河北省自然科学基金(B2022202003) （B2022202003）
驻冀高校与石家庄市产学研合作项目(241790637A). （241790637A）
