带导流管液固喷动床的最小喷动速度研究

Study on Minimum Spouting Velocity in Liquid and Solid Bed with Draft Tube

在截面为矩形有机玻璃喷动床内,使用四种粒径的窄筛分球形玻璃珠,以常温水作为喷动和辅助液体。综合考虑床体的几何尺寸、操作参数以及液体和颗粒的物性特征,系统研究带导流管喷动床的最小喷动速度,得出最小喷动速度的经验公式,为设计和操作提供参考。

In the polymethyl methacrylate spouting bed with rectangular sections, four type of diameter spherical glass balls separated by narrow sieve are used, and normal temperature water adopted as spouting and auxiliary liquid. Systematically study the minimum spouting velocity of the spouted bed with a draft tube, obtain experienced minimum spouting velocity formula, and provide reference for design and operation based on considering geometric size of the bed, operating parameters and physical properties of the liquid and particles.