【Abstract】 Spouted pressure drop was one of important parameters in the design and application of spouted bed.In this paper spouted pressure drop of a new double nozzle rectangular draft tube spouted bed was studied.A 120 mm×240 mm cross section double nozzle rectangular stainless steel spouted bed was used to investigate the effects of flow rate,particle diameter,bed height,draft tube diameter and height of entrainment zone on maximum spouted pressure drop.Maximum spouted pressure drop increased with increasing flow rate, increasing particle diameter and increasing height of entrainment zone.Maximum spouted pressure drop increased and then decreased with increasing draft tube diameter.Maximum spouted pressure drop was hardly affected by bed height.By regression of experimental data,the correlation of maximum spouted pressure drop with the above parameters was obtained.更多还原