单组分颗粒振动流化床的流体力学研究（1）──起始流化时床层压降

摘要国内外振动流化床流体力学的研究由于实验条件的限制，其结果尚存在着分歧，在此情况下，本文在内径为１４８ｍｍ的振动流化床下，研究Ｇｅｌｄａｒ’ｓＡ、Ｂ、Ｄ类物料起始流化时的床层压降，分别研究了颗粒物性与振动特性（频率、振幅）对床层压降的影响，并且根据上述因素的影响，关联了起始流化时床层压降的计算式，并与国外学者的关联式进行了比较。

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	靳海波
	张济宇
	张碧江

关键词：振动流化床流体力学床层压降

Abstract： Hydrodynamics of vibrated fluidized bed (diameter 148 mm)of monocomponent particle were investigated.The effects of particle properties (size and density),static bed height and vibrational parameters (frequency and amplitude)on fluidized bed pressure drop were presented.According to the experimental results of 13 kinds of particles (belonging to Geldar's A,B and D groups), an empirical correlation for predicting the ratio of presure drops at minimum fluidization under vibration and no-vibration conditions. ΔPmv/ΔPmf,giving good agreement with experimental data and a deviation within ±10% was proposed.

Keywords： s:vibrated fluidied bed; Hydrodynamics; presure drop of fluidized bed

Received 1996-07-15;

引用本文:

靳海波，张济宇，张碧江.单组分颗粒振动流化床的流体力学研究（1）──起始流化时床层压降[J]. 化学工业与工程, 1996,13(3): 15-21

Jin Haibo; Zhang Jiyu; Zhang Bijiang.Hydrodynamics of Vibrated Fluidized Bed of Mono-component Particles (Ⅰ)──Pressure Drop at Minimum Fluidization[J]. Chemcial Industry and Engineering, 1996,13(3): 15-21