Abstract:

Acoustic fluidized bed is formed by introducing a sound field into a fluidized bed filled with particles as bed matrix. Acoustic field can reduce particle agglomerate size ，and dramatically improve the fluidization quality of particles. The principle of acoustic fluidized bed and the progress of basic research and application of acoustic fluidized bed are presented. The research of acoustic fluidized bed including hydrodynamics characteristics，particle characteristics，sound field parameters ，fluidization model，particle agglomeration and mechanism of fluidization is reviewed. The existing problems and the development of acoustic fluidized bed technology are proposed.

摘要：

声场流化床是将声场引入普通流化床，采用颗粒为床层介质的流固相处理系统。声波可以有效降低颗粒聚团尺寸，显著改善超细颗粒的流化质量。本文介绍了声场流化床的基本原理以及近年来在基础研究和应用方面取得的进展及成果，综述了声场流化床在流体力学特性、颗粒特性、声场参数、流态化模型、颗粒团聚以及流化质量机理等方面的研究，并对声场流化床目前存在的问题及发展趋势提出了一些建议。