This paper has studied the drying dynamics experimental law of vegetable seed respectively in a fixed bed and a spiral vibrofluidized bed model dryer and simultaneously analysed seed physiology variation characteristics , and thereupon expounded the mechanism of vegetable seed heat and mass transfer enforcement , developed a spiral promotion vibrofluidized bed dryer for vegetable seed dehydration with high efficiency and good quality , energy saving 综合工程热物理和种子生理的研究方法,选用白菜与菜豆种子在固定床与振动流化床中进行了干燥动力学实验研究以及种子生理的同步测试,阐明了蔬菜种子干燥的强化传热传质机理,并在此基础上研制了辐射-对流-导热-振动综合传热的优质、高效、节能的螺旋提升振动流化床蔬菜种子干燥机。
Abstract : making use of the method of regression analysis , an e xperimental study of multiple factors change have been made in batch vibrated fl uidized bed . the mathematical model is set up between the diameter of particle an d the technological parameter . the effect of technological parameter on granulati on is discussed 文摘:利用回归分析方法在间歇操作的振动流化床中进行了多因素变化试验研究,建立了颗粒直径与工艺参数之间的数学模型,探讨工艺参数对造粒的影响。
The vibrated fluidized bed granulation will effectively overcome these disadvantages of wide distribution of particle size and high dissipation of energy , existing in the traditional fluidized bed and the spout - fluidized bed . the granulation technique in vfb is especially suitable for the medium and small scales process of layering granulation 振动流化床造粒可有效克服传统流化床或喷动床造粒颗粒粒度分布宽、动力消耗高的缺点,特别适合于中小生产规模的层式造粒过程。