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撞击流已被证明是强化相间热质传递最有效的方法之一 ,但不可能是一种万能的工具 ,因为它也具有其本身的局限性 .在回顾前人和作者一系列研究的基础上 ,综合评价了撞击流的基本特性 ,包括优点和缺点 ,诸如气固系统阻力不大、传递系数大、混合强烈、活性区停留时间很短以及难以安排多级系统等 .简要介绍撞击流工业应用现状和某些有希望成功的开发研究 ,包括本文作者所做的循环撞击流干燥过程和撞击流反应制“超细”白碳黑研究的主要成果 .
Impinging streams have proven to be one of the most effective ways to enhance the phase-to-phase heat and mass transfer, but they can not be a panacea because they have their own limitations. Based on a review of previous studies by authors and authors , Comprehensively evaluated the basic characteristics of impinging flow, including advantages and disadvantages, such as small resistance of gas-solid system, large transfer coefficient, strong mixing, short residence time in active zone, difficulty in arranging multi-level system, The status quo and some promising successful developmental studies include the main results of the “ultrafine” white carbon black study conducted by the authors of this paper in the cycle impact flow drying process and the impact flow reaction.