气浮工艺中气泡-颗粒碰撞效率和理论计算模型研究

doi:10.11894/1005-829x.2014.34(2).005

摘要/Abstract

摘要：

综述了气浮工艺气泡、颗粒特性及其碰撞、黏附效率的实验和理论模型研究成果，发现新模型考虑了微流体动力学参数、颗粒分形特征、湍流环境条件、气泡表面污染特征及其可滑动性等因素对碰撞效率的影响，以及表面张力动力学参数、多粒径气泡组合、颗粒多体交互作用、多粒径颗粒在气泡表面的堆积排列、诱导时间作为变量等因素对黏附效率的影响，更全面、客观地揭示了气泡-颗粒碰撞、黏附行为的本质。

关键词: 气浮, 气泡, 颗粒, 碰撞效率, 理论模型

Abstract:

The experimentation and theoretical modeling research on the characteristics of bubble-particle in flotation process and its collision and adhesion efficiencies are summarized. It is found that the new model has considered the effects of micro-hydrokinetics parameters, particle fractal dimensions, turbulent environment conditions, characteristics of bubble surface pollution and its sliding performance on collision efficiency. Furthermore, the effects of surface tension dynamics parameters, multi-sized particle diameter bubble combination, particle multi-body interac-tion, multi-sized particle accumulation and arrangement on the bubble surface and variable induction time on adhe-sion efficiency have also been considered. The essence of collision and adhesion behaviors of bubble-particle are made known more completely and objectively.

Key words: flotation, bubble, particle, collision efficiency, theoretical model

中图分类号:

TU991.27

桑义敏, 陈家庆, 韩严和, 刘美丽. 气浮工艺中气泡-颗粒碰撞效率和理论计算模型研究[J]. 工业水处理, 2014, 34(2): 5-10.

Sang Yimin, Chen Jiaqing, Han Yanhe, Liu Meili. Bubble-particle collision efficiency in flotation and its theoretical model[J]. INDUSTRIAL WATER TREATMENT, 2014, 34(2): 5-10.

https://www.iwt.cn/CN/Y2014/V34/I2/5

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