空气分级技术及设备研究进展  

Research progress of air classification technology and equipment

作　　者：付敏[1] 曹众 陈效庆 高泽飞 战明宇 FU Min;CAO Zhong;CHEN Xiaoqing;GAO Zefei;ZHAN Mingyu(Northeast Forestry University,College of Mechanical and Electrical Engineering,Harbin 150040,China)

机构地区：[1]东北林业大学机电工程学院,哈尔滨150040

出　　处：《化学工业与工程》2024年第4期117-130,共14页Chemical Industry and Engineering

基　　金：国家自然科学基金项目(51975114)。

摘　　要：空气分级机是通过空气流场对不同粒径大小的颗粒进行分离的设备,广泛应用于选矿、食品加工、精细化工、生物制药和固体废弃物回收等领域,对控制粉体原料的品质有重要作用。总结了静态空气分级机和动态空气分级机的研究进展,主要包括垂直流型和水平流型重力式分级机、离心式分级机、动态分级机的分类以及转笼、导风叶片和物料分散机构等关键部件、工艺参数和内部流场的研究现状,指出存在的问题并展望未来发展方向,以期为空气分级技术及设备的研究提供参考。未来空气分级机的研究可重点关注分级室内颗粒运动学、动力学分析、分级机内部流场定量表征以及整体结构与工艺参数优化。An air classifier is an equipment used for separating particles of different sizes through an air flow field.It is widely used in mineral processing,food processing,fine chemical industry,biopharma-ceuticals,solid waste recovery,and other fields.It plays an important role in controlling the quality of powdered raw materials.This work summarizes the research progress of static and dynamic air classifiers,including the classification of vertical and horizontal flow type gravity classifiers,centrifugal classifiers,and dynamic classifiers.It also covers the research status of key components such as rotary cages,air vanes,material dispersion mechanisms,process parameters,and internal flow fields.The analysis propo-ses existing problems and prospects the future development direction to provide a reference for the re-search of air classification technology and equipment.In the future,the research of air classifiers can fo-cus on the kinematics and dynamics analysis of particles in the classifier,the quantitative characterization of the flow field in the classifier,and the optimization of the overall structure and process parameters.

关 键 词：分级技术 重力式分级 离心式分级 动态空气分级 涡流场 

分 类 号：TQ051.8[化学工程]