Development and application of the active pulsing air classification
In order to improve the separation efficiency in the air-solid phase, we proposed an innovative separation method called the active pulsing air classifier, which produce pulsing air by a pulsing air generator. In this way, the particles received a new acceleration action in each pulsing period, and then, it obtains a better performance than non-pulsing air separators in the laboratory scale. The dynamic equation of the motion particle in the active pulsing airflow was built up, showing that a higher density particle may get a small acceleration. The simulation results of airflow field show that the airflow turbulence acceleration will disperse the particles and a density dominant separation can be achieved. All high density particles, low density particles, and dust of waste catalyst can be acquired by the active pulsing air classifier. When the airflow velocity is 3.33 m/s, the frequency of air pulsing is 7/3 Hz, the separation efficiency of the active pulsing air classifier reaches its maximum: 97.63%. Based on our study, an industry-scale pulsing air classifier is developed, which provides a new and efficient method for resource reutilization.
active pulsing air classification dynamic models waste catalyst resource reutilization
Duan Chen-long He Ya-qun Zhao Yue-min He Jing-feng Wen Bao-feng
School of Chemical Engineering and Technology, China University of Mining & Technology, Xuzhou 221116, China
国际会议
The 6th International Conference on Mining Science & Technology ICMST 2009(第六届国际矿业科学技术大会)
徐州
英文
1-6
2009-10-18（万方平台首次上网日期，不代表论文的发表时间）