Effect of characterization of powder on particle velocity in dense-phase pneumatic conveying

作者：Zongming Liu, Bin Du, Weilin Zhao, Xiansong Li, Jinkai Li, Congling Bu, Yi Hua · 发表于：Journal of Physics Conference Series · 年份：2009 · DOI：10.1088/1742-6596/147/1/012068 · 被引用次数：1 · 研究领域：Granular flow and fluidized beds、Mineral Processing and Grinding、Tunneling and Rock Mechanics

Particle velocity is an important characteristic parameter in the process of evaluating dense-phase pneumatic conveying system. It relates to the properties of conveying materiel, system performance, operating conditions, physical properties of conveying gas etc, and has some noticeable effect on the conveying capacity, energy consumption, wear between particles and pipe. Of all influencing factors, characterization of powder is crucial to impact particle velocity. In this paper, pneumatic conveying experiments of four kinds of powdery material whose different solid physical properties are tested and taken are carried out using compress air in long distance pipe. The trend of particle velocity was achieved by the experimental data gained from Groups of differential pressure transmitters. Dimension analysis and mathematical analysis were adopted to obtain a theoretical correlation equation of particle velocity versus solid characteristics: And this equation can be used to predict the tendency of particle velocity for different kind of solid precisely.