摘要
对重量浓度μ＜１０、输送距离为３０～９０ｍ的小麦粉、小麦麸稀相气力压运系统两相流加速压损进行了研究。由功能原理导出了启动加速压损及再加速压损的计算公式，并通过试验求得加速前后空气速比。
This paper researchs into the acceleration pressure loss of the two phase flow of the thin phase positive pressure pneumatic conveying system of flour and bran whose concentration is u<10kg/kg and whose transporting distance is between 30 and 90 meters. From the function principle the calculation formulas of the start acceleration pressure loss and reaccelerating pressuer loss are derived. And through the experiment the speed ratio of air before and after and after acceleration is found.
关键词
气力压运
稀相
两相流
加速压损
气力输送
pressure pneumatic conveying, thin phase, two phase flow, acceleration pressure loss, speed ratio of air before and after acceleration
