粉煤料仓下料稳定性实验

Discharge Stability of Pulverized Coal from Bunker

摘要: 建立了一个粉煤料仓下料系统,对粉煤在料仓里多股下料的稳定性及其影响因素进行了研究。实验结果表明:影响粉煤在多出口料仓里稳定下料的因素主要有料仓的补气方式和多出口料斗的结构。其中料斗的有效流通面积占料斗总截面面积比例是决定多出口料仓下料能否稳定的一个重要参数。在合适的补气方式和结构合理的料仓里,粉煤能稳定下料,并且关闭任意的几个出料口时,下料稳定性良好。粉煤在料仓里料位对下料稳定性影响不大。

Abstract: The effects of the air make-up mode,the hopper structure and the filling height on discharge stability of pulverized coal from bunker were investigated.The percentage of cross sectional area for effective coal flow in the hopper is the most important factor affecting discharge steadily.Using one or more outlets,a steady mass flow takes place in a properly structured multi-outlet hopper with combination of air flux in the different aeration sections.The filling height has only a minor effect on the stability...