摘要
本文提供一种粉煤气力输送装置,在实验基础上,对影响粉煤输送量的主要参数—料仓顶压和孔板直径以及输送稳定性作了讨论。并通过理论推导,得到了一组预测粉煤在水平、垂直及倾斜管中浓相输送压力损失的关系式,理论计算与实验结果相吻合,
In this paper, an experimental setup for pneumatic transport of pulverized coal is set up. The stability of the flow and the factors affecting the flux of pulverized coal are discussed. The principal factors affecting the flux of solids are the top pressure and aperture of the orifice-plate flowmeter. The rating curve between them is parabolic comet. A method is proposed to predict the overall pipe-line pressure drop in horizonal, vertical and inclined dense phase pneumatic transport. Numerical values predicted by the method are consistent with experimental data on the transport of pulverized coal through a 20 mm diameter pipeline.
关键词
粉煤
气力输送
压力降
Pneumatic transport
Pulverized-coal
Pressure drop
