石灰石粉密相气流输送中试研究

Pneumatic Conveying Research of Limestone-powder in Dense Phase

用石灰石粉进行长度分别为 6 2m和 16 7m两种不同输送距离、管径为 80mm的中试研究 ,通过获得的有关水平管、垂直管、弯管的压降数据及不同输送距离条件下的固气比数据 ,提出了密相技术输送这种粉料的压降的关联式和固气比关联式 ,再通过计算程序 ,可以较好地模拟实验过程 ,说明所获得的计算关联式可以用于石粉输送的工艺设计 。

Through the research of pilot plan of conveying with limestone-powder in two different pipe length,The diameter of the conveying pipe is 80?mm. The distances of the test are 62?m and 167?m.The dates of pressure and of weight ratio of solid to gas can be obtained. The measurements of pressure involve in level pipe, vertical pipe and bow pipe. The calculation formulas for the main parameters of this kind of material have been submitted, by which the conveying process can be simulated preferably. This work establishs the base of designing of pneumatic conveying on the limestone-powder.