A study of particle motion in rotary dryer

被引：68

作者：

Lisboa, M. H. ^{[1
]}

Vitorino, D. S. ^{[1
]}

Delaiba, W. B. ^{[1
]}

Finzer, J. R. D. ^{[1
]}

Barrozo, M. A. S. ^{[1
]}

机构：

[1] Univ Fed Uberlandia, Fac Engn Quim, BR-38400902 Uberlandia, MG, Brazil

来源：

BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING | 2007年 / 24卷 / 03期

关键词：

rotary dryer; flights; dynamic coefficient of friction;

D O I：

10.1590/S0104-66322007000300006

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The purpose of this work was to study the performance of a rotary dryer in relation to number of flights. In this work an equationing was proposed to calculate the area used by the solids in two-segment flights of with any angle between the segments. From this area, the flight holdup and the length of fall of the particles were calculated for different angle positions and the results obtained were compared to experimental values. The results show an increase in dryer efficiency with the increase in number of flights up to a limit value, for ideal operational conditions. The experimental data on average residence time were compared to results obtained by calculations using equations proposed in the literature. The equation proposed for predicting flight holdup and length of fall of particles generated very accurate estimations.

引用

页码：365 / 374

页数：10