Fluid Dynamics in Concurrent Rotary Dryers and Comparison of their Performance with a Modified Dryer
Fluid Dynamics in Concurrent Rotary Dryers and Comparison of their Performance with a Modified Dryer
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并行旋转干燥机中的流体动力学及其与改进干燥机的性能比较
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
M. Barrozo
中科院分区：
文献类型：
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作者：
B. C. Silvério;J. Façanha;E. B. Arruda;V. V. Murata;M. Barrozo
本文分析了带提升刮板的普通顺流干燥机的流体动力学特性及其对转筒干燥机性能的影响。对颗粒肥料在常规顺流旋转干燥机中的干燥进行了实验研究，并与改进后的旋转通风干燥机进行了比较。这种新型干燥机的主要特点是存在一个由中心管（装在滚筒中）组成的充气系统，一系列微型管道从中心管将热空气直接引导到颗粒床，在底部流动（没有刮板）。所获得的结果证实了旋转充气干燥器由于其更有效的气体-颗粒接触而具有上级性能。
The present work analyzed aspects of the fluid dynamics of the conventional concurrent dryer equipped with lifting flights and their influence on the performance of a rotary dryer. The drying of granulated fertilizers (GTSP) in a conventional concurrent rotary dryer was experimentally investigated and compared with a modified configuration known as the roto-aerated dryer. The main feature of this new dryer is the presence of an aerated system consisting of a central pipe (encased in the drum) from which a series of mini-pipes lead hot air directly to the particle bed, flowing at the bottom (without flights). The results obtained confirm the superior performance of the roto-aerated dryer due to its more effective gas-particle contact.