Modeling of Sludge Behavior in a Steam Dryer
Modeling of Sludge Behavior in a Steam Dryer
复制标题
蒸汽干燥机中污泥行为的建模
DOI：
10.1080/07373937.2011.602811
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发表时间：
2011
影响因子：
3.3
通讯作者：
K. Shimizu
中科院分区：
文献类型：
--
作者：
Mitsuo Tazaki;H. Tsuno;M. Takaoka;K. Shimizu
蒸汽干燥机广泛用于污水污泥处理。蒸汽干燥器的效率可以通过提高干燥速率来提高，而干燥速率受干燥器中污泥运动的影响。因此，有必要了解污泥在干燥机中的运动和水分蒸发。在这项研究中，使用示踪剂来阐明干燥机中污泥的行为。实验证实，污泥并不是简单地朝一个方向流动;相反，部分污泥朝相反方向流动（返混）。进行了串联罐模型分析，以分析返混现象。该分析提供了对干燥器中污泥行为的深入了解，并确定了每个区段的干燥速率。
Steam dryers are in widespread use for sewage sludge treatment. The effectiveness of the steam dryer could be improved by increasing the drying rate, which is influenced by the movement of the sludge in the dryer. Therefore, it is necessary to understand the movement of sludge and water evaporation in the dryer. In this study, tracers were used to elucidate the behavior of sludge in the dryer. The experiment confirmed that sludge did not simply flow in one direction; instead, part of the sludge flowed in the reverse direction (back-mixing). A tanks-in-series model analysis was performed to analyze the back-mixing phenomenon. This analysis provided insight into the behavior of sludge in the dryer, and the drying rate of each segment was determined.