| 胡国呈， 董金善， 崔锋.基于正交实验法的双转子空心圆盘干燥机干燥参数优化[J].轻工机械,2020,38(1):85-91 |
| 基于正交实验法的双转子空心圆盘干燥机干燥参数优化 |
| Optimization of Drying Parameters of Double Rotor Hollow Disc Dryer Based on Orthogonal Experiments |
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| DOI：10.3969/j.issn.1005 2895.2020.01.016 |
| 中文关键词: 空心圆盘干燥机 计算流体动力学 正交实验 内部流场 |
| 英文关键词:hollow disc dryer CFD (Computational Fluid Dynamics) Orthogonal experiment internal flow field |
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| 摘要点击次数: 689 |
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| 中文摘要: |
| 为了探究污泥处理设备空心圆盘干燥机的干燥性能，为污泥干燥提供可参考的操作参数，笔者采用计算流体力学(CFD)方法对双转子空心圆盘干燥机内部流场进行数值模拟。研究了转子转速、蒸气温度和进料量对干燥效果的影响，并运用正交实验分析各因素干燥效果的影响大小。模拟结果表明：提高转子转速缩短了颗粒在干燥机内部的停留时间，使干燥机出口处的水分的质量分数有所上升；正交实验表明影响干燥效果的因素中蒸气温度>进料量>转速，并存在最优的参数组合。本研究可为污泥干燥过程提供可供参考的操作参数。 |
| 英文摘要: |
| In order to explore the drying performance of the hollow disc dryer for sludge treatment equipment, thus providing reference operation parameters for sludge drying process, the computational fluid dynamics (CFD) method was used to simulate the internal flow field of double rotor hollow disc dryer. The effects of rotor speed, steam temperature and feed rate on drying effect were studied, and the effects of various factors on drying effect were analyzed by orthogonal experiment. The simulation results show that the increase of rotor speed shortens the residence time of particles in the dryer and increases the volume fraction of water at the outlet of the dryer. Orthogonal experimental results show that the order of factors affecting the drying effect is steam temperature>feed rate>speed, and there is an optimal combination of parameters. This method can provide reference operation parameters for sludge drying process. |
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