水力旋流器溢流管结构对微细颗粒分离的影响

发布时间：2018-03-07 05:16

本文选题：分离　切入点：粒度分布　出处：《化工学报》2017年05期 　论文类型：期刊论文

【摘要】：针对直径为50 mm的小直径水力旋流器,考察了溢流管插入深度和壁厚以及进口流量对微细物料分离效率的影响,并利用正交分析法得到了溢流管最优的插入深度、壁厚及最适的进口流量。此外,考察了两种套筒式溢流管对水力旋流器分离性能的影响。最后,在最优溢流管结构的基础上,探讨了分流比对分离效率的影响。结果表明:水力旋流器的直筒段具有一定的分离作用;对于微细物料的分离,溢流管采用薄壁且插入深度与水力旋流器直筒段长度相当的设计,有利于提高微细颗粒的分离效率。针对水力旋流器溢流管插入深度与其直径的最佳比例,小直径水力旋流器的比大直径水力旋流器的大,表明它们的分离行为存在着较大的差异。
[Abstract]:For the small diameter hydrocyclone with a diameter of 50 mm, the effects of the insertion depth and wall thickness of overflow tube and the inlet flow rate on the separation efficiency of micro-material are investigated. The optimum insertion depth of the overflow tube is obtained by orthogonal analysis. In addition, the influence of two sleeve overflow pipes on the separation performance of hydrocyclone was investigated. Finally, on the basis of the optimal overflow pipe structure, The effect of split ratio on separation efficiency is discussed. The results show that the straight cylinder section of hydrocyclone has a certain separation effect, and for the separation of fine materials, The overflow pipe is designed with thin wall and the insertion depth is the same as the length of the straight cylinder of the hydrocyclone, which is beneficial to improve the separation efficiency of the fine particles. In view of the optimum ratio between the insertion depth and the diameter of the overflow pipe, The separation behavior of small diameter hydrocyclone is larger than that of large diameter hydrocyclone.
【作者单位】：河北工业大学化工学院;中国科学院青岛生物能源与过程研究所;中国科学院过程工程研究所中国科学院绿色过程与工程重点实验室;
【基金】：国家重点研发计划项目(2016YFB0301701) 国家自然科学基金项目(91434114,21376254) 中国科学院科研装备研制项目(YZ201641)~~
【分类号】：TQ051.8

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