水力旋流器新型出口挡板结构对分离性能的影响

doi:10.11949/j.issn.0438-1157.20171066

化工学报 ›› 2018, Vol. 69 ›› Issue (5): 2081-2088.DOI: 10.11949/j.issn.0438-1157.20171066

水力旋流器新型出口挡板结构对分离性能的影响

刘鸿雁¹, 韩天龙^1,2, 王亚^1,2, 黄青山^2,3

1. 河北工业大学化工学院, 天津 300130;
2. 中国科学院青岛生物能源与过程研究所, 山东青岛 266101;
3. 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, 北京 100190

收稿日期:2017-08-08 修回日期:2017-09-11 出版日期:2018-05-05 发布日期:2018-05-05
通讯作者: 黄青山
基金资助:
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）。

Influence of new outlet configurations with baffle on hydrocycloneon separation performance

LIU Hongyan¹, HAN Tianlong^1,2, WANG Ya^1,2, HUANG Qingshan^2,3

1. School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China;
2. Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, Shandong, China;
3. Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China

Received:2017-08-08 Revised:2017-09-11 Online:2018-05-05 Published:2018-05-05
Supported by:
supported by the National Key Research and Development Program of China (2016YFB0301701), the National Natural Science Foundation of China (91434114, 21376254) and the Instrument Developing Project of the Chinese Academy of Sciences (YZ201641).

摘要/Abstract

摘要：

针对小直径水力旋流器，设计了不同内置挡板式的溢流管和底流管，实验研究了新型出口挡板结构对水力旋流器分离性能的影响。研究结果表明：内置挡板溢流管适用于处理量较大的工况，与传统溢流管相比，分离效率略有降低，但在高流量下其压降的降低幅度可达11.11%，挡板宜采用相对较窄、较短、三块120°间隔设计方式；底流管内置挡板采用十字交叉结构可稳定内旋流，使分离效率最大可提高5.96%；新型内置挡板的溢流口与底流口相耦合，可同时实现提高分离效率和降低压降的目标。此外，在相同情况下，发现溢流管内置挡板可消除水力旋流器内部的“空气柱”，据此推断“空气柱”并非由内部空气形成，而是其内部负压中心形成的某种湍流程度较高的强制旋流涡。

关键词: 分离, 实验验证, 流动, 水力旋流器, 溢流管, 底流管, 空气柱

Abstract:

The influence of new outlet configurations, which are designed with different internal baffles in the vortex finder and the underflow pipe, on the separation performance is investigated experimentally in a small hydrocyclone with a diameter of 50 mm. It is indicated that the vortex finder with internal baffles is suitable for the working conditions of a high throughput. Compared with that of traditional vortex finders, the separation efficiency of vortex finders with internal baffles in the hydrocyclone decreased slightly, but the pressure drop reduced remarkably to 11.11% at high flow rates. Three pieces of narrow and short baffles, which are spaced at regular intervals around the inner wall of the vortex finder, are recommended. It is found that the cross-shaped internal baffles in the underflow pipe can stabilize the inner vortex flow therein, and the separation efficiency can be improved by 5.96%. If the vortex finder and the underflow pipe are designed with the optimized baffles, the separation efficiency can be enhanced and meanwhile the pressure drop can be decreased. In addition, it is observed that the vortex finder with the internal baffles can eliminate the air core inside the hydrocyclone. It is inferred that the air core is not produced by air, but it is a forced swirl vortex with a high turbulence formed in the central zone with a negative gauge pressure.

Key words: separation, experimental validation, flow, hydrocyclone, vortex finder, underflow pipe, air core

中图分类号:

TQ028.54

刘鸿雁, 韩天龙, 王亚, 黄青山. 水力旋流器新型出口挡板结构对分离性能的影响[J]. 化工学报, 2018, 69(5): 2081-2088.

LIU Hongyan, HAN Tianlong, WANG Ya, HUANG Qingshan. Influence of new outlet configurations with baffle on hydrocycloneon separation performance[J]. CIESC Journal, 2018, 69(5): 2081-2088.

参考文献 35

[1]	Yu J F, Fu J, Cheng H, et al. Recycling of rare earth particle by mini-hydrocyclones[J]. Waste Management, 2017, 61:362-371.
[2]	Davailles A, Climent E, Bourgeois F. Fundamental understanding of swirling flow pattern in hydrocyclones[J]. Separation and Purification Technology, 2012, 92:152-160.
[3]	Yoshida H, Takashina T, Fukui K, et al. Effect of inlet shape and slurry temperature on the classification performance of hydro-cyclones[J]. Powder Technology, 2004, 140(1/2):1-9.
[4]	Chu L Y, Chen W M. Research on the motion of solid particles in a hydrocyclone[J]. Separation Science and Technology, 1993, 28(10):1875-1886.
[5]	Tripathy S K, Bhoja S K, Raghu Kumar C, et al. A short review on hydraulic classification and its development in mineral industry[J]. Powder Technology, 2015, 270:205-220.
[6]	Banerjee C, Climent E, Majumder A K. Mechanistic modelling of water partitioning behaviour in hydrocyclone[J]. Chemical Engineering Science, 2016, 152:724-735.
[7]	刘鸿雁, 王亚, 韩天龙, 等. 水力旋流器溢流管结构对微细颗粒分离的影响[J]. 化工学报, 2017, 68(5):1921-1931. LIU H Y, WANG Y, HAN T L, et al. Influence of vortex finder configurations on the separation of fine particles[J]. CIESC Journal, 2017, 68(5):1921-1931.
[8]	Tang B, Xu Y X, Song X F, et al. Numerical study on the relationship between high sharpness and configurations of the vortex finder of a hydrocyclone by central composite design[J]. Chemical Engineering Journal, 2015, 278:504-516.
[9]	Wang B, Yu A B. Numerical study of particle-fluid flow in hydrocyclones with different body dimensions[J]. Minerals Engineering, 2006, 19(10):1022-1033.
[10]	王剑刚, 张艳红, 白兆圆, 等. 进口尺寸对旋转流场分离特征的影响[J]. 化工学报, 2014, 65(1):205-212. WANG J G, ZHANG Y H, BAI Z Y, et al. Effect of inlet size on separation flow field inside hydrocyclone[J]. CIESC Journal, 2014, 65(1):205-212.
[11]	Silva D O, Vieira L G M, Lobato F S, et al. Optimization of the design and performance of hydrocyclones by differential evolution technique[J]. Chemical Engineering and Processing:Process Intensification, 2012, 61:1-7.
[12]	Kuang S B, Chu K W, Yu A B, et al. Numerical study of liquid-gas-solid flow in classifying hydrocyclones:effect of feed solids concentration[J]. Minerals Engineering, 2012, 31:17-31.
[13]	Wang H L, Zhang Y H, Wang J G, et al. Cyclonic separation technology:researches and developments[J]. Chinese Journal of Chemical Engineering, 2012, 20(2):212-219.
[14]	Vakamalla T R, Koruprolu V B R, Arugonda R, et al. Development of novel hydrocyclone designs for improved fines classification using multiphase CFD model[J]. Separation and Purification Technology, 2017, 175:481-497.
[15]	曹雨平, 姜临田. 水力旋流器的研究现状和发展趋势[J]. 工业水处理, 2015, 35(2):11-14. CAO Y P, JIANG L T. Research status and development trend on hydrocyclone[J]. Industrial Water Treatment, 2015, 35(2):11-14.
[16]	Pandit H P, Shakya N M, Stole H, et al. Hydraulic and sediment removal performance of a modified hydrocyclone[J]. Minerals Engineering, 2009, 22(4):412-414.
[17]	白志山, 汪华林, 唐良瑞. 原油脱盐脱水技术评述[J]. 化工机械, 2004, 31(6):384-387. BAI Z S, WANG H L, TANG L R. Review of the dewatering and desalting technologies of crude oil[J]. Chemical Engineering & Machinery, 2004, 31(6):384-387.
[18]	Wakizono Y, Maeda T, Fukui K, et al. Effect of ring shape attached on upper outlet pipe on fine particle classification of gas-cyclone[J]. Separation and Purification Technology, 2015, 141:84-93.
[19]	Hwang K J, Hwang Y W, Yoshida H. Design of novel hydrocyclone for improving fine particle separation using computational fluid dynamics[J]. Chemical Engineering Science, 2013, 85:62-68.
[20]	Ghodrat M, Kuang S B, Yu A B, et al. Numerical analysis of hydrocyclones with different vortex finder configurations[J]. Minerals Engineering, 2014, 63:125-138.
[21]	Vieira L G M, Barrozo M A S. Effect of vortex finder diameter on the performance of a novel hydrocyclone separator[J]. Minerals Engineering, 2014, 57:50-56.
[22]	Murthy Y R, Bhaskar K U. Parametric CFD studies on hydrocyclone[J]. Powder Technology, 2012, 230:36-47.
[23]	Hwang K J, Chou S P. Designing vortex finder structure for improving the particle separation efficiency of a hydrocyclone[J]. Separation and Purification Technology, 2017, 172:76-84.
[24]	CHU L Y, CHEN W M, LEE X Z. Effect of structural modification on hydrocyclone performance[J]. Separation and Purification Technology, 2000, 21:71-86.
[25]	PEI B B, YANg L, Dong K J, et al. The effect of cross-shaped vortex finder on the performance of cyclone separator[J]. Powder Technology, 2017, 313:135-144.
[26]	褚良银, 陈文梅, 李晓钟, 等. 水力旋流器结构与分离性能研究(四)[J]. 化工装备技术, 1998, 19(6):12-14. CHU L Y, CHEN W M, LI X Z, et al. Study on the structure and separation performance of hydrocyclones (Ⅳ)[J]. Chemical Equipment Technology, 1998, 19(6):12-14.
[27]	Sabbagh R, Lipsett M G, Koch C R, et al. An experimental investigation on hydrocyclone underflow pumping[J]. Powder Technology, 2017, 305:99-108.
[28]	ZHAO L X, JIANG M H, XU B R, et al. Development of a new type high-efficient inner-cone hydrocyclone[J]. Chemical Engineering Research and Design, 2012, 90:2129-2134.
[29]	Bai Z S, Wang H L, Tu S T. Experimental study of flow patterns in deoiling hydrocyclone[J]. Minerals Engineering, 2009, 22(4):319-323.
[30]	LEE M S, Williams R A. Performance-characteristics within a modified hydrocyclone[J]. Minerals Engineering, 1993, 6(7):743-751.
[31]	Chu L Y, Yu W, Wang G J, et al. Enhancement of hydrocyclone separation performance by eliminating the air core[J]. Chemical Engineering and Processing:Process Intensification, 2004, 43(12):1441-1448.
[32]	Neesse T, Dueck J. Air core formation in the hydrocyclone[J]. Minerals Engineering, 2007, 20(4):349-354.
[33]	Hararah M A, Endres E, Dueck J, et al. Flow conditions in the air core of the hydrocyclone[J]. Minerals Engineering, 2010, 23(4):295-300.
[34]	Narasimha M, Mainza A N, Holtham P N, et al. Air-core modelling for hydrocyclones operating with solids[J]. International Journal of Mineral Processing, 2012, 102/103:19-24.
[35]	Slack M D, Prasad R O, Bakker A, et al. Advances in cyclone modelling using unstructured grids[J]. Chemical Engineering Research and Design, 2000, 78(8):1098-1104.

水力旋流器新型出口挡板结构对分离性能的影响

Influence of new outlet configurations with baffle on hydrocycloneon separation performance

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