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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 11    No. 4    August 2001

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Vortex mechanism in hydrocyclones
XU Ji-run(徐继润)1, LIU Zheng-ning(刘正宁)1, XING Jun(邢 军)1,
LI Xin-yue(李新跃)1, HUANG Hui(黄 慧)1,
XU Hai-yan(徐海燕)1, LUO

1. Department of Chemistry and Chemical Engineering,
Dalian University, Dalian 116622, P.R.China;
2. Department of Mineral Engineering, Northeastern University,
Shenyang 110006, P.R.China

Abstract:On the basis of analyzing the vortex characteristics, a new mechanism of the vortex formation in hydrocyclones is developed. The main concept of the mechanism is that the vortex flow in a hydrocyclone is resulted from the overlapping of container rotation and hole leakage. The model is then used to explain the compound distribution of free vortex and forced vortex, predict the similarity of tangential velocity at different input pressures, and make count of the principle of small hydrocyclone with lower cut-size than large one. Meanwhile a new possible approach to a large hydro  cyclone with lower cut-size by minimizing or eliminating the air core is discussed briefly.

 

Key words: hydrocyclones; tangential velocity; vortex mechanism

ISSN 1672-7029
CN 43-1423/U

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