Improvements of the cyclone separator performance by down-comer tubes

被引:36
|
作者
Bogodage, Sakura Ganegama [1 ]
Leung, A. Y. T. [1 ]
机构
[1] City Univ Hong Kong, Dept Architectural & Civil Engn, 83 Tat Chee Ave, Kowloon, Hong Kong, Peoples R China
关键词
Cyclone separator; Down-comer tube; Solid loading rate; Pressure drop; Overall collection efficiency; GAS CYCLONE; DUST OUTLET; PARTICLE CLASSIFICATION; COLLECTION EFFICIENCIES; PRESSURE-DROP; FLOW PATTERN; SIMULATION; GEOMETRY;
D O I
10.1016/j.jhazmat.2016.02.072
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Enhancement of fine particle (PM2.5) separation is important for cyclone separators to reduce any extra purification process required at the outlet. Therefore, the present experimental research was performed to explore the performance of cyclone separators modified with down-corner tubes at solid loading rates from 0 to 8.0 g/m(3) with a 10 m/s inlet velocity. The study proved the effectiveness of down-corner tubes in reducing the particle re-entrainment and increasing the finer separation with acceptable pressure drops, which was pronounced at low solid loading conditions. The experimental results were compared with theories of Smolik and Muschelknautz. Theories were acceptable for certain ranges, and theory breakdown was mainly due to the neglect of particle agglomeration, re-entrainment and the reduction of swirling energy, as well as the increase of wall friction due to presence of particles. (C) 2016 Published by Elsevier B.V.
引用
收藏
页码:100 / 114
页数:15
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