哈尔滨工业大学学报（英文版）2006，Vol.13Issue(3)：294-298,5.
Pressure characteristics of a hydrocyclone for fine particle separation
Pressure characteristics of a hydrocyclone for fine particle separation
摘要
Abstract
Solid-liquid hydrocyclones are mainly used to separate large particles, such as the particles of drilling fluid in petroleum industry, and large mineral particles. Till now the hydrocyclonic separation for fine particles is still a big problem. Basic separation principle of hydrocyclones and experimental research facility are simply introduced. The difficulty of separating fine particle is analyzed. Based on a solid-liquid hydrocyclone used for separating fine particles, relationships of dimensionless pressure characteristic parameters, i.e. Euler number and pressure drop ratio, with several main dimensionless parameters, such as split ratio, swirl number and gas-liquid ratio, were experimentally studied in detail. The research was carried out by using the hydrocyclonic separation experimental rig at the University of Bradford. It is shown that the less the size of particle, the less the value of radius of the balance orbit occupied by the particle, and then the more difficult for the particle to be separated. Experiments indicate that Euler number of the tested hydrocyclone increases with the rise of Reynolds number, split ratio, swirl number and gas-liquid ratio respectively, and the pressure drop ratio falls with the increase of Reynolds number, split ratio and swirl number respectively. It is concluded that the most effective way to decrease the unit energy dissipation of hydrocyclone is to reduce swirl number or gas-liquid ratio of the mixed media.关键词
water treatment/separation technology/hydrocyclone/pressureKey words
water treatment/separation technology/hydrocyclone/pressure分类
资源环境引用本文复制引用
ZHAO Li-xin,JIANG Ming-hu,SUN De-zhi,BELAIDI A,THEW M..Pressure characteristics of a hydrocyclone for fine particle separation[J].哈尔滨工业大学学报（英文版）,2006,13(3):294-298,5.基金项目
Sponsored by the Scientific and Technological Project of Heilongjiang Province( Grant No. 2005G1785 -00) and China Scholarship Council (Grant No.CSC 21823043 ). （ Grant No. 2005G1785 -00）
