Experimental Investigations on the Pressure Drop of a Two-cone Hydrocyclone for Separation Fine Particles from Waste Water
To separate fine particles from waste water, a novel hydrocyclone was designed which features two cone sections. It is expected that flowrate can be increased at high separation efficiency without additional demand of pressure drop. This paper presents experimental investigations on its pressure drop characteristics. In this paper, influences of flowrate, split ratio, protrudent length of vertex finder, inlet area, vortex finder diameter, and inlet type on pressure drop are comprehensively discussed. It is evidenced that proper operation range falls within q=5~10m3/h, and that the flowrate of the novel two-cone hydrocyclone can be increased by 50~60％. Pressure drop decreases with vortex finder diameter. Experimental data prove that pressure drop can be significantly affected by split ratio, which has not been explicitly pointed out in literatures on conventional single cone hydrocyclones. Especially, it has been found that protrudent length of vortex finder influences pressure drop in a complex way so that there is a maximum value in pressure dropprotrudent length curve. It is demonstrated that reduction of the inlet area by a half will make pressure drop increase by about 78％. In comparison, involute form of fluid flow channel of inlets makes pressure drop lower than cycloid form.
Novel Hydrocyclone Two-cone Hydrocyclone Pressure Drop Fine Particle Separation Wastewater Treatment
Qingguo ZHAO Weiqing LI Wei HE Guodong XIA
Key Lab of Enhanced Heat Transfer and Energy Conservation, Ministry of Education Key Lab of Heat Transfer and Energy Conversion, Beijing Municipality College of Environmental & Energy Engineering, Beijing University of Technology, China
国际会议
西安
英文
125-132
2009-07-11（万方平台首次上网日期，不代表论文的发表时间）