The effects of top plate rotation of hydro-cyclone on particle classification performance were studied experimentally and via a simulation study. It was found that the cut size of hydro-cyclone decreases as the rotation speed of the top plate increases. The sharpness of classification of cyclone with top plate rotation was increased in a wide range of operational conditions compared to the Yoshioka type hydro-cyclone.Newly proposed type-D cyclones with a special plate gave the smallest cut size with a high accuracy in classification. The increase in classification sharpness was attributed to the occurance of outward flow near the top plate, which was also confirmed with the CFD simulation. The type-E cyclone with rotation of cylindrical pipe also gave smaller cut size compared to the standard cyclone.The computer simulation was found to give qualitative agreement with the experimental results.
[1]
Akira Kobayashi,et al.
The Control of Particle Size Separation by the Use of a Hydrocyclone
,
1997
.
[2]
Fine Particle Separation by Revised Type Air-Cyclone Classifier
,
1993
.
[3]
Numerical Study of High Reynolds Number Flow around a Circular Cylinder
,
1983
.
[4]
Satoshi Akiyama,et al.
Effect of apex cone height on particle classification performance of a cyclone separator
,
2003
.
[5]
S. Patankar.
Numerical Heat Transfer and Fluid Flow
,
2018,
Lecture Notes in Mechanical Engineering.
[6]
Satoshi Akiyama,et al.
Particle Classification with Improved Hydro-cyclone Separator
,
2001
.