2000 Volume 18 Pages 221-229
Experimental and theoretical studies have been conducted on the classification of fly ash particles using a bench-scale louver separator. A new type of louver blade based on Joukowski's theory demonstrated classification performance superior to that of the plane-type blade. Classification performance changed with the angle of louver blades, the optimum blade angle being 50º for the Joukowski type and 70º for the plane type.
The finite element method was used to solve the Navier-Stokes equations. Calculated partial separation efficiency agreed with the experimental results.
The unburned carbon amount on the classified fine particle decreased about 20 to 30 wt%.
† This report was originally printed in J. Soc. Powder Technology, Japan. 36(6), 454-461 (1999) in Japanese, before being translated into English by KONA Editorial Committee with the permission of the editorial committee of the Soc. Powder Technology, Japan.
