Minimizing impeller slurry wear through multilayer paint modelling

被引：0
|
作者：
Wu, J [1 ]
Ngyuen, B
Graham, L
Zhu, Y
Kilpatrick, T
Davis, J
机构：
[1] CSIRO, Fluids Engn, Highett, Vic 3190, Australia
[2] Rio Tinto TS, Bundoora, Vic 3083, Australia
来源：
CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 2005年 / 83卷 / 05期
关键词：
slurry mixing impeller erosion; multilayer paint modelling; vortex-induced wear;
D O I：
10.1002/cjce.5450830505
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The present paper describes an experimental study using a multilayer paint technique to illustrate the wear patterns developed on an eight-bladed disc turbine in a gas/liquid/solids three-phase mixing tank. A distinctive wear pattern was found to develop on the low-pressure side of the blades. The patterns were found to be caused by the two intersecting vortices that developed along the blades. Several modifications were made to the impeller geometry to reduce wear. A new impeller design, which experienced a lower wear rate and showed an improved off bottom solids suspension performance, is recommended for operating in gas/liquid/solids reactors.
引用
收藏
页码：835 / 842
页数：8
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