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The Wingjet, which is used in flue gas desulphurisation units of fossil fuel-fired power stations is a good example of an impeller with specially optimised flow properties.
The primary tasks of these impellers, which are mostly side-entry, is to suspend gypsum and to disperse air in very large absorber tanks. In designing the EKATO Wingjet specially for this process, the emphasis was on increasing the efficiency.
The blade design was based on the required uniform power transmission over the length and circumference of the blades. The winglets suppress vortexing around the tip of the blade, thus preventing erosive wear in this region that occurs with conventional propellers.
- Optimized axial flow with high power density
- High mass transfer rate by dispersion of oxidation air
- Winglets attached to the tips of the blades minimize wear
- Higher gassing rate and improved suspension capability enables
cost reductions, reduction in the number or power of the agitators