Performance of a Centrifugal Slurry Pump

The performance of slurry pump impellers strongly depends upon the complex configuration of the asymmetrical flow field in the axial direction which is highly unsteady. The flow field, in turn, is considerably affected by the design parameters of the volute casing and impeller geometry.

Although many studies have focused on their optimization in water pumps, few studies have been conducted about centrifugal slurry pumps. The current study investigates the performance of a centrifugal slurry pump experimentally and numerically on, using clear water instead of slurry mixtures to avoid the effects of nonlinear intense the slurry mixtures. You can get more insights into slurry pumps and parts via www.schurcoslurry.com/slurry-pumps.

A parametric study is carried out numerically to investigate the effects of blade configuration on the performance of slurry pumps. Blade number, blade height and blade thickness are considered as the affecting parameters. The results show that the increase in blade number leads to an increase in head and shaft power.

However, the hydraulic efficiency is variable and depends on flow rates. Around operation conditions of the studied pump, the impellers which have three and four blades are more efficient than impellers with two and five blades. Furthermore, by increasing blade height from 30 mm to 50 mm, the performance of the slurry pump increases only at high flow rates. 

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