Semicircular blade turbine impeller

Introduction

Semicircular tube disc turbine agitator is a specialized type of radial flow impeller used in mixing applications, particularly for gas-liquid dispersion.

Its key feature is the semicircular (half-pipe) cross-section of the blades. This concave design distinguishes it from traditional flat-blade turbines (like the Rushton turbine).

Product Features

• Primary Advantage: The half-pipe blade geometry effectively suppresses gas cavity formation behind the blades during high-speed rotation. This leads to:

• Higher gas handling capacity (about 30% improvement)

• Better mass transfer efficiency

• Lower power consumption compared to flat-blade designs under gassed conditions

• Flow Characteristic: It produces a strong radial flow pattern—liquid is discharged horizontally from the impeller towards the vessel wall, creating efficient bulk mixing and shear.

• Typical Applications: Fermentation processes, chemical reactors requiring gas dispersion, wastewater treatment, and any process involving gas-liquid-solid multi-phase mixing