Effect of particle content on agitator speed for off-bottom suspension

This paper deals with the effect of particle content on agitator speed for off-bottom suspension. The measurements were carried out with a pitched six-blade turbine characterized by agitator to vessel diameter ratio d/D=0.3 in dish bottomed vessel equipped with four baffles. The resulting equation for off-bottom suspension was obtained in a wide range of particle sizes for volumetric particle content up to 20%.