Abstract
A tall vessel with a telescopic draught tube is proposed for mixing suspensions. The paper presents the relations for calculating the agitator power consumption and the speed necessary to keep a particle in suspension.
Highlights
Large tall vessels with a draught tube are used for mixing suspensions, especially when high homogeneity is desirable
Water suspensions of five fractions of glass balotine with mean diameters from 0.15 to 1.28 mm with volumetric content of particles cv in the range from 0.025 to 0.45 were a) used in the measurements
The power consumption was measured by a tensometric pick-up with a GMV amplifier made by Lorenz Messtechnik at the agitator speed necessary to initiate np and maintain nk particle suspension
Summary
The main disadvantage of this arrangement is that particle suspension is difficult after mixing has been interrupted. In the case of small particles the speed for initiating particle suspension np is significantly greater than the speed necessary to keep a particle in suspension nk. Operation at high speed requires high power consumption. To overcome this difficulty, the telescopic withdrawable
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