They resembles multi bladed paddle agitators with short blades, turning at high speeds on a shaft mounted centrally in the vessel. Blades may be straight or curved, pitched or vertical. Diameter of impeller turbine is smaller than with paddles, ranging from 30 to 50% of vessel diameter. The principle currents generated by turbines are radial and tangential (the tangential component induces vortexing
Devices to produce agitation Power consumption of agitators Blending and Mixing Suspension of solid particles ... Turbines High efficiency impellers ... For specific time of mixing, the best mixer is the one
Suitable for high viscosity liquids and capable of preventing the deposit on tank wall.Types of agitators axial type propeller Standard type： S/d=1, B/d=0.1 Z=1 2 low speed, the outer edge is very close to the tank wall . helical ribbon 11 standard type d/B=4 10，Z=2 blade end speed 1.53 m ...
It is essential to know the flow regime in the mixer. In fully turbulent conditions, with Reynolds number greater than 10,000, the agitator's power is proportional to fluid density, rotational speed, and
1000+ Gallon Tank Agitators Mixers MXD industrial mixers and agitators in this category are designed to be mounted in fixed tanks which handle hundreds to several thousand gallons of product. We provide ANSI flange, plate and top entry mountings and can also supply you with the right tank along with pumps, valves and other accessories.
Agitator speed, RPM of shaft is prefered as 100 or 200 or 300. This speed is easier to achieve with motor/gearbox combination. Power number, which decides power required for mixing, is 1.35 for 3 bladed, 1.4 for 4 bladed, 1.45 for 5 bladed, 1.5 for 6 bladed impeller.
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High Speed Disperser to a Multi Shaft Mixer. For instance, in a Dual Shaft Mixer, the disperser is complimented by a slow speed anchor agitator which helps promote bulk flow and uniform batch temperature. The simple addition of an anchor extends the high speed dispersers viscosity range to several hundred thousand centipoise.
Characteristic of fluid velocities in most chemical process industry's agitated batches. Scale 6 agitation will blend miscible fluids with specific gravity differences less than 0.6 and viscosity ratio of 10,000. Scale of 7 to 10 Characteristic of applications requiring high fluid velocity agitated batches.
June 10, 2020
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