2-blade impeller PARAVISC-COAXIAL

anchor typefor agitatorsaxial-flow

An agitator system with independently operating wall and central impellers that can run with different shaft speeds and in both rotational directions. It is ideal for alternating low to high viscosity products with demanding requirements for homogeneity. In principle, the multi-purpose EKATO PARAVISC coaxial agitator system can be used for every kind of mixing task. This system is generally chosen for very complex mixing processes and for products with extreme flow behaviour. The EKATO coaxial mixing system can be easily tailored to particular vessel geometries and process requirements. From the technical point of view, there are virtually no limits to its range of applications. FIELDS OF APPLICATION The primary tasks for a coaxial agitator are homogenizing, dispersing and heat transfer. The maximum processable product viscosities depend on the respective type of impeller, and are generally about 1 million mPa ∙ s. Coaxial impellers can therefore be used for processing steps that were previously only carried out with kneaders or extruders in which flow anomalies were unimportant. Examples for typical coaxial systems are special polymers, resin emulsions or different kinds of pastes. Operating Principle Disintegration of solids as well as dispersing and homogenizing are mainly carried out by the central agitator. Mixing tasks in low viscous process phases can also be carried out by the central impeller (e.g. EKATO VISCOPROP or Dissolver). The diameter ratio, number of stages and blades, pumping direction, tip speed and input power are specified according to the respective material properties and process data.