Product category:
Mixers, Blenders, Grinders and Mills
News Release from: Mixing Solutions | Subject: The Mixing Solutions 'Counterflow'
Edited by the Processingtalk Editorial
Team on 27 February 2003
Impeller for mixing shear thinning
fluids
The Mixing Solutions 'Counterflow' impeller is designed to improve mixing performance and reduction of blend times, particularly for high-viscosity shear thinning fluids such as paints and coatings
The Mixing Solutions 'Counterflow' impeller has been designed to improve mixing performance and reduction of blend times, particularly for high-viscosity shear thinning fluids such as paints and coatings, whilst offering substantial energy savings over conventional open impellers Easily retrofitted to existing agitators, these impellers operate at considerably higher impeller-to-tank diameter ratios
This article was originally published on Processingtalk on 18 Dec 2007 at 8.00am (UK)
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This is a significant advantage with shear thinning fluids where stagnancy at the vessel wall can be a problem.
Internal and external blades create "Counterflow" by pumping both upwards and downwards providing dependable product consistency in shorter cycle times.
They eliminate stagnant zones at low power.
These impellers are ideal for paints, coatings, polymers, foods, cosmetics where non-Newtonian fluid properties or wide viscosity changes are encountered.
Used in heat transfer applications, they are claimed to provide up to 200% improvement over standard impellers.
The ability to mix difficult high viscosity/shear thinning and water-like fluids in the same vessel with or without baffles makes them ideal for make-up vessels.
They also offer controlled vortexing and adjustable local dissipation, and can replace helical ribbon and anchor impellers in high viscosity applications.
Maintenance costs are reduced as the slower rotating speed of these impellers will increase the life cycle of both seals and equipment.
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