The Nol-Tec air mixing is performed with an innovative pneumatic blender having no mechanical parts inside the machine. It is suitable for highly abrasive and fragile materials (also available in ATEX, DAIRY, GMP versions). Unlike conventional mechanical blenders, Nol-Tec’s air mixer uses only the "strength " of the air to get mixtures of products with different bulk density and particle size, in a quick and effective way, ensuring a specific control for the process requirements. During the blending cycle, compressed air pulses gently lift the materials upward and outward in a continuous circular motion until the blending target is achieved. The Nol-Tec mixer has the ability to blend large volumes of product (silos blending up to 300 m³). Compared to mechanical blenders, the energy saving, its versatility, and easy cleaning allow the application of Nol-Tec pneumatic blending in the food industry with particular usefulness to batching and formulations plants. Nol- Tec Europe has a modern Research Center in 1:1 scale, in order to test customers’ pneumatic blending application. For many years, Nol- Tec has been a partner of the SIAD – PRAXAIR group for blending applications with inert gas ( CO2 , nitrogen, etc . ) in all cases where there is a risk of :
- Biodegradation and/or oxidation products
- Moisture absorption.
These applications are also useful in the case where a control of temperature inside of a silo or hopper (heating and/or cooling ) is required.