The main impeller having precise minimal clearance with flat bottom of processing bowl in combination with chopper mounted on side wall, gives desired high shear mixing.
The most effective design of ribbon layout is the double spiral in which the outer ribbon moves the product in one direction and the inner ribbon moves it in the opposite direction. The ribbons rotate and move materials both radially and laterally to insure through blends in short cycle times.
Nauta dryer is a kind of conical vacuum dryer, there is an agitator inside the cylinder to stir the raw material, which could reach GMP standard, is widely used for pharmaceutical, biological, chemical and food industries. And it is suitable for drying and concentrating liquid, filter cake, powder and particle material.
The thermal energy needed for drying is introduced into the product through a heated jacket that can be heated by various media including steam, hot oil and water. The jacket provides rapid distribution of heat into the product in combination with efficient mixing.