Northeastern University, Shenyang, a venture company successfully developed a superfine powder dryer, professional for ultra-fine and nano-size and other materials have strict requirements of the dry, is set dry, broken and graded as one of the multi-functional dryer , Has been successfully applied to ultra-fine zirconia, nano-calcium carbonate, nano-aluminum hydroxide, micron-grade aluminum hydroxide and nano-magnesium hydroxide and other materials drying. For materials with secondary agglomeration, the ultrafine powder dryer is an alternative to rotary flash dryers.
The basic working principle of the superfine powder dryer is through the high crushing capacity of the high-speed agitator, and the particle size control of the classifier and the re-breaking effect on the secondary agglomeration, and the use of the rotating air flow and the material particles to produce a large relative Movement, so as to strengthen the principle of heat and mass transfer to complete the drying of materials. Its unique advantage is the bottom of the installation of high-speed crushing device and the top of the adjustable classifier, you can easily control the product size; its structure is more advanced, maintenance more convenient. So that the ultra-fine powder dryer has a stronger crushing and dispersion ability, very suitable for ultra-fine materials drying.
For the bulk or sticky material can be used ultra-fine powder dryer, rather than flash dryer, especially with the second reunion of the material. Superfine powder dryer used in these materials when the effect is better. Through the transformation of the rotor structure and the control of dry air, nano-ultrafine powder dryer can be applied to organic materials such as nitrile rubber and other dry.
Ultrafine powder dryer has been successfully applied to nano-calcium carbonate, nano-aluminum hydroxide, powder-grade aluminum hydroxide and nano-magnesium hydroxide and other materials dry. As the nano-materials in the wet state, the strong surface adhesion makes the material has a great viscosity, resulting in material knot, poor mobility, transportation difficulties, to dry difficult. In the drying process, this combination of material caused by agglomeration, affecting product performance. So the drying process should prevent the material bridge, the agglomeration material effectively break up. In addition, nano-materials generally contain modifiers, whether organic or inorganic, heat easily decomposed. Therefore, the nano-materials need to consider the dry material heat. Ultrafine powder dryer is able to adapt to the characteristics of nano-materials drying, there is a very good drying effect.