The Outer Packaging Machine has a certain spray speed, and hot air enters the mixing mill through the inlet tube from the Outer Packaging Machine unit at the bottom of the Outer Packaging Machine. When it comes to materials, strong wind shear, wind floating and spinning are forced. As a result, these materials are diverted to micronize by centrifugation, cutting, collision, friction enhancing mass transfer and heat transfer. At the bottom of the Outer Packaging Machine, the larger and weter clusters of the granules are comminuted by the mixer, but less wet and smaller particles will pass through the vortex and can be further processed by the Outer Packaging Machine. Because of the swirling flow of the gas and the two phases of the solid, and the solid phase has a greater inertia than the gas phase, the relative speed of the Outer Packaging Machines is much greater to enhance mass transfer and heat transfer between each other. Therefore, the Outer Packaging Machine has a strong productivity.
In the high temperature zone at the bottom of the Outer Packaging Machine, the heat sensitive material is not directly related to the hot surface, and the Outer Packaging Machine is also equipped with special equipment to solve the problem of changing the heat sensitive material in cooking and color.