Advantages in the working process of spin flash dryer

The structure of the spin Flash Dryer can divide the working process into four stages: crushing, gas-solid contact, drying, and grading. These four working processes are also not available in other dryers at the same time.

Crushing: Since the Rotary Flash Dryer is mainly used for drying paste-like materials, the materials are immediately crushed by stirring blades and high-speed airflow after entering the Dryer, which maximizes the dispersion of materials and the surface area of wet materials per unit volume.

Gas-solid mixing: The Rotary Flash Dryer uses air as the heat carrier, and whether the gas-solid mixing can be effectively achieved is the main factor affecting the drying rate. The stirring blade breaks the material and produces a dispersion effect. At the same time, the hot air entering the dryer is also in a highly flowing state, and quickly achieves gas-solid mixing.

Drying stage: After the material is crushed, it is blown up by the high-speed rotating hot air from the bottom, forming a relatively stable fluidized bed in the drying chamber. evaporated at this stage.

Classification stage: The classifier is an annular baffle installed at the lower part of the outlet of the dryer. The material rises with the air flow. Due to the centrifugal force, the large and wet materials are affected by the centrifugal force and the rotation radius increases. When the rotation radius is larger than the radius of the classification ring, the material is blocked in the dryer, and can be discharged from the dryer through the classifier until the requirements are met.