Process principle introduction of desiccant air dryer

　　The purpose of drying is for the use of materials or the need for further processing. For example, the drying of wood before making wooden molds and woodware can prevent the deformation of the product, and the drying of the ceramic blank before calcination can prevent the finished product from cracking.In addition, the dried material is also convenient for transportation and storage, such as drying the harvested grain below a certain moisture content to prevent mildew.Since natural drying is far from satisfying the needs of production development, various mechanized air dryers are increasingly used.
　　Desiccant air dryer is a mechanical device that uses thermal energy to reduce the moisture of the material. It is used to dry the object. For the use or further processing of the material, the moisture in the material is vaporized and escaped by heating to obtain the specified moisture content. Mechanical equipment for solid materials.

　　The drying rate of the material depends on the evaporation rate of the surface and the diffusion rate of the internal moisture.Generally, the drying rate in the early stage of drying is controlled by the evaporation rate of the surface. As long as the external conditions for drying remain unchanged, the drying rate and surface temperature of the material remain stable. This stage is called the constant drying stage.When the moisture content of the material is reduced to a certain level, the diffusion rate of the internal moisture component to the surface decreases, and is less than the surface vaporization rate. The drying rate is mainly determined by the internal diffusion rate, and continuously decreases with the decrease of the moisture content. This stage is called It is the slow drying stage.
　　The desiccant air dryer can use the modular structure to absorb the gaseous or liquid water molecules in the compressed air into the adsorbent through the molecular attraction and adsorption force of the adsorbent itself filled in the adsorbent tube unit, and the adsorbent discharges the water during regeneration. So as to achieve the dual process of adsorption and regeneration.
　　The dew point of the air processed by the desiccant air dryer can cover the processing effect of the freeze dryer, so in principle, all occasions using the freeze dryer can be replaced by the dryer, but the reverse is not possible.However, because the energy consumption of the freeze dryer is much lower than that of the product, it is certainly not economically feasible to replace the freeze dryer with this product. So in theory, the two should be used in combination.
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