Air Dryer

The drying process of the air dryer consumes a lot of heat energy. In order to save energy, some materials with high moisture content, suspensions or solutions containing solid materials are generally mechanically dehydrated or heated and evaporated, and then dried in the air dryer to obtain Dry solid.

The purpose of using the air dryer is for the needs of materials use or 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 meeting the needs of production development, various mechanized air dryers are more and more widely used.

During the drying process of the air dryer, it is necessary to complete the transfer of heat and mass (moisture) at the same time to ensure that the partial pressure (concentration) of the moisture vapor on the surface of the material is higher than the partial pressure of the moisture vapor in the external space, and that the temperature of the heat source is higher than the temperature of the material.