Food dryer is a batch, continuous production drying equipment, the main heating methods are electric heating, steam heating, hot air heating. The main principle is that the material is evenly laid on the mesh belt. The mesh belt uses a 12-60 mesh wire mesh belt and is dragged by the transmission device to move in the dryer. The hot air flows through the material and the water vapor flows from The drain hole is discharged to achieve the purpose of drying. The length of the box is formed by a combination of standard sections. In order to save space, the dryer can be made into a multi-layer type. Commonly there are two rooms with three floors, two rooms with five floors, and lengths. 6-40m, effective width 0.6-3.0m.