Working principle DDG series three-layer belt type cross flow dryer adopts advanced cloth forming technology, extrudes filter cake like materials from pressure filtration or centrifugal dehydration into granular strips and evenly spread on stainless steel mesh belt. The materials are added from the top layer and moved down layer by layer to dry. Finally, the products are sent out from the bottom layer. 1、 Working principle DDG series three-layer belt type cross flow dryer adopts advanced cloth forming technology, extrudes filter cake like materials from pressure filtration or centrifugal dehydration into granular strips and evenly spread on stainless steel mesh belt. The materials are added from the top layer and moved down layer by layer to dry. Finally, the products are sent out from the bottom layer. 2、 The main features are as follows: 1. The mesh belt has good air permeability, and the residence time can be adjusted arbitrarily; 2. The material is not easy to be broken due to no violent movement; 3. Large drying area and high drying intensity after extrusion; 4. The compound circulation air distribution structure is adopted, and the hot air is uniform; 5. It is divided into several units, and each unit can control the circulation circuit independently; 6 The hot air temperature is controlled by layers, which can meet the drying requirements of different processes.