Tray type continuous dryer is a highly efficient conduction type continuous drying equipment. Its unique structure and working principle determine that it has the characteristics of high thermal efficiency, low energy consumption, small footprint, simple configuration, convenient operation and control, and good operating environment. It is widely used in chemicals, medicine, pesticides, food, feed, and agriculture. Drying operations in industries such as by-product processing. It is well received in practice in various industries. Now it produces three types of atmospheric pressure, airtight, vacuum, 1200, 1500, 2200, 3000 four types, A (carbon steel), B (stainless steel in contact with materials), C (on the basis of B, add steam pipes) The road, main shaft and bracket are made of stainless steel, and the cylinder and cover are lined with stainless steel).