... feed drying 4 wood pellet rotary dryer sawdust wood pellet rotary dryer 1 Introduction of Dryer The rotary drum dryer is one of the traditional ... in metallurgy, building materials, chemicals, coal washing, fertilizer, ore, sand, clay, kaolin, sugar areas such as diameter: Φ1000, Φ4000 ... in full contact with the hot air, dry2 Rotary DryerA.Rotary dryer is used for drying materials with a certain humidity ...