... contact with the hot air, dry2 Rotary DryerA.Rotary dryer is used for drying materials with a certain humidity or granularityin ... ,chemical ,ores, building materials, metallurgy and chemical industryB. Rotary dryer has a strong adaptability of materials and it can dry ... dryer has playing important role in various industriesC.Rotary dryer is applied in materials like coal slurry, mud, filter gypsum, ...