A drum scraper dryer is an internally heated conduction-type continuous drying equipment. The rotating drum, with a thick layer of material adhering to its lower trough, transfers heat through pipes to the inner wall of the drum, which then conducts it to the outer wall, and finally to the material film, causing the moisture in the film to evaporate and dehumidify, thereby drying the moisture-containing material. The dried material is scraped off the drum surface by a blade and transferred to the spiral conveyor below, where it is concentrated and packaged.

Features:
● High thermal efficiency. Due to the heat transfer mechanism of the drum dryer being thermal conduction, the heat transfer direction remains consistent throughout the entire operation cycle. With the exception of heat loss from the lid and heat radiation, all remaining heat is used for the evaporation of moisture in the drum material film, achieving a thermal efficiency of80%-90%。
● High operational flexibility and wide applicability. Various drying factors of the roller dryer can be adjusted, such as the feed concentration, the thickness of the paint film, the temperature of the heating medium, and the speed of the roller rotation, all of which can alter the drying efficiency of the roller dryer, with no interdependencies among them. This greatly facilitates the roller drying operation, enabling it to accommodate the drying of various materials and meet different production output requirements.
● Short drying time. The drying cycle for the material usually only takes10-300Seconds, suitable for thermally sensitive materials. If the drum dryer is set in a vacuum chamber, it can operate under reduced pressure conditions.
● High drying rate. Due to the thin coating film applied to the cylinder wall, generally,0.3-1.5mmAnd heat and mass transfer directions are consistent, the surface of the material film can be maintained20-70kg•H2O/m2•h High evaporation strength.

HGTrommel Auger Dryer(Single Drum, Double Drum)Trommel Dryer