Features:
● High thermal efficiency. Since the heat transfer mechanism of the drum dryer is heat conduction, the direction of heat transfer remains consistent throughout the entire operation cycle. Except for heat loss through the cover and thermal radiation, all remaining heat is used for evaporating moisture from the material film on the drum, achieving a thermal efficiency of 80%-90%.
● High operational flexibility and wide applicability. The drying factors of the drum dryer can be adjusted. Parameters such as the concentration of the feed, the thickness of the coating film, the temperature of the heating medium, and the rotational speed of the drum can all alter the drying efficiency of the drum dryer, and these factors are independent of each other. This brings great convenience to drum drying operations, enabling it to adapt to the drying of various materials and meet different production capacity requirements.
● Short drying time. The drying cycle of materials is generally only 10-300 seconds, making it suitable for heat-sensitive materials. If the drum dryer is placed in a vacuum chamber, it can operate under reduced pressure conditions.
● High drying rate. Since the coating applied to the drum wall forms a very thin film, typically 0.3-1.5 mm, and the directions of heat and mass transfer are consistent, the surface of the material film can maintain an evaporation intensity of 20-70 kg?H2O/m2?h.
Application:
The HG series drum scraper dryer is widely used in the food, chemical, pharmaceutical, and other industries for processes such as flaking and drying viscous, paste-like materials.