Drum scraper dryer

The working principle of the drum dryer is to make the liquid or slurry like materials form a film on the drum surface heated by steam or other heat carriers, and the film will be dried during the drum rotation. The product will be scraped off with a scraper, exposing the drum surface and contacting the raw materials again to form a film for drying.

◎ with steam or heat transfer oil as the heat source, the heating area is large, the thermal efficiency is high, and the heating is uniform.

◎ the drying rate is large, the heat and mass transfer process of the wet material film on the cylinder wall is consistent from the inside to the outside, and the temperature gradient is large, so that the material film maintains a high evaporation intensity.

◎ the drying time is short, generally about 7-30 seconds, suitable for heat sensitive materials.

◎ convenient operation and maintenance.

The drum dryer is widely used in the production and drying of sticky and paste materials in food, chemical, pharmaceutical and other industries.