Scraper dryer

The scraper dryer is a kind of rotary drying equipment with internal heating and conduction. The wet materials get the heat transferred by heat conduction way outside the drum to remove moisture, so as to achieve the required moisture content. The heat is transferred from the inner wall of the cylinder to the outer wall of the cylinder, and then passes through the material film. It has high thermal efficiency and can be operated continuously. Therefore, it is widely used in the drying of liquid materials or strip materials More applicable. The structure can be divided into two types: single drum dryer and double drum dryer. In addition, it can be divided into atmospheric pressure and decompression according to operating pressure.

Features and applications:

1. Flexible operation, wide adaptability, can adapt to the requirements of various materials and different output

2. High thermal efficiency, the general thermal efficiency is about 80-90%

3. Short drying time: the drying material on the outer wall of the drum has a wet film of 0.5-1.5mm at the beginning of drying, and the whole drying cycle is only 10-15s, which is especially suitable for heat sensitive materials

4. High drying rate: due to the thin film and the same direction of heat and mass transfer, the evaporation intensity of 30-70kg · H2O (m2. H) can be maintained on the film surface

Widely used in: rice flour, Cereals, α - starch, potato powder and other food dried products into flakes, powders and granules.