Gelatin drying is an important processing step, and the Drum Scraper Dryer is one of the common equipment used in this process.
Working principle of the drum scraper dryer
1. Raw material coating
The gelatin solution is evenly coated on the surface of the rotating drum, which is heated internally (usually steam heated), and the surface temperature can quickly evaporate the liquid.
2. Drying process
As the drum rotates, the liquid gradually forms a film and is heated to evaporate the water, leaving a dry solid film.
3. Scraper stripping
The solid film is scraped off by the scraper to form dry gelatin particles or flakes.
4. Collection and cooling
The scraped material is transported to the subsequent process for cooling, crushing and packaging.
Application of Drum Scraper Dryer in Gelatin Production
Processing requirements: Gelatin is sensitive to drying temperature, and the temperature and speed of the drum scraper dryer need to be precisely adjusted to avoid gelatin denaturation or degradation.
Thickness control: The thickness of the drying film is usually controlled between 0.2-0.5 mm to achieve rapid drying and uniform peeling.
The scraper drum dryer can be operated continuously with high thermal efficiency, suitable for mass production. By adjusting the drum speed and steam pressure, the thickness and dryness of the product can be accurately controlled. It is suitable for processing liquids, high-viscosity slurries, etc.
WhatsApp
