Product Introduction / INTRODUCE
The rotary drum dryer is a cylindrical body with a slight incline and adjustable speed within a specific range. Wet material is fed into the drum by a feeding machine. Under the action of the scraper evenly distributed inside the drum, the material is uniformly distributed and dispersed within the dryer, where it comes into full contact with the hot air passing through the drum (either co-current or counter-current). This accelerates the drying heat transfer and mass transfer, achieving the drying goal.
Product Specifications / Parameters
PRINCIPLE
The working principle of the drum dryer is to form a film of liquid or slurry material on the surface of the drum, which is heated by steam or other heat carriers. The material is dried as the drum rotates once. A scraper is then used to remove the product, exposing the drum surface again to the raw material, where it forms a new film for further drying.
Product Features / CHARACTERISTICS
High drying rate
● High operational flexibility: Adaptable to a wide range of materials and varying production volumes.
High thermal efficiency: Generally, its thermal efficiency is around 80% to 90%.
● Short drying time: The drying cycle of the material typically ranges from 10 to 300 seconds, suitable for thermosensitive materials. The roller dryer can be operated under reduced pressure when placed inside a vacuum chamber.
Product Application/USE
Chemical, mining, metallurgy, and other industries, large-grained, high-density material drying.
Mine, blast furnace slag, coal, metal powder, phosphate fertilizer, ammonium sulfate.
● Drying of powders and granular materials with specific requirements
HP foaming agent, distiller's grains, light calcium carbonate, activated clay, magnetic powder, graphite, drug residue.
● Materials requiring low-temperature drying and continuous large-volume drying operations.
