Which product works best in a rotary drum dryer

Rotary drum dryers can dry many different types of products, which are not only suitable for uniform solid particles, but also an excellent solution for non-uniform solid particles. The primary factor determining the dryer is whether the material treatment of the dryer matches the product requirements.

Products with uneven particle size are ideal choices for rotary drum dryers, but the flight system for the left sample is different from that for the right sample. It is important to understand the characteristics of the feed product in order to choose the best flight design.

The major advantage of a rotary drum dryer is its ability to accommodate products with multiple sizes of particles and moisture content through the use of suitable flight packaging. As shown in the above figure, wood comes in various shapes and sizes. Compared to smaller and lighter particles, dry gases carry larger heavy particles at a smaller distance. This means that smaller particles can leave the dryer before they become too dry, and larger particles can remain in the drum until they dry enough. These flights can be designed to make larger components in the drum longer and allow smaller components to flow faster. Appropriate flight packaging helps achieve unified product quality and can also reduce emissions.