The sweet potato dregs drum dryer can use a variety of drying processes, the following are some of the common processes:

1. Hot air drying: This is one of the most common drying processes. Hot air drying injects hot air into the drum to dehydrate and dry the sweet potato residue at high temperature. Hot air drying can use natural gas, oil or electricity as the heat source.

2. Intermittent drying: In this process, the sweet potato slag drum dryer will continue to dry with hot air for a certain period of time, and then stop heating to let the sweet potato slag cool naturally in the drum. This process is repeated until the desired drying effect is achieved.
These drying processes can be adjusted and optimized according to the characteristics of sweet potato residue, drying requirements and equipment performance to achieve the best drying effect. Which process to use depends on the manufacturer's choice and actual needs.