Mobile Navigation

Solids Handling

View Comments

Consider mill drying as an alternative for spray drying

| By Chemical Engineering

The Drymeister (DMR) is a continuous, flash mill dryer that economizes the drying process based on its ability to handle high-solid-content feeds, saving time and energy. In the DMR process, wet material is fed into the grinding and drying section of the main body. The impact energy imparted by the grinding rotor disperses the wet material into very fine particles. A temperature-controlled hot-gas stream is drawn by an exhaust fan through the main body and fluidizes the fine particles in the grinding chamber. The dried particles are conveyed with the gas stream to the top section, where a classifier separates the particles of desired size, which are then recovered by a cyclone or filter. The particle size of the end product can be adjusted and controlled by changing the process parameters, such as classifier speed, outlet temperature and moisture content. — Hosokawa Micron B.V., Doetinchem, the Netherlands