STELA drum driers are suitable for continuous drying of bulk goods of industry and agriculture, like e.g. for drying of green waste. The drier can be designed as a stationary machine or as mobile plant, mounted on a frame.
Operating method
The wet product is fed into the drying drum via suitable feed devices. Transporting blades on the feed side of the drum take up the product and carry it to the drum fixtures. The choice of drum fixtures is determined by the product characteristics. The product is usually dried in direct flow. The wet product meets the hot drying gas with a temperature up to 1000 °C. The retention time of the product in the drier depends on the drum speed, drum inclination, kind of drum fixtures, flow rate of the drying gas and the damming device at the end of the drier.
Advantages at first sight:
• evaporative capacities up to 15 t water/hour
• high throughput with constant final moisture, also with varying initial product moistures
• wide control range of the drying gas temperature (150 – 1000 °C), so that the suitable drying temperature can be adjusted for all products
• direct or indirect heating
• low fault liability – high operating safety
• low energy consumption
Fields of application: potatoe and beet chips, poultry manure, sewage sludge, wood waste, chaffed forage etc.