Rotary dryers are often applied to dry granular materials with high water content. You may spot them in many industries processing various types of materials.
In the cement industry, rotary dryers are often used to dry cement raw meals and raw materials such as lime stones and gypsum. Because high water content in raw materials may reduce the efficiency of cement crushers, and slow down the crushing process, the fresh limestones sent from quarries are best dried in rotary dryers before feeding into crusher machines.
In agriculture, rotary dryers are used to process fertilizer, biomass, animal feeds, and agriculture by products, etc.
In mining industry, several of minerals including limestone, clays, gypsum, sand, coke, bauxite, etc. can be dried by rotary drum
dryers.
In coal industry, rotary dryers are applicable for the drying of coal slime, raw coal, lignite, mixed refined coal, power plant fuel, and flotation coal, etc.
And chemical industry, metallurgy industry, food production industry, construction materials and other industries, the list goes on. They all employ rotary dryers for bulk material drying.