... Professional manufacturer of Rotary Dryer 1.moisture of raw materail can be reduced to below 5% 2.coal, oil, gas can ... feeding plate, driving and supporting device, etc3. Application of rotary drierRotary drier is used to dry slag, clay, ... chemical, metallurgical, building materials industries.4. Working principle of rotary drierIts principle of operation: the raw material plate which is arranged ...