... ,fertilizer etc. Principle of workrotary drum dryer is tilted slightly and the cylindrical rotationg body,the wet materials enter into the ... press cake; the free flow of power, granule, flake, fiber and other dry materialsSecond, from the material scope of application, it ... forms of heatingFourth, from the drying temperature, it is between 60°C and 600°C, in principle, the higher the temperature, the ...