Description Of Rotary Drier:
Rotary drier is the materials drying device, the material in the rotating cylinder is dried in the process of spiral leaf and discontinuous spiral feed tube between the inner and outer turn-back. Sleeve structure can multiplied reduce the length of the dryer, as the cooling surface reduces, so that the loss of heat is reduced, double the number of heat exchange surface greatly enhance thermal efficiency.  

Working principle of rotary drum dryer Materials are sent to hopper of rotary drum dryer by belt conveyor or bucket elevator. The barrel is installed with slope to horizontal line. Materials enter the barrel from the higher side, and hot air enters the barrel from the lower side, materials and hot air mix together. Materials go to the lower side by gravity when the barrel rotates. Lifters on the inner side of barrel lift materials up and down to make materials and hot air mix completely. So drying efficiency is improved.