The rotary drum dryer is a rotating metal plate rolling round cylinder welded with steel plate. The cylinder is equipped with a tire. The drum by means of tire bearing is supported on the roller. The both sides of the wheel are equipped with a pair of loaded gear wheels to instruct and limit the cylinder to ran along the tilt direction. the high efficient rotary drum dryer is commonly used in fertilizer production line with fertilizer granulator.The cylinder is rotated by means of electric motors, gear box drive gear mechanism. The cylinder has a certain tilt and rotation. The dryer slopes slightly so that the discharge end is lower than the material feed end in order to convey the material through the dryer under gravity. Material to be dried enters the dryer, and as the rotary dryer rotates, the material is lifted up by a series of internal fins lining the inner wall of the dryer. The barrel is installed with slope to horizontal line.it is used with rotary drum granulating machine to make compound fertilizer granules
Main features of rotary drum dryer
(1)Rate of ball-becoming up to 70%, have a small amount of returned material, expected, small granularity of returned material, can be re-granulation.
(2)Steam heating, improve material’s temperature, so that have lower moisture when material change into the ball, improve dryness efficiency.(3)Use rubber plastic for lining, raw materials difficult to stick cylinder, and played the role of anti-corrosion, keep warm. (4)High yield, little power consumption, low maintenancecosts.
4) Wide scope of application. the rotary drum dryer machine can be used for drying granular materials, especially benefit for those materials with big adhesion.
5) the rotary drum dryer has great operating flexibility. The production allows a larger fluctuation range in the output of products, but not influence the quality of product.