Rotary Dryer

Usage and Application

Rotary drying equipment is a kind of rotating continuous drying equipment with internal heating conducting-style. Certain thickness of materials film attach to the drum from material liquid vessel under the drum. Heat is transferred to the internal wall of the cylinder through pipes and then to the external wall and to materials film, to evaporate the moisture in materials film so as to dry materials. Dried products are then scraped off by the blade fitted on the surface of the cylinder, fall down to the spiral conveyor under the blade, and are conveyed, collected and packed.

Working Principle

Rotary dryer adopts direct flow type of heating with heat soure from firing unit. The material to be dried is pushed back immindiately by spiral board when enters the shell from feeding tank and feeding chute. Because the dryer is installed in slope, material flows to the back end under gravity and rotation force, meanwhile, it is lifted by board repeatedly and thrown down accordingly, which make the material form even curtain, and exchange heat sufficiently with inner the heat flow. In the end, water in the material is dried by repeatedly scattering.

Feature

1. Rotary dryer has Strong anti overload ability, large handling capacity, less fuel consumption, low dry cost.
2. Adopt downstream drying method, the hot air with wet materials enter into the dryer by the same side, can use the high temperature air to achieve very high evaporation strength, the exist temperature of dryer is low, the thermal efficiency is high.
3. According to different materials' properties change operation parameters, make the material in the dryer cylinder body can form a stable all broken fabric curtain, qualitative heat is more fully.
4. New feeding and discharging device eliminate the feeding jams, discontinuous, uneven and returning charge etc. Phenomenon, reduce the load of dust removal system.
5. New internal structure, strengthened the already scattered materials' cleaning and heat transfer effect, eliminated the sticky phenomenon in cylinder body's inner wall, make material moisture, sticky adaptability more stronger.

6. Rotary Dryer has realized "zero horizontal thrust", greatly reduce the wear of block roller, cylinder's operation is smooth and reliable.
7. Rotary Drying machine adopts "center-adjusting roller device", make the cooperation of roller and rolling ring always show linear contact which greatly reduces the wear and power consumption.

8. According to customer's request control product size and moisture, when dry slime, the moisture can reach below 8%, particle size can be controlled below 8mm.