INTRODUCTION
Advantages of rotary dryer produced by Dingli Machinery are as follows: The process of rotary dryer produced by our company is very advanced, which takes fast drying with high temperature, high heat transfer coefficient, high heat efficiency and large drying capacity. The rotary dryer produced by Dingli Machinery is with the high speed agitation drying, which disperses the viscid material sufficiently and improves the contact area of material, thereby improving the process of drying.
The rotary dryer produced by Dingli Machinery takes special scrapings device into the dryer so that avoid the material from sticking the wall. Dingli rotary dryer is widely used for drying materials in the industries of cemet, mine, contruction, chemical, compoud fertilizer, etc. Feeding and discharging unit of rotary dryer produced by Dingli Machineryis is installed with thermocouple to control drier temperature. The temperature change of dryer's feeding end can be indicated by the thermometer to control the inner drier temperature ( generally 250-350°C).
The working principle of rotary dryer produced by Dingli Machinery: 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 or feeding chute. Because the drier 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 exchanges heat sufficiently with inner heat flow.