Strong Drying Ability Slag Rotary Dryer Operation Stable High Efficient And Capacity
Slag dryer also named slag drying machine. Slag dryer is developed from rotary drum dryer, which has been the ideal drying machine for the big moisture and high density materials such as slag, limestone, clay, sand, etc.
Coal Drying Structure:
Although anthracite is suitable for long-distance transportation, if the water content is high, it will increase transportation costs. By reducing the anthracite moisture through drying technology, the calorific value and energy density can be greatly increased, and transportation costs can be reduced.
This process adopts rotary drum dryer. Anthracite coal is fed into a drum filled with high-temperature hot air through the conveying equipment. In the drum that rotates obliquely, the raw coal forms a material curtain in the drying cylinder by the lifting plate on the drum wall. The hot air and the raw coal are fully exchanged for heat, so that the raw coal is dried.
Working Principle of coal dryer:
Slag is relatively sticky. During the drying process, the wet slag will be transported into the feed hopper by belt conveyor. Feed hopper is directly connected to the drying cylinder, and the wet slag will goes into the drying drum by the feed hopper, begin to contact with the hot gas stream inside the drying drum, thereby starting the whole slag drying process.
1.The wet slag contact with the hot air inside the drying drum, and the high temperature hot air heat the wet slag, and the moisture is evaporated;
2. There are many lifting boards which are welded on the inner wall of the rotating drying drum, and it not onel make the slag move forward, but also makes the wet slag up and down, during this process, the wet slag contact with the hot air sufficiently, and enhance the drying speed of slag;
3. There are special cleaning device inside the drying drum. During the drying process, it gets rid of the caking and adhesive material on the inner wall of the drying drum, thus prevent clogging.