If the temperature of the drum decreases during the operation of the raw coal dryer, the drying effect of the material will be affected, and the drying time of the material will also increase the operating cost. If you want to solve the problem of temperature drop in the drum, you must find the cause and deal with it accordingly. Xiaobian introduced to everyone is the cause of the temperature drop in the drum of the raw coal dryer.

Insufficient draft fan air volume: The draft fan failed to completely induce the hot air flow in the hot blast stove to cause the hot air temperature to drop. Reduced or low-quality coal supply: When the quality of coal in the hot blast stove is too low or the amount of coal burned decreases, the temperature of the hot air inside the drum will be directly reduced. Blockage of the heat exchanger: After a long period of use, the hot blast stove will cause the tubes of the heat exchanger to be blocked and the tubes can be cleaned. Draw fan failure: The induced draft fan causes wear to the impeller over a long period of use, affecting the amount of air flow. In this case, the draft fan impeller should be replaced. Lax sealing: There is a phenomenon of air leakage at the connection part of the hot blast stove and the drum or other parts, which causes the temperature of the hot air in the drum to drop.