What are the common faults of dryer and their treatment methods?

Because the loading capacity of the dryer is related to the bulk density of materials (referring to the mass of materials in unit volume), in general, the specific gravity of materials is calculated as 0.6g/cm3 when designing the dryer. If it exceeds this proportion, on the one hand, it will affect the drying efficiency of materials;

On the other hand, long-term operation will reduce the service life of motors, turbine reducers, sprockets, chains and bearings. In general, the filling rate of the double-cone rotary vacuum dryer (the ratio of the actual filling volume to the drying cylinder volume) is usually between 30% and 50%, and the vacuum cover in the double-cone rotary vacuum dryer cannot be covered, otherwise the drying speed will be affected. In the drying process of double-cone rotary vacuum dryer, the vacuum degree is often too low or too high, which will not only affect the drying efficiency and quality of materials, but also affect the production safety of the workshop.

Although the higher the vacuum degree is, the better it is for water to evaporate at low temperature, but the higher the vacuum degree is, it is not conducive to heat conduction and affects the drying effect of materials.

There may be four reasons for the low or high vacuum: the mechanical seal at the vacuum end leaks; The vacuum pipeline leaks or is blocked, and the filter is blocked;

Because the temperature of hot water or steam is too low, the material solvent is difficult to evaporate. To solve this problem, it is necessary to consider the temperature of hot water and steam in the dryer, check it regularly during use, and maintain and clean it at the same time.