1. Determination of drying room
The degree of evaporation of some materials processed by the dryer, the volumetric heating method is the theoretical design method of the dryer, but the key volumetric heating coefficient in this method is difficult to determine, so it lacks operability. Evaporation method is an indirect method of volumetric heating method. It can be calculated as long as the experimental data is available. It is a method commonly used in industrial design. The evaporation degree method calculates the volume of the drying chamber based on the amount of evaporated water and the evaporation degree, and then calculates yxgd based on the relationship between the diameter and gd.
Second, the diameter of the drying room
Another method is to calculate the required air consumption through material balance and heat balance, and then determine the diameter of the dryer according to the air speed range.
3. The gd and j size of the dryer
The hot air from the hot air distributor enters into the drying room through the annular gap in a tangential direction, and the materials in the drying room are driven by the hot air blowing and driven by the agitator to spirally move upward. When studying the fluid movement of small particles under the action of centrifugal force field, the effect of force is very small, so it can be ignored.
4. Application of dryer
Part of the operating conditions of the dryer, the upper part of the drying room is equipped with a j ring, its role is to separate the larger particles or non-dried materials from the qualified product, and block the drying room to meet the product size and moisture requirements. g for different diameters can be divided into j rings to meet the requirements of mz product size. Cold wind protection is provided at the hot air population at the bottom of the cone, and fz materials come into contact with high-temperature air to cause overheating and deterioration. The drying system is closed, and it operates under slight negative pressure, and the dust does not leak out, protecting the production environment and sanitation.