Drying problem
Thread Content
I would like to ask how rotary flash drying equipment addresses the moisture issue in products? For example, in our current operations we have found that if the particles of the wet material are very fine, it is difficult to achieve the required moisture level in the product, and the production capacity also decreases significantly.
The area of the air heater can be increased to raise the intake air temperature.
There are many factors that affect the moisture content and yield of the final product. When the particle size of the material is relatively fine, it is necessary to adjust the wind speed inside the tower and change the residence time. If the yield does not increase, the wind temperature can be raised as long as the material can tolerate such temperatures; of course, there are other adjustment methods as well.
If energy consumption is not a concern, the inlet temperature can be increased; however, reducing the gas velocity also reduces the volume flow rate, which in turn means less heat is supplied. Additionally, a lower gas velocity results in a lower gas-solid relative velocity, and although this increases the residence time, it reduces the drying intensity. Therefore, it is recommended to first reduce the diameter of the classifier; this will also increase the residence time without reducing the gas flow rate. Changing the classifier will increase the system resistance, and the extent to which the diameter should be reduced needs to be determined by calculating the remaining head available from the fan.
I’ve added it to my collection; thank you so much! :handshake