How high-tower granulation increases the shrinkage cavity in fertilizer particles
Thread Content
Shrinkage cavities on the finished pellets are a characteristic of high-tower fertilizer; sometimes these cavities are not very noticeable. Let’s discuss ways to increase the porosity rate.
This is related to the temperature of the mixture; higher temperatures result in more pores. Give it a try
Increase the temperature, and more holes will form. However, the particles may be relatively flatter.
Holes will form at higher temperatures, and fragments will appear if the temperature is too high
Add a small amount of ammonium bicarbonate during granulation
Yes, temperature control is crucial in production. Can we add ammonium bicarbonate?
Do not set overly high requirements for the shrinkage rate of the particles; the presence of pores is a phenomenon associated with tower-type products, occurring as the molten material cools rapidly as it descends within the tower. It is possible to increase the temperature of the tank slightly; however, too high a temperature can lead to the formation of fragmented particles, which affects the yield and quality of the final product. Pores are more likely to appear when the ambient temperature is low, while they are less common in summer.