Incomplete Cooling: The Hidden Killer of NPK Granule Shelf Life
For every 5°C increase in the discharge temperature of a rotary cooler above the standard value, the agglomeration rate of NPK granules increases by 8%-12% during storage. By employing a two-stage counter-current cooling system, with a cylinder rotation speed of 3-4 r/min and a residence time of 8-10 minutes, the core temperature of the granules can be reduced to ≤35°C, controlling the agglomeration rate below 2% after 60 days of storage, extending shelf life by more than three times compared to single-stage cooling solutions.
Click to Visit Site 🎲 Surprise Me!