How to Dry Fertilizer Granules?

What is the purpose of drying after granular fertilizer production line? Granular fertilizer drying, as a critical process, may efficiently remove moisture while also improving its quality and consistency.


Granular fertilizer is frequently utilized in modern agriculture production, which is normally dry and appears as the forms of pellets or solid granules. And after granulation, how to dry fertilizer granules becomes a hot topic. This page will briefly introduce the relevant content of particle fertilizer drying.

Finished Granular Fertilizer by Rotary Dryer

Why Should You Dry Fertilizer Pellets?

As you can see, fertilizer granulation production line includes fermentation, crushing, mixing, wet granulation, and drying processes. At this time, there are some fertilizer plants holding a question:

Seemingly, now that the granulation work is successful to make fertilizer particles, I wonder if I could skip the drying process.”

The answer is NO. Because granular fertilizer often includes high humidity throughout the manufacturing process and brings challenges to its quality and storage stability. Hence, this makes the drying process particularly important.

Above all, adding water is necessary while processing organic or inorganic materials to make powder into granular fertilizer. After the wet granulation, the moisture content of the granules is normally 50-55%. As a result, if you don’t use the drum dryer, the granules would create agglomeration owing to the high moisture, damaging product quality, transportation, and sales.

What Is The Procedure of Drying Fertilizer Particles?

What Are The Main Components of The Drum Drying Machine?

In the process of granular fertilizer commercialization, low intensity pellets is unfavorable for bagging and transportation. During these processes, the low strength cause the damage rate to raise. Therefore, in order to fulfill the commercialized demands, the fertilizer production line requires the drying machine after granulation.

Wet granular fertilizer is prone to agglomeration and degradation with the moisture content of 50-55%. However, removing moisture from granular fertilizer during the drying process can significantly increase its quality. Furthermore, this step makes pellets more homogeneous and stable, promoting nutrient release when applying fertilizer.

In high humidity situations, granular fertilizers absorb moisture, resulting in caking and quality loss. Drying effectively removes moisture from particles, making it more suitable for long-term storage, decrease quality loss and cut storage costs. Also, it can effectively extend the storage and transportation period of granules.

The drying equipment can remove water from granular fertilizer efficiently, decreasing the manufacturing cycle. When compared to natural drying, the drum drying machine may significantly reduce drying time, increase production efficiency, and save time as well as labor expenses.

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