Timing of anti-caking agent addition: A critical control point in the production process.

2025-05-13

Summary:

The timing of anti-caking agent addition directly affects its effectiveness and is a critical control point that must be strictly managed in the production process. The optimal addition point is typically after the fertilizer granules have been thoroughly cooled and just before they enter the packaging stage. At this point, the fertilizer temperature has dropped to near room temperature (usually below). 50 ° C ), the granules exhibit stable strength. If added too early, when the fertilizer granules are at an excessively high temperature, the liquid anti-caking agent may either penetrate excessively or evaporate prematurely, while the powdered anti-caking agent may become embedded in the granules due to their overly soft surface—neither scenario allowing for the formation of an effective surface isolation layer. Adding the anti-caking agent at the outlet of the cooling cylinder or inside the coating drum ensures that it adheres uniformly to the firm and cool granule surfaces, achieving the optimal anti-caking effect.

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Powdered vs. Liquid Anti-Caking Agents: A Selection Strategy for Production

Humidity and Temperature: The Two Environmental Culprits Behind Fertilizer Caking

Powdered vs. Liquid Anti-Caking Agents: A Selection Strategy for Production