Potassium fertilizer is prone to absorbing moisture and clumping. Drying is crucial to ensuring its quality and shelf life. Drum fertilizer dryers are commonly used for drying potassium fertilizer. The drying process revolves around "temperature control, uniform speed, and loss prevention," with clear steps as follows:

First, pretreatment is performed, screening to remove impurities and break up clumps, ensuring uniform particle size and preventing equipment blockage. Then, the drum fertilizer dryer is started, and the heating system is preheated, with the temperature adjusted to 80-100℃ to suit the characteristics of potassium fertilizer and prevent nutrient loss due to high temperatures.

After preheating, the pretreated potassium fertilizer is fed into the drum at a uniform speed. The drum rotates at a constant speed, and the inner wall lifting plates turn the material, increasing the contact area with the hot airflow and achieving uniform dehydration. During drying, the temperature, rotation speed, and feed rate need to be continuously adjusted to ensure gradual evaporation of moisture.

Once the potassium fertilizer reaches the required moisture content, it is discharged through the discharge system and enters the cooling stage to prevent residual heat from causing moisture absorption. Finally, the dried potassium fertilizer is screened to remove substandard materials and re-dried. The qualified finished product is then ready for subsequent storage or processing.

The core of the entire process of a drum fertilizer dryer is precise temperature control and uniform speed operation, which ensures that the potassium fertilizer is fully dried, prevents clumping, avoids nutrient loss, and guarantees stable product quality.