What is a Rotary Drum Granulation Production Line?

What is a Rotary Drum Granulation Production Line?

Rotary Drum Granulation Production Line Key Components & Working Principle

1. Raw Material Batching System
   • Accurately weighs and mixes powdery raw materials (e.g., urea, ammonium phosphate, potassium chloride for compound fertilizers) according to predefined formulas.
2. Mixing & Humidifying System
   • Uniformly blends dry materials and adds binders (e.g., water, ammonia solution) to adjust moisture content, enabling powder agglomeration.
3. Rotary Drum Granulator (Core Equipment)
   • The inclined drum rotates continuously; as powdery materials move inside, they collide, roll, and adhere to form granules under mechanical force and binder action.
4. Drying System
   • Uses hot air (via rotary dryers) to reduce the moisture content of wet granules to meet product quality standards.
5. Cooling System
   • Cools high-temperature dried granules to room temperature (e.g., via cooling drums) for subsequent processing.
6. Screening & Classification System
   • Separates unqualified granules (too small/large) with vibrating screens; unqualified products are recycled back to the granulator for reprocessing.
7. Packaging System
   • Automatically weighs and packages qualified granules (e.g., 25kg/bag, 50kg/bag) for storage and transportation.
8. Environmental Protection System
   • Treats production dust (e.g., with bag filters) to comply with environmental emission regulations.

Rotary Drum Granulation Production Line Main Application Fields

• Chemical Fertilizer Industry (Primary Use): Production of compound fertilizer, organic-inorganic compound fertilizer, slow-release fertilizer, and bulk blending fertilizer (BB fertilizer).
• Chemical Industry: Granulation of powdery chemicals (e.g., ammonium sulfate, sodium carbonate).
• Building Materials Industry: Granulation of cement additives, refractory materials, and ceramic raw materials.
• Agriculture & Animal Husbandry: Granulation of organic fertilizer and feed additives.

Rotary Drum Granulation Production Line Technical Advantages

• Continuous Production: High automation and capacity, suitable for large-scale industrial operations.
• Uniform Granule Quality: Granules have high sphericity, good fluidity, and stable nutrient content (critical for fertilizers).
• Strong Adaptability: Compatible with various raw materials and formulas, allowing flexible adjustment of product specifications.
• Mature & Reliable: Stable operation, low maintenance costs, and widespread industrial adoption.

Suppliers of Rotary Drum Granulation Production Line：