10 T/H NPK Fertilizer Rotary Drum Granulation Line for Plant

Operating a commercial NPK fertilizer manufacturing plant at a continuous output of 10 tons per hour demands heavy-duty industrial machinery capable of maintaining precise nutrient ratios, high granule roundness, and minimal downtime. The 10 T/H NPK Fertilizer Rotary Drum Granulation Line for Plant is a complete, turnkey wet granulation engineering solution designed specifically for medium-to-large fertilizer factories processing compound nitrogen, phosphorus, and potassium formulations (such as urea, ammonium sulfate, DAP, MAP, and potassium chloride).

Utilizing steam-assisted or liquid-injected wet agglomeration inside an inclined rotary drum, fine raw powders tumble continuously and build up into dense, smooth spherical granules under surface tension and rolling forces. The integrated production line features fully automated dynamic batching, continuous drum agglomeration, high-efficiency rotary drying and cooling, multi-stage rotary screening, anti-caking oil coating, and an automated bagging system. As a dedicated factory supplier, Gofine Machine builds each 10 T/H line with heavy-duty cast steel riding rings, thick corrosion-resistant steel shells, and rubber or stainless steel anti-stick inner liners, ensuring granulating efficiency exceeding 90% and continuous 24/7 industrial performance.

To ensure operational stability and long-term reliability, the Gofine rotary drum granulator incorporates several precision-engineered features:

• Corrosion-Resistant Interior: The internal drum is lined with specialized UHMW-PE (Ultra-High Molecular Weight Polyethylene) or acid-resistant stainless steel plates. This minimizes material sticking and protects the shell from the corrosive nature of ammoniated compounds.
• Enhanced Granulation Rate: Through the optimization of drum inclination (typically 2.0% to 5.0%) and rotational speed, the system achieves a granulation rate exceeding 90%, with fewer fines requiring recycling.
• Steam Injection Technology: Integrated steam piping allows for the adjustment of material temperature and moisture levels, ensuring optimal plasticity for granule formation without relying on excessive liquid binders.
• Heavy-Duty Transmission: Featuring a large cast steel gear and a high-performance motor-reducer assembly, the unit maintains stable torque even under full-load conditions (capacities ranging from 1 t/h to 20 t/h).

This granulation system is highly versatile and suitable for:

• High-Concentration Compound Fertilizer: Producing formulas like 15-15-15 or 20-20-10.
• Ammoniation Granulation Processes: Integrating liquid ammonia, phosphoric acid, or sulfuric acid.
• Organic-Inorganic Mixtures: Processing bio-organic materials that require a specific moisture-heat balance for pelletizing.

The production sequence in the drum is a coordinated mechanical and chemical process:

• Material Feeding: Base powders (such as Urea, MAP, or Potassium Chloride) are fed into the rotating drum at a constant rate.
• Ammonia/Steam Injection: Under the rolling bed of material, gaseous ammonia steam are injected. The resulting chemical heat and moisture soften the particles.
• Rolling & Agglomeration: As the drum rotates, the softened materials collide and adhere to each other, forming spherical "seeds" that grow into full-sized granules through centrifugal force.
• Discharge: The finished granules exit the drum and are conveyed to drying and cooling units to finalize their structural hardness.

As a specialized manufacturer, we focus on equipment longevity and process efficiency. Our designs prioritize minimized maintenance intervals and stable operational performance. We provide comprehensive layout designs and technical support to ensure the equipment integrates seamlessly into your existing production plant.