NPK Compound Fertilizer Rotary Drum Pelletizing Line 5 T/H

The NPK Compound Fertilizer Rotary Drum Pelletizing Line 5 T/H is a compact, high-efficiency wet agglomeration plant designed specifically for medium-scale fertilizer producers processing chemical formulations like urea, ammonium sulfate, DAP, MAP, and potassium chloride.

Utilizing steam or fine water mist injected into the inclined rotating drum, the fine chemical powders naturally bind together under liquid surface tension. As the cylinder rotates, the wet powders tumble continuously, rolling into hard, smooth, and highly dense spherical pellets. The complete 5 T/H system seamlessly integrates dynamic loss-in-weight batching feeders, a cage mill crusher, the core rotary drum pelletizer, rotary thermal drying and air-cooling drums, a multi-deck vibrating sieve, an anti-caking coating unit, and an automated bagging scale. Manufactured by Gofine Machine with wear-resistant anti-stick rubber drum linings, heavy-duty drive gears, and central PLC automation, this line delivers continuous 24/7 reliability and granulating yields above 90%.

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.