NPK blended fertilizer is a compound fertilizer made by physically mixing nitrogen (N), phosphorus (P), potassium (K), and other base fertilizers. NPK blending fertilizer production line process offers features like flexible formulation, low investment, and strong adaptability, allowing it to meet the nutrient needs of different crops and soil types.
1.Raw Material Pre-treatment
Raw Material Selection: Base fertilizers like urea, monoammonium phosphate (MAP), potassium chloride (MOP), and potassium sulfate (SOP) must meet particle size standards (1-4mm) to ensure even mixing.
Crushing and Screening: Large particles need processing by a chain crusher and grading via a vibrating screen to prevent clumping, which affects mixing effectiveness.
2.Automatic Batching and Mixing
Computer-Controlled Weighing: A PLC automatic batching system precisely adjusts the N, P, K ratios with an error ≤1%.
Double Axis Paddle Mixing: A high-efficiency mixer achieves a uniformity ≥95% in just 3-5 minutes, preventing nutrient segregation.
3.Finished Product Handling
Anti-Caking Treatment: Coating oil or anti-caking agents are added to improve storage stability.
Automatic Packaging: Quantitative packing scales + sewing machines support different bag sizes (5-50kg) to meet diverse market demands.
Outstanding Features of NPK Blending Process:
1.Flexible Adaptation: Formulas can be quickly adjusted to produce specialized fertilizers with different NPK ratios (like 15-15-15, 20-10-10).
2.Low Investment, Quick Returns: Compared to chemically synthesized compound fertilizers, equipment investment is reduced by over 50%, making it suitable for small and medium-sized enterprises.
3.Energy Efficient and Eco-Friendly: No high-temperature chemical reactions mean lower energy consumption and no wastewater or exhaust gas emissions.
4.High Adaptability: Medium or trace elements (calcium, magnesium, sulfur) or organic matter can be added to meet the needs of specialty fertilizers.
With advantages like simple processing, flexible formulation, and controllable costs, NPK blending fertilizer production lines have become a key choice in the compound fertilizer market.