Large Capacity NPK Fertilizer Production Line, Compound Fertilizer Rotary Drum Granulator
12-15t/h Drum Granulator NPK Fertilizer Production Line
Introduction to Compound Fertilizer Production
Compound fertilizer provides comprehensive nutrients for crops. The production process combines essential crop nutrients (such as N, P, K and trace elements) through chemical methods. This involves gathering nitrogen fertilizer, phosphate fertilizer, potassium fertilizer, and other chemical agents to create granules suitable for farming, which are then applied to soil for optimal crop nutrient absorption.
Raw Materials for Compound Fertilizer Production
Compound fertilizer contains two or more of the three basic plant nutrients (nitrogen, phosphorus, potassium) along with trace elements such as boron, manganese, copper, zinc, and molybdenum. Raw materials can be powdered or lumpy and include:
| Nitrogen |
Phosphorus |
Potassium |
| Calcium Nitrate |
Single superphosphate |
Potassium chloride |
| Urea |
Phosphate rock |
Potassium sulfate |
| Ammonium bicarbonate |
Calcium Hydrogen Phosphate |
Potassium Nitrate |
| Ammonium chloride |
Triple superphosphate |
|
| Ammonium nitrate sulfate |
|
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| Ammonium sulfate |
|
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| Ammonium Nitrate |
|
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Compound Fertilizer Production Line Flow Chart
The compound fertilizer production line typically includes 9 processes: batching, grinding, mixing, granulation, drying, cooling, screening, coating, and packaging. Batching, mixing, granulation, drying, and screening are required processes, while others can be selected based on different production outputs.
Main Equipment of Compound Fertilizer Production Line
| No. |
Process |
Machine |
Functions of the Machine |
| 1 |
Batching process |
Automatic batching machine |
Raw materials according to formula ratio |
| 2 |
Grinding process |
Grinder |
Grinding the particles into powder |
| 3 |
Mixing process |
Mixer |
Mix the powder evenly and add water or other trace elements if necessary |
| 4 |
Granulation process |
Feeder |
Feed the mixed powder evenly into the granulator |
| 4 |
Granulation process |
Granulator |
Make the mixed powder into fertilizer granules |
| 5 |
Drying process |
Dryer |
Fertilizer granules are dried to low moisture content by hot air |
| 5 |
Drying process |
Hot furnace |
Generates hot air to dryer |
| 5 |
Drying process |
Cyclone |
Collecting dust from dryers |
| 6 |
Cooling process |
Cooler |
Cooling fertilizer granules to room temperature |
| 6 |
Cooling process |
Cyclone |
Collect dust in the cooler |
| 7 |
Screening process |
Filter |
Screening of fertilizer granules to the desired size |
| 8 |
Coating process |
Coating Machine |
Coating color on fertilizer particles, anti-caking agent, trace elements, etc. |
| 9 |
Packaging process |
Air compressor |
Powering packaging machines |
| 9 |
Packaging process |
Packing Machine |
Pack fertilizer granules into bags |
Characteristics of Compound Fertilizer Production Line
• Requires minimal investment with quick results and excellent economic benefits
• Compact and scientifically advanced equipment process
• Energy-saving and environmentally friendly with no waste discharge
• Stable operation, reliable performance, and easy maintenance
• Wide adaptability to various raw materials
• Suitable for granulation in compound fertilizer, medicine, chemical industry, feed and other industries
• High granulation rate
• Capable of producing compound fertilizers of different concentrations and types (including organic fertilizers, inorganic fertilizers, biological fertilizers, magnetic fertilizers, etc.)