The process flow of the compound fertilizer production line includes: raw material ingredients, raw material mixing, raw material granulation, particle drying, granular cooling, particle grading, finished packaging film and final product packaging.
Compound fertilizer contains two or all three of the basic plant nutrients—Nitrogen, Phosphorus, and Potassium—as well as microelements such as B, Mn, Cu, Zn, and Mo. Raw materials can be powder or bulk, including:
| Nitrogen | Phosphorus | Potassium |
|---|---|---|
| Calcium nitrate | Single superphosphate | Kainit |
| Ammonium bicarbonate | Rock phosphate | Potassium chloride |
| Nitrate of soda | Dicalcium phosphate | Potassium sulphate |
| Ammonium sulphate | Triple superphosphate | Potassium nitrate |
| Urea | ||
| Ammonium chloride | ||
| Ammonium sulphate nitrate | ||
| Ammonium nitrate |
| No. | Processes | Machines | Function of Machines |
|---|---|---|---|
| 1 | Batching process | Automatic batching machine | Ratio raw materials by formula |
| 2 | Grinding process | Grinder | Grind granules to powder |
| 3 | Mixing process | Mixer | Mix powder evenly, add water or micro-elements if necessary |
| 4 | Granulating process | Feeding machine | Feed mixed powder into granulator evenly |
| Granulator | Make mixed powder into fertilizer granules | ||
| 5 | Screening process | Screener | Screen out required size from fertilizer granules |
| 6 | Coating process | Coating machine | Coat color, anti-blocking agent, microelements on fertilizer granules |
| 7 | Packaging process | Air compressor | Generate power to packaging machine |
| Packaging machine | Package fertilizer granules into bags |
Energy saving and consumption reducing, no waste removal, stable operation, reliable running, convenient maintenance. The machine features wide raw material adaptability and is suitable for granulation of compound fertilizer, medicine, chemical industry, feed, etc., with high granulation rate. Capable of producing various compound fertilizers with different concentrations and types including organic fertilizer, inorganic fertilizer, biological fertilizer, and magnetic fertilizer.