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3-4T/H Double Roller Extrusion NPK Compound Fertilizer Making Production Line
Introduction of NPK Fertilizer Production Line
NPK Compound fertilizer production line is widely applied to
produce compound fertilizer and the capacity ranges from
5000-200,000 tons/year. It can granulate NPK, NP, ANP, DAP, MAP,
CAN, SSP and other materials into compound fertilizer particles in
one processing line. This equipment is specially used for
manufacturing compound fertilizers with different concentrations
and types, such as organic fertilizers, inorganic fertilizers,
biological fertilizers and magnetic fertilizers, etc. It is mainly
used for producing oval particles with a diameter ranging from 2mm
to 6mm.
Raw Material For NPK Compound Fertilizer Making Production Line
Compound fertilizer is the fertilizer containing two or all three of the three basic plant nutrients—Nitrogen, Phosphorus, and Potassium, as well as microelements, such as B, Mn, Cu, Zn, and Mo. The raw material can be powder or bulk, mostly are as below:
| Nitrogen | Phosphorus | Potassium | |
| Calcium nitrate | urea | Single superphosphate | Kainit |
| Ammonium bicarbonate | Ammonium chloride | Rock phosphate | Potassium chloride |
| Nitrate of soda | Ammonium sulphate nitrate | Dicalcium phosphate | Potassium sulphate |
| Ammonium sulphate | Ammonium nitrate | Triple superphosphate | Potassium nitrate |
Process Of NPK Compound Fertilizer Making Production Line
NPK Compound fertilizer production line usually includes 7 processes, batching, grinding, mixing, granulating, screening, coating and packaging. Batching, mixing, granulating and screening processes are necessary. Other processes are optional based on different capacity.
Main Equipments Of NPK Compound Fertilizer Making Production Line
| 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, If necessary, add water, or other micro-elements |
| 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 etc on fertilizer granules |
| 7 | Packaging process | Air compressor | Generate power to packaging machine |
| Packaging machine | Package fertilizer granules into bags |
Features of NPK Fertilizer Production Line
1. NPK fertilizer production line can production NPK fertilizer,
DAP and other materials into compound fertilizer particles.
2. NPK fertilizer production line mainly used for producing
spherical particles with a diameter ranging from 1-3mm.
3. Raw material widely,the production formula easy to operate,used
to produce high,mediumand,low grade of NPK fertilizer.
4. NPK fertilizer production technology is mature,equipments
running stable and high effciency.
