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Extrusion Granulator Machine , Granules Fertilizer 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.
According to the many years of production experience, the DZJ series roll press granulator is a new type of equipment developed on the basis of the original double roll extrusion granulation.
Working Process Of NPK Compound Fertilizer Making Production Line
It extrusion shear mode designs, through a two-roll feed, to the distribution chamber, as out granulation, sieving machines installed at the bottom, customized according to customer requirements, and finally sieved granules qualified, the remaining material being again returned mixer Granulation.
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.
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 |
Granules Strength and Appearance In NPK Compound Fertilizer Making Production Line
Unit crushed strength : 10-25N
Shape of finished products : oval, irregular, wheat shaped, etc., can also be customized according to customer requirements.
Material moisture requirement : not more than 10%
The rate of ball formation : 95%
Output : 1-4t/h ( can combine multiple granulators work together to increase output, see below
technical process chart).
Granule size : 3-8mm (popular market granule diameter: 2.8-4mm)
Features of NPK Fertilizer Production Line
1. roller material : Stainless steel wear-resisting material
2. maintenance convenience
3. into ball in a one process,into ball rate more than 85-95%
4. raw materials' moisture : 5%-10%
5. Double shaft power output, each shaft through coupling to drive its roller to do synchronous work in opposite direction, granule forming is better and the strength is higher.
6. The design of contraposition adjustment of ball socket is simple and convenient for the client to adjust by themselves. Provide the drawing of roller adjustment and operation steps.
7. All machines before leave the factory, had carried out the test and trial production by professional workers.
