The process flow of compound (NPK) fertilizer production linecan usually be divided into: raw material ingredients, raw material mixing, raw material granulation, particle drying, particle cooling, particle grading, finished product coating, and final finished product packaging.

Performance characteristics

Less investment, quick results, good economic benefits. Complete equipment flow layout is compact, scientific and reasonable, advanced technology. Energy saving, no waste discharge, stable operation, reliable operation and easy maintenance. Wide adaptability of raw materials, suitable for compound fertilizer, medicine, chemical, feed and other raw materials granulation, product granulation rate is high. Can produce a variety of concentrations, a variety of types (including organic fertilizer, inorganic fertilizer, biological fertilizer, magnetic fertilizer, etc.) compound fertilizer. Process flow

1. Raw material ingredients:

Urea, ammonium nitrate, ammonium chloride, ammonium sulfide, ammonium phosphate (mono-ammonium phosphate, diammonium phosphate, heavy calcium, calcium), potassium chloride (potassium sulfate) and other raw materials are equipped in a certain proportion (according to market demand and local soil test results).

2.Raw material mixing: the good raw materials will be mixed evenly to improve the overall uniform fertilizer efficiency content of fertilizer particles.

3.Raw material granulation: the mixed raw materials into the granulator granulation machine (can be used drum granulator, can also choose extruded granulator).

4.Particle drying: the granulator made good particles into the dryer, the particles contained in the moisture drying, increase the strength of the particles, easy to save.

5.Particle cooling: the temperature of fertilizer particles after drying is too high, easy to caking, after cooling, easy to bag preservation, and transportation.

6.Particle grading: the cooled particles are graded, the unqualified particles are crushed and re-granulated, and the qualified products are screened out.

7. Finished film: The qualified product is coated to increase the brightness and roundness of the particles.

8. Finished product packaging: The coated particles, that is, the finished products, are bagged and stored in a ventilated place.

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