has the advantages of compact layout, scientific and reasonable, and  advanced technology. Energy saving and consumption reduction, no three  wastes discharge, stable operation, reliable operation and convenient  maintenance. 
 
NPK and potassium chloride two-in-one fertilizer production line
1. Batching system: The raw materials are allocated in a certain  proportion (according to market demand and the results of soil testing  in various places).
2. Mixer: Stir the prepared raw materials evenly to increase the uniform  fertilizer efficiency content of the overall fertilizer particles.
3. Granulator: Feed the evenly stirred raw materials into the rotary  drum granulator and the double roller press granulator for granulation.
4. Drum dryer: The granules made by the granulator are sent to the dryer  to dry the moisture contained in the granules to increase the strength  of the granules and facilitate storage.
5. Drum cooler: The temperature of dried fertilizer granules is too high  and easy to agglomerate. After cooling, it is convenient for bagging  storage and transportation.
6. Roller screening machine: The 
fertilizer production machine  classifies the cooled particles, and the unqualified particles are  crushed and re-granulated to screen out the qualified products.
7. Coating machine: Coating qualified products to increase the brightness and roundness of the particles.
8. Packing machine: Pack the film-coated particles, that is, the finished product, and store them in a ventilated place.