Fertilizer granulator is the key equipment in the fertilizer production line, its main role is to process powdered or liquid fertilizer raw materials into pellets by physical methods, so as to facilitate application and improve the utilization rate of fertilizer. The following is the working principle and process of fertilizer granulator:

1. Raw material mixing: First of all, various fertilizer raw materials such as nitrogen fertilizer (Urea), Ammonium Dihydrogen Phosphate, Potassium Chloride, etc., need to be fully mixed before entering the granulator to ensure the nutritional balance of the final product. This step is usually done using a Horizontal Ribbon Mixer or a Double Shafts Paddles Mixer to achieve an even mix of ingredients.

2. Compression molding: The evenly mixed Fertilizer raw materials are fed into the fertilizer granulator, such as the Fertilizer Granules Compaction Machine or Flat-Die Pellet Machine. Inside the granulator, the raw material is formed into particles by extrusion or pressing. In this process, an appropriate amount of water or binder may be added to improve the molding effect of the particles.

3. Particle molding: In the process of extrusion or pressing, fertilizer raw materials are compressed into particles. These particles are squeezed inside the granulator to form particles of a certain size and shape. The shape and size of the particles can be controlled by adjusting the parameters of the granulator to meet different application requirements.

4. Screening and grading: The formed particles are then screened through the fertilizer screening Machine (such as Rotary Screening Machine) to ensure that the size of the particles is uniform and meets the product quality requirements. Pellets that do not meet the specifications may be returned to the granulator for reprocessing.

5. Drying and cooling: The newly formed particles usually contain high moisture, and need to be dried by Rotary Dryer Machine to reduce the moisture content and improve the stability and storage of the particles. The dried particles are then cooled by Rotary Cooler Machine to ensure that the temperature of the particles is appropriate for subsequent packaging and storage.

6. Packaging and storage: The cooled granular fertilizer is fed quantitatively through Uniform Feeder, and then packaged. Packaged fertilizer pellets can then be stored or transported for use in agricultural production.

Through the above process, the fertilizer granulator converts various fertilizer raw materials into granular products that are easy to apply and manage, improving the nutritional value and use efficiency of the fertilizer. This equipment plays a vital role in the Organic Fertilizer Production Line and the NPK Fertilizer Production Line.