Advantages of compound fertilizer granulation equipment of rotary drum granulator
Drum granulator is one of the key equipment in compound fertilizer industry, which is suitable for cold and hot granulation and large-scale production of high, medium and low concentration compound fertilizer. The main working mode is wet granulation. Through a certain amount of water or steam, the basic fertilizer can be fully chemically reacted after being humidified in the cylinder. Under a certain liquid phase condition, with the help of the rotary movement of the cylinder, the extrusion force between the material particles can be produced to agglomerate into pellets.
The rotary drum granulator, in which steam, gas ammonia or phosphoric acid or nitrogen solution, phosphorus ammonia slurry and heavy calcium slurry are added, completes the granulation process of chemical reaction and heat supply in the cylinder, or cold granulation process of compound fertilizer with a small amount of water added. The materials to be granulated are rolled and rotated through the rotary movement of the cylinder, and agglomerated under a certain humidity and temperature The ball forming process is completed.
Features of drum granulator:
1. The pelletizing rate of npk fertilizer granulator is up to 70%, there is a small amount of returned material, and the particle size of the returned material is small, so it can be granulated again;
2. Steam heating is introduced to increase the temperature of the material, so that the moisture content of the material after pelletizing is low, and the drying efficiency is improved;
3. Using rubber engineering plastics as lining, the raw materials are not easy to stick to the cylinder, and play the role of anti-corrosion and heat preservation;
4. Large output, low power consumption and low maintenance cost.
