NPK compound fertilizer granulation-rotary drum granulator


There are many different types of compound fertilizer granulating equipment, such as pan granulator, tooth-drum granulator, double roller press granulator, rotary drum granulator, etc. Many users do not know their own production when buying What kind of granulator equipment should be used for fertilizer? Then we will introduce to you one of the equipment for granulation of compound fertilizers-rotary drum granulator.

Application of drum granulator machine

Drum granulator is a kind of granulator commonly used in the production of NPK compound fertilizer, biological fertilizer, controlled-release fertilizer and other fertilizers. It is suitable for the large-scale production of cold, hot granulation and high, medium and low concentration NPK fertilizer production line. Rotary drum granulator adopts special rubber plate lining or acid resistant stainless steel lining plate, which has the characteristics of high ball forming strength, good appearance quality, corrosion resistance, wear resistance, low energy consumption, long service life, convenient operation and maintenance, etc.

Working principle of rotary drum granulator

The main working mode of the drum granulator is wet granulation of pellets. Through a certain amount of water or steam, the crushed materials can be fully chemically reacted after being humidified in the cylinder. Under a certain liquid-phase condition, with the help of the rotating motion of the cylinder, the extrusion pressure between the particles of the materials can be generated to agglomerate into a ball. Steam, gas ammonia or phosphoric acid or nitrogen solution, phosphoric ammonia slurry and heavy calcium slurry are introduced into the drum granulator to complete the chemical reaction and heating compound fertilizer granulation process in the drum, or the cold granulation process of compound fertilizer supplemented with a small amount of water. The materials to be granulated are rotated by the cylinder. Finally, the fertilizer is agglomerated into balls under certain humidity and temperature, and the pelletizing process of NPK fertilizer production line is completed.

As a professional fertilizer production equipment manufacturer, we put the maximum benefit of users in the first place, become a good helper for users to get rich, and consider for users. Over the years, we have been summing up our experience and improving our equipment, and now we have both affordable and high-quality equipment.