Industry Info

Process characteristics of drum granulator in NPK fertilizer production line

 Granulation principle of rotary drum fertilizer granulation process
The material enters the front end of the rotating cylinder through the feeding pipe (the inclination of the feeding pipe should be greater than the natural inclination of the material). The steam inlet pipe at the front end of the cylinder ejects water vapor with a certain pressure. The nozzle of the steam inlet pipe is located at the bottom of the material. And the steam has a certain pressure. Therefore, the material can obtain some water more evenly and form smaller particles. Because the cylinder has a certain slope. Under the action of gravity and lining friction, these small particles continuously move in the circumference and axis direction of the cylinder. In the movement, the small particles gradually form a certain size of particles.

Drum fertilizer granulation process mainly includes the following equipment: crusher, mixer, belt conveyor, drum granulator, dryer, cooler, screening machine, silo, packaging machine.

Characteristics of rotary drum fertilizer granulation process

1. The price of fertilizer pellet machine is low, good economic benefit and reliable performance

2. Small power, no waste discharge, stable operation, convenient maintenance, reasonable process layout, advanced technology and low production cost;

3. High ball forming strength, good appearance quality, corrosion resistance, wear resistance and low energy consumption;

4. The cylinder body adopts special rubber plate lining or acid resistant stainless steel lining plate, which realizes automatic scarring and tumor removal, and cancels the traditional scraper device;