The operation of disc granulation is intuitive, and the operation situation can be monitored at any time. If any abnormalities are found, appropriate measures can be taken in a timely manner. The tilt rate and speed of the disc can be adjusted, so the disc granulation process has a wide range of particle size control, strong adaptability, and high ball forming rate. The disc granulation process requires less investment and is easy to operate, making it suitable for small and medium-sized compound fertilizer factories.