The rotary drum granulation production line is characterized by its large single unit production capacity and closed design. At the same time, it can use steam to add water and increase the temperature during the granulation process, so that it can reduce the energy consumption of the subsequent dryer process, to a certain extent.

Generally, the process flow is: fertilizer raw materials batching–pretreatment & crushing–mixing–granulation–drying–cooling–screening & return–packaging–finished product.