Special equipment for fertilizer granulation refers to machinery used specifically for the granulation process during fertilizer production. Granulation is an important process for converting raw materials into a more usable form that can be easily applied to crops. There are several types of special equipment for fertilizer granulation, including: 1.Disc granulator: This type of equipment uses a rotating disc to create the granules, with the raw materials added to the disc and then sprayed with a binder solution to help form the granules. 2.Rotary drum granulator: This type of equipment uses a rotating drum to create the granules, with the raw materials added to the drum and then sprayed with a binder solution to help form the granules. 3.Double roller granulator: This type of equipment uses two rollers to compress the raw materials into granules, with the addition of a binder solution to help form the granules. 4.Flat die extrusion granulator: This type of equipment uses a flat die to compress the raw materials into granules, with the addition of a binder solution to help form the granules. 5.Ring die extrusion granulator: This type of equipment uses a ring die to compress the raw materials into granules, with the addition of a binder solution to help form the granules. The choice of special equipment for fertilizer granulation depends on the specific needs of the fertilizer manufacturer, the type and amount of raw materials available, and the desired product specifications. Proper selection and use of special equipment for fertilizer granulation can help improve the efficiency and effectiveness of fertilizer production, leading to better crop yields and improved soil health.