Production Line Flow of Disc Granulation
Disc granulation production lines are a commonly used molding process in the production of organic fertilizers and compound fertilizers. The entire process is continuous and smooth, mainly divided into raw material pretreatment, mixing, granulation, screening, drying and cooling, and finished product packaging.
First, the fermented and decomposed organic fertilizer or nitrogen, phosphorus, and potassium raw materials are fed into a pulverizer for crushing, breaking down lumpy materials into fine powder to ensure uniform raw material fineness, laying a good foundation for subsequent granulation. The crushed raw materials are then fed into a multi-bin batching machine according to the formula ratio, precisely proportioning various nutrient raw materials to ensure the fertilizer nutrient content meets standards.
The batched raw materials are conveyed to a horizontal mixer for thorough mixing, allowing the various raw materials to be evenly blended. Then, water or binder is added as needed based on the material’s moisture content to adjust to a suitable level for granulation. The evenly mixed material is conveyed to a disc granulator. The disc rotates at an incline, causing the material to continuously roll and agglomerate within the disc, gradually forming uniformly sized granules, completing the core granulation process.
Freshly formed wet granules are conveyed to a drum screen to separate qualified granules from unqualified ones. Unqualified fragments are returned to the mixer or granulator for secondary processing. Qualified granules then enter a dryer and cooler to remove excess moisture and lower the temperature, improving granule strength and storage stability.
Finally, the cooled granules can be coated to prevent clumping, and then further screened by a finished product screen. Qualified finished products are directly packaged by an automatic packaging machine, completing the entire production process of the disc granulation production line.
