Spray Dryer granulator for granulation

    Our company and Nanjing Chemical Industry (Group) Company Institue resarched and developed the specical equipment for sulfenyl NPK compound fertilizer basing on phosphor ammonium project spray granulator. The machine is the new type, high efficiency and energy savings granulating drying equipment which combined many processes an whole such as granulating, drying inside and sieving inside and returning inside etc.

    There are granulating zone, drying zone, grading-recycling device in the srag.

    The setting up of lift built-uflights, whose ends are sqwteeth in shape from granulating to drying zone, makes finely-granular material form a well-distributed curtain. The slurry is sprayed into the barrel of granulator, adhered with fine granular of the curtain by means of pneumatic nozzle, dehumidified by means of hot flue gas to obtain granular product. Finally the granular p roduct is screened inside or outside the granulator by external recycling system, the unqulified large particles are returned to the head of the cylinder after crushing by external recycling system, and the fine is recycled into the forepart by internal recycling device at the tail of the granulator, granulated and dried again.