Granulation equipment is the core part of fertilizer production lines, which endows fertilizers with appropriate particle shapes and has a significant impact on the performance, storage, and transportation of fertilizers.
Disc granulator is one of the common granulation equipment. During work, the disc continuously rotates, and the material gradually aggregates and grows into particles at the edge of the disc under the combined action of centrifugal force, friction force, and gravity. The particles produced by the disc granulator are round and relatively uniform in size, which can be more evenly distributed in the soil during fertilization, which is beneficial for crops to absorb nutrients. Moreover, the device has a simple structure, easy operation and maintenance, relatively low investment cost, and is suitable for use by small and medium-sized enterprises.
The extrusion granulator uses strong pressure to extrude the material from the mold into shape. This granulation method produces fertilizer particles with high density and strength, which are not easily broken or powdered during storage and transportation. Squeezing granulator can accurately control the shape and size of particles, meeting the special requirements of different users for fertilizer particle specifications. It is commonly used in the production of fertilizer products with high particle strength requirements.
The rotary drum granulator uses the rotation of the drum to make the material roll and collide inside to achieve granulation. It has high production efficiency and can continuously and stably carry out large-scale production. The rotary drum granulator has strong adaptability to raw materials and can handle various materials with different properties. By adjusting parameters such as drum speed and material humidity, the size and strength of particles can be flexibly controlled.
The fluidized bed granulator adopts fluidization technology. The material is in a fluidized state under the action of hot air, and the nozzle sprays a binder solution onto the material, causing the material particles to quickly bond into particles. The fluidized bed granulator has a fast granulation speed, produces fertilizer particles with good breathability and solubility, and has high energy utilization efficiency. By controlling relevant parameters, the particle characteristics can be accurately controlled.
The spray granulator first atomizes the fertilizer solution into tiny droplets. The droplets evaporate rapidly in the hot air environment, and the solute crystals agglomerate to form particles. It can produce fertilizer particles with highly uniform particle size, good particle flowability, and can handle special fertilizer formulas. The production process is relatively clean and suitable for producing high-end and fine fertilizers.
These granulation equipment have their own advantages. Fertilizer production enterprises can choose suitable granulation equipment based on their own production scale, product positioning, raw material characteristics, and other factors to produce high-quality fertilizer products that meet market demand.