There are various methods for granulation organic fertilizers, mainly including the following:
Squeezing granulation method:
Principle: Using two counter rotating rollers to squeeze the material, the air between the powder particles is expelled when the material is under pressure, and the particles are rearranged to form tightly packed particles.
Characteristics: The generated particles have regular shapes, high surface density, and are suitable for large-scale production.
Operation: Place the granulated powder material in the extrusion granulation equipment, and then use external force to tightly compact the powder material. Due to the different methods of external force used, the molecules are recombined to make the material appear as cylindrical particles. The entire process adopts mechanized operation.
Mixing granulation method:
Principle: Use a mixer to stir the material, gradually aggregating it into particles during the stirring process.
Features: Easy to operate, but the generated particle shape and size may not be uniform enough.
Disc granulation method:
Principle: Utilizing the centrifugal force generated by the rotation of a disk, the material rolls and aggregates into particles on the disk.
Characteristics: The generated particles have a relatively regular shape and are suitable for producing spherical particles.
