Material feeding: The material is fed into the center of a rotating disk through the feeding port. The feed usually needs to be uniform to ensure the stability of the granulation process and consistency in particle quality.
Centrifugal force: The rotation of the disk generates centrifugal force, pushing the material towards the edge of the disk. The magnitude of centrifugal force depends on the rotational speed of the disk and the distance from the material to the center of the disk.
Particle formation: Under the combined action of centripetal force (the force acting from the center of the disk towards the material) and centrifugal force, the material begins to roll and collide. Small particles gradually aggregate into larger particles through the adhesive force between them. This process usually requires the addition of an appropriate amount of water or binder to promote particle formation and stability.
Rolling and collision: The material continuously rolls inside the disc, colliding with the disc wall and other particles, which helps to densify the particles and circularize their shape.
Particle growth and grading: By adjusting the rotation speed and tilt angle of the disc, the size and shape of the particles can be controlled. Smaller particles continue to roll and grow inside the disc, while larger particles are pushed to the edge of the disc due to centrifugal force and discharged through the discharge port.
Discharge and collection: Particles that reach a certain size are discharged from the disc and enter the subsequent screening or cooling process to remove unqualified particles and stabilize the structure of the particles.