The drum granulator stands out among many granulation equipment due to its unique equipment principle, becoming a key equipment for achieving efficient production. Behind its principle lie many mysteries that promote efficient production.
The operation of the rotary drum granulator starts with the transmission system driving the rotary drum to rotate steadily. The drum, as the core component, provides a dynamic space for the granulation process of materials. Powdered materials are uniformly fed into the drum through the feeding system.
During the rotation of the drum, the material is subjected to a combined effect of centrifugal force, frictional force, and gravity. Centrifugal force makes the material tightly adhere to the inner wall of the drum, while frictional force pushes the material upwards along the inner wall, and then falls back under the action of gravity, forming a cyclic motion. This cyclic motion enables the materials to be fully mixed in the drum, providing a good foundation for subsequent granulation.
The spraying system plays a crucial role in this process. It precisely sprays the adhesive onto the moving material. The uniform distribution of adhesive is key, as it can quickly bond material particles together and form initial particle nuclei. As the drum continues to rotate, these particle nuclei continuously roll and collide, absorbing surrounding powdery materials and gradually growing.
The design of the copying board inside the drum is a major mystery for improving production efficiency. The copying board will continuously lift the material, causing it to form a parabolic motion trajectory inside the drum. This not only increases the contact area between the material and the binder, but also greatly increases the collision frequency between the materials. More collisions mean that particles have more opportunities to adsorb new materials, thereby accelerating particle growth and improving granulation efficiency.
In addition, the rotary drum granulator is also very flexible in parameter control. Operators can accurately adjust the speed of the drum according to the characteristics of the material and production requirements. The appropriate rotational speed can ensure that the material has an appropriate residence time in the drum, allowing the particles to fully grow while ensuring the continuity and efficiency of production. The spraying amount and concentration of the adhesive can also be adjusted according to the actual situation to achieve the best granulation effect.
Through these clever designs and flexible parameter control, the rotary drum granulator can achieve efficient production processes while ensuring particle quality. It quickly and stably converts powdered materials into granular products, meeting the needs of different industries for granulation production and providing strong guarantees for the efficient operation of industrial production.
