The disc granulator is a widely used pelletizing machine. Its unique structure and operating principle make it a crucial tool in a variety of applications. The disc's rotation forces the material inside the disc under the combined effects of centrifugal force, friction, and gravity, gradually rolling it into balls. This transforms powdery or lumpy materials into granules.
The disc granulator is mainly composed of a disc, a transmission device, a frame, a feeding device, a water spray device, etc. Its core working component is a tilted disc, the tilt angle and speed of which can be adjusted according to the characteristics of different materials and granulation requirements.
Once the material enters the disc, it continuously slides and tumbles along its bottom as the disc rotates. Simultaneously, a water sprayer applies an appropriate amount of water or binder to the material, moistening the surface of the particles. Friction and centrifugal force gradually bind the small particles together, forming larger ones. As the particles grow larger, when their gravity exceeds the centrifugal force, they are ejected from the edge of the disc, completing the granulation process.
The disc granulator has the characteristics of simple structure, easy operation and low energy consumption. Compared with other granulation equipment, it has a strong adaptability to materials and can process a variety of materials with different properties. The granules produced have good sphericity, high strength and stable and reliable quality.

 

 Working principle

The working principle of this series of products: the main motor drive pulley and belt, through the reducer drive pinion, pinion and big gear which fixed at the end teeth meshing, work to the big gear through a special reasonable design, installation on the spindle which fixed on adjust plate ,to support the work of the entire disc (the machine used with the spray machine) material feeding into the disc, with disk rotating and spraying device, materials will evenly stick together to form ball shape granules. In the upper part of the design is automatic cleaning device to prevent the material sticky on disc, thus greatly improving machine service life. With  the continuous rotation of the motor, the material constantly Enter, in order to achieve mass production, reach the needs of continuous work.

How is the disc granulator designed according to the granulation process?

The disc granulator consists of several key components, which work together to complete the granulation process:
disc
It is the core working part of the disc granulator, usually welded from steel plates. Its inner wall is usually paved with wear-resistant linings, such as rubber linings, polyurethane linings, etc., to improve the wear resistance of the disc and extend its service life.
The diameter and depth of the disc vary depending on production capacity, with common diameters ranging from 1 to 5 meters and depths from 0.3 to 1.5 meters. The disc's tilt angle can be adjusted using an adjustment device, typically between 30° and 60°.
transmission
It consists of a motor, a speed reducer, a pulley, a coupling, etc. The motor provides power, which is reduced by the speed reducer and drives the disc to rotate. The performance of the transmission device directly affects the speed stability of the disc, which in turn affects the granulation quality.
The rotation speed of the disc can be adjusted according to needs, generally within the range of 5-30 rpm.
frame
Used to support components such as discs and transmission devices, it is usually welded with steel sections and has sufficient strength and rigidity to ensure the stability of the equipment during operation.
Feeding device
It mainly consists of a hopper and a feeder, which are used to evenly and stably add materials to the disc. Feeder types include screw feeders, belt feeders, etc. The appropriate feeding method can be selected according to the characteristics of the material.
Water spray device
It consists of a water pipe and nozzles, and is used to spray water or adhesive onto the material in the disc. The number and position of the nozzles can be set according to the size of the disc and the distribution of the material to ensure that the material is evenly wetted.