During the pelletizing process in the fertilizer, metallurgy, and building materials industries, the disc granulator, with its unique structural design and stable performance, has become a mainstream granulation equipment. Its core advantages revolve around efficiency, stability, and flexibility, demonstrating significant practical value in actual production.
The disc granulator utilizes a tilted disc structure with an adjustable tilt angle between 35° and 55°. Combined with a uniformly distributed agitator at the bottom, this creates a stable “rolling-agglomeration” cycle within the disc. This design not only reduces friction between the material and the disc’s inner wall but also allows precise control of pellet size by adjusting the rotational speed (typically 10-30 rpm). The finished pellets can achieve a roundness of 0.85 or higher, meeting high-quality pelletizing requirements. Furthermore, the disc body is welded from thickened steel plates and features a wear-resistant inner lining, extending its service life by over 30% compared to conventional granulators and reducing ongoing maintenance costs. The disc granulator boasts remarkable performance and energy efficiency. Its planetary gear drive system boasts a transmission efficiency of up to 95%, reducing energy consumption by 15%-20% compared to traditional belt drives. Furthermore, the granulation process does not require high-temperature heating, relying solely on the material’s inherent adhesiveness and mechanical forces to form the pellets. This not only saves energy but also prevents the damage to the material’s composition caused by high temperatures, making it particularly suitable for granulating heat-sensitive materials. Furthermore, the machine’s automatic material distribution device and spray system ensure uniform mixing of the material and binder, maintaining a stable granulation yield of over 90%, significantly reducing rework.
Another major advantage of the disc granulator is its wide range of applications. Whether granulating fertilizer production lines for organic and compound fertilizers, or forming industrial raw materials such as metal ore powder and coal powder, it can adapt to different material characteristics by adjusting the disc diameter (typical models range from 1.2m to 3m) and process parameters. Small-diameter models are suitable for small-batch laboratory research and development, while large-diameter models can meet the needs of 10,000-ton production lines, offering far greater flexibility than similar equipment such as extrusion granulators.
With its outstanding features such as reasonable structure, high efficiency and energy saving, and wide applicability, the disc granulator machine occupies an important position in the modern granule forming process, providing reliable equipment support for various industries to reduce production costs and improve product quality.