Carbon black powder is an important industrial material used in rubber, tire, plastic, and pigment production. However, its fine and dusty nature makes handling, storage, and transportation challenging. That’s why carbon black pelletizing has become a crucial process for converting black carbon powder into pellets. There are several pelletizing methods available today, but 3 solutions stand out for their efficiency and reliability in industrial production.
1. Wet Granulation with Disc Pelletizer
The disc (pan) pelletizing system is one of the most popular solutions for carbon black pellet making. In this process, carbon black powder is mixed with a binder and a small amount of water, then fed into a rotating disc granulator. As the disc rotates, the material forms into uniform spherical pellets. This method allows precise control of pellet size (typically 1–5 mm) by adjusting the disc angle and moisture content. It’s ideal for small to medium-scale plants because of its simple structure, low cost, and high pelletizing rate (up to 93%).
2. Extrusion or Roller Press Granulation
For higher capacity and denser pellets, many factories choose a roller press pelletizing system. In this method, carbon black powder is pressed between two rollers with specially designed grooves to form compacted sheets, which are then crushed and screened into pellets. This process is often binder-free, consumes less water, and offers excellent control of bulk density (650–900 kg/m³). It’s especially suitable for industries requiring hard and low-dust pellets.
3. Drum Granulation with Drying and Cooling System
For large-scale carbon black granules production, the rotary drum pelletizing system provides a continuous and automated solution. The process integrates feeding, granulation, drying, cooling, and screening in one line. By spraying water or binder inside the rotating drum, the powder gradually forms into rounded granules. The system’s strength lies in its high throughput (5–30 TPH) and strong adaptability to different types of carbon black, including pyrolysis carbon black.
Each of these carbon black pelletizing solutions offers unique advantages. Disc granulation suits flexible and low-cost production, roller press granulation delivers dense and dust-free pellets, while drum granulation is perfect for large-scale continuous operation. Choosing the right system depends on raw material type, desired pellet quality, and investment budget—but all three methods help turn fine carbon black powder into a valuable, market-ready product. Here, YUSHUNXIN factory can offer you customized solution.