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Grit Reduction of Carbon Black

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Carbon Black is a substance that is used in the manufacturing of many common petroleum-based items, such as tires, pigments, paints, plastics, and more. Carbon gas is created through the incomplete combustion of many petroleum-based products, such as tar. However, carbon black’s production process has a tendency to leave behind a lot of grit in the carbon black. Hosokawa Micron Power Systems has many applications capable of classifying and grinding down the grit, resulting in the production of carbon black. These applications include:


Mikro Pulverizer Hammer and Screen Mill

The Mikro Pulverizer Hammer and screen mill is a mechanical impact mill which uses a static screen to control particle size. It is capable of grinding a wide array of materials down to D90 = 40 µm. In the production of carbon black, the Mikro Pulverizer grinds down the particles, creating finer particle sizes and reducing the carbon black’s grit.


Mikro ACM Air Classifying Mill

The Mikro ACM Air Classifying Mill is an air-swept mechanical impact mill that uses an air classifier to grind and classify in one simple step. It is capable of processing a wide array of materials down to D97 = 20 µm. In the production of Carbon Black, the Mikro ACM reduces the carbon black’s particle size, resulting in a lower grit size.


Vertical Long-Gap Mill

The Vertical Long-Gap Mill is a grinding mill with an air classifier, and a specialized grinding chamber. This grinding chamber has a small space between the hammer assembly and the multiple deflector liner. This gives the mill its “vertical long-gap” name. The Vertical Long Gap Mill grinds and classifies the carbon black, reducing its grit in a similar matter to the Mikro ACM.


Mikro e-ACM Enhanced Air Classifying Mill

The Mikro e-ACM is an improved version of the Mikro ACM. It is improved so that it has a better capability to process carbon black. The way it is improved is through the addition of a venturi, which helps to draw out the coarse particles from the grinding chamber.  This assists with the processing of carbon black by enhancing circulation so that the coarse materials can better flow out of the chamber and then back in to be reprocessed.


If you want to learn more about the grit reduction of carbon black, be sure to watch the full webinar.

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