The HD/HDDM combination Attritor eliminates this cumbersome process and provides the benefit of two mills in one. Both larger grinding media and micron particle size targets can be achieved with a simple changeover.
The key advantages of circulation grinding include a high circulating or pumping rate—the entire contents of the holding tank are passed through the mill up to eight times per hour, resulting in a faster grind and narrower particle size distribution
A number of things made this project a “win-win”. Not only did the Attritor need to be explosion-proof, but the customer had limited space. So, instead of purchasing several large batch Attritors, we recommended a large 1,000-gallon pre-mix holding tank as part of the system to increase their total production capacity with only one circulation “Q” system Attritor. This same customer previously purchased a large S400 batch Attritor and this time needed a much larger capacity that we could accommodate with the QL100.
This versatile design provides us with an opportunity to quickly and easily switch between S-10 Attritor and S-15 Attritor tank assemblies. Additionally, the S-10/15 Attritor can be configured for wet, dry, inert atmosphere or cryogenic milling. This new Attritor will provide improved flexibility to our pilot plant.