Netzsch has released its new PROPHI pre-grinding unit, which grinds coarse feed materials that is troublesome to handle in a regular mill.
The PROPHI 20 is a disc agitator bead mill modified for coarse grinding with high throughput and a grinding chamber quantity of approx. 20 litres. In the peripheral velocity range of 8–12 m/s, a product throughput of as a lot as 25 m³/h may be achieved with this machine measurement. The diameter of the grinding media used typically ranges from 2.0 –4.zero mm.
During เพรสเชอร์เกจ of the pre-grinding unit, a disc agitator was chosen as a end result of the identical net power enter yields nearly double the grinding chamber quantity than when utilizing a pin agitator. This provides significantly extra grinding physique contacts and a bigger cooling floor for grinding.
With a pre-grinding unit, the particle measurement distribution of a product could be adjusted in order that very small grinding media can be utilized in the subsequent fine-grinding stage. Tests have proven that process management with the Netzsch PROPHI pre-grinding unit can scale back the particular vitality requirement by greater than 50% as in contrast with using basic pre-dispersion techniques.