Netzsch provides pre-grinding unit

เพรสเชอร์เกจดิจิตอล has released its new PROPHI pre-grinding unit, which grinds coarse feed material that is difficult to handle in a normal 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 speed vary of 8–12 m/s, a product throughput of as much as 25 m³/h could be achieved with this machine size. The diameter of the grinding media used usually ranges from 2.0 – mm.
During development of the pre-grinding unit, a disc agitator was selected as a result of the identical internet power input yields virtually double the grinding chamber volume than when using a pin agitator. This gives significantly extra grinding physique contacts and a bigger cooling floor for grinding.
With a pre-grinding unit, the particle measurement distribution of a product may be adjusted in order that very small grinding media can be utilized within the subsequent fine-grinding stage. Tests have shown that process management with the Netzsch PROPHI pre-grinding unit can scale back the particular energy requirement by greater than 50% as compared with using basic pre-dispersion methods.

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