Netzsch provides pre-grinding unit

Netzsch has released its new PROPHI pre-grinding unit, which grinds coarse feed material that’s difficult to deal with in a regular mill.
The PROPHI 20 is a disc agitator bead mill modified for coarse grinding with excessive throughput and a grinding chamber quantity of approx. 20 litres. In the peripheral velocity vary of 8–12 m/s, a product throughput of up to 25 m³/h could be achieved with this machine size. เกวัดแรงดัน of the grinding media used sometimes ranges from 2.0 – mm.
During development of the pre-grinding unit, a disc agitator was chosen as a end result of the same internet energy enter yields almost double the grinding chamber volume than when using a pin agitator. This provides significantly extra grinding physique contacts and a bigger cooling surface for grinding.
With a pre-grinding unit, the particle dimension distribution of a product can be adjusted so that very small grinding media can be used in the subsequent fine-grinding stage. Tests have shown that process management with the Netzsch PROPHI pre-grinding unit can cut back the specific power requirement by more than 50% as in contrast with using traditional pre-dispersion methods.

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