Netzsch presents pre-grinding unit

Netzsch has released its new PROPHI pre-grinding unit, which grinds coarse feed material that’s difficult to handle in a standard mill.
The PROPHI 20 is a disc agitator bead mill modified for coarse grinding with excessive throughput and a grinding chamber volume of approx. 20 litres. In the peripheral velocity vary of 8–12 m/s, a product throughput of as much as 25 m³/h may be achieved with this machine measurement. pressure gauge 2.5 นิ้ว of the grinding media used typically ranges from 2.0 –4.0 mm.
During development of the pre-grinding unit, a disc agitator was chosen as a outcome of the same internet energy input yields virtually double the grinding chamber quantity than when using a pin agitator. This offers considerably extra grinding body contacts and a bigger cooling surface for grinding.
With a pre-grinding unit, the particle dimension distribution of a product may be adjusted so that very small grinding media can be used within the subsequent fine-grinding stage. Tests have shown that course of management with the Netzsch PROPHI pre-grinding unit can scale back the specific power requirement by greater than 50% as compared with using traditional pre-dispersion systems.

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