Netzsch provides pre-grinding unit

Netzsch has launched its new PROPHI pre-grinding unit, which grinds coarse feed material that’s tough to deal with in a standard mill.
The PROPHI 20 is a disc agitator bead mill modified for coarse grinding with high 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 size. ราคาpressuregauge of the grinding media used usually ranges from 2.0 –4.0 mm.
During development of the pre-grinding unit, a disc agitator was chosen as a outcome of the identical web power enter yields almost double the grinding chamber quantity than when using a pin agitator. This gives significantly more grinding body contacts and a bigger cooling floor for grinding.
With a pre-grinding unit, the particle dimension distribution of a product could be adjusted so that very small grinding media can be utilized in the subsequent fine-grinding stage. Tests have shown that process management with the Netzsch PROPHI pre-grinding unit can cut back the precise power requirement by greater than 50% as compared with using traditional pre-dispersion methods.

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