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 normal 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 range of 8–12 m/s, a product throughput of up to 25 m³/h can be achieved with this machine size. The diameter of the grinding media used sometimes ranges from – mm.
During improvement of the pre-grinding unit, a disc agitator was selected because the identical web energy enter yields almost double the grinding chamber quantity than when utilizing a pin agitator. This gives significantly more grinding physique contacts and a larger cooling surface for grinding.
With pressure gauge 4 นิ้ว ราคา -grinding unit, the particle dimension distribution of a product could be adjusted in order that very small grinding media can be used within the subsequent fine-grinding stage. Tests have proven that process control with the Netzsch PROPHI pre-grinding unit can scale back the precise power requirement by greater than 50% as in contrast with using traditional pre-dispersion techniques.

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