Netzsch has launched its new PROPHI pre-grinding unit, which grinds coarse feed material that’s tough to handle in a standard 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 velocity vary of 8–12 m/s, a product throughput of as much as 25 m³/h can be achieved with this machine size. The diameter of the grinding media used usually ranges from 2.zero –4.0 mm.
During improvement of the pre-grinding unit, a disc agitator was chosen because the identical internet power enter yields virtually double the grinding chamber quantity than when using a pin agitator. This gives significantly extra grinding physique contacts and a bigger cooling surface for grinding.
With เพรสเชอร์เกจน้ำ -grinding unit, the particle dimension distribution of a product can be adjusted so that very small grinding media can be utilized within the subsequent fine-grinding stage. Tests have proven that course of management with the Netzsch PROPHI pre-grinding unit can reduce the precise energy requirement by greater than 50% as in contrast with using traditional pre-dispersion techniques.
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