Netzsch offers pre-grinding unit

เพรสเชอร์เกจคือ has released its new PROPHI pre-grinding unit, which grinds coarse feed material that’s tough to deal with in a regular 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 pace range of 8–12 m/s, a product throughput of up to 25 m³/h can be achieved with this machine dimension. The diameter of the grinding media used sometimes ranges from –4.0 mm.
During development of the pre-grinding unit, a disc agitator was selected as a end result of the identical net energy input yields nearly double the grinding chamber quantity than when using a pin agitator. This offers significantly extra grinding physique contacts and a bigger cooling floor for grinding.
With a pre-grinding unit, the particle measurement 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 course of control with the Netzsch PROPHI pre-grinding unit can scale back the specific energy requirement by greater than 50% as in contrast with utilizing traditional pre-dispersion techniques.

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