Netzsch has released its new PROPHI pre-grinding unit, which grinds coarse feed materials that’s troublesome to deal with in a regular 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 as much as 25 m³/h could be achieved with this machine size. The diameter of the grinding media used typically ranges from 2.zero –4.0 mm.
During improvement of the pre-grinding unit, a disc agitator was selected because the identical net energy input yields nearly double the grinding chamber quantity than when utilizing a pin agitator. pressure gauge nuova fima ราคา provides significantly extra grinding body contacts and a larger cooling surface 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 proven that course of management with the Netzsch PROPHI pre-grinding unit can scale back the specific energy requirement by greater than 50% as in contrast with utilizing classic pre-dispersion systems.
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