Netzsch has launched its new PROPHI pre-grinding unit, which grinds coarse feed material that is tough to handle in a standard 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 pace range of 8–12 m/s, a product throughput of up to 25 m³/h could be achieved with this machine dimension. The diameter of the grinding media used typically ranges from 2.zero –4.0 mm.
During development of the pre-grinding unit, a disc agitator was chosen as a end result of the identical internet energy enter yields virtually double the grinding chamber quantity than when using a pin agitator. เกจวัดแรงดันปั๊มลมpuma gives significantly extra grinding physique contacts and a bigger 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 used within the subsequent fine-grinding stage. Tests have shown that process control with the Netzsch PROPHI pre-grinding unit can reduce the specific power requirement by more than 50% as compared with utilizing classic pre-dispersion methods.
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