Netzsch has released its new PROPHI pre-grinding unit, which grinds coarse feed materials that is troublesome 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 volume of approx. 20 litres. In the peripheral speed range of 8–12 m/s, a product throughput of up to 25 m³/h may be achieved with this machine dimension. The diameter of the grinding media used usually ranges from 2.zero –4.zero mm.
During เกจวัดแรงดัน of the pre-grinding unit, a disc agitator was chosen because the same web energy enter yields virtually double the grinding chamber quantity than when using a pin agitator. This offers considerably extra grinding body contacts and a bigger cooling surface for grinding.
With a pre-grinding unit, the particle size distribution of a product can be adjusted so that very small grinding media can be used in the subsequent fine-grinding stage. pressure gauge have proven that course of control with the Netzsch PROPHI pre-grinding unit can cut back the particular power requirement by greater than 50% as in contrast with using traditional pre-dispersion systems.
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