Netzsch has released its new PROPHI pre-grinding unit, which grinds coarse feed material that’s tough to handle in a normal 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 velocity range of 8–12 m/s, a product throughput of up to 25 m³/h may be achieved with this machine size. เกจวัดแรงดันปั๊มลมpuma of the grinding media used usually ranges from 2.zero –4.zero mm.
During growth of the pre-grinding unit, a disc agitator was selected as a outcome of the same internet power input yields almost double the grinding chamber volume than when utilizing a pin agitator. This provides considerably extra grinding body contacts and a larger cooling floor for grinding.
With a pre-grinding unit, the particle size distribution of a product may be adjusted so that very small grinding media can be used in the subsequent fine-grinding stage. Tests have shown that process management with the Netzsch PROPHI pre-grinding unit can reduce the precise vitality requirement by more than 50% as compared with utilizing traditional pre-dispersion methods.
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