Netzsch has launched its new PROPHI pre-grinding unit, which grinds coarse feed material that is difficult 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 speed range of 8–12 m/s, a product throughput of as a lot as 25 m³/h could be achieved with this machine measurement. The diameter of the grinding media used typically ranges from 2.zero –4.0 mm.
During เกจวัดความดันแก๊ส of the pre-grinding unit, a disc agitator was chosen as a outcome of the same internet energy enter yields virtually double the grinding chamber volume than when using a pin agitator. This gives considerably more grinding body contacts and a bigger cooling floor for grinding.
With a pre-grinding unit, the particle dimension distribution of a product can be adjusted in order that very small grinding media can be used within the subsequent fine-grinding stage. Tests have shown that course of control with the Netzsch PROPHI pre-grinding unit can reduce the precise vitality requirement by greater than 50% as in contrast with utilizing classic pre-dispersion systems.
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