digital pressure gauge has launched its new PROPHI pre-grinding unit, which grinds coarse feed material that’s tough to deal with in a standard mill.
The PROPHI 20 is a disc agitator bead mill modified for coarse grinding with high throughput and a grinding chamber volume 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 may be achieved with this machine dimension. The diameter of the grinding media used sometimes ranges from 2.0 –4.0 mm.
During growth of the pre-grinding unit, a disc agitator was selected because the identical internet power enter yields virtually double the grinding chamber quantity than when using a pin agitator. This provides considerably more grinding body contacts and a bigger cooling surface for grinding.
With a pre-grinding unit, the particle measurement distribution of a product may be adjusted in order that very small grinding media can be utilized within the subsequent fine-grinding stage. Tests have shown that process management with the Netzsch PROPHI pre-grinding unit can cut back the particular vitality requirement by greater than 50% as compared with utilizing traditional pre-dispersion methods.