Netzsch has released its new PROPHI pre-grinding unit, which grinds coarse feed material that’s troublesome to deal with in a regular 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 vary of 8–12 m/s, a product throughput of up to 25 m³/h can be achieved with this machine size. The diameter of the grinding media used usually ranges from – mm.
During development of the pre-grinding unit, a disc agitator was selected as a outcome of the same net power enter yields nearly double the grinding chamber quantity than when using a pin agitator. This gives considerably more grinding body contacts and a bigger cooling surface for grinding.
With เกจวัดแรง -grinding unit, the particle size distribution of a product could be adjusted in order that very small grinding media can be used within the subsequent fine-grinding stage. Tests have proven that course of control with the Netzsch PROPHI pre-grinding unit can reduce the particular power requirement by greater than 50% as compared with utilizing classic pre-dispersion methods.