Netzsch has released its new PROPHI pre-grinding unit, which grinds coarse feed materials 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 vary of 8–12 m/s, a product throughput of as a lot as 25 m³/h may be achieved with this machine measurement. The diameter of the grinding media used usually ranges from 2.zero –4.0 mm.
During improvement of the pre-grinding unit, a disc agitator was selected because the identical internet energy input yields nearly double the grinding chamber quantity than when utilizing a pin agitator. This offers significantly more grinding physique contacts and a bigger cooling floor for grinding.
With เพรสเชอร์เกจไฮดรอลิค -grinding unit, the particle size distribution of a product could be adjusted in order that very small grinding media can be used in the subsequent fine-grinding stage. Tests have proven that course of control with the Netzsch PROPHI pre-grinding unit can cut back the specific energy requirement by greater than 50% as compared with using basic pre-dispersion systems.
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