Hello there,
in the lab we have a Fritsch Pulverisette 7 planetary ball mill. If one wants to dry-grind dried and "smallish-cut" banana peel to a powder, the usage of the device isn't recommended. A colleague tried to grind grape pomace in it and it didn't work ( I believe he used the ~5mm ZrO2 balls).
So, why doesn't this work that well? And even more important: with what kind of balls (which substance, diameter..) do you think this would work best?
Thank you for an answer!
Regards, Vera
To improve the grinding efficiency, you might want to consider using grinding balls of a different material or size. The choice of grinding balls should be determined experimentally, considering the hardness and size of the material to be ground2. For instance, tungsten carbide balls may be combined with steel bowls2.
Remember, it’s always a good idea to consult the device’s operating manual or the manufacturer for specific recommendations based on your application. 😊
New insights into ball-milled zero-valent iron composites for pollution remediation: An overview
This paper describes the influencing factors of ball milling, and I hope you find it helpful
I also usually refer to the ball mill's instruction manual and also talk to the technicians, who will have more experience
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