rickzeien
Well-known member
- Joined
- Nov 14, 2017
- Messages
- 544
Here is a video explaining the grinding that occurs in a ball mill.
Many people think the ball drops down on the particles to be ground.
The actual milling occurs as the particles are held by centrifugal force in the grinding media.
Notice how the particles remain in between the balls and are ground almost continously.
In addition to critical speed the size of the balls also influences the grinding. A mix of different size balls are the most efficient.
The larger open spaces provide a course grind and the smaller spaces provide a finer grind.
Wet is faster than dry. And of course longer run time grinds more complete.
Other factors include the starting size, hardness and how fine you want when your complete.
https://youtu.be/L6sgGXXYdEU
Sent from my SM-G950U using Tapatalk
Many people think the ball drops down on the particles to be ground.
The actual milling occurs as the particles are held by centrifugal force in the grinding media.
Notice how the particles remain in between the balls and are ground almost continously.
In addition to critical speed the size of the balls also influences the grinding. A mix of different size balls are the most efficient.
The larger open spaces provide a course grind and the smaller spaces provide a finer grind.
Wet is faster than dry. And of course longer run time grinds more complete.
Other factors include the starting size, hardness and how fine you want when your complete.
https://youtu.be/L6sgGXXYdEU
Sent from my SM-G950U using Tapatalk