Principle of Ball Mill:
- Operates on the principle of impact and attrition.
- Rotating balls in a cylindrical shell cause size reduction by repeated impacts as they tumble.
Construction of Ball Mill:
Advertisements
- Cylindrical Shell: Rotating drum filled with grinding media (balls).
- Grinding Media: Balls made of steel, ceramic, or other materials.
- Feed Mechanism: Hopper for material input.
- Discharge Mechanism: Outlet for processed material.
- Drive Mechanism: Motor and gears to rotate the shell.
Working of Ball Mill:
- Material is fed into the rotating shell filled with balls.
- As the shell rotates, balls fall onto the material, causing impact and attrition.
- The continuous rotation allows for thorough mixing and size reduction.
- Processed material is discharged from the outlet.
Advertisements
Advertisements
Uses:
- Fine grinding of materials in the mineral, ceramic, pharmaceutical, and chemical industries.
Merits:
- Suitable for wet and dry grinding.
- Uniform particle size distribution.
- High efficiency for fine and ultra-fine grinding.
Advertisements
Demerits:
- High energy consumption.
- Long milling times.
- Wear of grinding media and liners.
Thank you for reading from Firsthope's notes, don't forget to check YouTube videos!
