Principle of Hammer Mill:
- Operates on the principle of impact and attrition.
- Material is fed into a grinding chamber where it is struck by hammers attached to a rotating shaft, resulting in size reduction through impact and shearing forces.
Advertisements
Construction of Hammer Mill:
- Grinding Chamber: Cylindrical chamber where material is introduced.
- Hammers: Swinging or fixed blades attached to a rotating shaft.
- Screen: Perforated metal sheet allowing only particles of desired size to pass.
- Feed Mechanism: Hopper for material input.
- Discharge Mechanism: Outlet for processed material.
Working of Hammer Mill:
- Material is fed into the chamber and struck by rapidly rotating hammers.
- Size reduction occurs by impact and attrition.
- Desired particle size is achieved by passing through the screen.
- Processed material exits through the discharge mechanism.
Advertisements
Uses:
- Size reduction of a wide range of materials including grains, spices, pharmaceuticals, and chemicals.
Merits:
- Simple and robust construction.
- High throughput and efficiency.
- Capable of handling a wide variety of materials.
Advertisements
Demerits:
- High noise levels.
- Potential for high heat generation.
- Wear and tear of hammers and screens.
Thank you for reading from Firsthope's notes, don't forget to check YouTube videos!
