Fluid Energy Mill

Principle of Fluid Energy Mill:

• Operates on the principle of particle size reduction by collision.
• High-velocity air or gas jets are used to create turbulent conditions, leading to size reduction through particle collision.

Construction of Fluid Energy Mill:

1. Grinding Chamber: Circular or oval chamber with no moving parts.
2. Nozzles: High-pressure air or gas jets.
3. Feed Mechanism: Hopper for material input.
4. Classifier: Separates fine particles from coarse particles.
5. Discharge Mechanism: Outlet for processed material.

Working:

• Material is introduced into the grinding chamber.
• High-velocity air or gas jets create a turbulent flow.
• Particles collide at high speeds, leading to size reduction.
• Fine particles are separated by the classifier and discharged.

Uses:

• Fine and ultra-fine grinding of heat-sensitive and friable materials.
• Common in pharmaceutical, cosmetic, and chemical industries.

Merits:

• Produces very fine particles.
• No moving parts, leading to minimal wear.
• Suitable for heat-sensitive materials.

Demerits:

• High energy consumption.
• Limited to small-scale production.
• Requires careful control of operating parameters.

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