A disc mill is a type of size reduction equipment used for grinding, crushing, or pulverizing solid materials into smaller particles. It consists of two discs (one stationary and one rotating) with abrasive surfaces that shear, crush, and grind the material as it passes between them.
Key Features of a Disc Mill:
1. Working Principle:
– Material is fed into the gap between two discs (one fixed, one rotating at high speed).
– The discs may have teeth, grooves, or abrasive surfaces to enhance grinding.
– Size reduction occurs due to shear, compression, and impact forces.
2. Types of Disc Mills:
– Single Disc Mill: One rotating disc against a stationary surface.
– Double Disc Mill: Two counter-rotating discs for finer grinding.
– Vertical/Horizontal Orientation: Depending on design and application.
3. Adjustable Gap:
– The distance between discs can be adjusted to control particle size.
4. Materials Processed:
– Grains, seeds, spices, minerals, chemicals, plastics, and fibrous materials.
5. Applications:
– Food processing (flour milling, spice grinding).
– Pharmaceuticals (powdering drugs).
– Mining & metallurgy (ore crushing).
– Recycling (plastic & rubber shredding).
Advantages:
✔ High efficiency in fine grinding.
✔ Adjustable particle .jpg)
e output.
✔ Suitable for wet or dry milling.
Disadvantages:
✖ Wear & tear on discs over time.
✖ Heat generation may affect heat-sensitive materials.
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