A High Frequency Screen is a specialized vibrating screen designed for fine particle separation, widely used in industries like mining, mineral processing, and recycling. Here’s a detailed breakdown:
Key Features:
1. High Vibration Frequency (3,000–7,200 RPM):
– Enables efficient separation of fine particles (typically <0.075 mm) by overcoming surface tension and clogging.
2. Small Mesh Openings:
– Uses fine screens (often polyurethane or stainless steel) to achieve precise grading or dewatering.
3. Low Amplitude:
– Gentle vibration prevents screen damage while maintaining material flow.
4. Applications:
– Mineral Processing: Sizing silica sand, iron ore, coal, etc.
– Aggregates: Classifying crushed stone or sand.
– Recycling: Separating metals, plastics, or waste materials.
– Dewatering: Removing water from slurries (e.g., tailings).
Advantages:
– Higher efficiency for fine materials compared to traditional screens.
– Compact design with modular screens for easy maintenance.
– Reduced blinding/pegging due to intense vibration.
Types:
– Linear Motion: For dry or wet screening at medium
acity.
– Elliptical Motion: Combines high frequency with stratification for better accuracy.
Manufacturers:
Leading brands include Derrick Corporation, Metso Outotec, Schenck Process, and Haver & Boecker.
Would you like details on specific models or operational tips?
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