An iron sand vibrating screen designed to separate particles at 200 microns (0.2mm) requires careful consideration of screen mesh, vibration parameters, and material properties. Below are key details for such an application:
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1. Screen Mesh Specifications
– Aperture Size: 200 microns (0.2mm)
– Mesh Material:
– Stainless steel (304 or 316 for corrosion resistance)
– Polyurethane for wear resistance (if abrasion is a concern)
– Wire Diameter: Thinner wires allow higher open area but reduce durability.
– Open Area: ≥30–40% to ensure good throughput without blinding.
2. Vibrating Screen Parameters
– Type of Vibrator:
– Linear motion (for high-capacity screening)
– Circular motion (for general-purpose applications)
– Frequency: 900–1500 RPM (adjustable for optimal efficiency)
– Amplitude: 3–6 mm (depends on material flow and stickiness)
– Inclination Angle: 10°–20° (affects screening speed and efficiency).
3. Iron Sand Properties
– High density (~5 g/cm³) requires robust vibration to prevent clogging.
– Abrasive nature → Polyurethane screens may last longer than metal in some cases.
– Moisture content affects screening; dry screening is preferred for fine particles.
4. Common Challenges & Solutions
– Blinding/Clogging → Use anti-blinding devices (ball decks, ultrasonic cleaners).
– Wear & Tear → Choose hardened steel or polyurethane screens.
– Throughput Issues → Optimize feed rate and vibration settings.
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5. Recommended Equipment
– Linear Vibrating Screen (for high-capacity separation).
– High-Frequency Dewatering Screen (if moisture is present).
Would you like recommendations for specific manufacturers or additional details on motor power, deck layers, or feed rate calculations?