A lentil ultrasonic rotary vibrating screen is a specialized screening machine designed to efficiently separate and classify lentils based on size while minimizing clogging and improving precision. Here’s a breakdown of its key features, working principles, and applications:
Key Features:
1. Ultrasonic Vibration System
– High-frequency ultrasonic waves (typically 20–40 kHz) are applied to the screen mesh, preventing material adhesion and mesh blockage.
– Ideal for fine lentil sorting (e.g., dehulled vs. whole lentils).
2. Rotary Vibration Mechanism
– A motor-driven eccentric block creates a three-dimensional (360°) vibration motion, ensuring even distribution and efficient screening.
– Adjustable amplitude and frequency for different lentil sizes (e.g., red, green, or black lentils).
3. Multi-Layer Screening
– Multiple screen decks (1–5 layers) allow for simultaneous classification into different size fractions (e.g., splits, broken pieces, or impurities).
4. Stainless Steel Construction
– Food-grade SS304/SS316 material ensures hygiene and durability for food processing applications.
5. Dust-Proof & Sealed Design
– Prevents cross-contamination and complies with food safety standards (e.g., FDA, CE).
How It Works:
1. Lentils are fed onto the top screen deck via a hopper.
2. Ultrasonic waves vibrate the mesh, breaking surface tension and preventing clogging.
3. Rotary vibration moves lentils in a spiral trajectory, ensuring thorough screening.
4. Separated lentils exit through different discharge ports based on particle size.
Advantages Over Traditional Screens:
✔ Higher Efficiency – Ultrasonic cleaning reduces blinding by 80–90%.
✔ Finer Sorting – Capable of sieving particles as small as 20 microns (for lentil flour or powder).
✔ Lower Maintenance – Self-cleaning mesh reduces downtime for manual cleaning.
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Applications:
– Lentil Processing Plants – Sorting whole lentils from splits or husks.
– Food Industry – Grading lentils for packaging or further processing (e.g., flour production).
– Seed Cleaning – Removing debris, stones, or undersized grains.
Recommended Manufacturers:
– Sweco (USA) – Industrial vibratory separators
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