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Time:2024-11-21 15:00:12 Reading volume:
A waste oil centrifuge separator works on the principle of centrifugal force to separate contaminants (such as water, sludge, and solid particles) from waste oil. Here's a step-by-step explanation of how it works:
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1. Feeding the Waste Oil
- Waste oil, often containing contaminants like water, dirt, and sludge, is fed into the centrifuge separator.
- The oil is introduced through an inlet and directed into the separator's bowl.
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2. Rotation and Centrifugal Force
- The bowl of the centrifuge rotates at high speeds, typically thousands of revolutions per minute (RPM).
- This rapid rotation generates centrifugal force, which is much greater than the force of gravity.
- The centrifugal force causes substances of different densities to separate:
- Heavier contaminants (e.g., sludge, dirt, and water) are forced to the outer edges of the bowl.
- Lighter substances (e.g., clean oil) remain closer to the center.
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3. Separation of Phases
- The separated layers form distinct zones within the rotating bowl:
- Solids Zone: Solids, like sludge and dirt, accumulate at the outermost layer.
- Water Zone: If water is present, it forms a layer just inside the solids zone due to its lower density compared to solids but higher than oil.
- Oil Zone: Clean oil forms the innermost layer, closest to the bowl's center.
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4. Discharge of Clean Oil
- The purified oil is collected through an outlet near the center of the centrifuge.
- Some systems use gravity or pressure to extract the clean oil.
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5. Removal of Contaminants
- Depending on the centrifuge design:
- Manual Removal: The machine is stopped, and the solid contaminants are scraped or washed out.
- Automatic Discharge: Some advanced centrifuges feature automatic discharge mechanisms for continuous operation. Solids and water are expelled through separate outlets.
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Key Features of the Process
1. No Filters Required: Centrifugal separation avoids the need for filters, making it cost-effective and reducing maintenance.
2. Continuous Operation: Many systems are designed for continuous oil processing, minimizing downtime.
3. Effective Water and Solid Removal: The high centrifugal force ensures the effective removal of both free water and fine particles.
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Applications
- Cleaning and recycling used lubricating oils.
- Waste oil recovery in marine engines and industrial applications.
- Purification of hydraulic oils, turbine oils, and transformer oils.
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A waste oil centrifuge separator is highly efficient, especially in applications where both water and fine particulate contaminants are present. It not only reduces waste but also helps reuse valuable resources.