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Waste oil centrifuge separator working principle

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.


waste oil centrifuge