Oil and Fat Separation Using Vacuum Drum Filters
Vacuum drum filters are widely recognized for their efficiency and continuous operation in solid-liquid separation processes. When it comes to applications involving oils and fats, such as in food processing, edible oil refining, or wastewater treatment in meat and dairy industries, vacuum drum filters offer a reliable solution to remove suspended solids and clarify liquids with high fat content.
The system operates by applying a vacuum inside a rotating drum that is partially submerged in the slurry. As the drum rotates, a thin layer of the slurry adheres to the outer surface of the filter medium. The vacuum draws the liquid phase through the filter cloth, leaving a cake of solid particles—often including grease, fat, or protein—on the drum surface. The cake is then dried with air and discharged with a scraper or roller.
For oily or greasy materials, special considerations are taken in the design. The drum surface is often equipped with a fine mesh stainless steel screen, and the filter media is selected to withstand clogging and facilitate easy cleaning. To improve separation efficiency and reduce filter blinding, pre-coat layers of filter aid such as diatomaceous earth or perlite may be used.
Applications include:
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Clarification of edible oils after pressing or centrifugation
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Sludge dewatering from oil-based wastewater
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Recovery of valuable fats in meat and poultry processing
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Separation of solids from oil emulsions in food manufacturing
Benefits of using vacuum drum filters for oil and fat processing:
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Continuous operation with low energy consumption
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Customizable drum sizes and materials (such as SS304 or SS316L)
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Ability to handle high-viscosity and high-solid content liquids
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Easy cake discharge and minimal downtime for cleaning
With the right design and filtration media, vacuum drum filters can significantly improve the quality of the filtered liquid while maximizing fat recovery and minimizing waste. Whether you are operating in food, cosmetic, or biofuel industries, vacuum drum filters present a scalable and cost-effective filtration technology.
If you are processing liquids rich in oils and fats and need a reliable, automatic separation system, a vacuum drum filter might be your ideal solution.
Any requirements, contact us now!
Grace
Email: grace@filtrationchina.com
Mobile/Whatsapp/WeChat: +86 17269571160
