Crude Oil Decanter Centrifuge Separator Machine for Solvent Extraction Line

The Crude Oil Decanter Centrifuge is installed after extraction to clarify the miscella, the mixture of crude oil and solvent, before it enters the evaporation stage. Fine meal particles and traces of water carried over from the extractor create foam, block heat exchangers and lower the quality of the final oil, so they must be removed early and efficiently.

Our decanter centrifuge uses a high speed rotating bowl and a slightly faster rotating scroll to separate solids continuously under a strong centrifugal field. Clear oil rich liquid flows out through adjustable weir plates, while the heavier solid phase is conveyed by the scroll toward the conical end and discharged through wear protected nozzles. Because the operation is continuous, the machine matches the throughput of a full extraction line without operator intervention.

The contacting parts are made from stainless steel and the scroll flights are hard faced, giving long service life even when processing meals with abrasive mineral content. Discharge and overflow are fully enclosed, and the unit can be supplied with an explosion proof motor and vapour tight cover for safe operation in a solvent atmosphere.

• Continuous Separation: The bowl and scroll operate without stopping for desludging, providing steady clarifying capacity that matches continuous extraction throughput.
• High Separation Force: A bowl speed up to 3200 rpm generates a centrifugal force above 2200 G, driving even micron sized meal fines out of the miscella.
• Adjustable Overflow: Replaceable weir plates let the operator fine tune the separation line between oil clarity and solid dryness for different seeds and meals.
• Wear Protected Scroll: The scroll flights are hard faced with tungsten carbide, so abrasive meal particles do not shorten the life of the conveying element.
• Explosion Proof Option: Vapour tight covers and certified explosion proof motors can be specified for direct service inside a solvent bearing environment.
• Self Cleaning Discharge: The conical beach design keeps the solid discharge chute clear, reducing blockages and cleaning time between shifts.

The Crude Oil Decanter Centrifuge is widely used in edible oil solvent extraction plants to clarify miscella and to recover oil from press liquor and wastewater. It is equally at home in the oleochemical, animal rendering and fish meal industries, where fine solids and moisture must be removed from fat rich streams. Because it handles a variable feed, it also works well as a polishing separator downstream of traditional settling tanks.

The decanter centrifuge is shipped on a wooden pallet or in a steel frame with the bowl, scroll and bearings protected by rust proof film and the drive unit wrapped separately. All threaded holes and flanged faces are sealed for transit. We supply an operation and maintenance manual, spare wearing parts and commissioning support, and the machine carries a twelve month warranty against manufacturing defects.