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420mm industrial decanter centrifuge
,3300RPM solid bowl decanter centrifuge
,Juice industrial decanter centrifuge
The Three Phase Decanter Centrifuge for Corn Germ Oil Recovery continuously separates recovered corn germ oil, aqueous liquid, and concentrated solids from conditioned process slurry or oil sludge.
It is suitable for corn wet-milling plants, germ-oil extraction facilities, crude corn oil clarification, degumming sludge treatment, and oil recovery from tank residues.
- Corn germ pressing residue treatment
- Crude corn germ oil clarification
- Germ slurry oil recovery
- Degumming sludge separation
- Tank-bottom oil recovery
- Corn meal and fiber-fines removal
- Filter residue treatment
- Oily process-water pretreatment
- Oil refinery sludge reduction
- Pretreatment before oil polishing
Fine Germ and Meal Solids
Germ particles, meal fines, fiber, and filter aid may remain suspended in the oil.
Screening and stable feeding help improve solids removal.
Gum and Protein Emulsions
Phospholipids, proteins, and fine solids can stabilize the oil-water interface.
Heating or suitable conditioning may be required before separation.
Variable Feed Composition
Oil, water, and solids ratios may change between pressing, extraction, storage, and refining stages.
Adjustable speeds and phase-interface control help maintain stable operation.
Oil Loss in Solids
Incorrect operating settings may increase residual oil in the discharged solids.
Feed rate, temperature, bowl speed, and differential speed should be optimized.
Food-Grade Requirements
Wetted parts, seals, surface finish, and cleaning systems should meet edible-oil processing requirements.
Corn Germ Oil Recovery Solution
Corn Germ Slurry / Oil Sludge
→ Screening
→ Heated Feed Tank
→ Three Phase Decanter
→ Oil + Water + Solids
Recovered Oil → Filtration / Refining
Water Phase → Further Treatment
Solids → Recovery / Disposal
Peony Can Provide
- Feed testing and selection
- Heated tank and feed pump
- Adjustable phase interface
- Food-grade wetted parts
- CIP cleaning
- PLC and dual-VFD control
How the Decanter Centrifuge Works
1. Conditioned Feed
Screened and conditioned corn germ slurry or oil sludge enters the rotating bowl.
Agitation maintains uniform temperature and solids concentration.
2. Solids Sedimentation
Centrifugal force moves germ fines, fiber, meal particles, and dense impurities toward the bowl wall.
A concentrated solids layer forms.
3. Oil-Water Separation
The lighter corn germ oil remains closer to the bowl center.
The heavier aqueous phase forms a separate outer liquid layer.
4. Continuous Solids Conveying
The screw conveyor transports settled solids toward the conical discharge end.
Concentrated solids discharge continuously.
5. Three-Phase Discharge
Recovered oil and aqueous liquid leave through separate outlets.
The solids discharge continuously for recovery or further treatment.
| Model | Diameter (mm) | Length (mm) | Length-to-diameter rate | G force | Max solid discharge (m³/h) | Weight (kg) | Dimension (L*W*H) (mm) |
|---|---|---|---|---|---|---|---|
| PDC-10 | 250 | 1000 | 4 | 4080 | 0.4 | 1000 | 2410*800*1080 |
| PDC-12 | 4200 | 1350 | 4 | 3500 | 0.6 | 1200 | 2610*800*1080 |
| PDC-12 | 4200 | 1350 | 4.5 | 3180 | 1.2 | 1800 | 3495*840*1180 |
| PDC-18 | 4000 | 1600 | 4.5 | 3180 | 1.2 | 3200 | 3497*1020*1385 |
| PDC-18 | 450 | 2150 | 4 | 2500 | 2 | 3800 | 4447*1080*1385 |
| PDC-20 | 400 | 2250 | 4.5 | 2500 | 3.5 | 4000 | 4580*1140*1470 |
| PDC-21 | 530 | 2280 | 4.3 | 2500 | 5 | 5000 | 4924*1170*1540 |
| PDC-26 | 655 | 2800 | 4.3 | 2270 | 8 | 7000 | 4300*1900*1350 |
Main Advantages
Improved Corn Germ Oil Yield
Recovers oil from process slurry, sludge, and tank residues.
Fine-Solids Removal
Separates germ fines, meal particles, fiber, gums, and filter residues.
Continuous Three-Phase Separation
Produces separate oil, aqueous liquid, and concentrated solids streams.
Reduced Oil Loss
Adjustable operating parameters help minimize oil remaining in water and solids.
Food-Grade Design
Sanitary materials and CIP options support edible-oil production.
Please provide:
- Feed source
- Oil, water, and solids percentages
- Temperature and viscosity
- Particle size
- Required capacity
- Oil-quality target
Can the centrifuge recover oil from corn germ pressing residues?
Yes. The feed should first be screened and conditioned to maintain stable flow and solids concentration.
Can it treat crude corn germ oil tank sludge?
Yes. It can recover oil while separating water, germ fines, gums, and sediment.
How can oil loss in discharged solids be reduced?
Stable feed temperature, suitable differential speed, correct phase interface, and controlled throughput help reduce oil loss.
Can it separate gum-rich corn oil sludge?
Yes, but highly stable emulsions may require heating, pH adjustment, or other conditioning before centrifugation.
Can recovered oil enter refining directly?
Possibly. Moisture, phosphorus, solids, free fatty acids, and color should be checked before further refining.
Peony welcomes cooperation with corn wet-milling plants, corn germ oil producers, edible-oil refineries, engineering contractors, and equipment distributors.
Send us your feed composition, temperature, capacity, recovery target, and downstream process. Our engineering team will recommend a suitable three-phase decanter centrifuge solution.
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