ZHANGJIAGANG CITY PEONY MACHINERY CO.,LTD
| Operation | Automatic continuous |
| Phase Interface | Adjustable |
| Separation | Oil / Water / Solids |
| Application | Crude Oil Sludge Treatment |
| MOC | SS304 / SS316L / Duplex Steel |
| Safety Design | Gas-Tight / Explosion-Proof Optional |
| Structure | Horizontal |
| Packaging Details | Standard wooden case |
| Delivery Time | 60-90days after receiving the down payment |
| Payment Terms | TT,.LC,Western Union |
| Supply Ability | 60 sets per month |
| Speed Control | PLC + Dual VFD |
| Wear Protection | Carbide / Ceramic Optional |
| Product Name | Three Phase Decanter Centrifuge |
| Feed Type | Crude Oil Sludge |
| Heating | Optional |
| Place of Origin | China |
| Brand Name | Peony |
| Certification | ISO9001& ISO14001 |
| Model Number | PDC |
View Detail Information
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Product Specification
| Operation | Automatic continuous | Phase Interface | Adjustable |
| Separation | Oil / Water / Solids | Application | Crude Oil Sludge Treatment |
| MOC | SS304 / SS316L / Duplex Steel | Safety Design | Gas-Tight / Explosion-Proof Optional |
| Structure | Horizontal | Packaging Details | Standard wooden case |
| Delivery Time | 60-90days after receiving the down payment | Payment Terms | TT,.LC,Western Union |
| Supply Ability | 60 sets per month | Speed Control | PLC + Dual VFD |
| Wear Protection | Carbide / Ceramic Optional | Product Name | Three Phase Decanter Centrifuge |
| Feed Type | Crude Oil Sludge | Heating | Optional |
| Place of Origin | China | Brand Name | Peony |
| Certification | ISO9001& ISO14001 | Model Number | PDC |
| High Light | drilling mud decanter centrifuge ， solid liquid centrifuge | ||
The Three Phase Decanter Centrifuge for Crude Oil Sludge Treatment continuously separates recoverable crude oil, water, and concentrated solids from oily sludge.
It is suitable for tank-bottom sludge, oil ponds, refinery lagoons, API separator sludge, and crude-oil storage or cleaning residues. Three-phase decanters separate two immiscible liquids and suspended solids in one continuous process.
Heavy hydrocarbons, wax, and asphaltenes may reduce pumpability and separation efficiency. Controlled heating or dilution can improve fluidity before centrifugation.
Fine solids and surface-active compounds may stabilize the oil-water emulsion. Heating, demulsifier dosing, and sufficient mixing time may be required.
Sand, rust, scale, coke, and mineral particles can wear the feed zone, scroll flights, bowl cone, and solids outlets. Carbide, ceramic, or hard-facing protection can be selected.
Oil, water, and solids ratios may change during tank cleaning or between different sludge sources. Adjustable feed rate, bowl speed, differential speed, and liquid interface help maintain stable operation.
Crude-oil sludge may contain salts, sulfur compounds, chemicals, and flammable hydrocarbons. Wetted materials, seals, ventilation, explosion protection, and optional nitrogen blanketing should match the actual feed conditions.
Peony provides continuous solutions for crude-oil recovery, water separation, solids concentration, and sludge-volume reduction.
Crude Oil Sludge
→ Coarse Screening
→ Heated Agitated Tank
→ Optional Dilution / Demulsifier
→ Three Phase Decanter Centrifuge
→ Recovered Oil + Separated Water + Concentrated Solids
Recovered Oil
→ Oil Tank
→ Reprocessing / Blending / Further Purification
Separated Water
→ API Separator / DAF / Biological Treatment
Concentrated Solids
→ Thermal Treatment / Further Dewatering / Disposal
Three-phase decanter systems are commonly used for oily-sludge treatment because they recover oil while simultaneously separating water and solids.
Screened and heated crude-oil sludge enters the rotating bowl through a controlled feed pipe.
Agitation maintains a uniform feed, while optional heating and demulsifier dosing improve separation.
Centrifugal force moves sand, rust, scale, and other dense solids toward the bowl wall.
The solids form a concentrated outer layer.
The lighter crude-oil phase remains closer to the bowl center.
The heavier water phase forms a separate outer liquid layer.
The screw conveyor transports settled solids toward the conical discharge end.
Concentrated solids discharge continuously through protected outlets.
Recovered oil and separated water leave through independent liquid outlets.
The concentrated solids are discharged continuously for further treatment or disposal. This is the basic operating principle of a three-phase separating decanter.
| 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 |
Recovers hydrocarbons from sludge and reduces oil loss before disposal or further treatment.
Heating and high-torque conveying support viscous sludge containing wax, asphaltenes, and heavy oil.
Wear-protected components handle abrasive sand, scale, rust, and tank sediment.
Adjustable bowl speed, differential speed, and phase interface adapt to changing oil, water, and solids ratios.
Removing oil and solids reduces the volume sent to thermal treatment, wastewater treatment, or hazardous-waste disposal.
Please provide:
It is commonly recommended for waxy or high-viscosity sludge. The required temperature depends on the crude-oil properties and plant safety limits.
Yes, after coarse foreign materials are removed. Wear-resistant protection is recommended for highly abrasive feeds.
Stable emulsions may require heating, demulsifier dosing, dilution, and controlled mixing before centrifugation.
Not automatically. Water, sediment, salt, and contaminant levels should be tested before blending or reprocessing.
Usually not. Residual oil, suspended solids, COD, salts, and chemicals may require further oily-water treatment.
Peony welcomes cooperation with refineries, crude-oil storage terminals, tank-cleaning contractors, oil-sludge processors, hazardous-waste companies, and environmental engineering partners.
Send us your sludge composition, viscosity, temperature, required capacity, recovery target, and downstream arrangement. Our engineering team will recommend a suitable three-phase decanter centrifuge solution.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Trading Company,Seller,Other
Year Established:
1990
Total Annual:
35Million -40Million
Employee Number:
50~100
Ecer Certification：
Verified Supplier
Basic Information Zhangjiagang City Peony Machinery Co., Ltd., founded as a special producing enterprise of separating equipment in 2008, is the well-known manufacturer and service provider of separation and filtration in China. Peony dedicated to solving the solid-liquid, liquid-liquid separation p... Basic Information Zhangjiagang City Peony Machinery Co., Ltd., founded as a special producing enterprise of separating equipment in 2008, is the well-known manufacturer and service provider of separation and filtration in China. Peony dedicated to solving the solid-liquid, liquid-liquid separation p...
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