ZHANGJIAGANG CITY PEONY MACHINERY CO.,LTD
| Installation Type | Horizontal |
| Phase Interface | Adjustable |
| Separation | Oil / Water / Solids |
| Application | Tank Bottom Sludge Oil Recovery |
| MOC | SS304 / SS316L / Duplex Steel |
| Capacity | Depends on Sludge Condition |
| Control System | PLC + VFD |
| Safety Design | Gas-Tight / Explosion-Proof Optional |
| Machine Type | Three-Phase Decanter Centrifuge |
| Packaging Details | Wooden packing |
| Delivery Time | 30days |
| Supply Ability | 5 sets/month |
| Wear Protection | Carbide / Ceramic Optional |
| Operation | Automatic Continuous |
| Model Number | PDC |
| Brand Name | Peony |
| Place of Origin | china |
| Certification | CE |
View Detail Information
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Product Specification
| Installation Type | Horizontal | Phase Interface | Adjustable |
| Separation | Oil / Water / Solids | Application | Tank Bottom Sludge Oil Recovery |
| MOC | SS304 / SS316L / Duplex Steel | Capacity | Depends on Sludge Condition |
| Control System | PLC + VFD | Safety Design | Gas-Tight / Explosion-Proof Optional |
| Machine Type | Three-Phase Decanter Centrifuge | Packaging Details | Wooden packing |
| Delivery Time | 30days | Supply Ability | 5 sets/month |
| Wear Protection | Carbide / Ceramic Optional | Operation | Automatic Continuous |
| Model Number | PDC | Brand Name | Peony |
| Place of Origin | china | Certification | CE |
| High Light | Stainless Steel Build horizontal decanter centrifuge ，Powered horizontal decanter centrifuge ，Advanced Control System horizontal decanter centrifuge | ||
The Three Phase Decanter Centrifuge for Tank Bottom Sludge Oil Recovery is designed to continuously separate recovered oil, water, and concentrated solids from sludge removed from crude-oil, fuel-oil, and refinery storage tanks.
Tank bottom sludge may contain recoverable hydrocarbons, water, sand, rust, scale, wax, asphaltenes, and other settled impurities. After suitable heating and conditioning, the three-phase decanter recovers the oil phase, reduces sludge volume, and prepares the separated water and solids for further treatment.
Wax, asphaltenes, and heavy hydrocarbons can make the sludge difficult to pump and separate.
Heating and controlled dilution may be used to improve fluidity before centrifugation.
Surfactants, fine solids, and aged hydrocarbons may form stable emulsions.
Demulsifier dosing, mixing, and retention time may be required to improve oil and water separation.
Sand, rust, scale, and catalyst fines can wear the feed zone, scroll, cone, and solids outlets.
Carbide tiles, ceramic liners, and replaceable discharge inserts can be installed in high-wear areas.
Oil, water, and solids content may vary between tanks and even during one tank-cleaning operation.
Adjustable bowl speed, differential speed, pond depth, and phase interfaces help maintain stable separation.
Tank sludge may contain volatile or flammable hydrocarbons.
Gas-tight construction, explosion-proof components, grounding, vapor collection, and nitrogen protection can be provided when required.
Peony provides integrated three-phase separation solutions for oil recovery, water separation, solids concentration, and sludge-volume reduction.
Tank Bottom Sludge
→ Coarse Screening
→ Heated Agitated Tank
→ Optional Dilution / Demulsifier Dosing
→ Three Phase Decanter Centrifuge
→ Recovered Oil + Separated Water + Concentrated Solids
Recovered Oil
→ Oil Collection Tank
→ Reprocessing / Refinery Return / Further Purification
Separated Water
→ Oily-Water Treatment / DAF / Biological Treatment
Concentrated Solids
→ Thermal Treatment / Landfarming / Disposal / Further Recovery
Screened and heated tank sludge enters the rotating bowl through a controlled feed pipe.
Agitation maintains a uniform feed, while heating and optional demulsifier dosing improve phase separation.
High centrifugal force moves sand, rust, scale, and other dense solids toward the bowl wall.
The solids form a concentrated layer inside the bowl.
The liquid phase separates according to density.
The lighter oil phase remains closer to the bowl center, while the heavier water phase forms an outer liquid layer.
The screw conveyor transports settled solids toward the conical end.
The concentrated sludge solids discharge continuously through protected solids outlets.
Recovered oil and separated water leave through independent outlets.
The oil can be returned for reprocessing, while the water is sent to further oily-water 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 |
Separates recoverable hydrocarbons from tank sludge and reduces oil loss.
Produces separate oil, water, and solids streams in one continuous machine.
Concentrated solids require less storage, transportation, and final treatment.
Heating, high-torque conveying, and wear protection support difficult tank-bottom materials.
Gas-tight and explosion-proof options support hydrocarbon-processing environments.
Please provide:
Recovery depends on the initial oil content, viscosity, temperature, emulsion stability, and solids characteristics. Sludge testing is recommended before performance confirmation.
It is often required for heavy, waxy, or highly viscous sludge. Heating reduces viscosity and improves oil-water separation.
It can separate conditioned emulsions, but highly stable sludge may require demulsifier dosing, heating, and adequate mixing time before centrifugation.
Dense solids are discharged continuously. Wear-resistant protection is recommended when the sludge contains abrasive mineral or metallic particles.
Possibly. Water, sediment, salt, and contaminant levels should be tested before the recovered oil is blended, reprocessed, or returned to storage.
Peony welcomes distributor and agent cooperation with refineries, oil terminals, tank-cleaning contractors, petroleum storage companies, hazardous-waste processors, and oily-sludge treatment partners.
We support partners with sludge testing, three-phase decanter selection, heating and demulsifier design, wear protection, gas-tight configuration, installation guidance, commissioning, spare parts, and after-sales service.
Send us your tank sludge data, including oil-water-solids content, viscosity, temperature, feed capacity, recovery target, and hazardous-area requirements. Our engineering team will recommend a suitable three-phase decanter centrifuge solution for tank bottom sludge oil recovery.
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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