ZHANGJIAGANG CITY PEONY MACHINERY CO.,LTD
| Solids Discharge | Continuous Scroll Discharge |
| Flocculant Dosing | Optional |
| Bearing | SKF/NSK or other famous brand |
| Separation Type | 2-Phase Solid-Liquid Separation |
| MOC | SS316L / Duplex Optional |
| Product Name | Red Mud Slurry Decanter Centrifuge |
| Wear Protection | TC / Ceramic / Hardfacing Optional |
| Alkaline Resistance | Enhanced Sealing Optional |
| Control System | PLC Automatic Control |
| Application | Red Mud Slurry Dewatering |
| Operation | Continuous Automatic |
| Drive System | Dual Motor with VFD |
| Payment Terms | TT,.LC,Western Union |
| Supply Ability | 60 sets per month |
| Delivery Time | 60-90days after receiving the payment |
| Packaging Details | Standard export packing, polywood, fumigated wood, filmed |
| Brand Name | Peony |
| Model Number | PDC |
| Certification | ISO9001& ISO14001 |
| Place of Origin | China |
View Detail Information
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Product Specification
| Solids Discharge | Continuous Scroll Discharge | Flocculant Dosing | Optional |
| Bearing | SKF/NSK or other famous brand | Separation Type | 2-Phase Solid-Liquid Separation |
| MOC | SS316L / Duplex Optional | Product Name | Red Mud Slurry Decanter Centrifuge |
| Wear Protection | TC / Ceramic / Hardfacing Optional | Alkaline Resistance | Enhanced Sealing Optional |
| Control System | PLC Automatic Control | Application | Red Mud Slurry Dewatering |
| Operation | Continuous Automatic | Drive System | Dual Motor with VFD |
| Payment Terms | TT,.LC,Western Union | Supply Ability | 60 sets per month |
| Delivery Time | 60-90days after receiving the payment | Packaging Details | Standard export packing, polywood, fumigated wood, filmed |
| Brand Name | Peony | Model Number | PDC |
| Certification | ISO9001& ISO14001 | Place of Origin | China |
| High Light | TA2 Decanter Centrifuge ，Bleaching Industry Decanter Centrifuge ，TA2 alloy titanium centrifuge | ||
The Decanter Centrifuge for Red Mud Slurry Dewatering is designed for continuous solid-liquid separation, red mud thickening, alkaline liquor recovery, and process-water clarification in alumina refining and bauxite-residue treatment systems.
Red mud slurry is typically dense, highly alkaline, abrasive, and variable in solids concentration. It may contain iron oxides, alumina, silica, titanium compounds, residual caustic liquor, sand, and fine mineral particles. The decanter centrifuge continuously separates and thickens the solids while recovering clarified liquor for washing, recycle, recovery, or further treatment.
Thickened red mud can be transferred to a filter press, belt filter, residue washing system, storage pond, dry-stacking section, or further dealkalization process.
Peony provides continuous solid-liquid separation for red mud thickening, wash-liquor recovery, and downstream residue handling.
Red Mud Washing / Settling Tank Underflow → Agitated Slurry Tank → Optional Flocculant Dosing → Decanter Centrifuge → Thickened Red Mud → Filter Press / Belt Filter / Dry Stacking / Storage
Clarified Alkaline Liquor → Wash Water Tank / Liquor Recovery / Further Treatment
Peony can provide:
Red mud slurry enters the rotating bowl through a controlled feed pipe.
An agitated buffer tank is normally recommended upstream to prevent settling, reduce solids fluctuation, and maintain stable feed conditions.
Inside the high-speed bowl, centrifugal force separates red mud solids from the alkaline liquid phase.
The dense mineral particles move outward and form a solids layer against the bowl wall, while clarified liquor remains closer to the center.
The internal screw conveyor rotates at a controlled differential speed relative to the bowl.
This movement transports settled red mud solids toward the conical end for continuous discharge.
The separated liquid leaves through the liquid outlet.
Depending on the plant process, it can be returned to residue washing, routed to caustic liquor recovery, transferred to a recycle-water tank, or sent for further treatment.
The concentrated red mud is discharged continuously from the solids outlet.
It can be transferred to a filter press, belt filter, storage area, dry-stacking section, residue washing stage, or disposal system.
| 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 |
Red mud slurry often contains residual alkaline liquor. Material selection, seals, piping, pumps, and downstream connections should be evaluated based on actual pH, temperature, chloride content, and chemical composition.
Iron-bearing minerals, silica, sand, titanium compounds, and other hard particles can cause accelerated wear. Wear-resistant protection should be selected according to particle size, solids concentration, and expected operating hours.
Red mud can be dense and may show variable settling behavior. Stable feed concentration is important for consistent throughput and solids discharge.
Flocculant may improve settling and clarified-liquor quality in some applications. Selection and dosage should be confirmed through slurry testing to avoid excessive chemical consumption or unstable solids discharge.
A decanter centrifuge is mainly used for continuous thickening and primary dewatering. For lower final moisture or dry-stacking duty, it is commonly combined with a filter press, belt filter, vacuum filter, or other final dewatering equipment.
Clarified liquid should be evaluated based on suspended solids, residual caustic, conductivity, dissolved salts, and the requirements of the next washing or recovery stage.
The decanter continuously thickens red mud slurry without batch interruption, making it suitable for high-volume refinery residue streams.
Red mud may contain hard mineral particles and sand. Wear protection can be added to the feed chamber, scroll flights, bowl cone, and solids discharge section.
Clarified liquid can be collected for wash-water reuse, caustic recovery, or further treatment, reducing liquid loss from the separation stage.
Bowl speed, differential speed, pond depth, and feed rate can be adjusted to manage changes in solids concentration, viscosity, particle size, and throughput.
The enclosed centrifuge design reduces slurry splashing, manual handling, and exposure to alkaline process liquid.
Please provide the following information for a suitable red mud slurry dewatering solution:
Yes. A decanter centrifuge is suitable for continuous red mud thickening and primary dewatering, particularly where slurry flow and solids concentration change during operation.
In many cases, yes. The clarified liquor may be reused in red mud washing, process-water recycle, or alkaline liquor recovery. Final reuse depends on suspended solids, caustic concentration, conductivity, and process requirements.
Usually yes. Red mud can contain abrasive mineral particles, sand, silica, and iron-rich solids. Wear protection for the scroll, feed zone, bowl cone, and solids outlet is generally recommended.
The decanter is mainly used for continuous thickening and primary dewatering. When lower final moisture or dry-stack residue is required, a filter press, belt filter, or vacuum filter may still be needed downstream.
Not always. It depends on particle size, settling behavior, solids concentration, clarified-liquor target, and required recovery rate. Slurry testing is recommended before confirming the dosing system.
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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