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| Categories | Decanter Centrifuge |
|---|---|
| Operation: | Continuous |
| Wetted MOC: | SS316L, duplex stainless steel, titanium or customized alloy |
| Application: | TiO₂ slurry washing, thickening and dewatering |
| Place of Origin: | China |
| Brand Name: | Peony |
| Certification: | ISO |
| Model Number: | PDC |
| MOQ: | 1 set |
| Price: | USD20000-138000/SET FOB Shanghai |
| Packaging Details: | Standard export package, polywood, fumigated wood, filmed |
| Delivery Time: | 75-90 days after down payment |
| Payment Terms: | TT,.LC,Western Union |
| Supply Ability: | 60 sets per month |
| Suitable Process: | Sulfate-process or chloride-process TiO₂ slurry |
| Type: | Horizontal Decanter Centrifuge |
| Washing Configuration: | Reslurry washing or multi-stage washing optional |
| Control System: | PLC and VFD control |
| Separation Type: | Two-phase solid-liquid separation |
| Solids Discharge: | Continuous screw conveyor discharge |
| Wash Liquor Handling: | Recycle, recovery or wastewater treatment |
| Product Name: | Decanter Centrifuge for Titanium Dioxide Slurry Washing and Dewatering |
| Differential Speed: | VFD adjustable |
| Company Info. |
| ZHANGJIAGANG CITY PEONY MACHINERY CO.,LTD |
| Verified Supplier |
| View Contact Details |
| Product List |
The Peony Decanter Centrifuge for Titanium Dioxide Slurry Washing and Dewatering is designed for the continuous thickening, washing-stage separation, and recovery of TiO₂ slurry from pigment production, surface treatment, washing, and wastewater recovery processes.
Titanium dioxide slurry often contains fine pigment particles, residual acids, soluble salts, treatment chemicals, or wash liquor carried over from upstream processing. The decanter centrifuge separates the TiO₂ solids from the liquid phase continuously, allowing the slurry to be thickened before further washing, filtration, drying, coating, or milling.
This configuration is suitable for continuous production lines where stable solids recovery, wash-liquid control, reduced slurry volume, and process-water reuse are important.
Peony provides the continuous solid-liquid separation section for titanium dioxide washing and thickening processes.
TiO₂ Slurry → Dilution Wash / Reslurry Tank → Decanter Centrifuge → Wash Liquor Collection → Optional Second Washing Stage → Thickened TiO₂ Slurry → Filter Press / Dryer / Surface Treatment / Milling
For applications requiring lower soluble-salt carryover, a multi-stage washing arrangement can be used:
TiO₂ Slurry → Wash Tank → Decanter 1 → Reslurry Tank → Decanter 2 → Final Thickened TiO₂ → Filter Press / Dryer
The separated liquid can be returned to an upstream washing stage, sent to process-water treatment, or discharged through a controlled wastewater circuit.
Peony can provide:
Titanium dioxide slurry enters an agitated buffer tank or washing tank before centrifugation.
Where washing is required, fresh water or recycled wash liquid is added to dilute residual soluble salts, acids, or impurities carried with the pigment slurry.
The conditioned slurry enters the rotating bowl through a controlled feed pipe.
Stable feed concentration is important because TiO₂ slurry can be fine, dense, and sensitive to changes in viscosity or solids content.
Inside the high-speed rotating bowl, centrifugal force separates titanium dioxide solids from the liquid phase.
TiO₂ particles settle against the bowl wall, while the wash liquor or clarified liquid forms the inner layer.
The internal screw conveyor rotates at a controlled differential speed relative to the bowl.
This transports the settled TiO₂ solids toward the conical end for continuous discharge.
The separated liquid leaves through the liquid outlet.
It can be reused in an upstream washing stage, returned to a process-water tank, sent to further washing, or routed to wastewater treatment.
The concentrated titanium dioxide solids are discharged continuously from the solids outlet.
The discharged solids can be sent to a second washing stage, filter press, dryer, surface-treatment process, or pigment milling 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 |
Titanium dioxide particles are fine and dense. Particle-size distribution, agglomeration condition, and slurry dispersion behavior directly affect separation performance.
The required washing stages depend on the amount of residual chloride, sulfate, acid, alkali, or soluble impurities remaining in the TiO₂ slurry.
Material selection should consider pH, chloride concentration, sulfuric acid residue, temperature, oxidizing conditions, and cleaning chemicals.
A stable solids concentration improves separation consistency. Very dilute slurry may require more wash stages, higher hydraulic capacity, or feed conditioning.
A decanter centrifuge is generally used for thickening and primary dewatering. For lower final moisture, TiO₂ slurry is commonly sent to a filter press, vacuum filter, spray dryer, flash dryer, or other drying equipment.
For high-grade pigment applications, the washing system should be designed around the required impurity limit rather than centrifuge capacity alone. A staged reslurry and separation arrangement may be necessary.
The centrifuge continuously reduces slurry volume and concentrates titanium dioxide solids before final filtration or drying.
When combined with reslurry tanks, the decanter can support one-stage or multi-stage washing to reduce soluble salt, acid, or wash-liquor carryover.
The decanter helps recover fine TiO₂ particles from dilute wash streams or process water, reducing pigment loss.
Bowl speed, differential speed, pond depth, and feed rate can be adjusted to balance solids recovery, liquid clarity, handling capacity, and discharged solids concentration.
Wetted parts can be selected according to slurry chemistry, acid content, chloride concentration, sulfate content, operating temperature, and cleaning requirement.
Wear-resistant protection can be applied to the feed zone, scroll flights, bowl cone, and solids discharge section when required.
To recommend a suitable Titanium Dioxide Slurry Washing and Dewatering solution, please provide:
A decanter centrifuge mainly performs continuous sedimentation and dewatering. For washing, TiO₂ slurry is normally mixed with wash water in an upstream reslurry or dilution tank before entering the centrifuge.
Yes. A washing and reslurry system can reduce soluble salt carryover. The final result depends on wash-water ratio, number of washing stages, mixing efficiency, and separation performance.
It depends on the required product purity and impurity level. For lower residual salt or acid targets, a two-stage or multi-stage washing arrangement may be required.
Yes. Depending on its chemistry, the separated wash liquor can be reused in an upstream wash stage, returned to a process-water tank, or sent to wastewater treatment.
Often yes. The proper wetted material depends on pH, chloride or sulfate concentration, temperature, acid content, oxidizing conditions, and cleaning chemicals. SS316L, duplex stainless steel, titanium, or customized alloys may be considered.
Peony welcomes distributor and agent cooperation with titanium dioxide producers, pigment manufacturers, chemical process contractors, mineral processing plants, wastewater treatment companies, and industrial separation partners.
We support partners with TiO₂ slurry testing, decanter centrifuge selection, washing-stage design, corrosion-resistant material configuration, feed and recycle system integration, installation guidance, commissioning support, spare parts, and after-sales service.
Send us your TiO₂ process route, slurry composition, particle size, solids concentration, wash requirement, impurity target, required capacity, material requirement, and downstream handling arrangement. Our engineering team will recommend a suitable Decanter Centrifuge solution for titanium dioxide slurry washing and dewatering.
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