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centrisys decanter centrifuge
,solid liquid centrifuge
The Decanter Centrifuge for Lithium Iron Phosphate Slurry Recovery is designed for continuous solid-liquid separation, LFP powder recovery, slurry thickening, and process-liquid clarification.
It is suitable for lithium iron phosphate production, iron phosphate precursor processing, washing slurry, grinding and classification slurry, precipitation slurry, and battery-material wastewater treatment.
The centrifuge separates LFP particles, iron phosphate solids, carbon-containing fines, metal-containing residues, and suspended impurities from the liquid phase.
- Lithium iron phosphate slurry recovery
- LFP washing-water clarification
- Iron phosphate precursor slurry thickening
- Grinding and classification slurry treatment
- Fine LFP powder recovery
- Filter press feed thickening
- Process-water recycling
- Battery material wastewater pretreatment
- Off-spec material recovery
- Black mass processing residue treatment
| Process Requirement | Decanter Centrifuge Solution |
|---|---|
| Valuable LFP recovery | Continuous high-force separation |
| Fine particle capture | Adjustable bowl speed and optional dosing |
| Variable slurry concentration | Adjustable differential speed and feed rate |
| Stable thickening | Controlled pond depth and solids conveying |
| Product purity control | Suitable wetted and wear-resistant materials |
| Lower filtration load | Pre-thickening before filter press or dryer |
| Process-water recycling | Clarified liquid for reuse or treatment |
| Automatic operation | PLC and VFD-controlled continuous running |
Lithium Iron Phosphate Slurry Recovery Solution
Peony provides continuous separation solutions for LFP powder recovery, slurry thickening, process-water clarification, and downstream filtration preparation.
LFP Washing / Grinding / Classification / Precipitation
→ Agitated Slurry Tank
→ Optional Conditioning or Flocculant Dosing
→ Decanter Centrifuge
→ Thickened LFP Solids
→ Filter Press / Dryer / Reprocessing / Storage
Clarified Liquid
→ Process-Water Tank
→ Recycle / Polishing Filtration / Further Treatment
Peony Can Provide
- LFP slurry testing and centrifuge selection
- Agitated slurry buffer tank
- Controlled feed pump
- Optional dosing and mixing system
- Adjustable bowl and differential speed
- Pond-depth control
- Wear-resistant internal components
- Contamination-control configuration
- Clarified-liquid recycle connection
- PLC and VFD control system
- Connection to filter press or dryer
How the Decanter Centrifuge Works
1. LFP Slurry Feeding
Lithium iron phosphate slurry enters the rotating bowl through a controlled feed pipe.
An agitated tank helps prevent particle settling and maintains a stable feed concentration.
2. Centrifugal Sedimentation
High-speed rotation separates LFP particles from the liquid phase.
The denser solids move outward and form a layer against the bowl wall, while clarified liquid remains closer to the center.
3. Continuous Solids Conveying
The internal screw conveyor rotates at a controlled differential speed.
It continuously transports settled solids toward the conical end for further dewatering.
4. Clarified Liquid Discharge
The separated liquid leaves through the liquid outlet.
It can be returned to washing or slurry preparation, sent to polishing filtration, or transferred to further treatment.
5. Thickened LFP Solids Discharge
Concentrated LFP solids are discharged continuously.
The recovered solids can be sent to a filter press, dryer, reprocessing system, or storage tank.
| 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 |
Particle Size
Fine LFP particles may remain suspended for a long time. Particle-size distribution and settling tests should be checked before selection.
Slurry Concentration and Viscosity
High solids loading or viscosity may reduce throughput. Stable feeding is important for consistent separation.
Process-Liquid Composition
The liquid may contain water, lithium salts, iron salts, phosphates, acids, alkalis, dispersants, or binders. The complete composition should be provided.
Product Purity
LFP production may have strict contamination limits. Wetted materials and wear-resistant components should be selected to reduce metal contamination.
Flocculant Compatibility
Flocculant may improve fine-particle capture, but it should not affect product reuse or downstream processing.
High LFP Recovery
High centrifugal force continuously recovers valuable lithium iron phosphate particles and reduces material loss.
Stable Slurry Thickening
Adjustable bowl speed, differential speed, pond depth, and feed rate provide stable operation.
Process-Water Recycling
Clarified liquid can be returned to washing or slurry preparation when it meets the required quality.
Purity and Wear Control
Suitable wetted materials and wear-resistant components support reliable battery-material processing.
Please provide:
- Particle size and solids concentration
- Slurry density, viscosity, pH, and temperature
- Liquid composition and purity requirement
- Required capacity and recovery target
- Downstream filter press or dryer
- Material and wear-protection requirements
Can a decanter centrifuge recover fine LFP particles?
Yes. Separation depends on particle size, density, slurry stability, and liquid viscosity. Very fine particles may require conditioning or polishing filtration.
Can it process iron phosphate precursor slurry?
Yes. The centrifuge can be used for iron phosphate slurry thickening and washing-liquid clarification.
Can clarified liquid be recycled?
Yes. It can often be reused in washing or slurry preparation after confirming the liquid quality.
Is flocculant dosing required?
Not always. It depends on particle size, slurry concentration, settling behavior, and clarified-liquid requirements.
Can it replace a filter press?
The decanter is mainly used for continuous recovery and pre-thickening. A filter press or dryer may still be required for lower final moisture.
Peony welcomes cooperation with LFP manufacturers, iron phosphate producers, battery material plants, lithium recycling companies, engineering contractors, wastewater treatment companies, distributors, and industrial separation partners.
We support partners with slurry testing, centrifuge selection, wear-resistant configuration, contamination-control design, process-water recycling, installation guidance, commissioning, spare parts, and after-sales service.
Send us your LFP slurry information, including particle size, solids concentration, liquid composition, required capacity, recovery target, purity requirement, and downstream arrangement. Our engineering team will recommend a suitable decanter centrifuge solution for your lithium iron phosphate slurry recovery process.
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