
The Decanter Centrifuge for Metal Powder Slurry Recovery is designed for continuous solid-liquid separation, metal powder recovery, slurry thickening, and process-liquid clarification.
It is suitable for metal powder washing, hydrometallurgy slurry, battery material process slurry, grinding and polishing wastewater, powder metallurgy wastewater, and fine metal particle recovery. The centrifuge separates suspended metal powders from the liquid phase continuously. Recovered solids can be sent to filtration, drying, storage, reuse, or further refining. Clarified liquid can be recycled to washing, grinding, process-water storage, or wastewater treatment.
| Process Requirement | Decanter Centrifuge Solution |
|---|---|
| Fine metal powder recovery | Continuous high-force separation |
| Valuable solids loss reduction | Thickened powder recovery for reuse |
| Variable slurry condition | Adjustable bowl speed and differential speed |
| Abrasive particles | Wear-resistant scroll and discharge protection |
| Corrosive liquid phase | SS316L / Duplex / special alloy optional |
| Clean and closed handling | Sealed feed and discharge configuration |
| Process-liquid recycle | Clarified liquid for reuse or treatment |
| Sensitive powder handling | Explosion-proof / inert-gas option if required |
Peony provides continuous solid-liquid separation for metal powder recovery, slurry thickening, and process-liquid recycle.
Metal Powder Washing / Grinding / Reaction / Classification → Slurry Tank → Optional Flocculant Dosing → Decanter Centrifuge → Thickened Metal Powder Solids → Filter Press / Dryer / Storage / Reuse
Clarified Liquid → Process Liquid Tank → Recycle to Washing, Grinding, or Further Treatment
Peony can provide:
Metal powder slurry enters the rotating bowl through a controlled feed pipe.
An agitated slurry tank is normally recommended upstream to prevent powder settling and maintain stable feed concentration.
Inside the high-speed rotating bowl, centrifugal force separates metal powder particles from the liquid phase.
The denser metal particles settle against the bowl wall, while clarified liquid remains closer to the center.
The internal screw conveyor rotates at a controlled differential speed relative to the bowl.
This movement transports settled metal powder solids toward the conical end for continuous discharge.
The separated liquid leaves through the liquid outlet.
It can be returned to washing, grinding, reaction, process-liquid recycle, or further wastewater treatment.
The concentrated metal powder solids are discharged continuously from the solids outlet.
Recovered material can be transferred to a filter press, vacuum filter, dryer, storage tank, reuse system, or further refining stage.

| 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 |
Different powders, such as nickel, cobalt, copper, iron, zinc, tungsten, stainless steel, or alloy powder, have different density, particle size, abrasion level, and chemical behavior.
Very fine metal powders may require slurry testing to confirm recovery rate, clarified-liquid quality, and suitable machine configuration.
pH, solvent content, chloride content, acid or alkali concentration, and temperature should be checked before selecting the bowl material, seals, and piping.
Some metal powders may be combustible, reactive, or sensitive when dry or exposed to air. Explosion-proof motors, sealed handling, nitrogen protection, or inert-gas configuration should be reviewed according to the plant safety standard.
The decanter is mainly used for continuous thickening and primary dewatering. If lower final moisture is required, it can be combined with a filter press, vacuum filter, dryer, or closed drying system.
The decanter continuously recovers metal powder solids from slurry, wash water, and process liquid, helping reduce product loss.
Metal powders usually have higher density than many mineral or organic solids. A decanter centrifuge can use centrifugal force to support continuous thickening and recovery.
A sealed feed and discharge design can reduce splashing, product exposure, and operator contact with process liquid.
Wear-resistant protection and corrosion-resistant material can be selected according to particle hardness, pH, solvent content, chloride level, and operating temperature.
Clarified liquid can be reused in washing, grinding, reaction, or slurry preparation after suitable quality checking.
The decanter can be connected with slurry tanks, pumps, dosing systems, filter presses, dryers, storage tanks, and wastewater treatment systems.
Please provide the following information for a suitable metal powder slurry recovery solution:
Yes. It can continuously recover fine metal powder from slurry and process liquid. For very fine particles, separation testing is recommended before final selection.
Yes. A sealed feed and discharge configuration can be considered when the process requires cleaner handling, reduced exposure, or solvent-containing liquid control.
It depends on the metal powder type, solvent, operating environment, and plant safety standard. For combustible or reactive powder processes, explosion-proof and inert-gas options should be reviewed.
Yes. Clarified liquid can often be returned to washing, grinding, reaction, or slurry preparation. Further polishing treatment may be required for stricter reuse quality.
The decanter is mainly used for continuous thickening and primary dewatering. A filter press or dryer may still be needed when lower final moisture is required.
Peony welcomes distributor and agent cooperation with metal powder manufacturers, powder metallurgy plants, battery material producers, hydrometallurgy companies, polishing and grinding process suppliers, wastewater treatment companies, and industrial separation partners.
We support partners with slurry testing, decanter centrifuge selection, sealed configuration, wear-resistant design, corrosion-resistant material selection, process-liquid recycle integration, installation guidance, commissioning support, spare parts, and after-sales service.
Send us your metal powder type, particle size, solids concentration, liquid composition, required capacity, recovery target, clarified-liquid requirement, safety requirement, and downstream handling arrangement. Our engineering team will recommend a suitable decanter centrifuge solution for your metal powder slurry recovery process.