High Anti-Abrasion Performance Two Phase Decanter Centrifuge for
Mining Tailings and Sand Washing
Description
Mining Tailings & Sand Washing Decanter is designed for continuous
solid-liquid separation of mine tailings, sand washing wastewater,
stone powder slurry, and mineral fine particle slurry.
For most mining and building material slurry applications, the
recommended configuration is a two-phase decanter centrifuge
because the main target is to separate abrasive mineral solids from
water and improve clarified water reuse.
Best-Fit Applications
- Coal washing wastewater
- Ore washing tailings
- Sand washing wastewater
- Stone cutting powder slurry
- Glass edging wastewater slurry
- Ceramic slurry
- Kaolin slurry
- Calcium carbonate slurry
Typical materials include coal slime, tailings, stone powder, fine mineral particles, clay
slurry, and process water.
Why Two-Phase is Recommended
- The feed mainly contains solid mineral particles + water.
- It is suitable for high-solid and fine-particle slurry dewatering.
- It helps recover clarified water for reuse and reduce tailings pond
load.
When Another Configuration May Be Considered
- If the slurry contains oil or floating organics.
- If large stones or coarse sand enter without screening.
- If ultra-clear water is required, downstream filtration may still
be needed.
How the Decanter Centrifuge Works in This Application
- Mining tailings or sand washing slurry enters the rotating bowl
through the feed pipe.
- Under centrifugal force, heavier mineral particles move outward and
form a sediment layer.
- The screw conveyor continuously pushes the separated solids toward
the discharge end.
- The clarified liquid phase is discharged through the liquid outlet.
- The discharged solids are collected for stacking, backfilling,
drying, or further disposal.
Technical Parameter
| 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 |
Typical Feed Conditions and Design Considerations
| Item | Typical Range / What to Confirm |
|---|
| Feed material | Coal slime, tailings slurry, sand washing wastewater, stone powder
slurry |
| Solids content | Usually 5–30% |
| Oil content | Usually not applicable |
| Particle characteristics | Fine, abrasive, mineral-based, sometimes high-density |
| Viscosity | Low to medium; may increase with clay content |
| Temperature | Usually 10–60°C |
| Abrasion risk | High; wear protection is strongly recommended |
| Capacity requirement | Confirm by m³/h or tons/day |
| Target result | Slurry dewatering, clarified water reuse, lower tailings volume |
Main Advantages in Mining Industrial
- Continuous automatic operation
- Strong abrasion-resistant structure
- Suitable for fine mineral slurry dewatering
- Reduced tailings and sludge volume
- Higher clarified water recovery
- Lower tailings pond or settling tank load
- Compact footprint
- Designed for long-period continuous operation
Expected Results
With proper thickening, slurry conditioning, grit removal, and
stable feeding, this decanter centrifuge can typically achieve:
- 80–95% solid capture rate
- 70–90% suspended solids reduction
- 45–70% cake solids content
- 30–55% final cake moisture
- 40–70% slurry volume reduction
- 60–85% clarified water reuse rate
- 16–24 hours/day continuous operation
Actual results depend on particle size, clay content, feed
concentration, abrasion level, polymer dosing, and operating
settings.
FAQ
Is this machine suitable for sand washing wastewater?
Yes. It is suitable for sand washing wastewater, fine sand slurry,
stone powder slurry, and mineral fine particle wastewater.
Is wear protection necessary?
Yes. For mining tailings and sand washing slurry, wear-resistant
protection is strongly recommended because the feed usually
contains abrasive mineral particles.
Is polymer dosing required?
It is optional. Polymer dosing can improve fine particle capture
and cake formation, especially when the slurry contains clay or
very fine suspended solids.
Can the clarified water be reused?
Yes. In many projects, the clarified liquid can be returned to the
washing or processing system after separation, depending on the
required water quality.
What information is needed for model selection?
Please provide feed material, capacity, solids content, particle
size, clay content, abrasion level, target cake moisture, target
water reuse rate, and operating hours.
Send Us Your Project Data
To recommend a suitable model, please share:
- Feed material name
- Capacity requirement
- Solids content
- Particle size distribution
- Clay or fine particle content
- Abrasion condition
- Target cake moisture
- Target clarified water reuse rate
- Operating hours
- Wear protection requirement
- Site voltage or control preference
Our engineering team can suggest a suitable two-phase decanter centrifuge configuration for your mining tailings or sand washing wastewater project.
Contact Peony for Partnership
If you have local customer channels or project resources in mining
tailings, sand washing wastewater, stone powder slurry, glass
edging wastewater, ceramic slurry, kaolin slurry, or calcium
carbonate slurry treatment, Peony welcomes cooperation.
Send us your target market, customer type, project background, and
cooperation proposal. Our team will evaluate the opportunity and
provide technical and commercial support for suitable projects.
