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centrisys decanter centrifuge
,drilling mud decanter centrifuge
The Decanter Centrifuge for Glass Polishing Slurry Recovery is designed for continuous solid-liquid separation, polishing powder recovery, slurry thickening, and process-water clarification.
It is suitable for glass polishing wastewater, optical glass processing, flat glass polishing, LCD glass processing, lens polishing, photovoltaic glass, ceramic glass, and glass-finishing process water. The centrifuge can recover fine polishing solids such as cerium oxide, alumina, silica fines, glass powder, and other suspended particles from polishing slurry.
- Glass polishing slurry recovery
- Cerium oxide polishing powder recovery
- Alumina polishing slurry thickening
- Optical glass polishing wastewater treatment
- Flat glass and photovoltaic glass process-water clarification
- LCD glass polishing slurry treatment
- Lens polishing wastewater solids recovery
- Glass fines and suspended solids removal
- Filter press feed thickening
- Process-water recycle in glass processing plants
| Process Requirement | Decanter Centrifuge Solution |
|---|---|
| Fine polishing powder recovery | Continuous high-force separation |
| Process-water recycle | Clarified liquid for reuse or further treatment |
| Variable slurry concentration | Adjustable bowl speed and differential speed |
| Abrasive glass fines | Wear-resistant scroll and discharge protection |
| Lower wastewater load | Thickened slurry before filter press or disposal |
| Reduced material loss | Recovery of valuable polishing powder |
| Automatic operation | PLC-controlled continuous running |
Peony provides continuous solid-liquid separation for glass polishing slurry recovery, polishing-powder thickening, and process-water recycle.
Glass Polishing / Grinding → Slurry Collection Tank → Optional Flocculant Dosing → Decanter Centrifuge → Thickened Polishing Solids → Filter Press / Dryer / Recovery / Disposal
Clarified Liquid → Process Water Tank → Recycle to Polishing or Further Treatment
Peony can provide:
- Decanter centrifuge selected according to polishing powder type and slurry condition
- Agitated slurry buffer tank for stable feeding
- Controlled feed pump and flow regulation system
- Optional flocculant dosing and mixing system
- Adjustable differential speed and pond depth control
- Wear-resistant scroll, feed zone, and solids-discharge configuration
- Clarified liquid collection and recycle connection
- PLC and VFD automatic control system
- Connection to filter press, dryer, polishing-water tank, or wastewater treatment system
How the Decanter Centrifuge Works
1. Polishing Slurry Feeding
Glass polishing slurry enters the rotating bowl through a controlled feed pipe.
An agitated slurry tank is normally recommended upstream to prevent solids settling and maintain stable feed concentration.
2. Centrifugal Sedimentation
Inside the high-speed rotating bowl, centrifugal force separates polishing powder and glass fines from the liquid phase.
The heavier fine solids settle 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 relative to the bowl.
This movement transports settled polishing solids toward the conical end for continuous discharge.
4. Clarified Liquid Discharge
The separated liquid leaves through the liquid outlet.
It can be returned to the polishing-water circulation system, transferred to a recycle-water tank, or sent to further clarification and wastewater treatment.
5. Thickened Polishing Solids Discharge
The concentrated polishing powder, glass fines, and sludge are discharged continuously from the solids outlet.
Recovered solids can be sent to a filter press, dryer, polishing-powder recovery system, storage tank, or disposal section.
| 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 |
Polishing Powder Type
Different polishing materials such as cerium oxide, alumina, silica, or mixed glass fines have different density, particle size, and settling behavior.
Fine Particle Recovery
Very fine polishing powder may remain suspended in water. Slurry testing is recommended when high recovery or strict clarified-water quality is required.
Slurry Concentration and Viscosity
High solids concentration or high viscosity may reduce separation capacity. Stable feeding helps maintain consistent operation.
Abrasion Level
Glass fines and polishing media can cause wear. Wear protection should be selected according to particle hardness, solids concentration, and operating hours.
Water Reuse Requirement
If clarified water will be reused directly in polishing, the suspended-solids level, turbidity, pH, conductivity, and residual additives should be checked.
Upstream Screening
Large glass fragments or coarse particles should be removed by screening before entering the decanter centrifuge.
Continuous Polishing Powder Recovery
The decanter continuously recovers fine polishing solids from glass polishing slurry and process water, reducing material loss and wastewater load.
Process-Water Recycle
Clarified liquid can be reused in polishing, rinsing, or slurry preparation after suitable quality checking.
Wear-Resistant Configuration
Glass fines, silica particles, alumina, and cerium oxide can be abrasive. Wear-resistant protection can be added to the scroll, feed zone, bowl cone, and solids discharge area.
Stable Operation for Fine Slurry
Bowl speed, differential speed, pond depth, and feed rate can be adjusted according to particle size, slurry concentration, viscosity, and clarified-water target.
Lower Downstream Load
The centrifuge thickens polishing slurry before filter pressing, drying, recovery, or disposal, reducing liquid volume and improving handling efficiency.
Please provide the following information for a suitable glass polishing slurry recovery solution:
- Glass type and polishing process stage
- Polishing powder type, such as cerium oxide, alumina, or silica
- Particle-size distribution
- Fine-particle content
- Slurry solids concentration
- Slurry density and viscosity
- Required processing capacity
- Required solids recovery rate
- Target solids concentration after centrifugation
- Clarified-water quality requirement
- Water recycle requirement
- pH, temperature, and additive content
- Flocculant or polymer currently used
- Downstream filter press, dryer, recovery, or disposal arrangement
- Required material of construction
- Electrical and control standard
Can a decanter centrifuge recover cerium oxide polishing powder?
Yes. It can recover fine cerium oxide and other polishing solids from glass polishing slurry. Recovery performance depends on particle size, slurry concentration, and clarified-water target.
Can the clarified liquid be reused?
Yes. Clarified liquid can often be returned to polishing-water circulation or process-water storage. Further polishing filtration may be needed for stricter reuse quality.
Is wear protection necessary?
It is recommended when the slurry contains glass fines, silica, alumina, or other abrasive particles.
Can the decanter handle coarse glass particles?
Large glass fragments should be screened out before centrifugation. The decanter is more suitable for fine polishing slurry, suspended solids, and sludge thickening.
Can it replace a filter press?
The decanter is mainly used for continuous thickening and primary dewatering. A filter press or dryer may still be used when lower final moisture is required.
Peony welcomes distributor and agent cooperation with glass processing plants, optical glass manufacturers, photovoltaic glass producers, polishing-line suppliers, wastewater treatment companies, and industrial separation partners.
We support partners with slurry testing, decanter centrifuge selection, wear-resistant configuration, flocculant dosing design, process-water recycle integration, installation guidance, commissioning support, spare parts, and after-sales service.
Send us your glass polishing slurry information, including polishing powder type, particle size, solids concentration, required capacity, recovery target, clarified-water requirement, additive content, and downstream handling arrangement. Our engineering team will recommend a suitable decanter centrifuge solution for your glass polishing slurry recovery process.
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