Corrosion-Resistant Industrial Decanter Centrifuge for Hazardous waste sludge

Corrosion-Resistant Industrial Decanter Centrifuge is designed for continuous solid-liquid separation of corrosive industrial sludge.

Compared with general-purpose decanter centrifuges, this model focuses on anti-corrosion material selection, chemical compatibility, stable sludge dewatering, and reduced downtime caused by corrosion-related wear or damage.

• Acidic process slurry separation
• Alkaline process slurry separation
• Acid pickling residue slurry treatment
• Alkali washing residue slurry treatment
• Corrosive reaction sludge dewatering
• Corrosive mother liquor solid-liquid separation
• Acid / alkali neutralization residue separation
• Corrosive industrial precipitated sludge treatment
• Hazardous waste pretreatment slurry with corrosive liquid phase

For highly corrosive materials, final material selection should be confirmed based on actual chemical composition.

The feed zone is the first area exposed to corrosive slurry. If the liquid phase contains acid, alkali, or chemical residue, the feed chamber and feed pipe should be selected carefully.

The bowl is continuously exposed to both solids and corrosive liquid. Material selection must consider pH, temperature, and chemical compatibility.

The screw conveyor contacts both wet solids and liquid phase. For corrosive slurry with abrasive particles, both corrosion resistance and local wear protection may be required.

The liquid outlet handles clarified corrosive liquid continuously. This area should not be treated as a standard water discharge point.

The discharged cake may still contain corrosive moisture. The discharge port should be protected to reduce corrosion and wear.

If the material produces corrosive vapor or odor, sealing design and cover material should be considered together.

1. Corrosive industrial sludge enters the rotating bowl through the feed pipe.
2. Under high-speed centrifugal force, heavier solid particles, chemical precipitates, and flocculated sludge move outward and form a sediment layer on the inner wall of the bowl.
3. The clarified liquid phase stays closer to the center and is discharged continuously through the liquid outlet.
4. At the same time, the screw conveyor rotates at a controlled differential speed and pushes the separated sludge cake toward the discharge end.

Material can be selected according to pH value, process temperature, corrosive liquid phase, solvent residue, and chemical composition.

Proper material selection helps reduce corrosion damage, leakage risk, unexpected shutdown, and frequent repair caused by unsuitable contact materials.

Key contact areas such as the bowl, screw conveyor, feed zone, liquid outlet, discharge port, cover, and sealing area can be configured for corrosive media.

The machine supports continuous solid-liquid separation in acidic or alkaline industrial process slurry where standard material may not be reliable.

If the corrosive material also contains abrasive particles, wear protection can be added to key areas while keeping corrosion resistance in mind.

PLC control, VFD adjustment, torque protection, vibration alarm, and operation monitoring can support long-hour industrial operation under stable feed conditions.

With suitable material selection, stable feeding, and proper operating conditions, this corrosion-resistant industrial decanter centrifuge can typically help achieve:

• Reduced corrosion-related maintenance risk
• Lower leakage and contact-part failure risk
• More stable operation in acidic or alkaline slurry
• Longer service life of bowl, screw conveyor, outlet, and cover parts
• 75–95% solid capture rate, depending on feed condition
• 60–90% suspended solids reduction, depending on separation target
• 18–35% cake solids content, depending on sludge characteristics
• 16–24 hours/day continuous operation under stable feed and proper maintenance conditions

Actual results depend on pH, temperature, chemical composition, solids content, particle characteristics, flocculation effect, feed stability, and material compatibility.

To recommend a suitable corrosion-resistant industrial decanter centrifuge, please provide:

• Feed material name
• Industry application
• Capacity requirement
• Solids content
• Particle size or particle characteristics
• pH value
• Chloride content
• Salt concentration
• Temperature
• Viscosity
• Heavy metal type, if applicable
• Solvent or special chemical components, if any
• Corrosion condition
• Abrasion condition
• Polymer dosing condition
• Target cake moisture
• Target liquid clarity
• Operating hours per day
• Site voltage
• Control preference
• Need for skid-mounted system or not

For corrosive materials, material selection should be confirmed before quotation.

It is a decanter centrifuge designed for corrosive industrial sludge conditions. The contact material and structure can be customized according to pH, chloride content, salt concentration, temperature, and chemical composition.

Common options include SUS304, SUS316L, duplex stainless steel, or special corrosion-resistant materials. The final selection should be based on actual feed composition and operating temperature.

Yes. It can be configured for acidic or alkaline process slurry, but the pH value, temperature, and chemical composition must be confirmed before material selection.

It depends on the material. Polymer dosing may improve floc formation and solid capture, but it is not the main factor for corrosion resistance. Material selection should be confirmed first.

Yes. It can be configured for continuous industrial operation. Stable feeding, suitable material selection, proper maintenance, and correct operating parameters are important for long-hour operation.

If you have local customer channels or project resources involving acidic process slurry, alkaline process slurry, corrosive reaction sludge, acid / alkali residue slurry, corrosive mother liquor, or hazardous waste pretreatment slurry, Peony welcomes cooperation.

Peony can support local agents, distributors, and project partners with technical model selection, anti-corrosion material recommendation, equipment configuration, process proposal, manufacturing, installation guidance, commissioning support, spare parts, and after-sales service.

Please 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.