The Decanter Centrifuge for Concrete Slurry Recycling is designed for continuous cement-fines separation, concrete sludge thickening, wash-water clarification, and process-water recovery.

It is suitable for ready-mix concrete plants, precast concrete factories, concrete cutting and grinding wastewater, mixer and truck washout water, aggregate washing systems, and concrete recycling facilities.

• Ready-mix concrete wash-water treatment
• Concrete mixer and truck washout water
• Precast concrete plant wastewater
• Concrete cutting slurry dewatering
• Floor grinding and polishing slurry treatment
• Aggregate washing-water clarification
• Cement-fines recovery
• Concrete recycling plant wastewater
• Settling pond sludge treatment
• Filter press feed preparation
• Process-water recycling
• Concrete sludge volume reduction

Coarse Aggregate and Hardened Concrete

Concrete washout slurry may contain gravel, coarse sand, hardened cement pieces, wire, and other foreign materials.

Recommended pretreatment includes:

• Aggregate separator
• Coarse screen
• Grit trap
• Hydrocyclone or desander
• Agitated equalization tank

Coarse particles should be removed before the slurry enters the centrifuge.

High Alkalinity

Concrete slurry normally contains cement, lime, and alkaline wash water.

The pH, chloride content, admixtures, and cleaning chemicals should be checked before selecting wetted materials and seals.

Rapid Settling and Hardening

Cement particles settle quickly and may begin to hydrate or harden inside tanks, pipes, and equipment.

Continuous agitation, regular flushing, controlled retention time, and automatic cleaning help reduce deposits and blockages.

Abrasive Mineral Solids

Sand, quartz, crushed stone, and aggregate fines can wear the feed zone, scroll flights, bowl beach, and discharge ports.

Recommended protection may include:

• Tungsten carbide scroll tiles
• Ceramic feed-zone liners
• Replaceable discharge inserts
• Hard-faced conveyor surfaces
• Protected solids outlets

Variable Slurry Concentration

Wash-water concentration changes according to production schedule, cleaning frequency, and the number of trucks or mixers being washed.

An agitated equalization tank and controlled feed pump help maintain stable centrifuge operation.

Peony provides continuous separation solutions for concrete sludge thickening, cement-fines recovery, wash-water clarification, and process-water recycling.

Concrete Washout / Cutting / Grinding / Aggregate Washing
→ Aggregate Separation or Coarse Screening
→ Agitated Equalization Tank
→ Optional Slurry Conditioning
→ Decanter Centrifuge
→ Thickened Concrete Sludge
→ Filter Press / Solidification / Reuse Evaluation / Disposal

Clarified Water
→ Recycled-Water Tank
→ Mixer or Truck Washing / Aggregate Washing / Dust Control / Further Treatment

Water used again in concrete production should be checked against the plant’s mix-design and water-quality requirements.

Peony Can Provide

• Concrete slurry testing and centrifuge selection
• Aggregate separation and coarse screening
• Grit removal or desanding system
• Agitated equalization tank
• Controlled slurry feed pump
• Optional pH or slurry-conditioning system
• Adjustable bowl and differential speed
• Pond-depth and torque control
• Carbide or ceramic wear protection
• Automatic flushing and cleaning connection
• Clarified-water collection and recycling system
• PLC and VFD automatic control
• Connection to filter press or sludge container

Continuous Wash-Water Recovery

The centrifuge continuously removes cement fines and suspended solids from concrete washout water.

Reduced Settling Pond Demand

Continuous separation reduces sludge accumulation and lowers dependence on large settling basins.

Stable Filter Press Feed

Pre-thickening produces a more consistent sludge concentration and reduces the hydraulic load on downstream filtration.

Abrasion-Resistant Configuration

Protected feed, conveying, and discharge areas help extend service life under sand, quartz, and aggregate-fines conditions.

Lower Fresh-Water Consumption

Clarified water can be reused for suitable washing and plant-cleaning applications after confirming water quality.

Please provide:

• Slurry source and concrete process
• Particle size and solids concentration
• Slurry flow rate, density, and pH
• Sand, aggregate fines, and admixture content
• Required capacity and water-quality target
• Pretreatment and downstream sludge handling

Peony welcomes distributor and agent cooperation with ready-mix concrete plants, precast factories, concrete recycling companies, stone and concrete cutting contractors, aggregate processors, wastewater-treatment companies, and industrial separation partners.

We support partners with concrete slurry testing, centrifuge selection, aggregate pretreatment, wear-resistant configuration, wash-water recycling, filter press integration, installation guidance, commissioning, spare parts, and after-sales service.

Send us your concrete slurry information, including the slurry source, particle size, solids concentration, required capacity, abrasive content, water-reuse target, and downstream sludge-handling arrangement. Our engineering team will recommend a suitable decanter centrifuge solution for your concrete slurry recycling process.