Decanter Centrifuge & Vibrating Screen Manufacturer

GN Separation has announced the successful deployment of its flagship linear dewatering screen and big bowl decanter centrifuge at a U.S.-based engineering slurry treatment plant. The equipment, captured in recent operational photos shared by the client, underscores GN’s expertise in designing tailored solutions for complex industrial challenges.

1. Linear Dewatering Screen: Precision in Primary Separation
GN’s linear dewatering vibrating screen is engineered to tackle high-volume slurry streams with unmatched efficiency. It adopts dual-motor vibrating to ensure optimal screening performance, even in abrasive environments. The system minimizes clogging while maximizing throughput. Its structure is compact and easy to install, the screen panels are modular design for flexible replacement, reducing downtime during maintenance.
2. High-Speed Decanter Centrifuge: Advanced Secondary Separation
The decanter centrifuge complements the dewatering screen by refining slurry treatment through centrifugal force. High rotational speed generates centrifugal forces around 3,000g, enabling fine particle separation (2–5μm) and achieving dry solids content of up to around 75%. Adjustable conveyor speed and pond depth allow customization for diverse feed materials, from clay-rich slurries to chemically treated wastewater. Constructed with duplex stainless steel and tungsten carbide tiles, the centrifuge withstands corrosive and abrasive conditions, extending service life.

Synergistic Application in Slurry Treatment
The integration of GN’s dewatering vibrating screen and decanter centrifuge creates a two-stage separation process optimized for engineering slurry treatment, where the primary goal is to recover clean water for reuse or safe discharge.

1. Primary Separation: Linear Dewatering Screen
At the initial stage, raw slurry enters the dewatering screen. The vibrating motor generates linear motion, causing larger particles to migrate across the screen deck while water and fines pass through. This step reduces the slurry’s solid load, minimizing wear on downstream equipment.

2. Secondary Separation: Decanter Centrifuge
The effluent from the dewatering screen, still containing suspended fines, is pumped into the decanter centrifuge. Inside the rotating bowl, centrifugal force accelerates sedimentation, separating solids from the liquid phase. The clarified water exits through the liquid discharge ports, ready for recycling in concrete production or irrigation. Meanwhile, the dewatered solids are transported via the screw conveyor for disposal.

Advantages of the Combined System

Enhanced Water Recovery: The process recovers plenty of process water, reducing freshwater consumption and compliance risks.
Lower Disposal Costs: By producing drier solids, the system cuts transportation and landfill fees.
Environmental Compliance: Meets stringent regulations for wastewater discharge, avoiding fines and reputational damage.

GN Separation specializes in designing and manufacturing mining vibrating screens and decanter centrifuges for industries including oil and gas, mining, environmental engineering, and food processing. With a global footprint spanning 70+ countries, the company is recognized for its R&D-driven innovations and commitment to sustainability.