GN Separation proudly announced the successful installation and operation of its renowned linear dewatering screen and big bowl decanter centrifuge at a U.S. engineering slurry treatment plant. Recent operational photos shared by the client vividly demonstrate GN's prowess in crafting customized solutions for intricate industrial demands.

1. Linear Dewatering Screen: Precision in Primary Separation

GN's linear dewatering vibrating screen is a masterpiece of engineering, specifically designed to handle high-volume slurry streams with exceptional efficiency. It utilizes a dual-motor vibrating mechanism to ensure optimal screening performance, even in the most abrasive conditions. This innovative design minimizes the risk of clogging while maximizing throughput. Its compact structure makes installation a breeze, and the modular design of the screen panels allows for flexible replacement, significantly reducing downtime during maintenance.

2. High-Speed Decanter Centrifuge: Advanced Secondary Separation

The decanter centrifuge serves as a perfect complement to the dewatering screen, refining slurry treatment through the power of centrifugal force. Operating at high rotational speeds, it generates centrifugal forces of approximately 3,000g, enabling the separation of fine particles as small as 2–5μm and achieving dry solids content of up to around 75%. The adjustable conveyor speed and pond depth offer a high degree of customization, allowing it to handle a diverse range of feed materials, from clay-rich slurries to chemically treated wastewater. Constructed with robust duplex stainless steel and tungsten carbide tiles, the centrifuge is built to withstand corrosive and abrasive conditions, ensuring a long service life.

Synergistic Application in Slurry Treatment

The integration of GN's dewatering vibrating screen and decanter centrifuge forms a highly efficient two-stage separation process, specifically optimized for engineering slurry treatment. The primary objective of this process is to recover clean water for reuse or safe discharge.

1. Primary Separation: Linear Dewatering Screen

At the initial stage, raw slurry is fed into 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 crucial step reduces the solid load of the slurry, thereby minimizing wear on downstream equipment.

2. Secondary Separation: Decanter Centrifuge

The effluent from the dewatering screen, which still contains suspended fines, is then pumped into the decanter centrifuge. Inside the rotating bowl, centrifugal force accelerates sedimentation, effectively separating solids from the liquid phase. The clarified water exits through the liquid discharge ports, ready for recycling in various applications such as 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 efficiently recovers a substantial amount of process water, significantly reducing freshwater consumption and the associated compliance risks.

Lower Disposal Costs

By producing drier solids, the system effectively cuts transportation and landfill fees, resulting in substantial cost savings.

Environmental Compliance

The system meets stringent regulations for wastewater discharge, helping clients avoid fines and reputational damage.

GN Separation is a leader in designing and manufacturing mining vibrating screens and decanter centrifuges for a wide range of industries, including oil and gas, mining, environmental engineering, and food processing. With a global presence spanning over 70 countries, the company is widely recognized for its R&D-driven innovations and unwavering commitment to sustainability.