GN Separation is proud to announce the successful delivery of five GNLW364-FHD Full Hydraulic Drive Decanter Centrifuges to an overseas starch processing facility. These machines are designed to handle high-viscosity, high-concentration materials such as starch slurry, while also meeting stringent food-grade requirements.

GN Separation has recently completed the production of a batch of hydraulic-driven decanter centrifuges, specifically the GNLW364-FHD model, for an overseas starch processing plant. These centrifuges, powered by Viscotherm's renowned hydraulic technology, deliver efficient and sustainable solid-liquid separation, particularly in high-viscosity applications.

How a Hydraulic Decanter Centrifuge Works

A hydraulic decanter centrifuge is a fundamental component in industries that rely on continuous solid-liquid separation. It harnesses centrifugal force to separate suspended solids from liquids based on their density differences. Here's a breakdown of its operation:

1. Feed Introduction: The process commences with the introduction of slurry, such as starch slurry, into the rotating bowl through a stationary feed tube.
2. Centrifugal Sedimentation: As the bowl rotates at high speeds (typically between 2,000 and 4,000 RPM), centrifugal forces up to 3,000×G propel denser solids towards the bowl's wall, while the lighter liquid forms an inner layer.
3. Conveyor Mechanism: A screw propeller, rotating at a slightly different speed than the bowl, transports the settled solids towards the conical end for discharge.
4. Phase Separation: Clarified liquid exits through adjustable weirs at the cylindrical end, enabling precise control over separation efficiency.

In hydraulic drive systems, the rotational motion of the bowl and screw is primarily or partially driven by hydraulic motors. Unlike traditional mechanical gearboxes, hydraulic systems offer variable speed control and dynamic torque adjustment, optimizing performance even under fluctuating feed conditions.

Advantages of Hydraulic Drive Systems

The GN centrifuge employs Viscotherm's hydraulic drive system, a hybrid design that integrates hydraulic and mechanical elements. This configuration offers several benefits, especially for high-viscosity and high-concentration materials:

1. Stable Torque Output: The hydraulic drive ensures smooth and efficient operation, minimizing vibration and noise while enhancing separation efficiency and stability.
2. Accurate Differential Control: The hydraulic differential allows for precise control, even at extremely low differential speeds, making it ideal for applications requiring high separation accuracy.
3. Adaptability to Harsh Conditions: With robust heat dissipation and sealing, the hydraulic system operates reliably in high-temperature and high-humidity environments.
4. Stable Sealing Performance: The system's sealing design effectively isolates contaminants, preserving oil purity and minimizing downtime due to malfunctions.
5. Compact and Lightweight Design: The hydraulic differential is smaller and lighter than mechanical alternatives, reducing stress on main bearings and contributing to the overall longevity of the equipment.

Applications of Hydraulic Decanter Centrifuges

Hydraulic decanter centrifuges are highly versatile and find applications across various industries, including:

1. Starch Production: Efficiently separating solids from liquids in starch processing.
2. Wastewater Treatment: Removing solids from wastewater to comply with environmental standards.
3. Chemical & Pharmaceutical: Ensuring product purity in chemical and pharmaceutical manufacturing processes.
4. Mining & Minerals: Separating valuable minerals from ore slurries.

GN Separation's hydraulic decanter centrifuge, with its precise control and robust performance, is an excellent choice for a wide range of high-viscosity applications. For more information about GN's decanter centrifuges or to discuss your specific requirements, please don't hesitate to contact us.

GN Separation has recently finalized the production of two GNLW364 sewage sludge dewatering centrifuges for a leading overseas environmental protection company. These advanced units are engineered to deliver efficient, reliable, and versatile sludge treatment solutions tailored to diverse industrial and municipal applications.

Dual-Motor Drive System with Three-Frequency Control for Precision Operation

The GNLW364 centrifuges feature a dual-motor drive system paired with a three-frequency control cabinet, enabling fine-tuned adjustments to main and auxiliary motor speeds. This setup also regulates the flow rate of the external feeding screw pump, ensuring optimal performance across varying sludge characteristics. By allowing operators to customize operational parameters, the centrifuges achieve consistent dewatering efficiency while adapting to specific project requirements.

Enhanced Durability with Tungsten Carbide Mechanical Protection

To maximize longevity and reduce maintenance costs, GN Separation has integrated high-quality tungsten carbide components into critical areas of the GNLW364 centrifuges. This ultra-hard, wear-resistant material protects the screw blades and solid discharge ports, minimizing wear and extending equipment lifespan. The result is lower downtime and reduced operational expenses for customers.

Advanced Safety Systems for Reliable Operation

Safety is a cornerstone of GN Separation’s design philosophy. The GNLW364 centrifuges incorporate a Variable Frequency Drive (VFD) cabinet integrated with a Programmable Logic Controller (PLC), which continuously monitors motor current. In the event of overcurrent, the PLC triggers an immediate protective response to prevent motor damage. Additionally, customers can opt for vibration and temperature sensors, providing real-time monitoring of machine health and enabling early detection of potential issues.

High Automation and Superior Solids Discharge Performance

Compared to traditional dewatering technologies like screw presses and filter presses, the GNLW364 centrifuges offer superior automation and drier solids discharge. This makes them ideal for municipal sewage sludge treatment—a common application in environmental protection—as well as challenging applications such as oily sludge processing. Their adaptability ensures efficient performance across a wide range of sludge types and conditions.

Meeting Global Demand for Sustainable Waste Management

The overseas environmental company acquiring these centrifuges stands to benefit from their advanced features, including reduced maintenance, enhanced safety, and versatile dewatering capabilities. As global demand for efficient waste management solutions grows, GN Separation remains committed to delivering innovative, reliable equipment to customers worldwide.

For inquiries about sludge dewatering centrifuges or to explore customized solutions, contact GN Separation today.

GN Separation recently delivered its GNLW364 T Series Dewatering Decanter Centrifuge to an overseas environmental protection company, further expanding its global footprint in industrial and municipal sludge treatment. Known for its efficient performance and robust design, the GNLW364 centrifuge is ideally suited for high-demand dewatering applications across various industries.