gnadmin | GN Decanter Centrifuge

GN 4 Sets Automatic Tank Cleaning Systems Delivered to Africa

GN Solids Control is pleased to announce the delivery of 4 sets of GNTC-30C Automatic Tank Cleaning Systems to an African customer for drilling mud tank wash water treatment. Designed for efficient and environmentally responsible tank cleaning, the system provides a closed-loop solution for continuously cleaning mud tanks, oil tanks, chemical tanks and slurry tanks.

The GNTC-30C integrates high-pressure water cleaning with solids-liquid separation and water recycling. During operation, fresh water is supplied to the high-pressure tank cleaning machines installed inside the tanks. The dirty wash water is collected and returned to the system, where solids and contaminants are separated before the cleaned water is recycled for reuse. This continuous process reduces water consumption and minimizes the manpower required for tank cleaning operations.

Each system has a slop processing capacity of up to 30 m³/h and a water capacity of 7.5 m³. The integrated equipment includes a centrifugal pump, vacuum pump, air pump, chemical dosing unit, filter, solids-liquid separator, solids discharge auger, water recycling tank, high-pressure water pump and electrical control system.

For demanding oil and gas applications, the GNTC-30C is equipped with an explosion-proof motor and control panel suitable for Zone 1 applications.

As an API-certified manufacturer, GN Solids Control continues to provide integrated solids control and waste management solutions for customers worldwide.

GN Separation Compact 14-inch Decanter Centrifuge Empowers Overseas WWTP Intelligent Sludge Treatment

Global wastewater treatment industries are shifting toward intelligent operation, low energy consumption and full-process unmanned management. Traditional sludge dewatering equipment with high manual dependence, unstable treatment effect and frequent maintenance can no longer meet the upgrading demands of modern overseas wastewater treatment plants. To solve the pain points of difficult sludge reduction, high operating costs and complicated on-site operation in overseas water treatment projects, GN Separation has launched its optimized 14-inch compact decanter centrifuge, delivering flexible, efficient and intelligent sludge dewatering solutions for small and medium-sized overseas WWTPs and industrial water treatment projects.

The GNLW364GT 14-inch decanter centrifuge is a compact and high-efficiency star model independently developed by GN Separation for global medium and small-scale environmental projects. Different from large-scale industrial centrifuges with bulky structure and high energy consumption, this equipment features a highly integrated modular design, which greatly reduces overall floor space and installation difficulty, perfectly fitting the site space limitations of overseas old plant renovation and new small and medium-sized water treatment projects.

In terms of core treatment performance, the equipment adopts upgraded high-precision spiral separation technology and dynamic balance calibration technology. It can efficiently handle mixed sludge with uneven particle size and variable concentration, which is common in overseas municipal and industrial sewage. With stable high G-force separation performance, the centrifuge realizes thorough solid-liquid separation. The dewatered sludge cake features low and stable moisture content, achieving remarkable sludge volume reduction effect. It effectively solves the problems of unqualified sludge drying degree and repeated treatment caused by fluctuating water quality in overseas projects.

Focusing on the overseas operation scenario with insufficient on-site technical personnel, GN Separation has intelligently upgraded the whole machine. The equipment is equipped with a full-automatic operating system, which can realize automatic start-stop, adaptive adjustment of operating parameters, fault self-diagnosis and remote data monitoring. Cooperated with the matched automatic chemical dosing unit, the whole sludge dewatering system achieves unattended 24-hour continuous operation, greatly reducing the requirement for on-site professional operators and lowering the daily operating and management costs of overseas customers.

Durability and international adaptability are the core advantages of this model for overseas market promotion. Key rotating parts and wear parts of the centrifuge adopt high-strength alloy anti-wear treatment, with extended service life and low failure rate, adapting to long-term high-load operation in different regional climatic and water quality environments. All electrical components and control systems comply with international general standards, supporting multi-language operation interface and international voltage customization. The standardized modular structure realizes quick replacement of spare parts, convenient for overseas localized after-sales maintenance and zero-delay equipment guarantee.

In addition to conventional municipal residual sludge treatment, the equipment is also widely applicable to fine biochemical sludge, food industry sludge, light industrial wastewater sludge and other low-to-medium viscosity sludge treatment scenarios. It is an ideal customized supporting equipment for overseas environmental EPC projects, industrial park water treatment supporting facilities and urban domestic sewage upgrading and reconstruction projects.

Adhering to the development concept of “technology-driven, global empowerment”, GN Separation keeps optimizing lightweight and intelligent separation equipment suitable for global diversified working conditions. With reliable product quality and localized service system, the company helps overseas customers realize efficient sludge harmless treatment, volume reduction and resource utilization, and assists the global environmental protection industry in high-quality development.

For personalized solution customization, equipment operation videos, overseas project cases and latest quotation, please contact the international sales team of GN Separation.

GN 14-Inch Dewatering Decanter Centrifuge for Overseas Wastewater Treatment Plant

GN Solids Control has supplied a 14-inch dewatering decanter centrifuge for an overseas wastewater treatment plant, providing an efficient solution for sludge dewatering and volume reduction. The GN T Series dewatering decanter centrifuge is specifically designed for applications requiring high solids dryness and reliable continuous operation.

With an 8.5° beach angle, the T Series centrifuge features an extended dewatering zone, allowing more effective separation and producing drier solids at the discharge. The optimized liquid pool depth, pitch and beach design also improve liquid clarity while reducing energy consumption. Key rotating components are manufactured using centrifugal casting and precision forging processes, while duplex stainless steel SUS2205 or SUS2304 can be adopted for excellent corrosion resistance and mechanical strength.

For wastewater containing fine suspended particles, GN can combine the dewatering centrifuge with a Chemical Dosing Unit. Flocculants are prepared and dosed into the sludge to agglomerate fine particles before centrifugation, significantly improving separation efficiency and dewatering performance.

The system can be customized according to different sludge characteristics, including municipal sewage sludge, industrial wastewater sludge and other high-concentration materials. With integrated monitoring, overload protection and automatic alarm functions, GN‘s dewatering solution provides stable, efficient and easy-to-maintain operation for modern wastewater treatment plants.

Unlocking Iron Ore Plant Capacity: High-Efficiency Wet Sizing with GN High-Frequency Vibrating Fine Screens

Ball mill grinding accounts for up to 50% of total energy consumption in mineral processing plants. When conventional hydraulic classification recirculates already-ground iron minerals into the mill, plant operators face reduced circuit capacity, elevated power costs, and recovery losses caused by ultrafine slimes.

The GN Separation Stack High-Frequency Vibrating Screen eliminates these operational bottlenecks. By substituting specific-gravity classification with sharp, geometric particle sizing, this technology delivers cleaner concentrate separation and higher grinding circuit efficiency.

Engineered for High-Wear Slurry Environments

Targeted G-Force Acceleration: High-speed, micro-amplitude linear vibration breaks pulp surface tension instantly. Fine particles settle through the fluid layer rapidly while coarse oversize conveys smoothly off the deck, preventing aperture blinding and slot blockage.
Vertical Stack Architecture: Available in multi-deck parallel configurations fed through an internal slurry distributor. This compact footprint delivers the screening capacity of several conventional single-deck screens while conserving valuable plant floor space.
Long-Life Polyurethane Screening Media: Custom-formulated wear-resistant polyurethane panels (apertures down to 43 microns) resist highly abrasive magnetite and hematite pulps, maintaining aperture accuracy across prolonged operational cycles.
Balanced Dynamic Vibration Control: Precision-tuned isolation mounts absorb working dynamic loads, enabling straightforward installation onto existing steel platforms without heavy structural modifications.

Performance Impact in Iron Beneficiation

Increased Grinding Circuit Throughput: Diverting qualified finished fines out of the recirculating load frees up grinding capacity, delivering an immediate 15% to 30% increase in mill throughput.
Direct Silica Rejection: Cleanly strips out coarse, silica-rich middlings before magnetic separation or flotation, boosting iron concentrate grade by 1% to 3% and reducing silica penalties.
Lower Specific Power Consumption: Eliminates redundant over-grinding of heavy mineral fractions, cutting kWh per ton of produced concentrate.
Optimized Downstream Dewatering: Consistent, sharp cutoffs reduce ultrafine slimes, significantly improving downstream thickener underflow densities and filter cake moisture levels.

Built for Heavy Mining Operations by GN Separation

With complete in-house manufacturing, full CNC fabrication lines, and field-tested installations across the globe, GN Separation manufactures rugged separation and screening machinery designed for maximum uptime in demanding mineral processing circuits.

Contact GN Separation engineers today to evaluate your slurry parameters (feed solids %, PSD, and target separation size) and receive a customizedscreening flowsheet recommendation.

GN Synergistic Frequency Vibrating Screen for Fine Iron Ore Screening

GN Solids Control has developed the Synergistic Frequency Vibrating Screen for efficient screening, grading, and separation of fine-grained materials. For iron ore processing, the screen provides an effective solution for fine screening where conventional screens may face challenges such as mesh blinding and low screening efficiency.

The GN Synergistic Frequency Vibrating Screen combines linear vibration and partial electromagnetic vibration. Dual vibration motors drive the screen deck to perform stable linear vibration, ensuring smooth material transportation across the screen surface. Meanwhile, electromagnetic exciters generate high-frequency vibration directly on the screen mesh. The electromagnetic amplitude can be adjusted by controlling the current, allowing the vibration intensity to be optimized for different screening conditions.

The strong instantaneous electromagnetic vibration helps the screen mesh achieve self-cleaning, reducing blockage and maintaining stable screening performance. Electromagnetic exciters can also be controlled separately to meet different amplitude requirements across the screen surface.

For wet iron ore screening, the integrated water spray system helps disperse materials and improve screening efficiency. In addition, all material-contacting parts are coated with polyurea, providing enhanced wear and corrosion resistance for longer equipment service life.

With its combined vibration technology, high screening efficiency, and anti-blinding performance, the GN Synergistic Frequency Vibrating Screen is a reliable solution for fine iron ore screening and other mineral processing applications.