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Seaweed processing in Southeast Asia has expanded rapidly over the past decade, driven by growing global demand for sustainable proteins, bioactive compounds, and bio-based materials. The region’s warm coastal waters and established aquaculture infrastructure make it a major supplier of both macroalgae and microalgae. However, the downstream processing of seaweed biomass presents persistent engineering challenges, particularly in the solid-liquid separation stage. GNL 2-phase disc centrifuges have emerged as a practical solution for these separation tasks, and their deployment in Southeast Asian seaweed projects reflects a broader trend toward high-efficiency mechanical separation in marine bioprocessing.

Seaweed slurries differ significantly from conventional fermentation broths or wastewater streams. They typically contain fine cellular particles, often in the micron range, suspended in a liquid phase that carries dissolved polysaccharides and other viscous compounds. These characteristics create two immediate problems: slow gravitational settling and a tendency for the solid phase to foul or clog separation equipment. In many Southeast Asian operations, seaweed is harvested or cultivated in dilute suspension, meaning the initial solid concentration is low. Recovering this dilute biomass efficiently is essential because the cost of dewatering directly affects the economics of downstream drying, extraction, and product formulation.

The target of separation in a typical project is straightforward: concentrate the algal cells or fragments into a high-solids stream while producing a clarified liquid that can be discharged or recycled. A 2-phase disc centrifuge is well suited to this task because it separates based on density difference under high centrifugal force, without requiring chemical pretreatment or excessive thermal input.

A disc centrifuge operates by feeding slurry into a rapidly rotating bowl that contains a stack of conical discs. These discs divide the internal volume into narrow channels, reducing the distance a particle must travel before it reaches a settling surface. This design dramatically increases the effective settling area within a compact machine footprint. Under centrifugal acceleration, denser particles—in this case, seaweed cells and cell debris—migrate outward and collect along the disc surfaces, eventually sliding toward the bowl wall. The lighter liquid phase moves inward and exits through a separate outlet.

The 2-phase configuration means the machine produces two streams: a concentrated solids phase and a clarified liquid phase. For seaweed slurries, this is often the preferred arrangement because the goal is biomass recovery rather than simultaneous oil or solvent separation. Solids discharge can be automated, with the bowl opening at set intervals to eject accumulated solids while the machine continues running. This feature is particularly important when processing slurries with variable solid loads, as it prevents blockages and maintains consistent throughput.

Seaweed slurries are not uniform, and a disc centrifuge must be adjusted to handle their specific properties. Several design and operational parameters matter:

Disc spacing and angle determine how effectively fine particles can settle and slide. If the spacing is too wide, settling efficiency drops; if too narrow, viscous slurries may bridge the gaps. The disc angle must allow settled solids to slide downward under centrifugal force, which requires the tangent of the angle to exceed the friction coefficient between the particle and the disc surface.

Surface finish on the discs affects fouling. Smooth surfaces reduce drag and minimize the adhesion of sticky polysaccharides, which are common in seaweed extracts.

The liquid-level ring and gravity ring at the outlet can be adjusted to shift the separation interface. In practice, this is one of the most useful tuning points for seaweed processing, because the viscosity of the liquid phase changes with temperature and composition. By adjusting the outlet geometry, operators can produce either a drier solids concentrate or a clearer liquid, depending on which output is more valuable at a given stage.

Temperature control is another practical consideration. Warming the feed slightly reduces viscosity and improves separation, but excessive heat can degrade heat-sensitive compounds such as pigments or omega-3 fatty acids. The centrifuge itself does not generate significant heat, so temperature management is mainly a matter of controlling the feed condition.

Modern disc centrifuges for industrial seaweed processing are typically equipped with PLC-based control systems and human-machine interfaces. These systems manage feed rate, bowl speed, and solids discharge intervals. Variable-frequency drives allow the bowl speed to be adjusted for different slurry types, which is useful when a facility processes more than one seaweed species. Automated discharge reduces labor and ensures consistent operation over long production runs. Remote monitoring and fault diagnostics further reduce downtime, which is a meaningful advantage in remote coastal locations where technical support may be limited.

The economic case for disc centrifuges in seaweed processing rests on several factors. First, they achieve high recovery rates, often approaching complete capture of suspended solids, even when the feed is dilute. This is important because the biomass itself is the product; losses at the separation stage cannot be recovered later. Second, the solids concentrate produced by a disc centrifuge typically has a higher dry matter content than what is achievable with gravity settling or simple filtration. This reduces the energy required for subsequent drying, which is often the largest operating cost in seaweed processing. Third, the continuous operation and automated discharge reduce labor requirements compared to batch methods such as filter presses or settling tanks.

Energy consumption is also favorable. A disc centrifuge uses centrifugal force rather than heat or vacuum to achieve separation, and the specific energy consumption per unit of solids recovered is relatively low. For a typical Southeast Asian seaweed project, the combination of high recovery, low labor, and reduced drying load can translate into substantial savings over the life of the equipment.

Seaweed slurries are often saline and slightly acidic, so contact parts must be corrosion-resistant. Stainless steels such as SS304 or SS316L are standard, and duplex stainless steel may be specified for particularly aggressive conditions. The bowl and discs must be precisely machined and balanced to withstand high rotational speeds without vibration. Manufacturing quality directly affects service life and separation performance, so equipment sourced from established suppliers with verified machining capabilities is preferable.

Introducing a disc centrifuge into an existing seaweed processing line requires attention to upstream and downstream integration. Feed should be screened or pre-filtered to remove large debris that could damage the bowl or block the discs. Flow rate should be controlled to match the machine’s capacity, since overfeeding reduces separation efficiency and underfeeding wastes capacity. Regular cleaning and inspection are necessary, particularly when processing slurries with high polysaccharide content, because sticky deposits can accumulate on disc surfaces over time.

It is also advisable to conduct bench-scale or pilot-scale separation tests with the actual seaweed slurry before full-scale installation. Slurry properties vary by species, harvest season, and pretreatment method, so operating parameters optimized in one location may not transfer directly to another. Working with the equipment supplier to establish the correct bowl speed, feed rate, and discharge interval for the specific material is a practical step that improves outcomes and reduces startup problems.

GNL 2-phase disc centrifuges offer a technically sound and economically viable approach to seaweed slurry separation in Southeast Asian projects. Their ability to handle fine, viscous, and dilute suspensions makes them suitable for a range of seaweed types and processing scales. With appropriate attention to disc design, outlet configuration, temperature control, and automation, these machines can deliver high biomass recovery, reduced drying costs, and reliable continuous operation. As the region’s seaweed industry continues to grow, efficient mechanical separation will remain a critical link between cultivation and the production of higher-value algal products.

In late August 2026, Hebei GN Solis Control Co., Ltd. completed the shipment of a five-deck vibrating screen to an overseas client. The equipment, designed for mineral processing applications, represents a continuation of the company’s fifteen-year track record in vibration screening technology.

The five-deck vibrating screen is a high-frequency screening unit engineered for fine particle classification in mining operations. Its primary function is to separate crushed ore into multiple size fractions simultaneously, a process that is critical for downstream processing efficiency. The machine features five stacked screen decks, each with independently adjustable vibration parameters, allowing operators to optimize separation performance for specific ore types.

The structural design of the screen  for fatigue design and assessment of steel structures. Before manufacturing, the engineering team conducted finite element analysis to evaluate stress distribution and displacement across critical load-bearing components. This analytical approach identifies potential weak points in the frame before they become operational issues, a practice that reduces the likelihood of structural failure during continuous operation.

The screen’s vibration mechanism generates a complex spatial trajectory rather than a simple linear or circular motion. This characteristic enhances material dispersion across the screen surface, which improves the probability of fine particles reaching lower decks. The vibration frequency and amplitude can be adjusted to suit different material densities and moisture contents, providing operational flexibility across varied mining conditions.

A notable feature of this equipment is the quick-release screen deck system. Each deck uses mechanical gear mechanisms that allow operators to remove and replace screening media with a ratchet wrench. This design reduces downtime during screen changes from several hours to under one hour. In the event that the gear mechanism becomes damaged, the design still permits traditional hammer-and-wedge removal, ensuring that maintenance is never completely blocked by a single component failure.

The screen media itself uses polyurethane panels with high open-area ratios. This material choice balances wear resistance against screening efficiency. The panels are manufactured with precision tolerances to maintain proper tension across the deck, which is essential for accurate particle sizing. The bottom frame sealing strips use stainless steel, protecting against corrosion in environments where moisture and abrasive fines are present.

For this particular shipment, the equipment was configured to handle iron ore feed with a maximum particle size of 10 millimeters. The client specified a target separation at 0.5 millimeters, a requirement that the five-deck configuration can achieve with a processing capacity of approximately 50 tons per hour. The exact performance specifications were verified during factory testing before the unit was disassembled for shipping.

Quality control procedures for this export order included full assembly and no-load test runs at the manufacturing facility. During these tests, engineers measured vibration amplitude at multiple points across each deck to ensure uniform motion. They also checked for abnormal noise levels and verified that all safety interlocks functioned correctly. Only after passing these checks was the machine disassembled, surface-treated, and prepared for container loading.

The overseas shipment required coordination across multiple logistics stages. The five-deck screen was disassembled into major sub-assemblies that could be safely transported in standard shipping containers. Components were protected with corrosion inhibitors and shock-absorbing packaging to prevent damage during ocean transit. The shipment documentation included detailed assembly instructions, maintenance manuals, and a full parts list to support on-site reassembly.

This transaction reflects a broader trend in the mining equipment sector where clients increasingly demand machinery that combines high processing efficiency with reduced maintenance requirements. The five-deck configuration addresses this need by maximizing screening area per unit of floor space, which is particularly valuable in operations where plant footprint is constrained.

GN Separation’s ability to execute this order successfully stems from its established manufacturing processes and its experience in serving international markets. The company has previously supplied vibrating screens to operations in Europe, North America, Australia, and Africa. This geographic diversity has required the engineering team to design equipment that can operate reliably under different electrical standards, environmental conditions, and regulatory frameworks.

The completion of this shipment adds to the company’s growing portfolio of high-frequency screening installations overseas. As mining operations continue to process lower-grade ore bodies, the demand for efficient fine screening technology is expected to remain strong. Equipment that can achieve sharp separations at fine particle sizes while withstanding continuous operation will continue to find buyers in global markets.

Decanter centrifuges have become a standard technology for sludge dewatering in modern wastewater treatment plants. Among the various models available, the GN Separation 14-inch (GNLW364-VFD) decanter centrifuge has gained notable traction in overseas markets, particularly for municipal and industrial sludge treatment applications. This article provides a technical overview of how this equipment functions and why it is suited for international wastewater projects.

The primary role of a sludge dewatering centrifuge is solid-liquid separation. In a wastewater treatment plant, sludge generated from primary and secondary settling tanks typically contains more than 95% water. Direct disposal of this sludge is impractical and costly due to its volume. The centrifuge reduces the water content, producing a cake that is easier to handle, transport, and dispose of, while the separated liquid (centrate) is returned to the treatment process for further clarification. The GN 14-inch model is designed to handle a throughput that suits medium-to-large scale plants, typically processing 20 to 50 cubic meters per hour depending on sludge type.

The operational principle is based on differential sedimentation. The equipment consists of a rotating bowl and an internal screw conveyor (scroll) that rotates at a slightly different speed.

1. Feed and Acceleration: Sludge is pumped into the centrifuge through a stationary feed tube. It enters the rotating bowl assembly, where it is gently accelerated to avoid breaking the flocs that have been formed by polymer addition upstream.
2. Sedimentation: Inside the cylindrical-conical bowl, the mixture is subjected to a centrifugal force that can exceed 3000 times gravity (up to 3000 RPM for this model). Under this force, suspended solids, which have a higher density than water, are rapidly deposited against the bowl wall.
3. Conveyance and Dewatering: The screw conveyor, driven by a planetary gearbox (differential), rotates slightly slower (or faster) than the bowl. This relative motion pushes the settled solids toward the conical end (the beach) of the bowl. As the solids travel up the beach, they are exposed to the open air and further drainage occurs before they exit through discharge ports.
4. Liquid Discharge: The clarified liquid, now free of suspended solids, overflows through adjustable weir plates at the opposite end of the bowl. The weir position controls the liquid pool depth, which is a critical parameter for optimizing cake dryness and centrate clarity.

The GNLW364-VFD model incorporates several features that address the specific challenges of overseas installations:

• Material Selection: The bowl is manufactured from Duplex Stainless Steel 2205. This material offers high tensile strength and excellent resistance to chloride-induced stress corrosion cracking, making it suitable for sludges with high salinity or aggressive chemical content. The scroll blades are protected with tungsten carbide tiles or a wear-resistant coating to withstand abrasive grit often present in raw sewage.
• Variable Frequency Drive (VFD) Control: The “VFD” in the model name indicates that the main motor speed is adjustable. This allows the operator to fine-tune the centrifugal force to match the specific sludge characteristics (e.g., biological sludge vs. chemical sludge). A separate back-drive system controls the differential speed between the bowl and the scroll. Precise control of this differential speed is essential for achieving consistent cake dryness without overloading the conveyor.
• Compact Footprint: Compared to belt presses or filter presses, a centrifuge occupies significantly less floor space. For overseas projects where real estate is expensive or existing infrastructure is being retrofitted, this is a decisive advantage.

Successful operation requires proper integration with the upstream process. The centrifuge must be paired with a polymer dosing unit for flocculation. The performance is highly dependent on the polymer type and mixing energy. For overseas projects, GN Separation provides complete process engineering support, including the design of the feed pump, flocculant preparation system, and cake discharge conveyor.

In summary, the GN 14-inch decanter centrifuge serves as a robust and efficient solution for sludge volume reduction in overseas wastewater treatment plants. Its high centrifugal force, durable construction, and precise speed control enable operators to achieve dry solids content typically in the range of 20% to 30%, depending on the sludge type. This reduces disposal costs and contributes to the overall sustainability of the treatment facility

Iron ore processing has always been a critical part of the global mining industry, and in recent years, the demand for finer and more efficient separation technologies has grown considerably. As high-grade ore reserves continue to decline, the need to process low-grade, finely disseminated ore bodies has pushed operators to seek more precise screening solutions. One technology that has gained significant traction in this space is the high-frequency vibrating fine screen, particularly the co-frequency vibrating fine screen developed by GN Solids Control. This equipment is specifically engineered to handle the challenges of fine iron ore classification, where traditional screening methods often fall short.

The core function of a high-frequency vibrating fine screen is to separate particles at a very fine cut point, typically below 0.5 millimeters. Unlike conventional screens that rely on larger amplitudes and lower frequencies, these units operate with small amplitudes and high vibration frequencies. This design allows for better stratification of the feed material, which in turn improves the efficiency of the separation process. In iron ore applications, this translates directly into higher-grade concentrate and reduced losses of valuable iron units to the tailings stream.

One of the most significant technical advantages of the GN co-frequency vibrating fine screen is its use of a dual-motor self-synchronizing drive system. The two motors operate in reverse directions, generating a linear motion that moves the material evenly across the screen surface. This approach eliminates the need for bulky mechanical exciters, which are common failure points in other vibrating screens. The result is a more reliable machine with lower maintenance requirements, a key consideration for operations running continuous shifts in abrasive environments.

The screen deck configuration also plays a major role in the performance of this equipment. GN offers multi-deck arrangements, ranging from two to five layers, depending on the specific requirements of the application. This design allows for a much larger effective screening area within a compact footprint. For iron ore plants where floor space is often limited, this is a practical advantage. The multi-layer design also enables the machine to process higher tonnages per unit area, which directly improves the economics of the operation.

Another critical aspect is the choice of screen media. GN uses flexible polyurethane panels for the screening surface. Polyurethane is well known for its wear resistance and its ability to reduce blinding, which occurs when fine particles clog the openings in the screen mesh. This is especially important in iron ore processing, where the material can be sticky or contain a high percentage of near-size particles that tend to wedge into the apertures. By reducing blinding, the screen maintains consistent throughput and separation efficiency over longer periods, minimizing downtime for cleaning and panel replacement.

From a process perspective, the use of a high-frequency fine screen in iron ore circuits has been shown to improve the quality of the final concentrate. When installed ahead of the flotation or magnetic separation stages, the screen ensures that the feed material is properly classified, which enhances the performance of downstream equipment. In many installations, the use of such screens has resulted in a measurable increase in iron recovery and a reduction in silica content in the final product. These improvements have a direct impact on the commercial value of the concentrate and the overall profitability of the mine.

In addition to the vibrating screen itself, GN provides complementary equipment such as decanter centrifuges for dewatering and solid vacuum pumps for material transport. This integrated approach means that a single supplier can provide a complete solution for fine particle separation, from classification to dewatering. For project managers and plant engineers, this reduces the complexity of coordinating multiple vendors and ensures that the different pieces of equipment are compatible with each other.

The operational benefits of the GN co-frequency vibrating fine screen are supported by real-world data from iron ore projects. In several installations, the use of this equipment has led to a significant improvement in screening efficiency compared to older nylon or conventional wire mesh screens. The ability to achieve a finer cut point without sacrificing throughput has allowed plants to increase their overall production while maintaining product quality. Furthermore, the extended lifespan of the polyurethane panels, which can last up to 7,000 hours in abrasive service, reduces the frequency of maintenance interventions and lowers the total cost of ownership。

Looking at the broader industry context, the development of high-frequency screening technology has been driven by the need to process more complex ore bodies. As mining operations move toward lower-grade deposits, the economic viability of a project often depends on the ability to recover value from fine and ultrafine particles. The GN co-frequency vibrating fine screen addresses this challenge head-on by providing a robust, efficient, and cost-effective solution for fine iron ore classification. Its design principles, which prioritize reliability, ease of maintenance, and high separation accuracy, make it a suitable choice for both greenfield projects and existing plants looking to upgrade their classification circuits.

In summary, the GN co-frequency vibrating fine screen represents a practical and well-engineered solution for fine iron ore screening. Its dual-motor linear motion drive, multi-deck configuration, and durable polyurethane screen media combine to deliver high screening efficiency, low operating costs, and consistent performance under demanding conditions. For mining companies focused on improving recovery rates and product quality, this technology offers a clear path to achieving those objectives without the need for extensive modifications to existing plant infrastructure. As the industry continues to evolve, equipment of this nature will play an increasingly important role in ensuring that iron ore processing remains both economically and environmentally sustainable.

In the demanding world of mineral exploration and diamond core drilling, operational efficiency and environmental compliance are more critical than ever. Drilling teams often operate in remote, environmentally sensitive locations where managing drilling fluids—commonly known as drilling mud—can make or break a project.

Enter the GN GNLW223D Decanter Centrifuge, a compact yet powerful solution engineered by GN Solids Control to revolutionize fine solids separation in small-capacity and space-restricted environments.

Understanding the GNLW223D Mini Decanter Centrifuge

The GNLW223D is a specialized 9-inch (220 mm) bowl mini decanter centrifuge designed specifically to tackle the rigorous demands of diamond drilling and geological coring. Unlike massive industrial centrifuges used in large oil and gas operations, this “baby” centrifuge is purposefully built for portability, high-speed performance, and ease of deployment.

Featuring a robust fixed-speed drive setup (with customizable configurations like full hydraulic drives for off-grid sites), the GNLW223D delivers impressive centrifugal forces to separate stubborn, fine solid particles from liquid phases.

Core Applications of the GNLW223D

The versatility and compact design of the GNLW223D make it a favorite across several specialized industries:

• Diamond Core Drilling & Mineral Exploration: In core drilling, mud circulation is vital for cooling drill bits, lubricating drill strings, and hoisting cuttings. The GNLW223D integrates seamlessly into compact solids removal units (SRUs) to continuously clean drilling fluids right at the rig site.

• Remote Field Operations: Because of its small footprint and lightweight build, it is frequently deployed in rugged terrains where traditional, heavy-duty fluid recycling equipment cannot easily go.

• Industrial Wastewater Treatment: Beyond drilling, the unit excels in low-flow, small-footprint industrial wastewater and sludge separation processes.

Key Efficacy and Advantages

Why do modern drilling contractors choose the GNLW223D over traditional mud sumps or oversized equipment? Its efficacy lies in several distinct performance advantages:

1. Superior Fine Solids Separation

As drilling progresses, drilling mud gets contaminated with fine rock flour and drill cuttings that standard shale shakers cannot filter out. The high-speed rotation of the GNLW223D generates intense G-forces (reaching up to nearly 2,500G), enabling the efficient extraction of ultra-fine solids. This keeps the drilling fluid clean, stable, and performing at peak levels.

2. Significant Cost Reductions and Fluid Recycling

By establishing a closed-loop mud recycling system, the GNLW223D allows teams to reuse a massive percentage of their drilling fluid. This drastically cuts down on the costs associated with purchasing new drilling chemicals, hauling fresh water to remote sites, and paying for hazardous waste disposal.

3. Compact Footprint and High Mobility

Space is often at a premium on exploration sites. Weighing much less than standard industrial units and sporting a streamlined 9-inch bowl architecture, the GNLW223D can be easily mounted on mobile trailers, skids, or modular containerized setups.

4. Rugged Durability and Wear Protection

Field conditions are notoriously harsh, but GN Solids Control builds the GNLW223D to last. Key components—such as the bowl and scroll—are crafted from high-grade duplex stainless steel via centrifugal casting. Additionally, vulnerable wear points are reinforced with replaceable tungsten carbide inserts or tiles to withstand abrasive mineral slurries.

The GNLW223D Decanter Centrifuge proves that good things come in small packages. By combining high-speed centrifugal technology with a rugged, portable footprint, it solves one of the most persistent bottlenecks in mineral exploration: efficient, reliable, and eco-friendly drilling fluid management.

For contractors looking to reduce their environmental footprint, minimize downtime, and maximize fluid reuse in the field, integrating the GNLW223D into their operations is a smart, forward-thinking investment.

Few Units of GNLW223D Mini Decanter Centrifuges (9-inch):
Featuring a compact 220mm bowl diameter, these centrifuges are engineered for applications requiring smaller processing capacities or operating within space-constrained environments. Their design makes them ideal for precise solid-liquid separation tasks and serves as an excellent platform for industrial R&D testing. Customers can choose from three configurations: Fixed Speed Control, Full Hydraulic Control, or Variable Frequency Drive (VFD) Control.

2 Sets of GNMS-1000B Self-Contained Mud Recycling Systems:
Offering higher capacity, these systems provide comprehensive mud management, meeting the demands of medium to large drilling rigs with robust multi-stage separation capabilities.

GN Solids Control manufactures two primary series of mud recycling systems:K Series: Cost-effective systems focused on mud cleaning and recycling. They require separate mud storage tanks and mixing units for full operation.

B Series: The self-contained solution chosen by this European client. B Series systems integrate mud recycling, storage, and mixing, providing a complete, ready-to-deploy package ideal for efficient drilling operations requiring excellent separation performance.

 

We are pleased to announce that four units of our GNLW554-VFD dewatering centrifuges are prepared for delivery to an overseas sewage treatment plant. These centrifuges are intended to support sludge separation and improve wastewater treatment operations, providing the plant with flexible solutions for managing a range of sludge conditions.

The GNLW554-VFD dewatering centrifuge is equipped with a variable frequency drive (VFD) system, which allows flexible control over bowl speed to adapt to different sludge characteristics and operational requirements. The centrifuge drum can be constructed from duplex stainless steel, offering enhanced strength and resistance to corrosion. In addition, the slag discharge ports are fitted with tungsten carbide wear-resistant liners, which help manage abrasive sludge and contribute to the extended service life of key components.

Optional remote monitoring interfaces are available, providing the possibility to integrate the centrifuges with the plant’s automation system. This feature allows operators to monitor performance data in real time, make adjustments to operational parameters as needed, and plan maintenance in a more convenient and organized manner. The optional interface supports smoother coordination with other equipment in the treatment process.

The centrifuges are designed to handle a wide range of sludge types, including municipal sewage sludge as well as industrial wastewater sludge. They are capable of substantial throughput, assisting in reducing sludge volume and supporting downstream treatment processes. The VFD control allows gradual start-up and shutdown, which may contribute to operational stability and reduce mechanical stress on the equipment.

With a compact and modular structure, the centrifuges can be installed in a variety of layouts and are compatible with both new and existing treatment facilities. Our engineering team has collaborated closely with the client to accommodate project-specific requirements, including structural design, operational parameters, and optional remote monitoring capabilities.

All four centrifuges have been manufactured and inspected according to established quality standards, with careful attention to detail throughout production. While the units are ready for shipment, the project reflects ongoing efforts to provide reliable and adaptable equipment suitable for diverse international wastewater treatment applications.

An efficient TBM slurry separation plant is the basis for the successful use of slurry-supported tunnel boring machines(TBM). The GN Slurry separation plant is popular for project of AVN Machines , Mix shields  or Shaft Sinking Machines . GN Solids Control utilize our shale shakers, desander desilter, as well as decanter centrifuges to processes separate and remove the excavated solids from the bentonite suspension – a mixture of water and thixotropic clay. The cleaned fluid is then transferred back to the slurry circulation.

An efficient TBM slurry separation plant is the basis for the successful use of slurry-supported tunnel boring machines(TBM). The GN Slurry separation plant is popular for project of AVN Machines , Mix shields  or Shaft Sinking Machines . GN Solids Control utilize our shale shakers, desander, desilter, as well as decanter centrifuges to processes separate and remove the excavated solids from the bentonite suspension – a mixture of water and thixotropic clay. The cleaned fluid is then transferred back to the slurry circulation.

Small Size:GNTBM-120B (120m³/h), GNTBM-260B (260m³/h),GNTBM-360B (360m³/h), GNTBM-500B( 500m³/h)

Big Size:GNTBM-1000B( 1000m³/h), GNTBM-1500B(1500m³/h), GNTBM-2000B (2000m³/h), GNTBM-2500B (2500m³/h), GNTBM-3000B (3000m³/h)

Process of TBM Slurry Separation Plant

1. A coarse shale shaker will remove big particles from the TBM Slurry.
2. A centrifugal pump will bake the slurry and feed to coarse hydrocyclones.
3. A dewatering shaker below the coarse hydro cyclones will drying the solids.
4. The other centrifugal pump will pump the slurry to fine hydrocyclones for separation of solids above 20 microns.
5. The fine shaker dewatering the solids discharge discharged from the fine hydrocyclones.
6. Decanter centrifuge will separate solids above 2-5 microns without chemical.
7. And the chemically enhanced decanter centrifuge will separate solids above 1 micron.

GN Solids Control has secured a substantial order for a complete 2600BBL drilling rig solids control system destined for Kuwait. This comprehensive project signifies the company’s growing prominence as a full-scope drilling fluids processing solution provider in the Middle East’s high-demand oilfield sector. The system’s delivery underscores GN Solids Control’s capability to meet the stringent technical and safety standards required by major regional operators.

As an officially listed solids control brand for Kuwait Oil Company (KOC), GN Solids Control is entrusted with delivering integrated mud circulation and processing systems. This status is a direct result of the company’s adherence to international certifications and its proven ability to engineer solutions tailored to specific regional operational and environmental challenges. The recent order further solidifies this position and demonstrates client confidence in its full-process capabilities.

The 2600BBL system represents a fully-loaded configuration designed for maximum efficiency and reliability. It integrates a complete suite of solids control equipment, including high-performance shale shakers, desanders, desilters, degassers, and centrifuges. This multi-stage arrangement ensures thorough solids removal and efficient drilling fluid recovery, which is critical for cost control and environmental compliance in large-scale drilling operations. The system is engineered to handle the high flow rates and demanding conditions typical of Kuwaiti desert drilling.

A critical feature of this system is its electrical control system, which has obtained ATEX certification for operation in explosive atmospheres. This certification is non-negotiable for equipment deployed in the Middle East’s stringent oilfield environments. It ensures that all electrical components meet the highest standards of safety, preventing ignition risks in areas where flammable gases may be present. This design focus directly addresses the paramount importance of operational safety in the region.

The project scope extends beyond supplying individual pieces of equipment. GN Solids Control is acting as a system integrator and total solution provider, responsible for the entire package from the surface-mounted solids control units to the overall system engineering and commissioning. This turnkey approach ensures seamless compatibility between all components and simplifies logistics for the end-user. By providing a fully integrated system backed by technical expertise, GN Solids Control enables more efficient and safer hydrocarbon extraction for its global clients. The company’s strategy focuses on delivering not just hardware, but optimized performance and operational peace of mind.

GN Solid Control has successfully executed the simultaneous export of two complete drilling rig solid control systems to clients in the Middle East and Europe. This delivery underscores the company’s established capacity to meet the stringent, high-performance demands of international energy markets.

The Middle East project involves a comprehensive solid control package for a 1500HP drilling rig, including shale shakers, mud cleaners, degassers, centrifuges, and integrated mud tanks. The European project comprises a tailored system for a 750HP rig, featuring shale shakers, mud cleaners, and large-decanting centrifuges. The synchronized completion and shipment of these two distinct systems demonstrate Guaneng’s robust project management, production scalability, and deep understanding of regional operational requirements.

For the Middle East, a region characterized by high-temperature operations and demanding drilling conditions, the system is engineered for maximum reliability, durability, and efficient solids removal to protect valuable drilling fluid. The configuration for the European market emphasizes precision separation, environmental compliance, and waste minimization to align with the region’s strict regulatory standards. The core equipment across both systems, such as the GNZS594J-SHBJ shale shakers and GNLW363CG decanting centrifuges, is built to API and CE certifications, ensuring global interoperability and safety.

This achievement is not an isolated event but a validation of GN’s sustained international recognition. The company’s products are already approved for use by multiple national oil companies in the Middle East, a testament to their performance in some of the world’s most challenging oilfields. Furthermore, securing orders from premium clients in Europe reflects a growing trust in the technical sophistication, quality consistency, and environmental performance of Chinese-manufactured high-end solid control equipment.

The success of these concurrent exports rests on several foundational strengths. First is technical prowess. GN holds numerous national patents and is China’s first solid control manufacturer to achieve API certification, a standard it has maintained through consecutive audits. Its equipment, from shale shaker screen technology to the wear-resistant alloy construction of centrifuge components, is designed for longevity and low maintenance, reducing total lifecycle cost for operators.

Second is a modular, system-based approach. GN provides not just individual machines but fully integrated, skid-mounted solutions. This modularity allows for rapid deployment, easy transportation, and flexible configuration to fit specific rig layouts and drilling programs, a critical advantage for both remote desert sites and space-constrained offshore platforms.

Third, and crucially, is a global service network. GN supports its international clients with localized service teams and partners in key regions, offering round-the-clock technical support, rapid spare parts logistics, and on-site training. This commitment to after-sales service builds long-term partnerships and turns one-time buyers into repeat customers.

In conclusion, the simultaneous delivery of these two systems to the Middle East and Europe marks a significant milestone for Guaneng Solid Control. It highlights the company’s role as a reliable, technology-driven global supplier capable of delivering customized, high-performance solutions that meet the distinct needs of diverse international markets. This project reinforces GN’s position as a trusted partner in the global energy sector, where efficiency, reliability, and environmental responsibility are paramount.