Category Archives: Decanter centrifuge

Four Packages of Mini Decanter Centrifuges Delivered to Europe

GN Separation is thrilled to announce the timely and successful delivery of four sets of Mini Decanter Centrifuges to a European client. These centrifuges are intended for solids-liquid separation in the context of mineral exploration mud treatment, representing another significant achievement for GN in providing compact yet highly efficient separation solutions to the global market.

Product Features and Benefits

GN’s Mini Decanter Centrifuge is tailored for small-scale and pilot-scale operations, while still retaining the core benefits of full-sized decanter centrifuges. Leveraging high-speed centrifugal force, this equipment can continuously separate fine solids from drilling mud. This process reduces the solids content in the liquid phase, enabling the reuse or further treatment of the clarified fluid. Additionally, the separated solids become easier to handle, transport, or dispose of, thereby greatly enhancing overall site efficiency.

For this particular project, the four centrifuge units were delivered as compact and modular packages. This design facilitates easy transportation, installation, and integration into the customer’s existing process flow. The skid-mounted construction minimizes the need for on-site civil engineering work, making the system ideal for temporary or mobile exploration sites. Despite their compact size, these units are engineered to deliver stable performance, low vibration, and reliable operation even under continuous duty conditions.

Another notable advantage of GN’s mini decanter centrifuges is their operational flexibility. The adjustable bowl speed and differential speed enable the equipment to adapt to variations in slurry density, particle size distribution, and flow rate—common issues encountered in exploration drilling mud treatment. The robust mechanical design, coupled with the use of wear-resistant materials for critical components, ensures a long service life and reduces maintenance requirements.

Project Execution and Quality Assurance

Throughout the project, GN’s technical and project teams collaborated closely with the customer to gain a thorough understanding of the application requirements and operating conditions. Based on this information, the equipment configuration was optimized to ensure reliable separation performance while maintaining energy efficiency. Before shipment, all units underwent rigorous inspection and test runs to verify their mechanical integrity and operational stability.

Broader Implications and Future Commitments

The successful delivery of these four mini decanter centrifuges to Europe further underscores GN Solids Control’s ability to provide customized solids control and separation solutions across a diverse range of industries, including mining, exploration drilling, environmental protection, and industrial wastewater treatment. As the global demand for compact, efficient, and environmentally friendly separation technologies continues to rise, GN remains dedicated to continuous innovation and customer-centric engineering.

Looking ahead, GN Separation is committed to supporting customers worldwide with reliable equipment, professional technical assistance, and proven solutions for solids-liquid separation challenges in both large-scale and specialized applications.

4 Pacakge Baby Decanter Centrifuge for Solids Liquid Separation to Europe

GN Separation has recently completed the delivery of four packages of Baby decanter centrifuges to a European customer, designed for solids-liquid separation in mineral exploration drilling mud applications. This shipment marks another successful application of compact decanter centrifuge technology in the mining and exploration sector. Continue reading

GN Sewage Treatment Decanter Centrifuge for Overseas Customer

GN Separation has recently completed the delivery of a sewage treatment decanter centrifuge to an overseas customer, playing a pivotal role in a municipal and environmental protection project centered on wastewater sludge dewatering. This specialized equipment is engineered to boost the customer’s efficiency in sludge management, while also complying with the ever-tightening environmental regulatory standards.

With the ongoing growth of urbanization and industrial activities, wastewater treatment plants are increasingly facing challenges such as surging sludge production, rising disposal expenses, and the imperative to adhere to stringent environmental regulations. Sludge dewatering stands as a critical process in wastewater treatment, as it diminishes sludge volume, streamlines its transportation and disposal, and fosters more sustainable plant operations. In this particular project, the GN decanter centrifuge functions as a cornerstone for sludge dewatering, coming into play after the biological and physical-chemical treatment stages.

The GN sewage treatment decanter centrifuge supplied is crafted to deliver dependable performance amidst the varied sludge conditions typically found in wastewater treatment plants. Its horizontal decanter centrifuge design facilitates uninterrupted solid-liquid separation and guarantees uniform dewatering outcomes. By harnessing centrifugal force, the equipment adeptly separates solid particles from the liquid phase, producing a dewatered sludge cake that is primed for subsequent processing and a clear centrate that can be reintroduced into the treatment system.

To cater to the customer’s specific operational preferences and process requirements, the decanter centrifuge is outfitted with a VFD (Variable Frequency Drive) control system. This system empowers operators to fine-tune the bowl speed and differential speed, thereby optimizing the separation performance based on the sludge’s characteristics, such as its solids concentration and viscosity. This adaptability not only enhances operational flexibility during regular activities and seasonal shifts but also promotes energy efficiency across diverse working conditions.

Environmental sustainability was a paramount consideration throughout the equipment’s design and selection journey. By enabling efficient sludge volume reduction, the decanter centrifuge aids in mitigating the environmental repercussions linked to sludge transportation and disposal. The decrease in sludge volume leads to a reduction in hauling frequency and disposal demands, a factor of growing significance as environmental regulations and sustainability expectations intensify across numerous regions.

Furthermore, the decanter centrifuge is constructed with durability and ease of maintenance as top priorities. Its key components are meticulously chosen to endure the rigors of wastewater sludge applications, ensuring enduring reliability and hassle-free maintenance. This strategy enables customers to sustain consistent plant performance while effectively managing lifecycle costs.

This overseas project highlights GN Separation’s unwavering dedication to the environmental protection and wastewater treatment sectors. By providing sludge dewatering equipment solutions, GN Separation partners with global clients to confront real-world challenges in wastewater management. Drawing on its technical prowess, versatile equipment configurations, and prompt project support, GN Separation is committed to contributing to wastewater treatment endeavors that prioritize efficiency, environmental responsibility, and operational reliability.

GN Sewage Treatment Decanter Centrifuge for Overseas Customer

GN Separation has successfully delivered a batch of sewage treatment decanter centrifuges to an overseas customer engaged in large-scale wastewater treatment operations. This project once again demonstrates GN Separation’s capability to provide reliable, customized separation equipment that meets stringent international standards while addressing complex, real-world operating conditions. Continue reading

GN Delivers 7 Units Decanter Centrifuge for Chemical Salt Dewatering

GN Separation is overjoyed to announce the recent dispatch of seven decanter centrifuges to a customer engaged in the chemical processing industry, with a particular focus on chemical salt production. These centrifuges are poised to assume a pivotal role in the continuous dewatering of a diverse range of inorganic chemical salts, a process that is highly dependent on efficient solid-liquid separation and unwavering reliability.20251203 Chemical Decanter Centrifuge

Chemical Salt Production Process and Equipment Significance

The production of chemical salts typically involves a series of steps, including crystallization, washing, and separation. The performance of the dewatering equipment during these stages has a direct and profound impact on the purity of the final product, the overall production efficiency, and the stability of the entire plant. GN’s decanter centrifuge solutions have been crafted with meticulous attention to detail, specifically designed to excel in these demanding conditions.

20251203 Crystal Salt Dewatering Centrifuge

Distinctive Challenges in Chemical Salt Dewatering

Dewatering chemical salts poses unique challenges for centrifuges due to the inherent properties of the materials involved. Salts such as sodium chloride, potassium chloride, sodium sulfate, and ammonium salts are known for their high density, sharp crystal edges, and corrosive chemical nature. These characteristics demand centrifuges that can withstand high levels of abrasion, resist corrosion caused by chloride-rich brine, and maintain stable operation under the intense conditions of high G-forces.

To overcome these challenges, GN’s chemical decanter centrifuges are constructed using duplex stainless steel or equivalent anti-corrosion materials for all key components that come into contact with the process fluid. Critical wear surfaces are further reinforced with tungsten carbide, ensuring exceptional long-term durability. This robust construction enables the equipment to operate continuously with minimal maintenance, which is an absolute necessity for chemical plants that operate around the clock.

Superior Separation Performance

During the dewatering process, the centrifuge is tasked with efficiently separating a large volume of crystal slurry while minimizing the moisture content of the discharged solids. Achieving the right level of dryness is not only crucial for enhancing product quality but also significantly reduces the energy consumption of downstream drying systems.

GN decanter centrifuges are equipped with high rotational speeds and optimized bowl designs that generate powerful centrifugal forces. This facilitates the rapid separation of crystals from the mother liquor. The stable and precisely controlled differential speed of the screw conveyor further enhances the dryness of the cake. Operators have the flexibility to fine-tune the performance based on variations in feed concentration or crystal size, ensuring consistent product quality even when production conditions are subject to fluctuations. This improved separation efficiency also leads to higher production throughput, enabling chemical plants to operate more efficiently and cut down on operational costs.

Cutting-Edge Control System for Enhanced Functionality

The functionality of the centrifuges is significantly enhanced when integrated with GN’s state-of-the-art control system. For the seven units delivered to the customer, GN has incorporated intelligent control technology that allows for real-time adjustments of bowl speed, differential speed, torque load, and feed rate. This high level of automation is of utmost importance in chemical salt operations, where changes in slurry density, crystal load, or temperature can have a significant impact on equipment efficiency.

The control system continuously monitors vibration, temperature, and other operating parameters, thereby enhancing operational safety and preventing potential failures. This ensures long-term stable operation, minimizing downtime and reducing maintenance costs.

GN’s Dedication to the Chemical Industry

20251203 GN VFD Decanter Centrifuge Control Panel

The delivery of these seven decanter centrifuges is a testament to GN’s unwavering commitment to providing the chemical industry with world-class solid-liquid separation technologies. With extensive experience in sectors such as oil and gas, mining, industrial wastewater treatment, and environmental engineering, this project further cements GN’s position as a leading player in the chemical salt processing field.

As the demand for high-purity salt continues to grow and there is an increasing emphasis on production efficiency and reliability, GN is committed to expanding its technical capabilities. The company will persist in supplying advanced centrifuge solutions that are tailored to the specific needs of chemical manufacturers across the globe.

GN separation eagerly looks forward to the opportunity to support more customers with efficient, reliable, and durable decanter centrifuge systems for chemical salt dewatering and a wide array of other industrial separation applications.

GN Delivers 7 Units Decanter Centrifuge for Chemical Salt Dewatering

GN Separation is pleased to announce the successful delivery of seven  decanter centrifuges to a chemical processing customer specializing in chemical salt production. These units will be deployed for the continuous dewatering of various inorganic chemical salts—an application that requires high-efficiency solid–liquid separation, operational reliability, and long-term mechanical durability. Chemical salt production typically involves crystallization, washing, and centrifugation stages; therefore, the performance of the dewatering equipment has a direct impact on product purity, production stability, and overall plant efficiency. GN Separation’s decanter centrifuge solutions are engineered specifically to meet these demanding industrial conditions. Continue reading

Four GNLW554-VFD Dewatering Centrifuges Set for Shipment to Overseas Sewage Treatment Plant on 28 November 2025

We’re thrilled to announce that four GNLW554-VFD dewatering centrifuges are primed and set for dispatch to an overseas sewage treatment plant on 28 November 2025. These centrifuges are purpose-built to streamline sludge separation and boost the overall efficiency of wastewater treatment operations at the plant, offering adaptable solutions to tackle a wide array of sludge conditions.

Cutting-Edge Features for Peak Performance

The GNLW554-VFD dewatering centrifuge boasts a variable frequency drive (VFD) system, a game-changer in centrifuge technology. This feature grants precise and flexible control over the bowl speed, enabling the centrifuge to effortlessly adjust to varying sludge characteristics and specific operational demands. The centrifuge drum, crafted from duplex stainless steel, is a testament to durability. It significantly bolsters the machine’s strength and offers exceptional resistance to corrosion, ensuring it can withstand even the harshest of environments and deliver long-lasting performance.

Additionally, the slag discharge ports are outfitted with tungsten carbide wear-resistant liners. These liners are masters at handling abrasive sludge, minimizing wear and tear on crucial components and extending the centrifuge’s service life, thus reducing long-term operational costs.

Optional Remote Monitoring: Elevating Efficiency

To take operational efficiency to new heights, these centrifuges come with optional remote monitoring interfaces. These interfaces seamlessly integrate with the plant’s existing automation system, giving operators real-time access to performance data. With this information at their fingertips, operators can swiftly make necessary adjustments to operational parameters and plan maintenance tasks in a more organized and convenient way. This feature also fosters smoother coordination with other equipment in the wastewater treatment process, leading to an overall improvement in plant performance.

Versatility in Handling Diverse Sludge Types

Engineered with versatility in mind, these centrifuges can handle a broad spectrum of sludge types, from municipal sewage sludge to industrial wastewater sludge. Their substantial throughput capacity plays a pivotal role in reducing sludge volume and supporting downstream treatment processes. The VFD control system ensures a gentle start-up and shutdown, which not only contributes to operational stability but also minimizes mechanical stress on the equipment, reducing the likelihood of breakdowns and associated maintenance expenses.

Compact and Modular Design: Easy Installation Anywhere

The compact and modular design of these centrifuges makes installation a breeze. They can be arranged in various layouts, making them suitable for both newly constructed and existing treatment facilities. Our dedicated engineering team has collaborated closely with the client to customize the centrifuges to meet project-specific requirements. This includes tailoring the structural design, fine-tuning operational parameters, and integrating optional remote monitoring capabilities to guarantee optimal performance and seamless integration with the plant’s existing systems.

Rigorous Quality Control: Ensuring Reliability

All four centrifuges have undergone a stringent manufacturing and inspection process, adhering to established quality standards. Throughout production, every detail has been scrutinized to ensure the highest level of quality and reliability. With the units now ready for shipment, this project underscores our unwavering commitment to providing dependable and adaptable equipment for a wide range of international wastewater treatment applications.

Anticipated Impact on the Sewage Treatment Plant

The arrival of the four GNLW554-VFD dewatering centrifuges is expected to have a profound impact on the plant’s sludge handling capabilities. They will help maintain consistent and efficient operations, significantly reduce sludge volume, and contribute to broader environmental and wastewater treatment goals. This delivery further solidifies our dedication to supplying high-quality solutions that empower treatment facilities to achieve stable performance while meeting ever-evolving operational and environmental requirements. We eagerly await the positive transformation these centrifuges will bring to the plant’s operations and the environment at large.

4 Units GNLW554-VFD Dewatering Centrifuge Ready for Overseas Sewage Treatment Plant

GN Separation is pleased to announce that four units of GNLW554-VFD dewatering decanter centrifuges are now prepared for shipment to an overseas sewage treatment facility. These high-capacity machines are engineered to enhance sludge dewatering efficiency, strengthen wastewater treatment performance, and offer the plant greater flexibility in managing varying sludge conditions. Continue reading

GN Ships 13 Units of 5-Deck Stack Vibrating Screens for Ilmenite Ore Classification

GN Separation is thrilled to share the news of the successful dispatch of 13 five-deck stack vibrating screens. These screens are destined for a significant mineral processing project that focuses on the grinding and classification of ilmenite ore. The equipment, as vividly showcased in the project images named “Frequency Stack Screen” and “Stack Vibrating Screen for Ilmenite,” is set to be installed in the customer’s fine classification circuit. Its primary role is to guarantee stable control over particle sizes and to elevate the overall efficiency and performance of the entire processing operation.

Visual Representation of Equipment

Fig.1 High Frequency Stack Screen
This image provides a clear view of the high – frequency stack screen, highlighting its intricate design and compact structure that are essential for its efficient functioning in the classification process.

Fig.2 Stack Vibrating Screen for Ilmenite
The second image offers a detailed look at the stack vibrating screen specifically designed for ilmenite ore. It showcases the features that make it well – suited for handling the unique characteristics of this type of ore.

Tailored Design for Specific Applications

This particular batch of equipment has been meticulously engineered for the fine classification of ilmenite slurry within a closed – circuit grinding system. Each unit boasts a compact five – deck structure, a design innovation that allows for multiple layers of screening to take place within a single machine frame. This not only maximizes the screening surface area relative to the overall footprint of the equipment but also makes it an ideal solution for facilities where installation space is at a premium and requires careful planning. When compared to conventional screening approaches, the multi – deck arrangement offers a more efficient use of equipment layout, leading to a more streamlined and organized process flow within the plant.

Focus on Key Performance Factors

During the design and manufacturing phases, GN has placed a strong emphasis on several critical factors. Stability is of utmost importance to ensure that the equipment operates consistently without any unexpected fluctuations. Screening accuracy is another key aspect, as precise classification is essential for the subsequent stages of the mineral processing. Additionally, the equipment has been designed to be adaptable to various feed conditions, which can vary depending on the source and nature of the ilmenite ore. The high – frequency vibration system is a marvel of engineering, specifically developed to support the consistent stratification of fine particles. This helps in maintaining a stable cut size, which is crucial for achieving uniform classification results. To withstand the abrasive nature of ilmenite ore, the structure of the equipment is constructed using high – quality abrasion – resistant materials. Moreover, key components have been carefully configured to ensure durability during continuous operation, minimizing the need for frequent repairs and replacements.

Significance in Grinding Circuits

In the context of grinding circuits, precise classification plays a pivotal role in determining the overall performance of the process. The five – deck stack vibrating screen serves a vital function by separating fine particles, which are ready for downstream concentration processes, from coarser material that requires further grinding. A stable classification process has far – reaching benefits. It enhances the grinding efficiency by ensuring that the grinding equipment is only processing material of the appropriate size. It also improves the management of the circulating load, which is the amount of material that is recirculated back to the grinding mill for further processing. Furthermore, a predictable feed size distribution is achieved, which collectively contributes to a smoother and more efficient production flow in ilmenite beneficiation.

Ease of Maintenance and Longevity

To ensure the long – term and trouble – free operation of the equipment, GN has incorporated a modular screen panel design. This innovative design allows for quick and easy replacement of screen panels when they wear out or need to be changed for different processing requirements. Additionally, the vibration system and distribution manifold have been strategically arranged to minimize downtime during routine service operations. This means that maintenance tasks can be carried out more efficiently, reducing the overall impact on the production schedule and ensuring that the equipment remains operational for longer periods.

Stringent Quality Assurance

Before being shipped to the customer, each of the 13 units underwent a rigorous series of factory tests. These tests included comprehensive checks on vibration performance to ensure that the equipment vibrates at the correct frequency and amplitude for optimal screening. Structural inspections were carried out to verify the integrity of the equipment’s frame and components, ensuring that it can withstand the stresses and strains of continuous operation. Assembly verification was also conducted to confirm that all parts are properly installed and aligned. GN’s quality control procedures strictly adhere to internal standards that have been specifically developed for mineral separation equipment. This ensures that every machine delivered to the customer meets the project’s exact technical requirements, providing peace of mind and confidence in the equipment’s performance.

GN Separation’s Unwavering Commitment

The deployment of these stack vibrating screens is a testament to GN Separation’s unwavering commitment to providing top – notch equipment solutions for mineral classification and fine particle processing. With a wealth of experience in screening, solid – liquid separation, and mineral concentration support systems, GN has established itself as a reliable and innovative player in the industry. The company strives to deliver equipment that not only meets but exceeds operational expectations across projects of all scales, whether it’s a small – scale pilot project or a large – scale industrial operation.

Ongoing Support and Future Plans

GN Separation will continue to provide comprehensive support to the client throughout the entire lifecycle of the project, from the initial installation phase to the commissioning and subsequent operational phases. The company’s team of experts will be on hand to offer technical assistance, troubleshooting, and optimization advice to ensure that the equipment operates at its full potential. Looking ahead, GN remains focused on upgrading its product line by incorporating the latest technological advancements. The company is also actively developing new technologies for fine classification to stay at the forefront of the industry. GN aims to serve a wide range of mineral processing industries, including ilmenite, zircon, silica sand, and other industrial minerals, providing customized solutions to meet the unique needs of each client.

For more in – depth information about GN’s stack vibrating screens and mineral separation solutions, please don’t hesitate to reach out to our technical team or visit our product center. We are always ready to assist you and provide you with the best possible solutions for your mineral processing requirements.