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In recent years, the screw press machine is more and more popular in the waste water treatment process and also in municipal sewage treatment along with the grille and sedimentation tanks. Comparing with the grille, the screw press can remove solids particles much more smaller, and comparing with sedimentation, the scree press in more compact in size and need less time. Of course, the three are still working together as a primary treating solution before future treatment as chemical or bio-treatments.

A screw press is also called a screw stacking machine, and it plays an important role in sewage treatment because of the features such as high efficiency, energy saving, and small footprint make it a commonly used equipment in the field of sewage treatment. Here are some reasons why it is more popular:

1. Efficient and energy-saving: The screw press has the characteristics of high efficiency and energy-saving, and its operating cost is much lower than that of traditional equipment. This is mainly because the structure is compact, occupies a small area, and does not require specialized staff.

2. Small footprint: Compared to traditional processing equipment, the footprint of the screw stacking machine is much smaller, which gives it greater advantages in some limited venues, such as urban center areas.

3. High degree of automation: Modern screw presses are equipped with an automation control system, which can achieve functions such as automatic feeding, dehydration, and unloading, reducing manual operation requirements and improving work efficiency.

4. Easy operation and maintenance: The screw stacking machine is easy to operate and maintain, reducing operating costs.

In a recent project for municipal sewage treatment contract in USA, the end user chose GN Separation as its supplier for a screw press with model GNDL303. It will soon be sent to the client’s project jobsite.

Discover Innovative Mining Solutions

We are excited to announce our participation in the upcoming Electra Mining Africa Partners Exhibition, taking place from September 2-6, 2024, in Johannesburg, South Africa. This prestigious event is a prime opportunity for industry leaders and professionals to explore the latest advancements in mining technology.

Meet GN at Our Booth

As a leading Chinese manufacturer of mining equipment, GN will be showcasing our state-of-the-art products at the exhibition. Our extensive range includes mining vibrating screens, vacuum pumps, and centrifuges. These products are designed to improve operational efficiency and productivity in the mining sector.

Engage with Our Experts

We invite you to visit our booth to experience our innovative solutions firsthand. Our team of experts will be on hand to provide detailed demonstrations and answer any questions you may have. This is a great chance to discuss potential collaborations and see how our equipment can meet your specific needs.

Plan Your Visit

Don’t miss this opportunity to connect with us at Electra Mining Africa Partners Exhibition. Whether you are looking for new equipment or seeking expert advice, we are here to assist you. We look forward to welcoming you to our booth and exploring how we can support your mining operations.

Mark your calendars and join us in Johannesburg for an event filled with insights and innovations in the mining industry. See you there!

As one of the leading solids control manufacturers in the world, the drilling mud solids control system is always one of GN’s core products. It is obvious that GN’s name is also after the Solids Control.
Since year 2010, GN became the first solids control manufacturer in China as an API certified manufacturer in fields of solids control, has GN delivered its products to more than 70 countries in the world, including the solids control equipment, solids control systems and shaker screens. This time, just recently, GN manufactured a solids control system for a drilling site in Africa. This is a complete system combined by following equipment:

1.Mud tanks. This order is for 2 sets of solids control systems for 2 sets of 1500HP drilling rig, which is a middle sized oil drilling rig with shale shaker tanks, intermediate tanks, suction tanks, mixing tanks, reserve tanks and trip tanks.

2.All related solids control equipment for separation. As is known to all, in a complete mud solids control system, there are 4 steps for solids control and 5 steps for separation, and the 4 is counted among the 5 which are shale shaker, desander cyclones, desilter cyclones and decanter centrifuge. And the 5th separation equipment is the degasser. All of them are involved in this solids control system and all equipment are manufactured by GN Solids Control.

3.All auxiliary equipment for transferring the drilling mud. Besides the separation equipment, GN also provides the equipment for transferring and other necessary functions in a complete solids control system, such as mud agitators, mud guns, and centrifugal pumps for feeding the cyclones and for jet mixing.

Each year, GN makes tens of such mud recycling systems for drilling contractors, drilling rig manufacturers, oil service companies and drilling mud plants owners. GN equipment are also sold solo without mud tanks, for example, annually, GN makes and sell hundreds of shale shakers and decanter centrifuges and tens of vertical cuttings dryers.

In the realm of environmental technology, the efficient management of sludge and wastewater is a critical aspect that directly impacts the sustainability of our urban ecosystems.Hebei GN separation , a leading innovator in the field of separation and conveying equipment, has recently made a significant stride in the global market by delivering three state-of-the-art GNLW364 sludge dewatering centrifuge  to a European municipal wastewater treatment plant. This innovative solution not only demonstrates GN’s technological prowess but also underscores the importance of sophisticated machinery in enhancing sludge  treatment processes.

The GNLW364 decanter centrifuge  operates on the principle of centrifugal force, a force that acts radially outward from the axis of rotation. As sludge is fed into the machine, it is spun at high speeds, causing the denser solids to separate from the lighter liquid phase due to the differential forces acting upon them. The machine’s design, featuring double-phase stainless steel construction and precision-cast components, ensures durability and optimal performance. The variable frequency drive (VFD) system allows for adjustable rotational speed, which significantly enhances the separation efficiency and minimizes the size of separated particles.

The use of advanced PLC control panels and sensors further contributes to the machine’s intelligence. These features monitor the equipment’s operational status in real-time, ensuring continuous optimization and preventing potential issues. The durable screw convyor and the carbon steel sleeve reduce maintenance costs, making the GNLW364 an investment that pays off in the long run.

The deployment of the GNLW364 in sludge dewatering  projects in overseas  showcases its numerous advantages. First and foremost, the motor is  high efficiency, combined with wear-resistant material and advanced sensor technology, ensures stable and reliable operation, thereby maximizing the treatment capacity of the wastewater plant. The machine’s ability to handle a wide range of sludge types and concentrations makes it a versatile solution for various municipal administration and industrial applications.

Moreover, the GNLW364’s ability to simultaneously and dewater sludge, as well as treat wastewater and waste oil, highlights its economic and environmental benefits. By optimizing the overall process,GN 364 centrifuge  not only reduces operational costs but also contributes to a cleaner environment. The company’s commitment to customization, as seen in their tailored solutions for food processing plants, underscores their dedication to meeting the diverse needs of their clients.

While GN  is making strides in the global market, it is essential to acknowledge the contributions of other industry leaders like flottweg and Alfa Laval . Their offerings, such as Flottweg’s HTS Decanter® and Alfa’s ALDEC G3 VecFlow system. also exemplify the quest for energy-efficient and cost-effective solutions. These brands, alongside GN separation , are driving innovation in the field of sludge dewatering  technology, continuously pushing the boundaries of what is possible.

In conclusion,the successful implementation of three GNLW364 decanter centrifuge in an overseas sludge dewatering project highlights the company’s commitment to technological excellence and customer satisfaction. The machine’s robust design, intelligent control systems, and adaptability to various sludge conditions make it a standout choice in the global market. As the demand for efficient and sustainable wastewater treatment solutions continues to grow, the collaboration between GN  and other international brands, such as international brand, is expected to further propel the evolution of solid-liquid separation technology, ensuring a cleaner and greener future for all.

Successful Integration of GNLW364 Centrifuges

We are pleased to report the successful integration of three GNLW364 dewatering decanter centrifuges in a prominent overseas municipal sludge dewatering project. These T-series centrifuges, featuring a beach angle of 8.5 degrees, are specifically designed to handle the demanding requirements of municipal and industrial wastewater sludge dewatering and thickening.

Exceptional Dewatering Capabilities

The GN T-series decanter centrifuge is renowned for its ability to efficiently separate materials with large particle sizes, significant density differences, low viscosity, and high concentrations. These centrifuges boast high treatment capacities and deliver superior dryness compared to traditional methods. The addition of flocculants aids in the aggregation of fine particles, further enhancing the dewatering process.

Versatile Applications Across Industries

Our decanter centrifuges are highly versatile, making them ideal for a wide range of applications, including the treatment of drilling mud, oily sludge, mineral washing water, and various types of industrial wastewater. They are also effective in managing municipal sewage, river and lake sludge, and other challenging waste streams. GN decanter centrifuges provide reliable performance and durability in diverse industrial environments.

We are proud of this achievement and are committed to delivering cutting-edge solutions for sludge and wastewater treatment. For more details on how GN SEPARATION can address your specific needs, please contact us.

Decanter centrifuge is one of the most popular machines for separation in different industries and for a wide range of applications. The sludge treatment is one of them. In the modern life, there are many kinds of sludge, most of them are damage for the environment. That’s why it is not only necessary but also a must to treat the sludge before discharge. Decanter centrifuge is one of the most important step during sludge separation.

1.What is a Decanter centrifuge: decanter centrifuge is quite efficient in solids and liquid separation, for removing particles from 2 to 5 microns. GNLW554 is a 2 phase centrifuge with a large centrifuge length and diameter ratio, which is suitable for the waste water treatment and sludge treatment. And GN engineer also designed an ideal angle for a better performance.

2.Is it possible to separate the oil and water by the centrifuge? Yes. Besides the 2 phase centrifuge for separating the solids out of liquid, GN Separation also makes the 3 phase centrifuge for separating the solids, water and oil. And according to the clients’ requests, GN also have a disc stack for this similar purpose. Given detailed information about the material, GN engineer will help to recommend most suitable solution.

3.What shall we do if the solids are too fine for centrifuge? Here a flocculating unit is in need to add some polymer into the material. Then the solids particles will be large enough for the centrifuge to choose out. And for the water treatment, GN also have screw press as another popular option.

If you have similar projects or just would like to know more about this industry, welcome to contact GN for more detailed information and suggestion. And GN Company in China, in Australia and in USA are always open for visitors all over the world.

We are excited to announce the shipment of our 22-inch large drum decanter centrifuge, Model GNLW554, to an overseas customer. This state-of-the-art equipment, known as a horizontal screw decanter centrifuge, plays a crucial role in the industrial solid-liquid separation sector.

Versatile Applications

The GN decanter centrifuge is designed to cater to various industrial needs by offering three distinct types: dewatering, separation, and clarifying centrifuges. Each type is tailored to handle specific material characteristics, ensuring optimal performance in diverse industries.

Advanced Technology

One of the standout features of the GNLW554 model is its integration of centripetal pump technology. This advanced mechanism enables the centrifuge to perform efficient 3-phase separation, effectively separating two liquid phases and solid particles. This versatility makes it an invaluable asset for industries requiring precise and reliable separation processes.

Commitment to Quality

At GN, we are committed to delivering high-quality, innovative solutions to our customers worldwide. The successful shipment of the GNLW554 model underscores our dedication to meeting the evolving demands of the global market, providing cutting-edge equipment that enhances operational efficiency.

We look forward to seeing the positive impact of the GNLW554 decanter centrifuge on our customer’s operations and continuing to support the industrial solid-liquid separation industry with our advanced technologies.

In a recent project, GN Separation has provided to a client in Europe a set of dewatering screw press unit for sludge treatment system for a client in Europe. This system contains 2 sections: a chemical dosing unit and a screw press machine. And the client ordered a comparably large model of both the chemical dosing and the screw press.

1.Chemical dosing unit. The chemical dosing unit is used for adding chemicals into the material to be treated, normally the material is in liquid form containing some extra fine particles to be removed. The smaller the particles are, the more difficult to separate them out. That’s why the chemical dosing unit is involved into the system. GN chemical dosing unit can be used to add both liquid chemicals and chemical in powder into the material based on the material’s characters and requested result after interaction. The dosing pumps can be controlled manually and automatically by choosing the modes on the control panel. There are several mixers used in the chemical dosing unit for prepare the liquid.

Based on jobsite request, GN can make chemical dosing unit of different capacities, which means, the model of chemical dosing unit is designed based on the volume of solutions, and the density of chemical is determined by the dosing pump, by inputting some data into the control system.

2.Screw press machine. The screw press is used to remove the particles from the liquid. After chemical dosing, the extra fine particles become large enough for the screw press to remove them. The working principle of the screw press is like to squeeze water from a towel. It is driven by a motor and inside there is a screw for squeezing. GN also has several models for option for matching different treating capacities.

Welcome to send more information about your project to GN team for a formal quote.

GN Solids Control is the head quarter of GN Solids America, which is a brand for solids control and waste management equipment and systems born in China and got popular in America since 12 years ago. As a responsible manufacturer, GN Solids Control and GN Solids America won the good reputation by providing clients with high quality equipment and good service.

Each year, under name of GN Solids Control and GN Solids America, GN group attends several exhibitions to show the market with GN core products. There are three exhibitions GN always attends during each year, including the CIPPE in Beijing in each March, OTC in Houston in May and ADEPEC in Abu Dhabi in November.

In year 2024, GN Solids America attended OTC showing following equipment:

1. Decanter centrifuge GNLW363D. It is a best seller size in oil and gas industry for both solids control and waste management, comparing with GNLW363C, GN has improved some small details and makes the centrifuge more compact in structure. And the GNLW363D resumes to be of high quality with all GN centrifuges’ features as the Duplex stainless steel for the rotating bowl, tungsten carbide tiles for centrifuge propeller protection, SKF bearings and VFD control panels. GN can provide decanter centrifuges together with control cabinets per ATEX, IECEX and etc.
2. Drilling mud shale shaker GNZS594J. The shale shaker is used for the first stage of drilling mud treatment in a solids control system, and they are used to remove the largest amount of drilling solids, GNZS594J shale shaker has 4 pieces of shaker screens with a total screen area of 2.74 square meters, and this shale shaker can work at a hgh G force up to 7.5G.
3. Solids Vacuum Pump. Vacuum pump is called vacuum because it is driven by air, no need for any electricity. By using an air compressor, it can suck in the material with a negative force and push out the material with a positive force. It is also called solids pump because it can handle material with a high solids content and with large particle sizes.
4. GN also showed the shaker screens.

Welcome to contact GN for more information.

Innovative Separation Technology

GN is excited to announce the recent export of our GNLW363D-FHD fully hydraulic decanter centrifuge to a key client in Asia. As pioneers in the design and manufacture of decanter and three-phase centrifuges, GN has been setting industry standards since the 19th century. Our centrifuges operate on time-tested principles but are continuously enhanced with modern technology and materials.

Customized Solutions and Quality Materials

At GN, we understand that each separation task is unique. Therefore, we design our centrifuges to meet specific operational requirements, ensuring maximum efficiency and reliability. The GNLW363D-FHD features high-quality, durable materials that improve performance and extend the equipment’s lifespan. Our centrifuges excel in a variety of applications, from dewatering and thickening sludges to clarifying liquids and separating three-phase mixtures.

Advanced Control Systems

A standout feature of GN centrifuges is our integrated PLC and electrical control systems, designed in-house. This capability gives us a competitive edge in control technology, enhancing the performance and reliability of our equipment. Our control systems provide precise monitoring and adjustment, ensuring optimal separation results.

Wide Range of Applications

GN centrifuges are versatile, serving numerous industries with applications such as dewatering sludge, thickening mud, clarifying liquids, and classifying solids in wet suspensions by grain size. They are also adept at separating solids based on different densities and managing complex three-phase mixtures involving two immiscible fluids and a solid phase.

The GNLW363D-FHD fully hydraulic centrifuge exemplifies GN’s dedication to delivering superior separation solutions. With a focus on innovation and quality, we continue to meet the evolving needs of our clients worldwide, providing state-of-the-art centrifuge technology that enhances operational efficiency and productivity.