Author: gnadmin

At GN Separation, we understand the importance of efficient and reliable equipment for material processing in various industries. One of our standout products, the GN High Shear Circular Screen, delivers exceptional performance for applications such as classification, coarse separation, and dewatering. Ideal for materials like silica sand, feldspar, coal, iron ore, gold ore, and more, this equipment ensures optimal results in fine material screening.

How the GN High Shear Circular Screen Works

The GN High Shear Circular Screen uses a single excitation source – a vibration motor – to drive the screen’s motion. This vibration motor generates an inertia force that fluctuates in a sinusoidal pattern around the fixed axis, producing a circular vibration in the screen deck assembly. The overall assembly of the screen deck is arranged in a single layer and multiple sections, all powered by one vibration motor. This unique design enables superior efficiency, energy savings, and high processing capacity.

Features of the GN High Shear Circular Screen

1. High Screening Area: The GN High Shear Circular Screen offers a large screening area, ensuring that materials are processed efficiently, even in high-volume applications.

2. Adjustable Screen Deck Angle: With the ability to adjust the screen deck angle, this screen offers flexibility to suit various material types and processing conditions.

3. Compact and Robust Structure: The screen’s compact structure allows for easy integration into existing systems, while its durable construction ensures long-lasting performance.

4. Advanced Vibration Mode: The innovative vibration mode maximizes energy efficiency and improves screening accuracy. This design allows for effective separation of fine particles, with high screening efficiency and large processing capacity.

5. Energy-Efficient Operation: The GN High Shear Circular Screen is engineered to be energy-efficient, with low power consumption and minimal dynamic load. This helps to reduce operating costs while maintaining peak performance.

6. Reliable and Stable Performance: This equipment is designed for stability and reliability, offering consistent operation with minimal downtime.

7. Flexible Screen Mesh Options: The screen uses flexible polyurethane fine screen mesh with a high opening rate (28-45%), ensuring excellent separation efficiency and an extended lifespan of more than six months.

GN High Shear Circular Screen Specifications

Model	GNYK1028	GNYK1440
Total Screening Area	2.8㎡	5.6㎡
Vibration Amplitude (Double)	2-4mm	2-4mm
Total Installed Power (output)	1×1.84kW	1×2.3kW
Vibration Frequency	25Hz	25Hz
Screen Inclination	23°-27°	23°-27°
Mesh Size	0.045 – 2 mm	0.045 – 2 mm
Screen Size (Length × Width)	700×1050 (mm)	840×1450 (mm)
Number of Screen Mesh	4	5
Processing Capacity (Dry Ore m³/h)	3～20	4～30

Why Choose the GN High Shear Circular Screen?

• Reliable Vibration Source: The high-quality imported vibration motor (Martin motor or OLI motor) ensures reliable operation and extended service life.

• Large Processing Capacity: With a design focused on maximizing screening efficiency, the GN High Shear Circular Screen is capable of handling larger volumes of material, making it ideal for high-demand industries.

• Energy Saving & Low Maintenance: The equipment’s design reduces power consumption, while its durable construction minimizes the need for frequent maintenance, enhancing operational efficiency and reducing downtime.

• Superior Durability: The screen box assembly undergoes overall heat treatment, ensuring it can handle high vibration intensity over extended periods of use. The surface treatment, which includes sandblasting and the application of heavy anti-corrosion paint, enhances the screen’s resistance to wear and tear.

• Enhanced Screening Effect: The addition of reconstituted-slurry spray water between each section of the screen deck improves the material’s screening effect, ensuring maximum separation efficiency.

Conclusion

The GN High Shear Circular Screen is an advanced solution for industries that require high-performance screening equipment. With its energy-efficient operation, compact structure, and reliable performance, it is an essential tool for the classification, coarse separation, and dewatering of various materials, including silica sand, feldspar, coal, and ores. If you’re looking for a solution that combines high efficiency with long-term durability, the GN High Shear Circular Screen is the perfect choice for your needs.

For more information or to request a quote, feel free to contact GN Separation – we look forward to assisting you with your material screening solutions!

At GN Separation, we are proud to provide our  dewatering solutions for clients worldwide. One such example is the successful delivery of our GNLW554 Dewatering Decanter Centrifuge to an overseas client, marking another milestone in our commitment to helping industries handle wastewater and sludge treatment with efficiency and reliability.

Introducing the GN T-Series Dewatering Decanter Centrifuge

Our GN Dewatering Decanter Centrifuge is part of the T-series, specifically designed for dewatering and thickening purposes. With an optimized beach angle of 8.5 degrees, this machine excels in removing excess water from sludge and other slurry materials. The longer cone section in the centrifuge enhances its dewatering performance, ensuring the discharge of solid materials that are significantly drier compared to conventional machines.

This centrifuge is widely used in industries requiring maximum dewatering of municipal and industrial wastewater sludge, especially where fine particle separation is crucial.

Applications of the Dewatering Decanter Centrifuge

The GN Dewatering Decanter Centrifuge is perfect for a wide range of materials, including:

• Drilling mud
• Oily sludge
• Sand washing water
• Steel-making wastewater
• Municipal sewage
• Industrial wastewater
• And many more!

Its versatility ensures it is suitable for various industrial sectors such as oil and gas, construction, mining, chemicals, and environmental protection.

Advanced Features of the GNLW554 Model

The GNLW554 is a larger model in our T-series, equipped with a 550mm bowl diameter and longer bowl length, offering a higher capacity and better performance for handling large volumes of sludge. Some key specifications include:

• Max Bowl Speed: 3123 RPM
• Max G Force: 3000 G
• Main Motor Power: 55-90 KW
• Beach Angle: 8.5°
• Material: Duplex Stainless Steel (SUS2205/SUS2304)

The centrifuge’s design allows for high efficiency, energy savings, and easy maintenance. The robust, wear-resistant construction ensures long-lasting performance even under the most demanding conditions.

Efficient and Reliable Separation Process

Our T-Series Decanter Centrifuge is engineered for easy material separation, handling large particle sizes, high-density differences between solids and liquids, and materials with low viscosity and high concentration. For fine particle materials, the addition of flocculants ensures successful coagulation, helping the centrifuge achieve excellent separation results.

Furthermore, the centrifugal casting process used to manufacture key parts such as the bowl shaft caps and screw blades ensures superior durability and resistance to corrosion, outperforming traditional welded parts.

Why Choose GN Separation’s Dewatering Decanter Centrifuge?

• High Performance: The 8.5-degree beach angle design increases the dewatering area, allowing for better separation and dryer solids.
• Durable Construction: Components made of duplex stainless steel ensure the centrifuge is resistant to corrosion and wear, offering extended service life.
• Energy Efficient: The machine’s optimized design reduces power consumption while maintaining high processing capacity.
• Customizable Solutions: We offer tailored solutions depending on your unique processing needs, including options for high-concentration, high-viscosity materials.

A Trusted Partner for Wastewater Treatment Solutions

As a leading manufacturer of separation equipment, GN Separation not only provides top-tier dewatering centrifuges but also offers turnkey solutions for the entire material dewatering process. This includes options for transportation, classification, and dewatering, ensuring that you have a complete solution to address your unique wastewater treatment needs.

If you’re looking for reliable, high-performance equipment to handle your dewatering needs, consider GN Separation’s GNLW554 Dewatering Decanter Centrifuge. Our experienced team is ready to assist you in achieving efficient and cost-effective solutions for your industrial wastewater treatment challenges.

Contact GN Separation today for more information on how we can support your wastewater treatment projects!

In industries where heavy-duty material handling is crucial, GN Separation’s Solids Vacuum Pump (also known as the sludge vacuum pump) provides a reliable and efficient solution. This robust and versatile vacuum-loading solids transfer pump is designed to handle a wide range of challenging applications, including the transfer of solids, powders, slurries, and sludge. Powered entirely by compressed air, the GN Solids Vacuum Pump eliminates the need for electrical power, ensuring safe operation in explosive environments such as the oil and gas and coal industries.

GN Solids Vacuum Pump Features

The GN Solids Vacuum Pump is a compact, efficient, and highly durable machine that excels in demanding environments. It works by creating a high vacuum inside the pump using compressed air, allowing it to easily suction and transport materials across long distances. Capable of operating with a vacuum degree of 25” Hg (85 kPa), this pump offers an impressive capacity, with the ability to load materials through distances of up to 500 meters (or even 1,000 meters for larger units).

GN Solids Vacuum Pumps are available in three models:

• GNSP-10B – 10 m³/h
• GNSP-20B – 20 m³/h
• GNSP-40B – 40 m³/h

Each model is designed with high solids content capability (up to 80%) and can handle particles as large as 75 mm for the GNSP-40B model, making it ideal for tough applications. The pump requires only compressed air, with varying air demand based on the model size:

• GNSP-10B: 4.3 m³/min (150 CFM)
• GNSP-20B: 8 m³/min (280 CFM)
• GNSP-40B: 17 m³/min (600 CFM)

With a variety of configuration options, GN also offers the flexibility to design and manufacture Group Pump Units, combining two or more pumps in a single skid for higher flow rates.

Wide-Ranging Applications

GN Solids Vacuum Pumps are versatile and widely used in many industries. Here are some of the key applications:

• Mining: Effective for transferring coal and other mining slurries, longwall slurry control, and drilling mud and cuttings.
• Oil & Gas: Ideal for OBM transfer, pit cleaning, and oil spill capture and recovery.
• Construction: Used for thickener de-sludge cleaning, sump and shaft cleaning, and tunneling applications.
• Waste Management: Perfect for hazardous waste recovery, effluent and processing waste transfer, and rapid spillage recovery.
• Agriculture: Transports agricultural products and waste, such as sand, bentonite, and cement powders.
• Marine and Petrochemical: Used for barge and ballast tank cleaning, ship cleaning, and petrochemical tank cleaning.

Other uses include pulp and paper mill waste removal, tailings dewatering, power station ash pond cleaning, and even industrial cleaning in high-volume bulk transfer operations.

GN Solids Vacuum Pump Working Principle

The GN Solids Vacuum Pump operates on a simple but effective working principle. Compressed air is fed into the pump, creating a high vacuum inside the tank. The suction line draws the material into the pump. After a few seconds, the valve switches the airflow direction, generating positive pressure inside the pump tank. This pressure pushes the material out of the pump and through the discharge line.

The larger model, GNSP-40A, can operate in both manual and automatic modes, while the smaller models (GNSP-10A and GNSP-20A) are designed for automatic operation only. Since the pump runs on compressed air, it is safe for use in industries where electrical equipment may pose a hazard, such as the oil, gas, and coal industries.

GN Mini Vacuum Cleaner for Industrial Waste

In addition to the large-scale Solids Vacuum Pumps, GN also offers the GN Mini Vacuum Cleaner, a more compact and mobile solution designed for industrial cleaning tasks. The Mini Vacuum Cleaner is air-operated and features both suction and positive pressure functions, allowing it to handle tough cleanup jobs effectively. The portable and lightweight design makes it easy for operators to move around, while adjustable suction and discharge times enable automatic operation, making it perfect for continuous cleaning tasks in challenging industrial environments.

Conclusion

GN Separation’s Solids Vacuum Pumps provide an essential solution for a variety of industrial and mining applications where efficient, high-capacity material transfer is necessary. Their ability to handle high solids content, long-distance delivery, and diverse applications makes them a reliable choice for industries worldwide. With the flexibility to customize the pump size and configuration, GN Solids Vacuum Pumps offer an ideal solution for tackling even the most demanding material transfer tasks.

For more information on GN Solids Vacuum Pumps and other industrial equipment, please don’t hesitate to contact us. GN Separation looks forward to working with you to provide the most effective solutions for your business needs.

At GN Separation, we understand the need for efficient, high-performance separation equipment across various industries. One of our standout products, the 2-Phase Disc Stack Separator, excels at separating fine particles from liquids, offering a powerful solution for liquid clarification in multiple applications.

What is a 2-Phase Disc Stack Separator?

The 2-Phase Disc Stack Separator is designed to remove fine particles from liquids, resulting in clarified liquid that meets stringent quality standards. Unlike decanter centrifuges, the disc stack separator operates at much higher centrifugal forces, enabling superior separation efficiency.

The G-force generated by a 2-phase disc stack separator can reach up to 12,000g, compared to a typical decanter centrifuge, which generally operates around 3,000g. This enhanced G-force results in a higher level of clarification, producing liquid with minimal solid content, ideal for industries requiring ultra-clean liquid products.

How Does the 2-Phase Disc Stack Separator Work?

The separation process begins when the material to be clarified enters the separator bowl via the feed pipe. Inside the distribution cabinet, the material accelerates to synchronize with the rotary bowl’s speed. The disc stack within the rotating bowl divides the material into multiple thin layers, maximizing the surface area for clarification.

As the high-speed centrifugal force is applied, solid particles are pushed to the outer edges of the bowl, where they are deposited in a solid slag collection cavity. Meanwhile, the clarified liquid is discharged, free from suspended solids. This self-discharging process allows for continuous operation, ensuring minimal downtime.

Applications of the 2-Phase Disc Stack Separator

The 2-phase disc stack separator is a versatile piece of equipment used across various industries, including:

• Vegetable Oil Clarification: It efficiently separates fine impurities from oil, resulting in high-quality, clear oil.
• Biopharmaceutical Industry: Used to clarify liquids in the production of vaccines, medicines, and other bio-based products.
• Dairy and Beverage Industry: Helps in clarifying milk, fruit juices, and other liquid-based beverages.
• Biofuels and Marine Oil Clarification: Provides an essential step in processing biofuels and marine oils, ensuring clean and pure end products.

In some cases, pre-treatment may be required before using the 2-phase disc stack separator, especially when the material has a high solid content or larger particles. This step can be carried out using decanter centrifuges or other separation equipment.

Technical Specifications

The 2-phase disc stack separator is available in several models, each designed to meet specific throughput and capacity requirements:

Model	GNLD-40	GNLD-90	GNLD-125	GNLD-225
Bowl Diameter	440mm	580mm	620mm	800mm
Sliding Piston	380mm	500mm	550mm	700mm
Max Capacity	1-2 m³/h	5-10 m³/h	10-15 m³/h	20-25 m³/h
Max Speed	7100 RPM	6150 RPM	6000 RPM	4500 RPM
Max G Force	12409g	12273g	12488g	9063g
Motor Power	11 KW	18.5 KW	30 KW	45 KW
Feeding Pressure	0-0.1 MPa	0-0.1 MPa	0-0.1 MPa	0-0.1 MPa
Feeding Material	Solids content < 3%	Solids content < 3%	Solids content < 3%	Solids content < 3%
Starting Time	10-15 minutes	10-15 minutes	10-15 minutes	10-15 minutes

These specifications are for reference and may vary depending on the specific requirements of your application.

Why Choose GN Separation’s 2-Phase Disc Stack Separator?

When it comes to separating fine particles from liquids and achieving high-quality clarification, the 2-phase disc stack separator from GN Separation stands out for its unparalleled G-force, operational efficiency, and broad range of applications. With its ability to handle lower solid content materials and deliver clarified liquids in industries such as oil, pharmaceuticals, dairy, and biofuels, it is a reliable solution for companies looking to enhance product purity.

GN Separation, a provider of decanter centrifuges, recently supplied two of GNLW series dewatering decanter centrifuges for a municipal wastewater treatment project in Europe. Specifically, one unit each of the GNLW364 and GNLW454 models were chosen to handle the complex task of dewatering and thickening municipal sewage sludge. This project showcases the advanced capabilities and reliability of GN’s equipment in treating municipal and industrial wastewater.

The Role of GN’s Dewatering Decanter Centrifuges

GN Separation’s T Series dewatering decanter centrifuges, including the GNLW364 and GNLW454 models, are designed for efficient dewatering of municipal wastewater sludge, which often has fine particles and a high water content. These centrifuges are equipped with a beach angle of 8.5 degrees, providing a longer drying and dewatering zone that leads to superior dryness of the discharged solids. This feature is particularly beneficial for municipal applications, where high volumes of wastewater sludge must be processed while maintaining energy efficiency and operational stability.

The GNLW364 and GNLW454 are well-suited for large-scale municipal projects, offering higher treatment capacity and improved solid-liquid separation. The sludge processed by these units becomes significantly drier compared to traditional dewatering methods, reducing disposal costs and improving operational efficiency. This is especially important in municipal wastewater treatment plants, where minimizing waste and maximizing resource recovery is a priority.

Key Features of GN’s T Series Decanter Centrifuges

GN’s T Series decanter centrifuges offer several advantages that make them ideal for challenging dewatering tasks in wastewater treatment, including:

• Optimized Beach Angle: The 8.5-degree beach angle ensures a longer dewatering zone, which increases the efficiency of the dewatering process and results in drier solids.
• Durability: GN’s centrifuges feature duplex stainless steel (SUS2205 and SUS2304) components, offering excellent corrosion resistance and extended service life, even under harsh operating conditions.
• Enhanced Sludge Dryness: The centrifugal force generated by the centrifuges’ high-speed operation effectively separates the solids from the liquid, producing a high level of dryness, which is crucial for reducing waste volume.
• Energy Efficiency: GN’s decanter centrifuges are designed to minimize energy consumption while maximizing throughput, helping municipalities lower operating costs.

Advanced Technology and Customization

GN Separation’s dewatering decanter centrifuges are equipped with a range of advanced technologies to ensure smooth and reliable operation, such as:

• Automatic Monitoring System: Real-time monitoring of centrifuge parameters, including speed, vibration, and lubrication, helps optimize performance and prevent potential issues before they affect operations.
• Customizable Materials: GN offers a range of customizable materials for the centrifuges, allowing them to be adapted to specific application needs, such as dealing with higher viscosity or high-concentration sludge.
• Automatic Lubrication and Maintenance Features: The centrifuges include automatic lubrication systems, reducing maintenance workload and improving equipment longevity.

Versatility for a Variety of Applications

While this particular project focuses on municipal wastewater treatment, GN’s dewatering decanter centrifuges are also widely used in many other industries, including:

• Industrial Wastewater Treatment: Processing oily sludge, cutting fluids, and mineral washing water.
• Environmental Protection: Dewatering sewage, construction mud, and mine wastewater.
• Chemical and Food Industries: Handling organic wastewater, precision casting wastewater, and even salt crystal clarification.

GN Separation: Your Partner in Wastewater Treatment Solutions

GN Separation is committed to providing reliable and efficient solutions for wastewater treatment plants worldwide. With a comprehensive range of dewatering decanter centrifuges, including the GNLW364 and GNLW454 models, GN ensures that municipalities can meet their dewatering requirements, optimize operations, and reduce sludge disposal costs.

In addition to offering high-performance equipment, GN also provides turnkey solutions for material dewatering processes. This includes complementary equipment for material transportation, classification, and dewatering—making GN a one-stop solution provider for the most demanding wastewater treatment challenges.

Conclusion

The successful implementation of GN’s GNLW364 and GNLW454 dewatering decanter centrifuges in a European municipal wastewater treatment project demonstrates the company’s commitment to innovation and quality. With superior dewatering capabilities, enhanced energy efficiency, and durable construction, GN Separation continues to be a trusted partner for wastewater treatment solutions worldwide.

Whether you are handling municipal sewage, industrial wastewater, or a range of other sludge types, GN Separation’s T Series centrifuges can deliver the performance you need for a more sustainable and efficient operation.

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GN Separation looks forward to working with you on your next wastewater treatment project. Reach out today to learn how our equipment can optimize your sludge management processes.