Month: May 2024

We are thrilled to announce that GN Separation has successfully sold two units of our screw press sludge dewatering machines, model GNDL402, to a European client. These machines represent the cutting edge of economic and environmentally friendly sludge dewatering technology.

The GN Screw Press: An Overview

The GN screw press sludge dewatering machine is designed to be both cost-effective and environmentally friendly. It utilizes the principle of screw extrusion to achieve solid-liquid separation. This process is driven by the powerful squeezing force generated through the variation in screw diameter and pitch, along with the minute gaps between the floating and fixed rings. This innovative design ensures efficient dewatering by leveraging mechanical principles for superior results.

Key Features of the GN Screw Press

• Economic and Environmental Benefits: The GN screw press is engineered for minimal environmental impact and operational cost, making it an ideal choice for sustainable operations.
• Advanced Dewatering Technology: By using screw extrusion, the machine provides robust dewatering through changing screw diameters, screw pitches, and gaps between rings, ensuring effective solid-liquid separation.
• Automatic Control: Equipped with a fully automatic control cabinet, flocculation modulation box, sludge thickening and dewatering device, and liquid collecting tank, the GN screw press allows for continuous and automatic operation.
• Versatility: It is suitable for a wide range of sludge dewatering applications, including oily sludge treatment. The machine is designed to operate continuously and automatically without clogging.

ADVANTAGES OF THE GN SCREW PRESS DEWATERING MACHINE

1. Wide Application Range: Suitable for various industries such as municipal sewage treatment, aquaculture, food processing, starch production, oil refining, pharmaceuticals, chemicals, paper production, and leather manufacturing.
2. Continuous and Automatic Operation: Ensures consistent performance with minimal manual intervention and reduced risk of blockages.
3. Cost Efficiency: Low investment and operational costs combined with no secondary pollution make it a financially sound choice.
4. Energy Efficiency: Compact design and small footprint contribute to energy savings and environmental protection.
5. Enhanced Sludge Treatment: Capable of dewatering sludge under aerobic conditions to prevent phosphorus release from anaerobic sludge dewatering.

Technical Details

The main body of the GN screw press dewatering machine consists of a filtration device composed of fixed and moving rings, with a screw axis running through them. The front section of the machine is dedicated to concentration, while the back section focuses on dewatering. As sludge progresses from the concentration section to the dewatering section, the filtering gap and screw pitch gradually decrease, enhancing the dewatering effect.

The rotating screw shaft not only transports the sludge but also drives the moving ring to clean the filtering gap, preventing clogging and ensuring continuous operation. This design enables effective dewatering by generating high internal pressure as the sludge volume is reduced.

Application and Customization

The GN dewatering screw press can handle sludge concentrations ranging from 2000 mg/L to 50000 mg/L. We offer a comprehensive range of sludge dewatering equipment, allowing clients to select the best solution based on their specific sewage treatment needs and budget. Additionally, GN provides integrated mobile sludge dewatering solutions tailored to customer requirements.

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The sale of the GNDL402 screw press units to our European client marks another milestone for GN Separation. We are committed to delivering high-quality, efficient, and sustainable dewatering solutions to clients worldwide. For more information or to discuss how our equipment can meet your needs, please contact us. We look forward to future collaborations and are excited about the possibilities ahead.

Thank you for your interest in GN Separation.

At GN Separation, we are committed to providing cutting-edge solutions to meet your material separation needs. One of our standout products is the GN Large Flip-Flow Vibrating Screen, a state-of-the-art piece of equipment designed to handle the most challenging screening tasks with exceptional efficiency and reliability.

Key Features of GN Large Flip-Flow Vibrating Screen

The GN Large Flip-Flow Vibrating Screen is meticulously engineered with the following components:

• Box Type Exciter
• Main Vibrating Screen Frame
• Floating Screen Frame
• Shear Spring and Damping Spring
• Flexible Polyurethane Screen Mesh
• Support and Driving Device

These components work in unison to ensure that the screen operates with a linear running amplitude, providing a robust and efficient screening process.

Advanced Design for Superior Performance

Double Mass Near Resonance Principle

Our Flip-Flow Vibrating Screen leverages the principle of double mass near resonance. This design enables the floating screen frame to achieve large amplitudes, allowing the screen surface to deliver material with an acceleration of up to 50 G. This high acceleration is crucial for effectively screening medium and fine-grained materials, especially those that are wet, sticky, or otherwise difficult to screen.

Technical Features and Advantages

• Non-Welded Wallboard: The screen machine wallboard is crafted from high-strength alloy steel plate, which offers superior impact toughness. The use of imported Huck rivets for hydraulic tension assembly eliminates residual stress from welding.
• Optimized Structure: Through finite element analysis, we have optimized the screen’s structure and vibration parameters to avoid natural frequencies and reduce resonance impacts, thereby extending the machine’s service life.
• Innovative Beam Design: The cross beam under the screen uses a rectangular tube design, while the exciting beam box structure is lightweight, strong, and tough. Post-welding heat treatment of main components effectively eliminates welding stress.
• Adjustable Amplitude: The amplitude of the floating screen frame can be adjusted by changing the number of shear springs.
• High-Efficiency Exciter: Our helical gear box type exciter delivers a super large exciting force with ultra-low noise, stable operation, and a long service life. The external arrangement of the eccentric block allows for easy amplitude adjustments by changing the counterweight setting.
• Convenient Screen Mesh Replacement: The polyurethane screen mesh is installed by pressing, making replacement more convenient. The mesh’s elastic deformation provides self-cleaning functionality, effectively preventing clogging by fine, wet, and viscous materials.

Working Principle of Flip-Flow Vibrating Screen

The Flip-Flow Vibrating Screen operates on the principle of double mass near resonance, where a single drive generates double vibration:

1. Primary Vibration: The main vibrating screen frame is driven by the exciting force to perform the basic vibration.
2. Secondary Vibration: The floating screen frame, connected to the main frame via shear springs, performs relative movement in a near-resonance state.

One end of the polyurethane screen mesh is fixed to a fixed beam, while the other end is attached to a floating beam. The relative motion between these beams causes the screen to continuously stretch and relax, delivering high acceleration to the material. This motion ensures that the material is thoroughly loosened and able to pass through the screen, achieving effective separation. The screen mesh’s elastic deformation during this process helps to keep the screen clean by throwing off wet and sticky materials.

Conclusion

The GN Large Flip-Flow Vibrating Screen is an exemplary solution for dry screening of medium and fine-grained materials, as well as for managing wet and sticky substances. Its innovative design and technical advantages make it a reliable and efficient choice for industries looking to improve their material screening processes.

At GN Separation, we are proud to offer this advanced screening technology to meet your most demanding separation challenges. Contact us today to learn more about how our Flip-Flow Vibrating Screen can enhance your operations.

IFAT Munich 2024

Web: IFAT Munich

Dates: 13-17 May, 2024

Venue: Hall No. A1, Booth: 104-B

Venue Address: Messe München GmbH, New Munich Trade Fair Center, Germany

GN Separation Equipment Co., Ltd. (GN Separation) is a subsidiary of Hebei GN Solids Control Co., Ltd. Specializing in the manufacture of industrial separation equipment, GN Separation offers a comprehensive range including Centrifuges, Vibrating Screens, Dewatering Screw Presses, and pumps. With a history in the separation industry dating back to 2007, GN has become synonymous with quality and reliability.

Operating from three expansive factories covering a total area of 110,000 square meters in China, GN Separation ensures efficient production processes and timely delivery of products. Additionally, our branch offices in the United States and Australia provide localized service capabilities, enhancing customer satisfaction and support.

Recognized as a National High-Tech Enterprise, GN implements a robust management system to uphold the highest standards of quality and safety. We are proud to have held the American API Quality Management System Certification for 14 consecutive years since 2010. Moreover, GN maintains China Classification Society certifications for ISO9001, ISO14001, and ISO45001, underscoring our commitment to excellence.

Our separation equipment is compliant with EU CE, ATEX, and International IECEx standards, ensuring adherence to international regulatory requirements. To streamline production and operations, GN employs an ERP Cloud + CRM Cloud management system, facilitating seamless coordination and enhancing efficiency.

With approximately 70% of our products exported globally to over 70 countries, GN has established a strong presence in the international market. Our participation in IFAT Munich 2024 underscores our dedication to showcasing innovative solutions and forging partnerships with industry stakeholders.

Visit GN Separation at Hall No. A1, Booth 104-B, at IFAT Munich 2024 to discover our latest advancements in separation technology and explore how we can meet your specific requirements. We look forward to welcoming you at our booth and discussing opportunities for collaboration.

For more information about GN Separation Equipment Co., Ltd., please visit our website here.