GN Separation has recently delivered 2 sets of GNFG1440 high-frequency fine Vibrating Screens to an overseas mining customer. The screens will be integrated into the customer’s mineral processing operation for the wet screening, fine-particle classification, and dewatering of mineral materials. Continue reading
Author Archives: GN Decanter Centrifuge
GN Vacuum Sludge Transfer Pump Shipped for Overseas Customer
GN Separation has recently completed the manufacture and shipment of a batch of Vacuum Sludge Transfer Pumps for an overseas customer. The pumps are designed for material transfer applications involving sludge, slurry and other challenging materials where conventional pumping methods may be difficult to apply. Continue reading
GN Disc Stack Separator for Fine Separation of Seaweed Slurry
GN Separation has recently supplied a 2-Phase Disc Separator for a seaweed slurry separation application in Southeast Asia. The system is designed for fine clarification and solid-liquid separation, helping remove suspended fine particles from the liquid phase after appropriate upstream treatment. Continue reading
5-Deck Stack Vibrating Screen Delivered for Overseas Solids Processing Project
GN Separation has recently completed the delivery of a 5-deck Stack Vibrating Screen for an overseas customer, providing a compact solution for fine-material screening and classification where efficient use of installation space and stable continuous operation are important.
GN Supplies Integrated Sludge Dewatering System for Overseas WWTP
GN Separation has recently completed the supply of a complete sludge dewatering system for an overseas wastewater treatment plant (WWTP). The package combines a GN 14-inch high-speed Decanter centrifuge with a chemical dosing unit, providing the customer with an integrated solution for sludge conditioning and continuous solid-liquid separation. Continue reading
Improving Fine Iron Ore Screening with GN Synergistic Frequency Vibrating Screen
Fine particle screening is an important part of modern iron ore processing. As ore characteristics become more complex and beneficiation plants place greater emphasis on recovery efficiency and concentrate quality, screening equipment needs to provide stable performance even when handling fine and easily blinding materials. Continue reading
GN Completes Production of GNSP20B Solids Vacuum Pumps for International Shipment
GN Separation has recently completed the production and inspection of a batch of GNSP20B Solids Vacuum Pumps, which are now ready for shipment to an international customer. The successful completion of this order further demonstrates GN’s manufacturing capabilities in pneumatic solids conveying and its ability to provide reliable material transfer equipment for demanding industrial applications.
GN Sludge Dewatering Screw Press Package Completed for European Project
GN Separation has recently completed the production of a sludge dewatering screw press package for a European customer. The equipment has been fully assembled and inspected at GN’s manufacturing facility and is now ready for shipment to the customer’s project site. Continue reading
Large Linear Vibrating Screen Delivered for Mining Project
GN Separation has recently completed the production and delivery of a GNLS3073 Large Linear Vibrating Screen for a domestic mining customer. Designed for demanding screening operations, the equipment will be used in the customer’s mining production line to improve screening efficiency and maintain stable, continuous material processing.
GN Separation Supplies Integrated Screw Press Sludge Dewatering System for International Project
GN Separation has recently completed the production and shipment of an integrated sludge dewatering package for an overseas customer. The system combines a GNDL302 Screw Press Sludge Dewatering Machine with a GNSJY2000 Automatic Chemical Dosing Unit, providing a reliable and energy-efficient solution for continuous sludge treatment.
The package is designed to optimize sludge conditioning and mechanical dewatering while reducing operating costs and simplifying plant operation. Its compact skid-mounted design also makes installation and commissioning more convenient for end users.
Complete Sludge Dewatering Process
Efficient sludge dewatering depends not only on the dewatering machine itself but also on proper chemical conditioning. In this package, the polymer dosing unit and screw press work together to achieve stable dewatering performance.
The treatment process includes:
- Automatic preparation of polymer solution
- Precise polymer dosing and sludge flocculation
- Continuous sludge dewatering using the screw press
- Collection of dewatered sludge cake
- Return of filtrate to the wastewater treatment system
This integrated process improves sludge dewatering efficiency while reducing polymer consumption and labor requirements.
GNDL302 Screw Press for Continuous Dewatering
The GNDL302 screw press is designed for continuous sludge thickening and dewatering. Its low-speed screw conveyor works together with fixed and moving rings to gradually increase pressure inside the dewatering zone, allowing water to pass through the filter gaps while conveying the sludge cake toward the discharge outlet.
Compared with conventional dewatering equipment, the screw press offers several advantages:
- Low power consumption
- Continuous automatic operation
- Self-cleaning mechanism to reduce clogging
- Low noise and vibration
- Simple maintenance requirements
- Long equipment service life
The equipment is suitable for municipal wastewater as well as various industrial sludge applications.
Automatic Polymer Preparation
The GNSJY2000 Chemical Dosing Unit automatically prepares polymer solution with accurate concentration control and continuous output. Proper flocculation enhances sludge particle aggregation before entering the screw press, contributing to improved cake dryness and more stable operation.
The automatic system also minimizes manual chemical preparation, improves dosing consistency, and helps reduce operating costs.
Supporting Various Industrial Applications
GN Separation provides screw press sludge dewatering systems for a wide range of industries, including municipal wastewater treatment, food and beverage processing, paper manufacturing, chemical plants, textile production, and other industrial wastewater treatment facilities.
Each sludge dewatering package can be configured according to sludge characteristics, treatment capacity, and project requirements. By combining reliable equipment with practical engineering experience, GN Separation continues to deliver customized solid-liquid separation solutions for customers around the world.