GN Separation has successfully completed manufacturing and delivery of a full-set sludge dewatering screw press system for an overseas customer. This turnkey package consists of the GNDL302 sludge dewatering screw press and the GNSJY2000 chemical dosing unit, providing a highly efficient, environmentally sustainable solution for sludge treatment and solid-liquid separation.
The GNDL302 screw press serves as the core equipment of the project, representing GN’s new-generation extrusion-based dewatering technology. Operating on the principle of continuous screw extrusion, the machine achieves steady solid-liquid separation throughout the working cycle. By leveraging gradual changes in screw diameter and pitch, the equipment builds consistent and powerful squeezing pressure. Combined with the precision clearance between floating rings and fixed rings, it efficiently drains moisture from raw sludge and produces low-moisture, dry sludge cake with stable output quality.
Compared with traditional dewatering machinery, GN screw presses deliver outstanding operational strengths: compact footprint, low power consumption, stable continuous operation and minimal maintenance requirements. The uniquely designed self-cleaning floating and fixed ring structure eliminates clogging risks, enabling 24/7 uninterrupted operation with extremely low water usage. These superior features make GN screw presses versatile for extensive applications, covering municipal wastewater treatment, industrial effluent treatment, food processing, chemical production and other professional sludge treatment projects.
Matched with the dewatering host, the GNSJY2000 automatic polymer dosing unit is fully integrated into the overall system to realize accurate, stable and automatic chemical preparation and dosing. Scientific sludge conditioning effectively improves sludge flocculation performance, which is critical to boosting solid-liquid separation efficiency. The perfect synergy between chemical conditioning and mechanical extrusion significantly enhances the system’s overall dewatering effect and operational stability.
GN’s integrated dewatering solution perfectly combines chemical conditioning technology with high-efficiency physical separation equipment to meet diverse and customized wastewater treatment needs. Conventional mechanical separation devices can only effectively remove suspended particles of 2–5 microns, while ultra-fine impurities remain difficult to separate. The integrated combination of GN’s dosing system and separation equipment efficiently captures and removes ultra-fine particles, enabling enterprises to meet stricter environmental discharge standards and improve overall wastewater treatment performance.
Before shipment, the entire system underwent stringent factory calibration, inspection and performance testing. All components and functional modules were fully validated to meet standardized technical parameters and the customer’s customized operational requirements. In addition, GN’s professional engineering team provided comprehensive technical support throughout the project, including tailored equipment configuration, standardized operation guidance and complete technical document delivery.
As a professional manufacturer specializing in solid-liquid separation equipment, GN Separation continues to deliver reliable, customized separation solutions for global clients. Supported by mature core technologies, superior equipment quality and abundant international project experience, GN is committed to providing industries with more efficient, economical and sustainable wastewater and sludge treatment solutions.