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Complete GNDL302 Screw Press & GNSJY2000 Dosing System Exported for Overseas Sludge Treatment Project

International Business Update — In a new milestone in global environmental equipment export, our company has successfully completed the packaging and shipment of a full-set sludge dewatering system, consisting of the GNDL302 screw press dewatering machine and matched GNSJY2000 chemical dosing unit. The turnkey solution will be delivered to an overseas industrial site to support local sludge harmless treatment, volume reduction and resource utilization work.
Industrial sludge treatment has always been a key and difficult part of wastewater environmental management, with common pain points including low dewatering efficiency, high operating energy consumption and complicated supporting processes. To solve the actual operation problems of overseas clients, our technical team configured a matched combination of core dewatering equipment and automatic dosing equipment for this project, realizing one-stop integrated sludge treatment from chemical conditioning to solid-liquid separation.
The GNDL302 screw press sludge dewatering machine serves as the core processing equipment of the entire system. Adopting advanced low-speed screw extrusion technology, it abandons the vulnerable filter cloth structure of traditional dewatering equipment. The equipment features anti-clogging, low noise and ultra-low power consumption, and is suitable for continuous treatment of municipal sludge, chemical sludge, food processing sludge and multiple types of industrial sludge. Its optimized screw pitch and pressure ring structure can form stable gradient pressure, which efficiently removes free water and capillary water in sludge, greatly reducing sludge moisture content and sludge stacking volume. The whole machine is made of high-strength anti-corrosion stainless steel, adapting to humid and corrosive overseas on-site environments and ensuring long-term stable operation.
Supporting the efficient operation of the main unit is the GNSJY2000 automatic chemical dosing unit, a key supporting facility to improve sludge dewatering quality. The equipment is calibrated according to the rated treatment capacity of GNDL302 screw press, supporting automatic water inflow, chemical proportioning, stirring and quantitative dosing. It can fully mix and react with incoming sludge to promote rapid flocculation and precipitation of fine sludge particles, effectively improving solid-liquid separation effect. The fully automatic integrated design reduces manual intervention, avoids dosing deviation caused by manual operation, greatly improves treatment stability, and reduces on-site operation and maintenance costs.
The combined system of GNDL302 and GNSJY2000 boasts remarkable advantages such as compact overall layout, convenient installation and commissioning, low later maintenance cost and full-automatic unattended operation. It can effectively help overseas enterprises reduce sludge disposal pressure, meet local environmental protection emission and sludge treatment standards, and achieve energy-saving and efficient green production.
This overseas equipment delivery fully demonstrates the company’s strong manufacturing strength and customized solution capabilities in the field of environmental protection sludge treatment. In the future, we will continue to focus on the actual needs of global environmental governance, continuously optimize equipment performance and system solutions, and provide more reliable, efficient and economical sludge treatment equipment and technical services for overseas customers worldwide.

GN Solids Control Delivers Sludge Dewatering Screw Press Package for Overseas Client

GN SOLIDS CONTROL is pleased to announce the successful delivery of a sludge dewatering screw press package to an overseas client. Designed for efficient sludge treatment applications, the system combines the GN GNDL302 Screw Press with the GNSJY2000 Chemical Dosing Unit to provide a complete solution for sludge dewatering and volume reduction.

The GN GNDL302 Screw Press is engineered to handle continuous sludge dewatering with stable performance, low energy consumption, and simplified maintenance requirements. For this project, the system is designed to process approximately 6 m³/h of sludge, helping the client effectively reduce sludge volume and improve disposal efficiency.

To optimize dewatering performance, the package is equipped with the GN GNSJY2000 Chemical Dosing Unit, which provides accurate polymer preparation and dosing. With a chemical dosing pump flow rate of 656 L/h, the system ensures consistent chemical mixing and improves solid-liquid separation efficiency. A dedicated sludge feed pump with a capacity of 8 m³/h is also integrated to provide stable material transfer during operation.

The compact and modular design of the GN sludge dewatering package allows for convenient transportation, quick installation, and flexible deployment according to different site requirements. By combining efficient mechanical dewatering technology with reliable chemical preparation, GN SOLIDS CONTROL continues to provide customized sludge management solutions for global customers.

This successful delivery demonstrates GN’s commitment to helping clients reduce waste handling costs, improve operational efficiency, and achieve more sustainable wastewater treatment processes.

GN Solids Mena Opens New Dubai Office to Strengthen Middle East Support

GN SOLIDS CONTROL is pleased to announce the official opening of its new Dubai office, operated by GN Solids Mena. The new facility brings sales, technical support, and service teams together in one location, providing faster response and more efficient support for customers across the Middle East region.

Hebei GN Solids Control Co., Ltd. has been specializing in solids control and waste management equipment since 2008. With three manufacturing facilities covering 110,000 square meters in China, GN has become a globally recognized supplier of drilling waste management and solids control solutions. The company also operates overseas offices in the United States, Australia, and now the Middle East.

The Dubai office was established to enhance local customer communication, technical consultation, and after-sales service. Located with convenient access to Jebel Ali Port, the new office enables GN’s local team to provide improved logistics coordination, equipment support, and on-site assistance for regional projects.

With advanced production management systems, international quality certifications, and products exported to more than 70 countries worldwide, GN SOLIDS CONTROL continues to expand its global service network.

The opening of the Dubai office represents another important step in GN’s international development strategy. By combining local support with global manufacturing capabilities, GN SOLIDS CONTROL remains committed to delivering reliable equipment solutions and professional services to customers worldwide.

GN Solids Mena Expands Middle East Footprint with Brand-New Jebel Ali Office in Dubai

GN Solids Control continues to strengthen its global overseas service layout with a major regional upgrade. Its Middle East subsidiary, GN Solids Mena, has officially inaugurated its brand-new permanent office in Dubai’s prestigious Jebel Ali district, marking a new phase of localized, intensive and high-quality development for the brand across the entire Middle East market.
The establishment of the new Dubai office is not a temporary office upgrade, but a strategic layout based on the long-term development of the Middle East engineering market. After completing official local registration in the previous year, GN Solids Mena has spent months optimizing team building, service mechanisms and regional operational systems. Today, the full local workforce — covering professional sales consultants, senior technical solution engineers and dedicated after-sales service technicians — has fully moved into the new office, forming a complete and independent localized service team. This fully eliminates the time difference and distance barriers of cross-border services, greatly improving the overall response capability for regional project demands.
Different from traditional single-functional office spaces, the new Jebel Ali office is built as a comprehensive regional service center tailored for Middle East customer needs. It integrates business communication & project negotiation, personalized technical solution customization, professional product and project training, and regional market operation functions in one space. Equipped with complete professional office systems, product display facilities and standardized training venues, the office provides customers with intuitive, efficient and standardized face-to-face service experiences, laying a solid foundation for in-depth business communication and long-term strategic cooperation.
Benefiting from the unique location advantage of Jebel Ali — the core logistics and transportation hub of the Middle East — GN Solids Mena’s localized team can deliver faster and more convenient full-cycle services for customers in the UAE, Saudi Arabia, Qatar, Oman, Bahrain, Kuwait and other Gulf countries. With professional engineers stationed locally on a long-term basis, the team can provide timely remote technical debugging, equipment operation guidance, on-site installation and commissioning, regular equipment maintenance and after-sales troubleshooting support. The localized service model effectively shortens the service response cycle, solves various on-site operation problems for engineering projects, and ensures the stable and efficient operation of customer equipment.
As an important part of GN Solids Control’s global service ecosystem, the Dubai MENA office complements the brand’s overseas layout covering the United States and Australia, together with the China headquarters, building a four-dimensional global service network that covers Asia, Europe, America and Oceania. Relying on global technical resource sharing and localized on-site service advantages, GN is able to deliver standardized, high-quality solid-liquid separation equipment and customized system solutions for oil and gas exploitation, tunnel shield construction, mineral processing, environmental sludge treatment and other engineering fields worldwide.
GN Solids Mena extends a sincere invitation to all new and existing partners, industry clients and industry peers in the Middle East region to visit the new Dubai office for business exchanges, technical discussions and win-win cooperation. Moving forward, GN will adhere to the service concept of “local deployment, global empowerment”, continuously deepen its cultivation in the Middle East market, polish professional technical services, and create sustainable commercial and environmental value for regional engineering construction.

GN 30-inch Bowl Diameter Decanter Centrifuge for Domestic Mining Slurry Concentration Application

GN Separation officially launches its newly upgraded 30-inch large-bowl decanter centrifuge, specially customized for high-concentration mineral slurry thickening and dewatering in domestic mining projects. Breaking the limitation of small and medium-size centrifuges with low single-unit throughput, this large-diameter separation equipment delivers high-efficiency solid-liquid separation for metal ore, non-metal ore tailings slurry, coal washing slurry and mineral concentrate dehydration, providing an energy-saving, high-yield and fully automatic solution for domestic mining enterprises to realize tailings dry stacking and resource recycling.

Severe Pain Points of Traditional Mining Slurry Treatment in Domestic Mines

In recent years, domestic mining industry has raised stricter standards for tailings environmental treatment, resource recovery and production efficiency. Most medium and large mines adopt traditional thickener pools matched with small-size decanter centrifuges to treat mineral slurry, which bring multiple production bottlenecks:
  1. Low single machine processing capacity: Small-bowl centrifuges cannot cope with the massive slurry output of large-scale mines, requiring multiple units to work in parallel, leading to high equipment investment and complicated pipeline layout;
  2. Poor adaptability to high-concentration slurry: Fine mineral particles with high specific gravity are hard to be fully intercepted by conventional equipment, resulting in high water content of discharged solid tailings and low recovery rate of mineral concentrate;
  3. High operation and maintenance cost: Mining slurry contains a large number of hard rock particles with strong abrasion, ordinary centrifugal vulnerable parts wear rapidly and need frequent replacement, which affects continuous mining production;
  4. Large energy consumption and low automation level: Old-fashioned fixed-speed centrifuges cannot adjust operating parameters according to real-time slurry concentration, resulting in unnecessary power waste and relying on manual on-site operation for a long time.
In addition, the land occupation of tailings ponds is increasingly restricted by national environmental policies, so mining enterprises are in urgent need of large-capacity, high-dehydration-efficiency separation equipment to realize dry discharge of tailings and reduce the storage pressure of tailings ponds.

Core Technical Advantages of GN 30-inch Large Bowl Decanter Centrifuge

The 30-inch bowl diameter is the core design highlight of this model. Compared with conventional 22-inch, 26-inch centrifuges, the effective settling area inside the drum is greatly expanded, which prolongs the sedimentation time of mineral particles and significantly improves slurry treatment capacity and separation precision. Combined with targeted mining-oriented structural optimization, the equipment has prominent industry advantages:
  1. Ultra-large processing capacity to match large-scale mining production

    With a 30-inch integral forging rotary drum and optimized length-diameter ratio design, the maximum hourly processing capacity of mineral slurry reaches 80-120 cubic meters, which can replace 2-3 sets of medium-sized centrifuges. It simplifies the on-site layout of the slurry treatment system and reduces the overall investment of supporting facilities such as feeding pumps and pipelines for mine owners.

  2. High-strength wear-resistant structure adapted to abrasive mineral slurry

    The main drum is made of thickened duplex stainless steel, while the conveyor spiral surface is overlaid with tungsten carbide wear-resistant alloy. The slag outlet, feeding port and other flushing parts are equipped with replaceable high-chromium alloy bushings. Even under long-term continuous treatment of hard ore slurry such as iron ore, copper ore and coal gangue, the service cycle of vulnerable parts is increased by more than twice, cutting frequent shutdown maintenance losses for mines.

  3. Full-range VFD intelligent frequency conversion control system

    The complete set of variable frequency drive system realizes stepless independent adjustment of drum rotating speed and differential speed. Operators can adjust equipment operating parameters in real time according to slurry concentration, particle fineness and solid content of different ores. Whether it is concentrate thickening or tailings dehydration, the machine can maintain the optimal separation state, effectively reduce moisture content of solid slag and improve the recovery rate of useful minerals. The frequency conversion design cuts comprehensive energy consumption by 18%–25% compared with fixed-speed large centrifuges.

  4. Closed fully automatic operation, meeting domestic environmental protection standards

    The whole machine adopts fully sealed structural design to avoid slurry splashing and dust overflow during operation, without secondary pollution to the mine production area. Matched with GN self-developed PLC centralized control cabinet, it supports real-time remote monitoring of operating current, vibration, temperature and feeding flow, realizing unattended automatic operation and greatly reducing on-site labor configuration.

Practical Application Benefits for Domestic Mining Projects

After trial operation in multiple domestic iron ore and coal washing plants, the 30-inch large bowl decanter centrifuge achieves remarkable economic and environmental benefits:
  1. Mineral concentrate recovery rate increased by more than 12%, effectively improving mine resource utilization and economic output;
  2. Water content of discharged tailing slag stably controlled below 18%, dry slag can be directly transported for comprehensive utilization such as mine backfilling and building aggregate processing, greatly reducing the occupied area and safety risk of tailings ponds;
  3. Recycled clear water after separation can be fully returned to the ore washing production line, saving mine fresh water consumption and lowering water supply cost;
  4. Single machine covers large slurry treatment demand, simplifies the mine solid-liquid separation workshop layout and reduces the later equipment maintenance workload.

Market Prospect

The launch of GN 30-inch large bowl mining decanter centrifuge further enriches GN’s domestic mineral slurry separation product line. At present, GN’s full series of mining centrifugal separation equipment has been widely applied in coal washing, ferrous metal mining, non-ferrous metal mineral processing, rare earth ore and other domestic mining fields.
Facing the domestic mining industry’s general trend of green transformation, tailings dry discharge and intelligent production, GN Separation will continue to iterate large-size high-efficiency separation equipment, provide customized integrated slurry thickening and dehydration system solutions for domestic mining enterprises, and help the high-quality and low-carbon development of China’s mining industry.

Know more about GN Separation—GN 30-inch Bowl Diameter Decanter Centrifug