Month: August 2026

GN Separation has recently completed the assembly, testing, and inspection of a batch of GNSP20B Solids Vacuum Pumps, which are now ready for shipment to overseas customers. These units will be used for a variety of material transfer applications, including sludge handling, industrial waste transfer, mining slurries, wastewater treatment, and bulk solids conveying.

Reliable Pneumatic Conveying Solution

The GNSP20B Solids Vacuum Pump is a fully pneumatic conveying system designed to transfer solids, sludge, slurry, powders, and other challenging materials without the need for electrical power. Powered entirely by compressed air, the pump generates a high vacuum to draw material into the vessel and then uses positive pressure to discharge it to the desired location. This design makes it particularly suitable for hazardous or explosion-proof environments where electric-driven pumps may not be ideal.

Unlike conventional pumps, the GNSP20B features a simple structure with no rotating parts inside the conveying chamber. This reduces wear, minimizes maintenance requirements, and enhances reliability when handling abrasive or high-solids-content materials. The pump can handle sludge and powder materials with solids content of up to 80%, making it a versatile solution across many industries.

Key Features of GNSP20B

The GNSP20B model offers a maximum conveying capacity of 20 m³/h under water-equivalent conditions. It is equipped with a 4-inch (114 mm) inlet and outlet connection and can discharge materials over distances of up to 500 meters, depending on material characteristics and site conditions. The unit can handle particles up to 50 mm in size and requires compressed air pressure between 550–690 kPa (80–100 PSI).

Additional advantages include:

• Fully air-operated design with no electrical power requirement.
• Compact footprint for easy installation and transportation.
• Low maintenance due to the absence of internal rotating components.
• Capable of conveying sludge, slurry, powder, and granular materials.
• Suitable for both fixed installations and mobile applications.
• Optional suction heads available for different material types and operating conditions.

Wide Range of Applications

GN Solids Vacuum Pumps are widely used across multiple industries where difficult-to-handle materials need to be transferred efficiently. Typical applications include:

• Wastewater treatment plant sludge transfer
• Thickener and clarifier desludging
• Oil sludge and tank bottom cleaning
• Mining slurry and tailings transfer
• Drilling mud and drilling cuttings conveying
• TBM and tunneling projects
• Hazardous waste recovery
• Bulk powder and granular material transfer
• Industrial sump, pit, and shaft cleaning operations

The flexibility of the GNSP20B allows operators to move materials over long distances while minimizing labor requirements and reducing downtime.

 

GN Separation has recently completed the manufacturing and final inspection of a complete Sludge Dewatering Screw Press Package, which is ready for shipment to a European client. The supplied system includes a GN Screw Press GNDL303 and a GNSJY3000 Automatic Chemical Dosing Unit, providing an integrated solution for efficient sludge conditioning and dewatering.

Complete Sludge Dewatering Solution

Sludge management is a critical challenge for wastewater treatment plants and industrial facilities. Effective dewatering can significantly reduce sludge volume, lower transportation and disposal costs, and improve overall treatment efficiency.

The GN Sludge Dewatering Screw Press Package combines mechanical dewatering technology with automatic polymer preparation and dosing. The system is designed to continuously process sludge, improve solid-liquid separation, and produce a more concentrated and easier-to-handle sludge cake.

The package consists of:

GNDL303 Screw Press Dewatering Machine
GNSJY3000 Chemical Dosing Unit
Integrated control system
Sludge conditioning and dewatering components
GN GNDL303 Screw Press: Efficient and Reliable Sludge Dewatering

The GNDL303 Screw Press is designed for continuous sludge thickening and dewatering applications. It utilizes a slowly rotating screw mechanism combined with fixed and moving rings to generate progressive compression pressure, allowing water to be separated from sludge while maintaining low energy consumption.

Key advantages of the GNDL303 include:

1. Continuous Automatic Operation

The screw press system can operate continuously with minimal operator intervention. The integrated control system allows coordinated operation of sludge feeding, flocculation, thickening, and dewatering processes.

2. Low Energy Consumption

Compared with traditional sludge dewatering equipment, the screw press operates at a low rotational speed, resulting in reduced power consumption and lower operating costs.

3. Compact Design

The compact structure of the GNDL303 makes it suitable for wastewater treatment facilities where installation space is limited.

4. Stable Dewatering Performance

Through gradual compression and controlled pressure increase, the system effectively removes water from sludge and produces a concentrated sludge cake suitable for transportation, disposal, or further processing.

GNSJY3000 Chemical Dosing Unit: Optimizing Sludge Conditioning

Chemical conditioning plays an important role in sludge dewatering performance.

Before entering the screw press, sludge is mixed with prepared polymer solution. The polymer helps fine sludge particles form larger flocs, improving water release and enhancing separation efficiency.

The GNSJY3000 Chemical Dosing Unit is designed for automatic polymer preparation, maturation, and dosing. It provides stable chemical concentration and accurate dosing control, helping operators achieve consistent dewatering results.

Factory Preparation and Shipment

Before shipment, GN engineers completed the assembly, inspection, and functional checks of the complete package to ensure that all components meet project requirements.

The modular design allows easier transportation, installation, and commissioning at the customer’s site.

GN Separation continues to provide complete sludge treatment solutions for municipal wastewater, industrial wastewater, mining, and other environmental applications worldwide.

From individual dewatering equipment to complete integrated systems, GN works closely with customers to develop reliable and cost-effective solid-liquid separation solutions.

For more information about GN Sludge Dewatering Screw Press Package, please contact GN Separation.

Enhancing Mining Efficiency with High-Capacity Screening Technology

GN Separation has recently completed the manufacturing and delivery of a Large Linear Vibrating Screen GNLS3073 for a domestic mining company. The equipment is designed to meet the demanding requirements of modern mineral processing operations, providing efficient screening performance, reliable operation, and long service life under continuous heavy-duty working conditions.

In mining and mineral processing applications, effective screening plays an important role in improving product quality, optimizing downstream processes, and reducing operational costs. With its large screening area and strong processing capability, the GNLS3073 Large Linear Vibrating Screen provides an ideal solution for high-volume material classification and separation.

Overview of GN Large Linear Vibrating Screen

The GN Large Linear Vibrating Screen is a high-capacity screening machine widely used in industries including mining, mineral processing, coal preparation, aggregate production, building materials, and chemical processing.

The equipment mainly consists of a box-type vibration exciter, screen box, vibration damping springs, support structure, and driving system. Through a forced synchronization vibration mechanism, the screen body moves in a linear trajectory, allowing materials to be evenly distributed and efficiently separated on the screen surface.

The linear motion design provides strong conveying force and stable material movement, helping achieve effective classification, dewatering, and desliming performance.

GNLS3073: Designed for Heavy-Duty Mining Applications

The GNLS3073 model is engineered specifically for large-scale mining operations where high throughput and robust structural performance are required.

Key advantages include:

1. Large Screening Capacity

With an optimized screening area and powerful vibration force, GNLS3073 can handle large volumes of mineral materials while maintaining stable screening efficiency. It is suitable for continuous operation in demanding mining environments.

2. Strong Structural Reliability

The screen structure adopts a heavy-duty design to withstand impact loads and long-term operation. High-strength materials and optimized structural design improve equipment durability and reduce maintenance requirements.

3. Efficient Material Separation

The linear vibration trajectory allows materials to move smoothly across the screen surface, promoting better material stratification and improving screening accuracy.

4. Flexible Configuration

The screen surface can be customized according to different process requirements, including single-layer or double-layer screening configurations. Screen panels can also be selected based on different material characteristics and particle sizes.

Advanced Design Features

GN Large Linear Vibrating Screens are developed with several design features to improve performance and reliability:

• High-strength alloy steel screen structure with excellent impact resistance
• Optimized vibration parameters through structural analysis
• Gearbox-type vibration exciter with stable operation and long service life
• Adjustable vibration amplitude according to different working conditions
• Modular screen panels for convenient replacement and maintenance
• Wear-resistant protection solutions for abrasive materials

These features allow GN vibrating screens to maintain reliable performance in harsh mining environments.

Wide Applications in Mining and Mineral Processing

GN Large Linear Vibrating Screens are commonly used in various process stages, including:

• Wet screening
• Dewatering
• Desliming
• Mineral classification
• Tailings dry discharge
• Coal processing
• Sand and aggregate screening

By improving material separation efficiency, the equipment helps customers optimize production processes and achieve more stable operation.

Reliable Screening Solution from GN Separation

With extensive experience in solids control and separation technology, GN Separation provides customized screening solutions for mining and industrial applications worldwide.

The successful delivery of the GNLS3073 Large Linear Vibrating Screen demonstrates GN’s capability to manufacture high-performance screening equipment that meets the requirements of modern mining operations.

GN continues to focus on developing efficient, durable, and practical separation equipment to help customers improve productivity and achieve sustainable industrial development.