Let’s Talk About GN Separation’s Solids Vacuum Pumps: The Ultimate Solution for Industrial Sludge and Waste Management

In the world of industrial waste management and sludge handling, GN Separation stands out with our GN Solids Vacuum Pumps. These versatile and efficient machines are designed to tackle a wide range of challenging tasks. Whether you are dealing with thick sludge, mining slurries, or even hazardous waste, our Solids Vacuum Pumps offer robust solutions. In this blog post, we will delve into the features, applications, and benefits of these incredible machines, focusing on one specific application scenario to highlight their effectiveness.


What is a GN Separation Solids Vacuum Pump?

At GN Separation, our GN Solids Vacuum Pump, also known as the sludge vacuum pump, is a specialized vacuum loading solids transfer pump powered entirely by compressed air. It is designed to handle solids, powders, slurries, and sludge with remarkable efficiency. These pumps are compact, robust, and efficient, capable of creating a vacuum of up to 25 inches of mercury and delivering material over distances of up to 1000 meters.

Key Specifications of GN Separation Solids Vacuum Pumps

Here are some of the important parameters for GN Separation’s Solids Vacuum Pumps:

Model Max Capacity Inlet/Outlet Size Vacuum Degree Max Suction Distance Max Discharge Distance Max Solids Content Max Solids Size Pressure Request Air Demand Weight Dimension (L×W×H)
GNSP-40B 40 m³/h 4” (114 mm) 85 Kpa / 25 inch HG 50 m 1000 m 80% Solids Sludge 75 mm 550-785 Kpa (80-114 PSI) 17 m³/min 892 kg 1690 × 1468 × 1983 mm
GNSP-20B 20 m³/h 4” (114 mm) 85 Kpa / 25 inch HG 50 m 500 m 80% Solids Sludge 50 mm 550-690 Kpa (80-100 PSI) 8 m³/min 386 kg 1421 × 900 × 1448 mm
GNSP-10B 10 m³/h 3” (89 mm) 85 Kpa / 25 inch HG 50 m 500 m 80% Solids Sludge 50 mm 550-690 Kpa (80-100 PSI) 4.3 m³/min 320 kg 1283 × 800 × 1370 mm

GN Separation offers these models in various capacities to suit different needs and applications.

Working Principle

The GN Solids Vacuum Pump operates by using compressed air to create a high vacuum inside the pump tank. The vacuum draws in material through the suction line. After a few seconds, the pump switches the direction of the compressed air to create positive pressure, which pushes the material out through the discharge line. This process is highly efficient and can be performed either manually or automatically, depending on the model.

Applications of GN Separation Solids Vacuum Pumps

GN Separation’s Solids Vacuum Pumps are incredibly versatile and are used in a variety of industries for different applications. Here are some of the most common applications:

  • Coal and Mining Slurries Transfer
  • Thickener De-sludge Cleaning
  • Sump, Shaft, and Pipeline Cleaning
  • Drilling Cuttings Transfer
  • Oil Spill Capture and Transfer
  • Hazardous Waste Recovery and Transfer

In the following sections, we will explore one of these applications in detail: Thickener De-sludge Cleaning.

Application Spotlight: Thickener De-sludge Cleaning

What is Thickener De-sludge Cleaning?

Thickeners are crucial in various industries for separating solids from liquids. Over time, thickened sludge accumulates at the bottom of the thickener tank and needs to be removed to maintain efficiency. GN Separation’s Solids Vacuum Pumps are specifically designed for this task, offering an efficient and effective solution for de-sludging operations.

Advantages of Using GN Separation Solids Vacuum Pumps for Thickener De-sludge Cleaning

  1. Efficient Sludge Removal

    GN Separation’s Solids Vacuum Pumps can handle up to 80% solids content and can transfer sludge with a maximum size of 75 mm. This high capacity allows them to quickly and effectively remove accumulated sludge from thickener tanks, which helps maintain optimal operation.

    • Example: The GNSP-40B model, with a capacity of 40 m³/h, can efficiently manage large volumes of sludge, ensuring that the thickener remains operational and efficient.
  2. Long-Distance Transfer

    These pumps can discharge material up to 1000 meters, making them ideal for transferring sludge from the thickener to a storage area or disposal site without the need for additional equipment.

    • Example: For a large-scale mining operation, the GNSP-40B can transfer thickened sludge from a distant thickener to a processing facility or disposal site.
  3. Compact and Robust Design

    GN Separation’s Solids Vacuum Pumps are designed to be compact and durable, which allows them to operate effectively in challenging environments and tight spaces.

    • Example: The GNSP-20B model, with a compact size of 1421 × 900 × 1448 mm, is ideal for use in confined spaces around the thickener tank.
  4. Automatic and Manual Modes

    The GNSP-40B model supports both manual and automatic operation modes, providing flexibility depending on the specific needs of the de-sludging process.

    • Example: During routine maintenance, the GNSP-40B can be operated manually for precise control, while for continuous operations, it can switch to automatic mode for efficiency.
  5. Explosion-Proof Capability

    The vacuum pump operates solely on compressed air, which means it is safe for use in explosive environments like those found in coal and oil industries.

    • Example: In a coal mining facility where there is a risk of explosive gases, the GN Solids Vacuum Pump provides a safe and reliable solution for sludge removal.


GN Separation’s Solids Vacuum Pump is an essential tool for various industrial applications, particularly for thickener de-sludge cleaning. Its efficient sludge handling capabilities, long-distance transfer potential, and robust design make it an ideal choice for maintaining the efficiency of thickening operations.

Whether you are dealing with coal mining slurries, hazardous waste recovery, or de-slicking tasks, GN Separation offers a reliable and effective solution with our high-performance equipment for challenging industrial tasks.

Learn More About GN Separation’s Solids Vacuum Pumps

For more information on GN Separation’s Solids Vacuum Pumps and their applications, visit our website or contact us directly.

Exploring GN Separation’s Dewatering System: Versatile Applications Across Different Industries

In the world of wastewater treatment, the challenge of effectively separating fine particles is a common one. GN Separation’s advanced Dewatering System offers a comprehensive solution to this problem, combining a Chemical Dosing Unit and a High-Speed Decanter Centrifuge to achieve superior results. In this blog, we will explore how this cutting-edge technology is applied across various industries, highlighting its effectiveness and versatility.

What is the GN Dewatering System?

The GN Dewatering System consists of two main components:

1. Chemical Dosing Unit: This unit prepares and doses chemicals necessary for the flocculation process, ensuring the effective aggregation of fine particles.2.Dewatering Centrifuge: The centrifuge separates the flocculated particles from the water, concentrating the solid waste while producing clean water.

Chemical Dosing Unit Features:

  • Compact and Corrosion-Resistant: Made from stainless steel and engineering plastics for durability.
  • Automated Control: PLC-controlled for precise chemical dosing and process monitoring.
  • Versatile: Suitable for powders, granular materials, and liquid chemicals.
  • Efficient Operation: Low energy consumption and easy maintenance.

Dewatering Centrifuge Features:

  • High-Speed Performance: Capable of separating ultrafine particles, achieving high separation efficiency.
  • Stable Operation: Designed for reliable, continuous operation in demanding environments.

Industry Applications of the GN Dewatering System

1. Municipal Wastewater Treatment

Municipal wastewater treatment plants are often tasked with managing large volumes of water that contain a wide range of contaminants, including fine particulates.

  • Application: The GN Dewatering System is used to handle municipal sewage sludge. The Chemical Dosing Unit adds flocculants to aggregate fine solids, which are then efficiently separated by the Decanter Centrifuge.
  • Benefits: This system improves sludge dewatering efficiency, reduces disposal costs, and helps meet regulatory requirements for treated water quality.

Example: A city’s wastewater treatment facility employs the GN Dewatering System to manage the fine particles in sludge, improving the quality of treated water and enhancing the overall efficiency of the treatment process.

2. Industrial Wastewater Treatment

Industrial processes in sectors like manufacturing, mining, and oil & gas produce wastewater with high concentrations of fine particles and contaminants.

  • Application: In industries such as mining and oil extraction, the GN Dewatering System is used to process tailings and other wastewater by-products. The system’s ability to handle fine particles makes it ideal for dealing with the by-products of industrial processes.
  • Benefits: Effective management of industrial wastewater, reducing environmental impact and facilitating the recycling of water.

Example: A mining company uses the GN Dewatering System to manage and treat wastewater from mineral processing, ensuring that the water released into the environment meets environmental standards.

3. Food and Beverage Industry

The food and beverage industry generates wastewater that often contains fine solids from production processes.

  • Application: The GN Dewatering System is employed in the food and beverage industry for the treatment of process water and wastewater, including the separation of fine particles from fruit and vegetable processing waste.
  • Benefits: Helps in maintaining clean production environments and managing waste products more effectively.

Example: A fruit juice manufacturing plant uses the GN Dewatering System to separate fine particles from the wastewater generated during juice extraction and cleaning processes.

4. Chemical and Pharmaceutical Industries

The chemical and pharmaceutical industries require high-precision wastewater treatment processes due to the presence of fine particles and hazardous substances.

  • Application: In these industries, the GN Dewatering System processes wastewater from chemical reactions and pharmaceutical production. The Chemical Dosing Unit adjusts the chemical composition to target specific contaminants, while the Decanter Centrifuge separates the treated particles from the liquid.
  • Benefits: Ensures compliance with stringent regulations and improves the safety of wastewater disposal.

Example: A pharmaceutical company uses the GN Dewatering System to manage wastewater from drug manufacturing processes, achieving high levels of purification and meeting environmental discharge standards.

5. Oil & Gas Industry

Oil & gas operations generate wastewater that contains fine particles from drilling and production activities.

  • Application: The GN Dewatering System is used for the treatment of produced water and drilling muds, separating fine solids and recovering water for reuse.
  • Benefits: Enhances the efficiency of water treatment processes and supports sustainable resource management.

Example: An oil field uses the GN Dewatering System to treat produced water, enabling the recycling of water and reducing the environmental impact of oil extraction activities.

6. Paper and Pulp Industry

The paper and pulp industry produces wastewater with high concentrations of fine fibers and chemicals.

  • Application: The GN Dewatering System is applied to the treatment of wastewater from paper mills, where it separates fine fibers and contaminants from the process water.
  • Benefits: Improves water reuse and helps manage the environmental impact of paper production.

Example: A paper mill uses the GN Dewatering System to treat wastewater from the pulp washing process, reducing the amount of waste sent to disposal and improving water recovery.


The GN Dewatering System, with its Chemical Dosing Unit and High-Speed Decanter Centrifuge, offers a robust solution for separating fine particles in wastewater across a variety of industries. Its advanced features, including high efficiency, automation, and corrosion resistance, make it a valuable tool for both municipal and industrial applications.

From municipal wastewater treatment to specialized industrial processes, the GN Dewatering System proves its versatility and effectiveness. By addressing the challenge of fine particle separation, GN Separation supports industries in achieving environmental compliance, improving operational efficiency, and advancing sustainable practices.

For more information on how the GN Dewatering System can benefit your industry, contact us or visit our website.

GN Separation: Large Linear Vibrating Screen GNLS3061 Ready for Shipping to Domestic Iron Mine

We are excited to announce that four units of the GNLS3061 Large Linear Vibrating Screen are ready for shipment to a domestic iron mine! This significant milestone underscores our commitment to delivering high-quality, efficient equipment tailored to meet the diverse needs of our customers in the mining and mineral processing industries.

Overview of GNLS3061 Large Linear Vibrating Screen

The GNLS3061 is a robust and versatile large linear vibrating screen designed to handle various bulk material processing tasks. Here’s a closer look at what makes this model a standout choice for mining and industrial applications:

1. High Screening Efficiency and Versatility

The GNLS3061 offers a substantial screen area of 18.3 m², making it suitable for high-capacity applications. This model is part of our large linear vibrating screen series, which includes other models such as GNLS2461, GNLS3661, GNLS3673, GNLS4361, and GNLS4373, catering to a range of capacities and screen area requirements.

2. Advanced Design Features

The GNLS3061 features advanced design elements that enhance its performance and longevity:

  • Durable Construction: The screen machine is constructed from high-strength alloy steel plate with superior impact toughness. Instead of welding, the plate is assembled using imported Huck rivets, which eliminates welding residual stress and improves the screen’s durability.
  • Optimized Structure: Finite element analysis has been used to optimize the structure and vibration parameters of the screen, reducing resonance and extending the service life of the machine.
  • Efficient Vibration System: The screen is equipped with a high-efficiency helical gear box type exciter. This exciter generates a large exciting force with minimal noise, ensuring stable operation and a long service life. The amplitude can be adjusted by changing the counterweight setting on the eccentric block.
  • Robust Beam Design: The cross beam under the screen uses a rectangular tube design for high strength and good toughness. Additionally, the surface of the beam is sprayed with polyurea for wear resistance, and rubber parts protect against erosion and wear in high-impact areas.
  • Modular Screen Panels: The polyurethane screen panels are modular, making them versatile and easy to replace.

3. Working Principle

The GNLS3061 operates based on the principle of forced synchronization. Two gear box vibrators create a linear back-and-forth motion, which drives the screen surface to vibrate. This vibration causes the materials on the screen to move, allowing for effective screening, grading, and separation.

Materials are fed into the screen through a feeding trough, where they are subjected to the vibrating screen’s action. The materials are classified based on particle size, with the finer particles passing through the screen and the larger particles being conveyed to the next process.

The angle between the vibration direction and the horizontal plane can be adjusted based on the material properties and site requirements, which influences the processing capacity and efficiency of the equipment.

4. Technical Specifications

Here are some key technical specifications for the GNLS3061 model:

  • Screen Area: 18.3 m²
  • Vibration Direction Angle: 45°
  • Vibration Frequency: 14–16 Hz
  • Power: 30 kW
  • Double Amplitude: 7–10 mm
  • Mesh Size: 0.2–25 mm
  • Capacity: 80–300 t/h
  • Installation Inclination:

These specifications ensure that the GNLS3061 can meet a variety of operational requirements in the mining, mineral processing, and other industrial sectors.

A Step Forward for the Domestic Iron Mine

The delivery of these four GNLS3061 units represents a significant advancement for the domestic iron mine. With their enhanced screening capabilities, these screens will play a crucial role in optimizing the iron ore processing operations, improving efficiency, and contributing to the overall success of the mining project.

We are proud to support the domestic mining industry with state-of-the-art equipment and look forward to the positive impact these screens will have at the iron mine.

Contact Us for Your Screening Needs

If you are interested in learning more about the GNLS3061 or any of our other products, please feel free to contact us for more information. Our team is ready to assist you with your equipment needs and provide customized solutions for your specific applications.

Thank you for choosing GN Separation. We are committed to delivering the best products and services to our valued customers!

Efficient Wastewater Treatment with GN Separation’s Dewatering Decanter Centrifuge

At GN Separation, we pride ourselves on providing advanced solutions for wastewater treatment, and our dewatering decanter centrifuge is a prime example. Designed specifically to meet the rigorous demands of both municipal and industrial wastewater treatment, our T series decanter centrifuge stands out in terms of performance, reliability, and efficiency.

Why Choose GN’s T Series Dewatering Decanter Centrifuge?

The GN T series dewatering decanter centrifuge, with a beach angle of 8.5 degrees, is specifically engineered for dewatering and thickening applications. It excels in handling various materials, including those with large particle sizes, significant density differences between solid and liquid, low viscosity, high concentration, and high treatment capacity. The T series ensures higher dryness in the discharged solids compared to traditional methods.

One of the key advantages of our decanter centrifuge is its versatility. It is effectively used in a wide range of applications, such as:

  • Drilling Mud and Oily Sludge
  • Environmental Protection Sewage
  • Cutting Fluid and Sand Washing Water
  • Mineral Washing and Industrial Wastewater
  • Municipal Sewage and River Sludge

Key Features and Specifications

Our T series dewatering decanter centrifuge offers several models to suit different capacity needs. Here are some specifications:

Model Bowl Diameter Bowl Length Max Bowl Speed Max G Force Main Motor Power Beach Angle
GNLW-224FT 220 mm 924 mm 5099 RPM 3200 G 11 KW 8.5°
GNLW-364FT 360 mm 1512 mm 3986 RPM 3200 G 22/30/37 KW 8.5°
GNLW-454FT 450 mm 1890 mm 3452 RPM 3000 G 37/45/55 KW 8.5°
GNLW-554FT 550 mm 2310 mm 3123 RPM 3000 G 55/90 KW 8.5°
GNLW-654ET 650 mm 2730 mm 2873 RPM 3000 G 90/110 KW 8.5°
GNLW-764A 760 mm 3328 mm 2612 RPM 2900 G 110/132/160 KW 8.5°

Advanced Engineering for Optimal Performance

The GN T series decanter centrifuge is built using high-quality materials and cutting-edge manufacturing techniques:

  • Durable Construction: The bowl and shaft caps are made from duplex stainless steel (SUS2205 or SUS2304), superior to SUS304 and SUS316 in terms of performance and corrosion resistance.
  • Enhanced Screw Design: The screw blade, formed by CNC equipment, offers higher slag conveying efficiency. The gradual change type screw blade improves the dewatering efficiency, making the solids drier.
  • Optimized Beach Angle and Pitch: This design separates the dewatering zone from the sedimentation zone, leading to clearer separated liquid and larger processing capacity.
  • Energy Efficiency: The deeper liquid pool design reduces kinetic energy loss, enhancing energy efficiency while maintaining high clarity in the discharged liquid.
  • Wear Resistance: The solid discharge port is equipped with a tungsten carbide sleeve for high wear resistance, ensuring long service life.
  • Convenient Adjustability: The overflow weir plate allows for flexible adjustment of the liquid pool depth to meet various material requirements.

Safety and Monitoring

Safety and operational efficiency are paramount in our designs. Our centrifuges come with comprehensive monitoring and alarm systems, ensuring automatic protection against overload, short circuit, and other operational anomalies. The system monitors parameters such as centrifuge speed, bearing temperature, vibration, and motor current in real-time, providing timely alerts for any abnormalities.

Custom Solutions and Support

Beyond providing high-quality dewatering decanter centrifuges, GN Separation offers turnkey solutions for the entire material dewatering process. This includes solutions for material transportation, classification, and dewatering, tailored to meet the specific needs of our clients.


The GN T series dewatering decanter centrifuge is a powerful tool in the fight against wastewater pollution, offering superior performance, durability, and efficiency. Whether dealing with municipal sewage, industrial wastewater, or any other challenging material, our centrifuge is designed to deliver optimal results, ensuring cleaner water and a healthier environment.

For more information on our products and services, please visit our website or contact our sales team. Let GN Separation help you achieve your environmental goals with our state-of-the-art dewatering solutions.

Exploring the Capabilities of GN Solids Vacuum Pump: Revolutionizing Industrial Waste Management

At GN SEPARATION, we take pride in our new solutions for industrial waste management. One of our flagship products, the GN Solids Vacuum Pump, also known as the sludge vacuum pump, is an innovation in the field of solids transfer. This vacuum loading solids transfer pump is fully powered by compressed air, making it an efficient and reliable solution for transferring solids, powder, slurry, and sludge.

What Makes GN Solids Vacuum Pump Stand Out?

The GN Solids Vacuum Pump is designed to be compact, robust, and incredibly efficient. It utilizes a powerful vacuum of 25″ hg to load materials and is capable of delivering them over distances of up to 500 meters. Available in three different capacities (10 m3/h, 20 m3/h, and 40 m3/h), these pumps can also be customized as Group Pump Units on a single skid, offering versatile and scalable solutions for various industrial needs.

Key Applications

The versatility of the GN Solids Vacuum Pump makes it suitable for a wide range of applications, including:

  • Thickener De-sludge: Efficiently removes sludge from thickeners.
  • Tunneling & TBM Applications: Ideal for tunnel boring machines and excavation projects.
  • Sump and Shaft Cleaning: Cleans sumps and shafts effectively.
  • Tailings and Ash Pond Cleaning: Handles the cleaning of tailings and ash ponds in power stations.
  • Oil Spill Capture and Transfer: Captures and transfers oil spills efficiently.
  • Hazardous Waste Recovery: Safely recovers and transfers hazardous waste.
  • Drilling Mud and Cuttings Transfer: Transfers drilling mud and cuttings in oil and gas operations.
  • Mining Slurries and Offal Transfer: Moves mining slurries and waste materials.
  • Bulk Transfer: Handles bulk transfer operations, both loading and unloading.

Working Principle of the GN Solids Vacuum Pump

The GN Solids Vacuum Pump operates on a simple yet powerful principle. Compressed air is fed into the pump, creating a high vacuum inside the pump tank. This vacuum draws materials into the tank through the suction line. After a few seconds, the valve changes the air direction to create positive pressure, pushing the material out of the pump tank through the discharge line.

The GNSP-40A, a larger model, offers both manual and automatic modes, while the smaller models, GNSP-10A and GNSP-20A, operate automatically. This pneumatic operation ensures safety and reliability, especially in hazardous environments like the oil, gas, and coal industries, where explosion-proof equipment is essential.

GN Vacuum Cleaner for Industrial Waste

In addition to the GN Solids Vacuum Pump, we offer the GN Mini Vacuum Cleaner, designed for tough industrial clean-up jobs. This mobile and lightweight suction tool is air-operated, producing a high vacuum for efficient suction and can switch to positive pressure for discharge. Operators can set up automatic suction and discharge cycles, enhancing efficiency and ease of use.


The GN Solids Vacuum Pump and GN Mini Vacuum Cleaner are at the forefront of industrial waste management technology. Their robust design, efficient operation, and versatility make them invaluable tools for a wide range of applications. At GN SEPARATION, we are committed to providing innovative solutions that meet the evolving needs of our clients.

For more information on our products and how they can benefit your operations, please visit our website or contact our sales team. We look forward to helping you achieve greater efficiency and effectiveness in your waste management processes.