Author Archives: GN Decanter Centrifuge

GN NEW SEPARATION EQUIPMENT SHOWROOM HAS OPENED

GN Separation has officially opened its new equipment showroom, marking a key milestone in the development of its new factory. This state-of-the-art facility reflects the company’s dedication to innovation and technological progress, offering visitors an engaging and informative experience that highlights GN Separation’s operations and capabilities.

The showroom is organized into several distinct modules, each providing a detailed overview of GN Separation’s history, industry applications, and cutting-edge separation equipment. These modules include an introduction to the company, a section on industry applications, and a comprehensive display of the company’s equipment.

In the Company Introduction section, visitors can trace the journey of GN Separation from its modest beginnings as a small workshop with just 1,400 square meters of outdoor processing space to its current position as a leading enterprise spanning 120 acres and employing around 300 people. Over 16 years, GN Separation has evolved into a well-established name in the industry, earning the prestigious “Key Little Giant Enterprise” title from Hebei Province. This recognition highlights the company’s commitment to innovation, research, and development, as well as its significant contributions to the industry and society. The company’s growth, despite numerous challenges, underscores its resilience and success.

The Industry Applications and Separation Equipment Display sections offer visitors insight into the wide range of industries served by GN Separation’s equipment. In the drilling mud solids control sector, the company provides a diverse range of solutions, including shale shakers, de-sanders, mud separation centrifuges, and complete mud recycling systems. These solutions are critical for applications in oil and gas drilling, horizontal directional drilling (HDD), and slurry separation in piling and tunnel boring machine (TBM) projects. GN Separation also caters to the wastewater treatment industry, with equipment like sludge dewatering centrifuges, sludge screw presses, and chemical dosing units. Additionally, the company offers advanced mining equipment, such as ore vibrating screening for classification and dewatering, as well as dewatering centrifuges for tailings slurry dewatering and drying.

The showroom serves as a testament to GN Separation’s commitment to producing high-quality, durable, and efficient equipment tailored to the needs of clients across various industries. Known for their robustness and environmental efficiency, GN Separation’s products are designed to enhance operational productivity while minimizing environmental impact. The company’s ongoing focus on continuous innovation ensures that its solutions remain at the forefront of technological advancements, addressing the ever-evolving challenges faced by its customers.

Looking ahead, GN Separation is excited to welcome visitors from around the world to its new showroom, where they can explore the company’s expertise and discuss potential collaboration opportunities. With a solid foundation built on innovation, quality, and customer service, GN Separation is poised for even greater achievements in the field of separation technology.

How To Recover Waste Oil Effectively

GN waste oil recovery decanter centrifuges are tailored to fulfill the separation needs of the waste oil processing sector. Waste oil typically contains oil, water, and solids, and GN Separation equipment provides efficient solutions for separating these three phases while maximizing oil recovery.

Waste Oil Recovery Treatment

The waste oil recovery and treatment process involves handling various types of waste oil, including:

  1. Solids, water, and oil found at the bottom of oil storage tanks.
  2. Oily residues and slop oils generated from oil refineries.
  3. Oil sludge lagoons containing a mixture of oil, water, and solids.
  4. Oil-water mixtures from ship ballasts, which are the spaces in a ship’s hull that are partially or completely filled with water to improve stability.
  5. Sludge treatment from API (American Petroleum Institute) oil-water separators, which are used to separate oil and water in industrial settings.
  6. Discarded lubricant oils and emulsions from various industries.
  7. Industrial oil/water and emulsion waste streams, which may contain a mix of hydrocarbons, water, and other contaminants.

Advantages of GN Waste Oil Recovery Centrifuge

  1. More sizes available: The centrifuge is available in various sizes with a large length/diameter ratio of 4.2:1 or greater, allowing for greater flexibility in handling different volumes and types of waste oil.
  2. High G force: With a G force of up to over 3000 G, the centrifuge can effectively separate oil, water, and solids, ensuring high separation efficiency and oil recovery.
  3. Two-phase or three-phase separation: The centrifuge can be configured as a two-phase or three-phase separation decanter, depending on the specific needs of the waste oil recovery process.
  4. Explosion-proof design: The nitrogen purged centrifuge is designed for explosion-proof operation, ensuring safety in hazardous environments.
  5. Corrosion-resistant materials: The duplex stainless steel bowl is resistant to corrosion, extending the lifespan of the centrifuge and reducing maintenance costs.
  6. Automated operation: The centrifuge is equipped with VFD control, HMI, and PLC for automated operation, reducing the need for manual intervention and improving process efficiency.
  7. Adjustable parameters: The bowl speed, differential speed, and pump capacity can be adjusted to optimize the separation process for different types of waste oil.
  8. Wear protection: Various scroll and bowl wear protection systems made of tungsten carbide materials ensure the durability of the centrifuge and reduce the need for frequent repairs.
  9. Customized design: The centrifuge can be customized according to clients’ requirements, allowing for greater flexibility in meeting specific process needs.
  10. Global support: With worldwide partners and branches, GN offers fast support for waste oil recovery processes, ensuring that clients can rely on reliable and efficient service.

 

 

GN Hydraulic Drive Decanter Centrifuge Utilized In Overseas Starch Production Project

Introduction

GN Separation has recently finished hydraulic drive decanter centrifuge, which will be crucial for a major starch production project located overseas.

The Importance of Hydraulic Centrifuges in Starch Production

Hydraulic centrifuges are indispensable in the starch production process, as they facilitate the efficient separation of starch granules from the slurry resulting from wet milling. This separation step is crucial for ensuring the purity and high quality of the final starch product, which is vital for diverse applications across the food, textile, pharmaceutical, and bioenergy industries. By utilizing the centrifugal forces generated by the machine, hydraulic centrifuges effectively eliminate impurities, fibers, and other unwanted substances, yielding a refined starch product that is ready for subsequent processing or immediate use.

GN Centrifuge Solution Tailored for Starch Production

GN’s hydraulic centrifuge, specifically designed for starch production, meets the stringent demands of the food industry. Here are the key features of this equipment:

  1. Food-Grade Safety with Polished Surfaces: Recognizing the significance of hygiene and product purity, GN’s centrifuge undergoes a polishing process on both the inner surface of the centrifuge bowl and the pushing screw propeller. This finish prevents material residue, ensuring that each batch of starch produced meets the highest food-grade quality standards.
  2. Internationally Renowned Hydraulic System: The precision machinery is powered by a reliable and precise hydraulic system from Swiss brand Viscotherm. This system includes a hydraulic differential for smooth operation and an efficient air-cooling system to maintain optimal temperatures during extended use.
  3. Advanced Monitoring and Safety Features: GN’s hydraulic drive centrifuge is equipped with a range of intelligent sensors, including automatic lubrication systems, temperature sensors, and vibration sensors. These features work together to detect and address any potential issues, ensuring safe and continuous operation of the equipment.
  4. Hygiene-Compliant Control Cabinet: Designed with the food industry’s hygiene requirements in mind, the control cabinet is made of corrosion-resistant stainless steel and is easy to clean. It is equipped with VFD (Variable Frequency Drive) and PLC (Programmable Logic Controller) overload protection, enhancing operational safety and extending the equipment’s lifespan.

 

 

 

The structure and characteristics of common DC bus AC VFD system

The decanter centrifuge is driven by the main motor, and the differential shaft and the auxiliary motor are coaxially connected. The speed of the main and auxiliary motors is controlled by the inverter, and the DC bus of the two are connected in parallel, and the three-phase power is input to the main inverter. Continue reading →

GN Solids Control System Applied For Deep-Well Drilling Rig.

Introduction

Recently, GN solids control system is ready to serve China Drilling Company in coalfield geology operations.This system is designed to optimize the management of drilling fluids, thereby enhancing the overall drilling process.

Structure of the System

The solid control system includes four key components:

Mud Tanks. These tanks play a crucial role in storing and managing drilling fluids. They help separate and treat solids from the drilling mud, ensuring the fluid remains in its best condition for efficient drilling.

The solid control system incorporates two GNZS594 Shale Shakers, which serve as its foundation. These shakers are capable of processing up to 140 cubic meters of drilling mud per hour, making them suitable for handling large volumes. Each shaker is equipped with a single-layer setup featuring four shale shaker screens, totaling a screening area of 2.73 square meters. The adjustable G-force can reach up to 7.5G, and the screen box can be tilted between -1 and +5 degrees, allowing for customization based on drilling needs. Additionally, the GNZS594 shale shakers are available with various explosion-proof standards, such as ExdIIBT4/IECEX/ATEX, ensuring safety in hazardous environments.

The GNZS594J-2S12N Mud Cleaner is a compact and efficient unit that integrates a desander hydrocyclone, a desilter hydrocyclone, and a bottom flow shale shaker. This combination makes it an ideal solution for second and third-stage solid control in drilling mud processes. Its space-saving design does not compromise on performance, ensuring that the drilling mud is thoroughly cleaned of unwanted solids. The GNZS594J-2S12N Mud Cleaner is therefore a high-performance option for maintaining the quality of drilling mud.

The GNLW452 Drilling Fluid Decanter Centrifuge is engineered to efficiently separate solid particles from light mud at a reduced cost. Powered by a 75hp main motor and a 30hp auxiliary motor, this centrifuge boasts a processing capacity of 40 cubic meters per hour and a high separation factor of 815G. Its compact design, featuring both motors positioned at one end, conserves space and enhances operational efficiency. Beyond drilling applications, the GNLW452 decanter centrifuge is versatile and can be utilized in various industries, including industrial waste water treatment, marine oil spill recovery, oil sludge separation, municipal sewage purification, and mining wastewater treatment.

GNLMZ Linear Vibrating Screen for Domestic Coal Chemical Plant

This week at GN Factory, a batch of GNLMZ series linear dewatering vibrating screens are nearing completion. Designed for a domestic coal chemical plant, these advanced vibrating screens are now in the final assembly stage. Factory trials will soon commence, with shipment scheduled shortly after.

Applications of Linear Vibrating Screens in Coal Chemical Plants

Linear vibrating screens are essential for separating solid particles from slurries and dewatering wet materials. These screens effectively handle high-moisture content materials, delivering dry, process-ready outputs. In coal chemical plants, they are commonly employed in:

  • Coal washing
  • Coke production
  • By-product treatment(e.g., coal tar, ammonia)

Key Features of GNLMZ Series Linear Vibrating Screens

The GNLMZ series vibrating screens from GN Separation is tailored for the challenging demands of the coal chemical industry, combining advanced engineering with practical, durable design features:

HUCK Rivet Technology for Enhanced Durability
The GNLMZ series uses HUCK rivet technology to connect screen deck wall plates. This eliminates welding stress, ensuring a more robust and reliable structure capable of withstanding heavy-duty applications.

Optimized Design Using Finite Element Analysis (FEA)
The structural integrity and vibration efficiency of the GNLMZ screens have been meticulously optimized through FEA. This design process identifies potential weak points, ensuring the screens deliver consistent, reliable performance under high stress.

Corrosion-Resistant and Wear-Resistant Coatings
Polyurea coatings protect material contact areas and high-wear components. This advanced coating is renowned for its durability, abrasion resistance, and corrosion protection, significantly extending the equipment’s service life.

Versatile Product Range for Custom Applications
GN Separation offers a variety of GNLMZ models to accommodate diverse process conditions and production needs. Customers can select the most suitable screen for their specific application, maximizing operational efficiency and product quality.

Modular Polyurethane Screen Panels for Easy Maintenance
Modular polyurethane panels allow for quick and simple replacement, minimizing maintenance time and reducing downtime. This feature ensures continuous and efficient operation.

As these GNLMZ series vibrating screens approach completion, they are poised to contribute to the efficient and sustainable operations of the customer’s coal chemical plant. GN Separation remains committed to delivering high-quality equipment tailored to industry-specific challenges.

Decanter Centrifuge Unit For European Drilling Company

Introduction

In the realm of oilfield drilling, solids control equipment is of utmost significance as it enhances drilling efficiency, cuts costs, and benefits the environment. Today, we present a solids control decanter centrifuge unit, equipped with a centrifuge, lifting frame, screw pump, and other auxiliary devices, that has been supplied to a European drilling company.

Compact Structure of Centrifuge Unit

GNLW Series Decanter Centrifuge

The GNLW series decanter centrifuge stands as an effective solid-liquid separation tool. It excels in performing feeding, centrifugal sedimentation, and unloading processes at top speeds, making it indispensable for applications such as barite recovery, fine solid removal, drilling fluid solid content reduction, drilling fluid density and viscosity control, drilling fluid performance assurance, and accelerated drilling.

Working Principle

The operational principle of the GNLW series decanter centrifuge revolves around centrifugal sedimentation for separating drilling suspensions. The suspension is introduced into the rotating drum through the feed pipe, specifically via the liquid outlet holes in the spiral pusher. Here, under the intense centrifugal force, solid particles are pressed against the drum’s inner wall. These particles are then propelled towards the solids discharge port located at the drum’s smaller end by the spiral pusher’s blades. Simultaneously, the liquid phase flows out through the overflow holes situated at the drum’s larger end.

Model and Performance

The customer has opted for the GNLW453DVFD model decanter centrifuge, featuring a drum diameter of 450mm and a drum length of 1540mm. This model boasts a processing capacity of up to 264GPM (60m³/h) and is capable of separating particles sized between 2~5µm.

Screw Pump

The screw pump is preferred due to its minimal attachments, compact structure, small footprint, and ease of maintenance. The pump’s rotor and stator are the wearable components, designed for simple replacement. Notably, the stator is crafted from artificial rubber, granting it a unique edge in transporting high-viscosity and tough suspended waste slurry compared to alternative pumps.

 

 

 

The Application of GN Centrifuges in the Mining Industry

Introduction

The mining industry is a sector that is heavily reliant on advanced technology to enhance efficiency and productivity. One such technology that has proven to be invaluable is the centrifuge. GN Centrifuges play a pivotal role in various processes within the mining industry, from mineral processing to environmental management.

Dewatering before further refinery

In mineral processing, GN centrifuges are primarily used for solid-liquid separation. They are highly effective in dewatering fine particles, which is a common challenge in mining operations. By spinning at high speeds, centrifuges generate a force that separates the solid particles from the liquid, resulting in a drier product that is easier to handle and transport. This process is crucial for improving the efficiency of downstream processes such as smelting and refining.

Classification and Extraction of Valuable Metals

Another significant application of centrifuges in mining is in the extraction of precious metals like gold and platinum. These metals are often found in low concentrations within ore, making their extraction a complex and costly process. Centrifuges are used to separate these valuable minerals from the waste material, increasing the yield and purity of the extracted metals.

Waste Water Treatment

Furthermore, centrifuges are instrumental in environmental management within the mining industry. They help in the treatment of wastewater generated during mining activities. By removing suspended solids and other contaminants, centrifuges ensure that the water is clean enough to be discharged back into the environment or reused in the mining process, thus promoting sustainability.

In conclusion, GN centrifuges have become an indispensable tool in the mining industry. Their ability to efficiently separate solids from liquids, extract valuable minerals, and treat wastewater makes them a versatile and essential piece of equipment. As technology continues to advance, the role of centrifuges in mining is likely to expand, further enhancing the industry’s productivity and environmental stewardship.