Category Archives: Mining vibration screens

GN Vibrating Screen for Domestic Iron Mine

GN Separation has recently finished delivering and commissioning a vibrating screen system for a domestic iron ore mine, bolstering the customer’s continuous endeavors to enhance mineral processing efficiency and comply with the increasingly rigorous industry standards. The supplied equipment comprises one Large Linear Vibrating Screen (GNLSP3073) and four 5-Deck Stack Vibrating Screens (GND5Z1014), which together create an integrated screening solution tailored to various stages of the beneficiation process.

In recent times, the iron ore mining and processing sector has encountered numerous challenges, including dwindling ore grades, elevated product quality demands, and intensified pressure on energy consumption and environmental impact. Consequently, efficient screening and classification equipment have emerged as crucial elements in optimizing process flows, ensuring stable downstream separation, and minimizing overall operational costs. Considering the customer’s site-specific conditions and process objectives, GN provided a blend of high-capacity linear screening and high-efficiency fine screening equipment to satisfy both throughput and precision needs.

The GN Large Linear Vibrating Screen (GNLSP3073) primarily consists of a box-type vibration exciter, screen box, vibration damping springs, support structure, and driving device. Its linear vibration path guarantees steady material movement and effective separation across the entire screen surface. The screen can be installed horizontally or at an inclined angle, depending on process requirements. In this iron mine project, the large linear vibrating screen is mainly utilized for wet classification, dewatering, and related processes, assisting in the removal of excess water and oversized particles prior to downstream beneficiation. This type of equipment finds broad applications not only in mineral processing but also in coal preparation, gravel aggregate production, construction materials, and the chemical industry. GN also offers customization options for single-layer or double-layer screen surface structures and overall screen dimensions to meet specific customer needs.

GN also provided four GND5Z1014 5-Deck Stack Vibrating Screens to boost fine material classification efficiency. This stack vibrating screen, developed independently by GN, is particularly well-suited for wet screening, classification, and dewatering of fine-grained materials. It can be configured with 2 to 5 screen decks according to on-site requirements, enabling multiple particle size separations within a compact space. The GN Stack Vibrating Screen employs a unique vibration mode, driven by a single vibration source with dual vibration motors. By leveraging the principle of two-degree-of-freedom resonance, the entire machine achieves linear vibration, combining energy efficiency with superior screening performance.

Thanks to its advanced design, the GN Stack Vibrating Screen boasts high screening efficiency, substantial processing capacity, a simple structure, and stable, reliable operation. It is widely acknowledged as one of the leading solutions in the field of fine particle screening. The equipment is equipped with polyurethane screen mesh, which effectively reduces maintenance frequency and operational costs for the mine.

The successful implementation of GN vibrating screens in this domestic iron mine once again underscores GN’s technical prowess and practical experience in mineral processing equipment. GN will persist in focusing on technological innovation and customized solutions, providing dependable screening and separation equipment to support the sustainable development of the mining and processing industry.

GN Vibrating Screen for Domestic Iron Mine

GN Separation recently completed the delivery and commissioning of a vibrating screen system for a domestic iron mine, supporting the customer’s ongoing efforts to enhance mineral processing efficiency and comply with increasingly stringent industry requirements. The supplied system includes one large linear vibrating screen (GNLSP3073) and four units of 5-Deck Stack Vibrating Screens (GND5Z1014), forming an integrated screening solution covering multiple stages of the beneficiation process. Continue reading →

GN Double-layer Banana Screen for Iron Ore Application

With the continuous development of the global mining industry, iron ore processing plants are facing increasingly stringent requirements for higher throughput, improved screening efficiency, and extended equipment service life. Against this background, banana vibrating screens have become a preferred solution for iron ore classification, thanks to their large processing capacity, multi-slope screening design, and excellent separation performance. Continue reading →

GN Double-layer Banana Screen for Iron Ore Application

As the global mining sector experiences sustained growth, iron ore processing plants are grappling with escalating demands to ramp up throughput, elevate screening efficiency, and prolong the service life of their equipment. In the face of these formidable challenges, banana vibrating screens have risen to prominence as the preferred solution for iron ore classification, owing to their impressive processing capacity, innovative multi-angle screening design, and outstanding separation capabilities.

GN Separation has recently completed the production of a Double-Layer Banana Vibrating Screen (Model GNBD3073), specifically engineered for an iron ore classification endeavor. The equipment is primed for dispatch and on-site installation, serving as a shining example of GN’s engineering excellence in heavy-duty screening applications.

The GNBD3073 banana screen is meticulously crafted to endure the rigorous demands of mining operations, encompassing high impact loads, abrasive materials, and uninterrupted use. Its side wallboards feature a non-welded construction, utilizing high-strength alloy steel plates celebrated for their exceptional impact toughness. Rather than relying on conventional welding, imported Huck rivets are employed for hydraulic tension assembly, effectively eradicating welding residual stress and substantially enhancing structural reliability and fatigue resistance.

To guarantee stable operation and an extended service life, GN engineers harnessed the power of finite element analysis (FEA) to refine both the structural design and vibration parameters. This rigorous approach enables the screen to avoid natural frequencies at all operational stages, mitigating the risk of resonance and minimizing vibration-induced damage, thereby prolonging the equipment’s overall lifespan.

Beneath the screen deck, the cross beams are ingeniously designed with rectangular tubes, providing a sturdy and stable support framework. Conversely, the excitation beam box showcases a lightweight design without sacrificing strength or toughness. Key welded components undergo post-welding heat treatment to alleviate stress and bolster long-term operational stability.

For enhanced resistance to wear and corrosion, the beam surfaces are coated with polyurea using cutting-edge spray equipment imported from the United States. Furthermore, rubber protective components are strategically positioned in areas susceptible to intense impact and abrasion. These measures collectively fortify the screen’s resilience against erosion and wear, ensuring dependable performance in the demanding realm of iron ore screening.

The GNBD3073 is propelled by a high-efficiency helical gear box-type exciter, which generates a colossal excitation force while maintaining minimal noise levels and stable operation. The exciter is meticulously engineered for longevity and reduced maintenance requirements. Its eccentric blocks are situated outside the exciter box, granting operators the flexibility to effortlessly adjust the vibration amplitude by modifying the counterweight configuration to accommodate diverse materials and process conditions.

To cater to a broad spectrum of customer needs, GN banana vibrating screens are offered as a versatile series of products adaptable to various production capacities and process flows. The screen incorporates modular polyurethane screen panels, renowned for their exceptional wear resistance, versatility, and rapid replacement capabilities. This modular design significantly slashes downtime and curtails overall operating and maintenance costs for customers.

With this triumphant application in iron ore processing, GN Separation reiterates its unwavering commitment to delivering high-efficiency, reliable, and cost-effective screening solutions to the global mining industry. GN remains steadfast in its pursuit of technological innovation and product optimization, continuously endeavoring to provide advanced vibrating screening equipment that empowers customers worldwide to achieve efficient and sustainable mineral processing operations.

GN Trash Screen Used for Impurity Removal before Iron Ore Flotation

GN Separation has recently provided its high-performance Trash Screen system to an iron ore beneficiation project, aiming to eliminate impurities before the flotation process. In today’s mineral processing industry, ensuring the cleanliness and stability of flotation feed is vital for producing higher-grade concentrates and ensuring smooth plant operations. The GN Trash Screen is precisely designed for this task, offering reliable separation of unwanted debris from valuable ore and assisting operators in maintaining optimal process efficiency.

Throughout the mining and transportation of iron ore, various impurities inevitably find their way into the raw material flow. These impurities encompass plant roots, bark, twigs, plastic pieces, blasting fuse remnants, and other foreign objects that can hinder flotation performance. If not removed in advance, these impurities can clog flotation cells, reduce aeration effectiveness, disrupt reagent dispersion, and ultimately lead to inconsistent recovery rates. In severe scenarios, they may even require shutdowns for cleaning, resulting in production downtime. The GN Trash Screen is engineered to prevent such issues by implementing an efficient pre-screening step that protects the flotation circuit.

The GN Trash Screen is equipped with a sturdy vibratory mechanism that generates high-frequency screening motion, enabling quick material stratification and effective impurity removal. When paired with specially crafted screen panels, the equipment ensures accurate classification and consistent screening precision. These screen panels are made from wear-resistant materials capable of handling abrasive iron ore slurry, providing a prolonged service life and minimizing maintenance requirements. Even under heavy operational loads, the screen maintains a stable throughput and delivers exceptional dewatering and separation capabilities.

Another notable advantage of the GN Trash Screen is its simple design and ease of use. The machine is designed for effortless integration into existing beneficiation lines, and its open structure allows for easy access during inspections and routine maintenance. This enhances overall plant reliability and helps operators reduce unplanned downtime. By eliminating oversized contaminants early in the process, the Trash Screen not only safeguards flotation equipment but also enhances the stability of downstream processes and decreases the likelihood of operational interruptions.

With cleaner feed entering the flotation circuit, the quality of the final iron concentrate can be significantly enhanced. Stable flotation conditions lead to more efficient reagent consumption, improved recovery rates, and more consistent product quality. For plants aiming to optimize production efficiency, lower operating costs, and maintain high output stability, GN’s impurity-removal solution offers a substantial performance boost.

GN Separation continues to focus on advancing screening and solid-liquid separation technologies tailored to the mining and mineral processing industry. The successful deployment of the GN Trash Screen in iron ore flotation preparation highlights its dedication to providing reliable, high-quality equipment that meets the stringent demands of global beneficiation operations.

GN Trash Screen Used for Impurity Removal before Iron Ore Flotation

GN Separation has recently supplied a high-performance Trash Screen to an iron ore beneficiation project, where it plays a crucial role in impurity removal prior to the flotation stage. In modern mineral processing, maintaining a clean and consistent flotation feed is essential for achieving higher concentrate grades and ensuring stable plant operation. Engineered specifically for this purpose, the GN Trash Screen provides dependable separation of unwanted debris from valuable ore, helping operators safeguard process efficiency and equipment reliability. Continue reading →

GN 13 Units 5-Deck Stack Vibrating Screen for Classification of Ilmenite Ore

This week, GN Separation successfully completed the assembly and factory testing of 13 units of 5-Deck stack vibrating screens. These units, specifically engineered for high-efficiency ilmenite ore screening, are currently undergoing final inspections before being dispatched to a major domestic ilmenite mining site next month. Continue reading →

GN 5-DECK STACK VIBRATING SCREEN FOR DOMESTIC IRON MINE

This week, GN Separation achieved a significant milestone by successfully assembling four GND5Z1014 Stack Vibrating Screens and completing their factory test runs. Specifically engineered for high-efficiency iron ore screening, these units are now undergoing final inspections and are slated for delivery to a prominent domestic iron ore mining site next month.

The Strategic Importance of Stack Vibrating Screens in Iron Ore Processing

Iron ore, the foundational material for global steel production, necessitates rigorous processing to adhere to the exacting quality standards set by modern industries. Screening is a pivotal stage in this process, segregating ore particles by size to optimize downstream processing efficiency. While traditional single-deck vibrating screens have proven effective, they often encounter challenges in managing large material volumes while maintaining precision, especially in fine particle separation.

Stack vibrating screens, also known as multi-deck screens, emerge as a critical solution in this context. By vertically stacking multiple screening decks, these machines efficiently process large material volumes within a single unit. This compact, high-capacity design not only minimizes space requirements but also reduces energy consumption and enhances throughput compared to single-deck screens. For iron ore producers, this translates into elevated recovery rates of valuable minerals, diminished operational costs, and improved environmental sustainability through reduced waste generation.

Key Features of the GN Stack Vibrating Screen

  1. Multi-Deck Efficiency:
    The GND5Z1014 boasts five independent screening decks, enabling simultaneous separation of materials at varying flow rates, tailored to the specific characteristics of the feed.
  2. High-Frequency Vibration Technology:
    Powered by dual-vibration motors, the screen generates high-frequency, low-amplitude vibrations that effectively mitigate blinding and pegging—common challenges in processing sticky or moisture-laden iron ore. This ensures consistent and accurate screening, even with challenging materials.
  3. Robust Construction and Wear Resistance:
    Constructed with high-strength steel frames, the GND5Z1014 is designed to endure the abrasive conditions typical of iron ore processing. Key components, such as the screen decks, are coated with polyurea to prolong service life and minimize maintenance downtime.
  4. Rapid Screen Mesh Replacement:
    The stack vibrating screen is equipped with polyurethane screen mesh, which can be swiftly replaced by loosening and fastening the screen blocking device, thereby reducing downtime and enhancing operational efficiency.

Strategic Implications and Market Outlook

The impending deployment of the GND5Z1014 screens underscores GN Separation’s commitment to bolstering China’s strategic mineral security initiatives. With domestic iron ore production under increasing pressure to meet escalating steel demand, efficient processing technologies are imperative for maximizing yield from existing reserves.

GN Separation’s latest achievement reflects its broader strategy of integrating localized expertise with global technology trends. The successful launch of various mining screens at the GN factory positions GN Separation to capture a larger market share in the vibrating screen sector, offering professional and reliable screening solutions to users both domestically and internationally.

By leveraging cutting-edge technology and a deep understanding of market needs, GN Separation is poised to drive innovation and efficiency in the iron ore mining industry, reinforcing its position as a trusted partner in the global mining community.

GN 5-Deck Stack Vibrating Screen for Domestic Iron Mine

This week, GN Separation successfully completed the assembly and factory testing of four GND5Z1014 stack vibrating screens. These units, specifically engineered for high-efficiency iron ore screening, are currently undergoing final inspections before being dispatched to a major domestic iron ore mining site next month. Continue reading →

GN Separation Will Participate in CCME 2025

Place: Capital International Convention and Exhibition Center (Shunyi, Beijing)
Date: October 28–31, 2025
Booth No.: A4601

GN Separation is pleased to announce its participation in the 22nd China Coal & Mining Expo (CCME 2025), one of the largest and most influential trade fairs for the coal and mining industry. The exhibition will take place at the Capital International Convention and Exhibition Center in Beijing, where GN will showcase its advanced solid-liquid separation technologies for mining, tailings management, and industrial dewatering.

Continue reading →