Meta description: Five GN GNLW764-VFD 30-inch bowl decanter centrifuges are operating at a mining project at 4,500 m altitude, supported by an automatic chemical dosing unit and screw pumps for efficient tailings slurry separation.
A Demanding Mining Project from the Tender Stage
Five GN GNLW764-VFD variable-frequency drive (VFD) decanter centrifuges are now operating at a major international mining tailings treatment project. The contract was awarded by a large mining company following a highly competitive international tender involving strict qualification requirements and demanding technical specifications.
The project demonstrates how industrial decanter centrifuges for solid-liquid separation can support the treatment of large volumes of mineral slurry under challenging operating conditions.
Key Operating Challenges
The mining operation faces three major challenges:
4,500 m altitude: High-altitude conditions require careful consideration of mechanical reliability, electrical systems, and equipment adaptation to the operating environment.
Large slurry volumes: The plant requires sufficient processing capacity to handle high flow rates during continuous operation.
Abrasive mineral slurry: Hard mineral particles increase wear on equipment, making wear-resistant components and appropriate material selection essential.
The GN Solution: High-Capacity Decanter Centrifuges
Rather than supplying a standard configuration, GN’s engineering team developed a solution tailored to the material characteristics, operating conditions, and specific requirements of the project.
The GN GNLW764-VFD decanter centrifuge features a large bowl with an approximately 30-inch (760 mm) diameter and a variable-frequency drive system that allows operating parameters to be adjusted according to process requirements.
Key features include:
Large-diameter bowl: Designed for industrial applications requiring the processing of large slurry volumes.
Variable-frequency drive: Enables adjustments to rotational speed and helps optimize separation parameters according to material characteristics.
Wear-oriented equipment configuration: Components and materials can be selected to address the abrasive conditions of the application.
Continuous processing capability: The system configuration is intended to support stable performance during tailings slurry treatment.
For additional equipment configurations and applications, explore the GN industrial decanter centrifuge range.
From One Pilot Unit to Five Operating Centrifuges
Before expanding the supply, GN delivered one pilot unit for evaluation under actual mine-site conditions.
Following an extended period of field testing and operation, the customer reported satisfactory results in operational stability, separation performance, energy consumption, and failure frequency.
Based on these results, the customer purchased four additional units of the same model, bringing the installation to five GNLW764-VFD decanter centrifuges.
This field-validation process allowed the customer to evaluate the equipment under real operating conditions before expanding the installation to five units.
An Integrated Tailings Slurry Treatment System
In addition to the five decanter centrifuges, the supplied package includes:
A 6,000-liter automatic chemical dosing unit.
Dedicated screw pumps for material feeding and transfer.
These components work together to form an integrated tailings slurry treatment system that combines chemical conditioning with mechanical centrifugal separation.
Appropriate chemical selection, feed conditions, and operating parameters are important factors in achieving consistent solid-liquid separation results.
Depending on the process design, this type of system can support improved mineral waste management, process-water recovery, and environmental management objectives at mining operations.
For additional industrial separation technologies, visit GN Separation, which offers decanter centrifuges, disc stack separators, and mining screening and dewatering equipment.
Key Project Benefits
The main benefits of this installation include:
High-volume processing: Five large-bowl centrifuges for tailings slurry treatment.
Adaptation to demanding conditions: Equipment configured for the requirements of a high-altitude mining operation.
Flexible process control: Adjustable separation parameters through variable-frequency drives.
Integrated process equipment: A coordinated package of centrifuges, chemical dosing, and screw pumps.
Field-validated performance: Expansion of the project following evaluation of a pilot unit.
Advancing Solid-Liquid Separation for Mining
This project highlights the importance of selecting solid-liquid separation equipment based on flow rate, solids concentration, slurry abrasiveness, site altitude, and treatment objectives.
GN continues to develop industrial separation solutions for mining, environmental treatment, and material-processing applications, with equipment configurations tailored to individual project requirements.
Looking for a Mining Tailings Treatment Solution?
If you are evaluating a decanter centrifuge for mining tailings, sludge dewatering, or process-water recovery, share your required flow rate, slurry characteristics, solids concentration, and site conditions with our team.
GN can assess these parameters and recommend a suitable equipment configuration for your application.