Category: Drilling Waste Management

GNLW364 Sludge Dewatering Centrifuge for Overseas Environmental Company 

The GNLW364 is a 14-inch bowl high-speed decanter centrifuge engineered for wastewater treatment, designed to handle both oily and oil-free effluents. Built on a robust standard design, the GNLW364 can be modified and customized to meet the unique requirements of different projects. In this particular case, it was tailored for an overseas environmental company, with adjustments made to suit the client’s site-specific conditions and processing goals.

To ensure each solution is fit-for-purpose, GN Solids Control sales engineers begin the process by issuing detailed technical questionnaires. These help gather all necessary project parameters and operational conditions. Based on this information, GN’s centrifuge engineering team proposes optimized specifications to deliver efficient and reliable separation performance.

Technical Features

Bowl Geometry: The GNLW364 features a bowl with a 4:1 diameter-to-length ratio, which is considered ideal for wastewater and dewatering applications. This larger ratio increases sedimentation efficiency, supporting higher throughput and improved separation.

Centrifuge Speed Control: Variable speed control is essential for wastewater treatment due to fluctuating feed characteristics. The GNLW364 is equipped with a VFD (Variable Frequency Drive) control panel that enables precise, real-time adjustment of both the bowl and conveyor speeds to maintain consistent performance across different feed conditions.

Safety System: The unit includes a full suite of integrated safety features, such as temperature and vibration sensors. These protect both the machine and operators, allowing for safe and continuous operation.

Application Scope

This particular project utilizes the GNLW364 for 2-phase separation. However, GN Solids Control also offers 3-phase decanter centrifuges to handle more complex separation tasks involving oil, water, and solids. Available in multiple bowl sizes, these systems are used widely in industries such as petroleum refining, chemical processing, food production, and environmental engineering.

The flexibility and engineering precision of the GNLW364 make it a versatile and reliable solution for demanding separation applications in diverse global markets.

Manual adjustable screw conveyor VS VFD control screw conveyor

A screw conveyor, also known as an auger, is a widely used equipment for transferring drilling cuttings from shale shakers, mud cleaners (desanders and desilters), decanter centrifuges, and carrying these cuttings for feeding to drilling waste management equipment, like to high G drying shale shaker, vertical cuttings dryer, filter press, etc…. It is also widely used to discharge solids from High G dryering shaker, the decanter centrifuge, etc… It is an essential part of solids control systems, efficiently moving waste material to designated disposal areas.

When it comes to operating a screw conveyor, users often have questions regarding the functionality of the manual variable speed feature. Weather they should choose the manual variable speed reducer screw conveyor, or the screw conveyor equipped with a VFD control panel? Whether the manual variable speed unit can be removed and the motor connected directly to the gearbox to convert it into a fixed-speed screw conveyor if the variable speed unit malfunctions.

Technically speaking, if the manual gearbox fails, it is not advisable to simply connect the motor directly to the gearbox. The gearbox is designed to operate with a manual variable speed adjustment, and removing this feature would compromise the system’s functionality. In this case, it would be necessary to replace the broken gearbox with a new one to maintain proper operation.

If you need to adjust the speed frequently, the better solution is to consider using a Variable Frequency Drive (VFD) control panel. A VFD provides a more flexible and efficient way to control the speed of the motor. It allows for on-demand speed adjustments without the need for manual changes, making it particularly useful in situations where the speed needs to be altered regularly. For example, if your operations require speed adjustments on a daily basis or at different drilling rigs, a VFD system would be much more convenient and effective.

However, if your operations involve fewer require speed adjustments on a daily basis or at different drilling rigs, a VFD system would be much more convenient and effective.

However, if your operations involve fewer speed changes and the equipment is mainly used in a fixed-speed setup for extended periods, a manual variable speed gearbox might still be suitable. The lifetime of both manual adjustment and standard gearboxes is quite long, especially if the speed adjustment does not need to be changed frequently. For rigs that move between locations and require minimal speed changes, the manual gearbox remains a reliable and durable option.

In summary, if you frequently need to adjust the speed of your screw conveyor, a VFD control system is the best choice. However, if the speed adjustment is minimal and you’re comfortable with a fixed speed, replacing the manual gearbox with a new unit will restore the system to its original functionality.

GN Engineering Mud Dewatering Centrifuge for Overseas Customer

GN Solids Control offers highly versatile dewatering decanter centrifuges, which are essential for wastewater treatment across various industries, including oil rigs, trenchless construction, and industrial applications.

These centrifuges are designed with multiple drum size options, ranging from 9-inch to 30-inch, catering to a wide range of project requirements. The length of the centrifuge bowl and the specific design are customized based on the characteristics of the materials being processed and the unique operational needs of each project.

To ensure optimal performance, GN Solids Control’s engineers thoroughly assess project details by sending out questionnaires to clients. This allows them to understand the specific needs and conditions of the project, enabling the provision of tailored recommendations for centrifuge model selection. Whether the project involves oilfield waste treatment, trenchless technology applications, or industrial wastewater, GN Solids Control ensures the right centrifuge is chosen for maximum efficiency and performance.

In addition to the decanter centrifuges, GN Solids Control also provides chemical dosing units to complement the dewatering process. One of the key offerings is the three-tank automatic dosing system. This system is equipped with high-quality stainless-steel tanks and a fully automated electrical control system. It is designed for the automatic mixing and dosing of chemicals, making it ideal for powdered chemicals. The fully automated system ensures consistent and accurate dosing, which is essential for achieving optimal dewatering results.

For applications that require the dosing of liquid chemicals, GN Solids Control also offers a PE bucket manual dosing system. This system is particularly suited for projects where manual control is preferred, providing flexibility in chemical dosing for a variety of operational scenarios.

By providing both automatic and manual dosing options, along with customizable centrifuge solutions, GN Solids Control ensures that clients receive the most effective equipment for their specific wastewater treatment needs. The company’s focus on tailored solutions and high-quality equipment makes it a trusted partner in industries requiring advanced dewatering and waste management technologies.

GN Oil Sludge Treatment Centrifuge Unit for South America Client

GN Solids Control has recently developed a compact design oily slurry separation system for a project in South America. This system is specifically designed to offer easy movement and efficient layout, with separate skids for each modular component. The system consists of three primary modules, each tailored to meet the specific needs of the project:

Oily Slurry Transfer Module: This module handles the transfer of oily slurry, ensuring the smooth and efficient transportation of materials to the next stages of treatment.

Tank Cleaning Waste Water Treatment System: This module is a combination of a chemical dosing system, a separation system, and an inclined clarifier separation system. It is designed to treat waste water generated from tank cleaning operations by effectively separating contaminants and ensuring that the water can be safely disposed of or reused.

3-Phase Decanter Centrifuge System: This module features a decanter centrifuge system with a mud tank, screw feeding pump, and all necessary connection pipelines. The 3-phase decanter centrifuge efficiently separates the waste slurry into three phases: solids, liquids, and oil, making it ideal for drilling waste management and oily waste treatment.

The compact design of this oily slurry separation system allows for easy transportation and installation, making it a practical solution for projects in remote or space-constrained areas. The separate skids ensure flexibility in layout and ease of maintenance, while the modular design allows for the system to be customized according to the specific needs of each project.

GN Solids Control is a leading manufacturer of full-package drilling mud solids control equipment, drilling waste management equipment, and wastewater treatment systems. The company is committed to providing innovative, high-quality solutions for the oil and gas industry, ensuring operational efficiency and minimizing environmental impact. With a focus on customer satisfaction, GN Solids Control continues to be a trusted partner for businesses around the world.

2-phase and 3-phase centrifuge for oil sludge separation

The final step in the oily sludge separation process involves a crucial three-phase separation to oil, water and solids, and there are two primary options available for achieving optimal results, as recommended from the Separation specialist – GN Solids Control.

Option 1: GN Solids Control Two-Phase Decanter Centrifuge + Three-Phase Disc Centrifuge

This option employs a combination of two-phase decanter centrifuge followed by a three-phase disc centrifuge for fine separation. The decanter centrifuge is initially used to separate the bulk solids and liquids, while the disc centrifuge performs the critical three-phase separation, separating oil, water, and solids with high efficiency.

The disc centrifuge offers a significant advantage by achieving cleaner outputs for both oil and water. It is particularly effective in reducing the Base Sediment & Water (BS&W) content in the oil. BS&W is a key parameter in defining the quality of the oil, and the lower the BS&W, the higher the oil quality. With the disc centrifuge, the output oil typically has a BS&W of 2-3%, ensuring higher purity and quality.

The water output from the disc centrifuge ranges from 1000 to 3000 RPM, depending on the specific settings and operational conditions, ensuring that the water is effectively separated from the oil. Additionally, the solids content in the output oil from the disc centrifuge is typically between 1-3%, maintaining the quality and clarity of the oil while efficiently removing contaminants.

Option 2: Three-Phase Decanter Centrifuge

The second option utilizes a single three-phase decanter centrifuge for all three-phase separation. This centrifuge directly separates the oil, water, and solids in one step. It is a simpler, more compact solution, which may be ideal for certain operational setups where space or equipment complexity is a concern.

The three-phase decanter centrifuge is effective in producing the three separate outputs—oil, water, and solids—though the quality of separation may not be as refined as with the combination of a decanter centrifuge and disc centrifuge. This option is suitable for applications where a balance of performance and operational simplicity is desired, but it may not achieve the same level of oil purity as the multi-stage separation process.

Each option offers distinct advantages, and the choice between them depends on factors such as the desired oil quality, operational conditions, and system requirements. Operators can contact GN Solids Control engieers to ask for more suitable solution.

One Batch of Screw Conveyors nearly Complete Assembling

GN Solids Control is close to finalizing the assembly of a new batch of screw conveyors. The screw conveyors are designed to significantly improve the efficiency of drilling operations. These screw conveyors are essential for the collection and transfer of drilling cuttings generated in oil and gas drilling field. It is a critical process in the oil and gas drilling mud systems.

Engineered for versatility, these screw conveyors are intended to work seamlessly with drilling mud shale shakers and mud cleaners. By efficiently moving drilling cuttings, they help maintain the optimal performance of these crucial pieces of equipment, ensuring that the drilling process runs smoothly and without interruption.

 

Beyond their primary function, these screw conveyors are also capable of serving as discharge augers for the decanter centrifuge and the vertical cuttings dryer. Decanter centrifuges are essential for separating solids from drilling fluids, while vertical cuttings dryers reduce the oil content in drilling cuttings. It can reduce the Oil on cuttings (OOC) to 3% ~ 5%. When used as discharge augers, the screw conveyors ensure that processed materials are transferred efficiently, supporting an effective waste management system.

Constructed with high-quality materials, these screw conveyors are built to withstand the harsh conditions of drilling environments. Their robust design ensures reliable performance with minimal maintenance, reducing operational downtime—a crucial aspect in managing the costs of drilling projects.

The top covers of the screw conveyor can be gratings and metal plate. There are hinges on one side of the auger frame, which is used for locks / bolts on the other side.

There are grab line and pull cord switch connected to the grab cable looping on top of the auger covers for automatic power trip when the top cover is opened up from closed position.

As the assembly of this batch of screw conveyors reaches its final stages, GN Solids Control reinforces its dedication to delivering advanced solutions that meet the evolving needs of the drilling industry. These screw conveyors are poised to play a key role in enhancing the efficiency, environmental responsibility, and overall productivity of drilling operations.