Category: Decanter Centrifuge

How to choose the flush pump for decanter centrifuge?

When it comes to choosing a flush pump for a decanter centrifuge, numerous users often have the same question: Can the existing sludge feeding pump double as a flushing pump? Specifically, many consider the idea of adding a water line to the suction area of the current feed pump for this purpose. The proposed process entails closing the sludge valve and opening the water valve to initiate the flushing action. Nevertheless, grasping the correct configuration is crucial to guarantee top-notch performance.

GN Solids Control suggests employing the centrifuge’s feeding screw pump as the flush pump. This recommendation offers both economic advantages and operational efficiency. To put it into practice, a T-piece needs to be inserted into the suction pipe of the feeding pump and then connected to a dedicated water line. Through separate valves, operators can control the water line and the slurry feeding pipe independently, enabling seamless transitions between the feeding and flushing modes.

By leveraging the feeding screw pump for flushing, operators can enjoy dual functionality, eliminating the necessity for an additional, stand-alone flush pump. This setup streamlines the overall system and brings an extra perk: the water line can effectively flush and cleanse the settled solids within both the screw pump and the feeding pipelines. As a result, the entire system stays clean, averting blockages and ensuring the decanter centrifuge operates continuously and efficiently.

In general, if the aforementioned setup is properly implemented, a separate flushing pump usually isn’t required. However, in cases where unique operational circumstances demand more flushing power or a particular pump configuration, considering a separate flushing pump could be a viable option, like screw pump, centrigugal pump, surry pump, etc…

To sum it up, GN Solids Control’s recommended practice of using the feeding screw pump for flushing represents an effective solution. It boosts system efficiency, cuts down on equipment requirements, and keeps the centrifuge in prime working condition. This approach mirrors GN Solids Control’s dedication to supplying high-quality, cost-effective solutions for solids control and waste management across diverse industries.

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.

Deep-well drilling rig solid control system of the for coalfield geology to China Drilling company

GN Solids Control has made a specialized solid control system for a deep-well drilling rig tailored to the coalfield geology operations for the China Drilling Company. This system is designed to efficiently manage and recycle drilling mud, ensuring optimal performance and cost-effective operations.

The solid control system consists of several key components. It includes four (4) mud tanks that are used for the storage and separation of drilling fluids. Two (2) GNZS594 shale shakers are integrated into the system to remove large solids from the mud. The system also features one (1) mud cleaner, which further refines the drilling fluid by removing finer solids that are not captured by the shakers.

For more advanced separation, the drilling mud recycling system is equipped with a GNLW452 decanter centrifuge. It is a 18-inch big bowl decanter centrifuge operates at a medium speed and is specifically designed for high-gravity separation, effectively removing fine particles and enhancing the quality of the recycled mud.

In addition to the separation equipment, the system is integrated with a complete mixing system. This includes one (1) centrifugal mixing pump, one (1) mixing hopper, and necessary mud agitators, which work together to ensure consistent mixing and proper circulation of the drilling mud throughout the drilling operation. The mixing system plays a crucial role in maintaining the proper viscosity and flow properties of the drilling mud, ensuring efficient drilling and preventing issues such as wellbore instability.

The entire system is controlled by an advanced electrical control system, providing a turnkey solution for the Drilling Company in China. This electrical control system ensures seamless operation of all equipment and components, allowing for real-time monitoring and precise control over the solid control and mud mixing process. The complete system is designed to improve efficiency, reduce downtime, and enhance the overall success of coalfield geology drilling operations.

Drilling Mud dewatering centrifuge Unit for Europe Client

In today’s world of continuous industrial development, efficient drilling mud treatment equipment is essential for oil and gas drilling and engineering construction industry. Recently, GN Solids Control successfully sold two sets of drilling mud dewatering centrifuge systems to European customers.

The core equipment of these two sets of drilling mud dewatering system is the GNLW364FT decanter centrifuge, which can quickly and effectively separate solids and liquids in mud with its efficient centrifugal separation technology and high-quality materials. In practical applications, the stability and reliability of the decanter centrifuge have been fully verified, providing strong support for customers’ mud treatment work.

In addition to the decanter centrifuge, each set of equipment is also equipped with a chemical dosing system. It can accurately add chemical agents according to the characteristics of the mud, thereby improving the dewatering performance of the mud. Through reasonable chemical agent addition, the separation efficiency of the centrifuge can be improved, the processing cost can be reduced, and the impact on the environment can also be reduced.

The slurry supply screw pump is also an important part of each set of equipment. It can stably transport the mud to the decanter centrifuge to ensure the smooth progress of the entire treatment process. The apply of the screw pump takes into account the characteristics of the mud. It has the characteristics of wear resistance and corrosion resistance, and can operate stably for a long time in harsh working environments.

For easy transportation and installation, each set of drilling mud dewatering centrifuge system is placed in two containers. This design not only facilitates logistics transportation, but also allows for quick assembly and commissioning on site. The use of containers not only improves the transportation efficiency of the equipment, but also reduces transportation costs, providing customers with a more convenient solution.

The two sets of drilling mud dewatering centrifuge systems successfully sold to European customers this time fully demonstrate our company’s professional strength and technical level in the field of mud treatment. Our team has made great efforts in all aspects of R&D, production, sales and after-sales service to ensure that customers can get the best quality products and services.

3 Sets GNLW654-VFD Dewatering Centrifuge Package for North Africa Municipal Sludge Dewatering

In the field of municipal sewage treatment, efficient equipment and advanced technical solutions are essential. Recently, GN Solids Control’s three GNLW654-VFD sludge dewatering  centrifuge units were successfully applied to municipal sewage treatment projects in North African.

1. GNLW654-VFD dewatering  centrifuge: a sewage treatment solution with excellent performance

These three GNLW654-VFD dewatering centrifuges played a core role in the project. They adopt advanced design and manufacturing processes and have excellent dewatering performance. The GNLW654-VFD decanter centrifuge can quickly and effectively separate the water from the sludge, greatly reducing the water content of the sludge, and providing convenience for subsequent treatment and disposal.

The centrifuge is equipped with temperature and vibration sensors to monitor the operating status of the equipment in real time. The temperature sensor can detect whether the equipment is overheating in time to avoid damage to the equipment due to high temperature. The vibration sensor can detect the vibration of the equipment. Once abnormal vibration occurs, timely measures can be taken to adjust it to ensure the stable operation of the equipment. This intelligent monitoring system improves the reliability and safety of the equipment and reduces the probability of equipment failure.

In addition, the GNLW654-VFD dewatering centrifuge is also equipped with four variable frequency control cabinets, which control the main motor, auxiliary motor, slurry supply pump and dosing metering pump respectively. The variable frequency control technology can flexibly adjust the operating parameters of the equipment according to actual needs to achieve the purpose of energy saving and consumption reduction. At the same time, it can also improve the operating accuracy and stability of the equipment to ensure the stability and reliability of the sewage treatment effect.

2. 6500L flocculation dosing device: Provide strong support for sewage treatment

In this project, 1 set of 6500L flocculation dosing device is also equipped for the centrifuge dewatering treatment. The device comes with a screw dosing metering pump, which can accurately control the amount of flocculant added and improve the effect of sewage treatment.

The flocculation dosing device plays a key role in the sewage treatment process. It adds flocculants to make the tiny particles in the sludge condense into larger particles, which is convenient for the centrifuge to dewater. The 6500L large-capacity design can meet the large-scale sewage treatment needs of the project, while the screw dosing metering pump has the characteristics of accurate metering and stable operation, ensuring that the amount of flocculant added is always kept at the best state.

GN Solids Control has been committed to providing high-quality solid control equipment and sewage treatment solutions to customers around the world. The successful application in the municipal sewage treatment project in North African countries once again proves the technical strength and product quality of GN Solids Control.