Month: December 2023

The sale of two sets of decanter centrifuges to South American clients marks a significant milestone in the global expansion of our company’s innovative technology. These centrifuges, including the GNLW654 model, are designed to address the unique challenges of sludge dewatering in the South American region. In this article, we will delve into the original mechanical principles and price advantages of these decanter centrifuges, shedding light on their superior performance and cost-effectiveness.

1 GNLW654 Decanter Centrifuge

The GNLW654 decanter centrifuge is a cutting-edge piece of equipment that embodies the latest advancements in centrifugal separation technology. Its unique features and original mechanical principles make it an indispensable tool for various industrial applications, particularly in the area of sludge dewatering. This section will delve into the innovative design and high-performance capabilities of the GNLW654 decanter centrifuge, showcasing its superior functionality and efficiency.

One of the key features of the GNLW654 decanter centrifuge is its robust and durable construction. The centrifuge is built with high-quality materials and precision engineering, ensuring its reliability and longevity in demanding operational environments. The use of stainless steel and other corrosion-resistant alloys enhances the centrifuge’s resistance to harsh chemicals and abrasive materials, making it suitable for a wide range of applications in the wastewater treatment, oil and gas, and mining industries.

In addition to its sturdy construction, the GNLW654 decanter centrifuge is equipped with advanced control systems that optimize its performance and efficiency. The centrifuge’s variable frequency drive (VFD) allows for precise control of the bowl and conveyor speeds, enabling operators to fine-tune the separation process according to specific sludge characteristics. This level of flexibility is crucial in achieving optimal dewatering results and maximizing the recovery of valuable solids from the slurry.

Furthermore, the GNLW654 decanter centrifuge incorporates a streamlined hydraulic system that minimizes energy consumption and reduces maintenance requirements. The use of hydraulic technology enables smooth and continuous operation, eliminating the need for frequent shutdowns and minimizing downtime. This not only enhances the centrifuge’s overall productivity but also contributes to significant cost savings for operators.

The mechanical principles behind the GNLW654 decanter centrifuge are rooted in the concept of differential speed and gravitational force. As the slurry enters the centrifuge, it is subjected to high centrifugal forces, causing the solids to settle against the bowl wall while the liquid phase is expelled through the liquid discharge ports. The rotating conveyor within the bowl then conveys the dewatered solids towards the conical end of the centrifuge, where they are discharged through the solids discharge ports. This continuous separation process relies on the precise control of bowl and conveyor speeds to achieve the desired dryness of the solids and the clarity of the liquid effluent.

In conclusion, the GNLW654 decanter centrifuge stands as a pinnacle of innovation and engineering excellence in the field of centrifugal separation technology. Its unique features, advanced control systems, robust construction, and efficient mechanical principles make it a highly sought-after solution for sludge dewatering and solids-liquid separation. By understanding the intricacies of its design and operation, users can fully harness the capabilities of the GNLW654 decanter centrifuge to meet their specific dewatering requirements with unparalleled performance and reliability.

2  Flocculation and chemical Dosing unit System

The 6000L flocculation and dosing system plays a crucial role in the sludge dewatering process by enhancing the efficiency of separation and dewatering. This system is designed to effectively treat the incoming slurry and facilitate the formation of large, fast-settling flocs. By optimizing the flocculation and dosing process, the system ensures the formation of well-defined flocs that can be easily separated from the liquid phase, leading to improved dewatering performance.

The mechanical principles behind the 6000L flocculation and dosing system are based on the principles of coagulation and flocculation. Coagulation involves the destabilization of colloidal particles to form microflocs, which are then brought together to form larger, more easily settleable flocs through the process of flocculation. The dosing system precisely controls the addition of coagulants and flocculants to the slurry, ensuring the optimal conditions for floc formation.

In practical applications, the 6000L flocculation and dosing system is capable of handling a wide range of slurry compositions and flow rates, making it suitable for diverse sludge dewatering requirements. The system is equipped with advanced mixing and dosing mechanisms to ensure thorough and uniform dispersion of the coagulants and flocculants throughout the slurry. This promotes the efficient formation of flocs and maximizes the separation efficiency of the decanter centrifuge.

Furthermore, the 6000L flocculation and dosing system is designed to be highly adaptable, allowing for precise adjustments to the dosing parameters based on the specific characteristics of the slurry being processed. This adaptability ensures that the system can effectively respond to variations in sludge composition and flow conditions, maintaining consistent dewatering performance across different operating scenarios.

In addition to its role in enhancing dewatering efficiency, the 6000L flocculation and dosing system also contributes to the overall cost-effectiveness of the sludge dewatering process. By promoting the formation of well-defined flocs and improving the separation efficiency of the decanter centrifuge, the system reduces the energy consumption and chemical usage required for dewatering operations. This results in significant cost savings over the long term, making the system a valuable investment for industrial and municipal wastewater treatment facilities.

Overall, the 6000L flocculation and dosing system represents a key component in the comprehensive sludge dewatering solution offered to South American clients. Its innovative design, precise dosing control, and adaptability make it an essential element in achieving optimal dewatering performance while minimizing operational costs.

3 Lifting Platform for Decanter Centrifuges

The lifting platform for decanter centrifuges is a crucial component that contributes to the operational convenience and safety of the entire system. Its design and functionality play a significant role in facilitating the installation, maintenance, and operation of the decanter centrifuges, ultimately enhancing the overall efficiency and effectiveness of the equipment.

The lifting platform is specifically designed to provide a stable and secure base for the decanter centrifuges. Its robust construction and precision engineering ensure that the centrifuges are securely positioned, minimizing the risk of instability or movement during operation. This is particularly important in the context of the GNLW654 decanter centrifuge, which is known for its high-speed rotation and powerful dewatering capabilities. The lifting platform effectively supports the centrifuge’s weight and provides a solid foundation for its operation, thereby enhancing safety and stability.

In addition to providing a stable base, the lifting platform also facilitates the installation and maintenance of the decanter centrifuges. Its design allows for easy access to the centrifuges, making it convenient for technicians to perform routine inspections, repairs, and adjustments. This accessibility is crucial in ensuring the optimal performance of the centrifuges over time. Furthermore, the lifting platform’s design minimizes the need for extensive disassembly or complex maneuvers, simplifying the installation and maintenance process and reducing potential downtime.

Moreover, the lifting platform contributes to the overall ergonomics of the system, enhancing the convenience and safety of operation. By providing a raised platform for the decanter centrifuges, it allows operators and technicians to access the equipment at a comfortable height, reducing the risk of strain or injury during routine tasks. This ergonomic design consideration aligns with the emphasis on safety and efficiency in the design of the entire decanter centrifuge system, ensuring that operational tasks can be performed with ease and minimal risk to personnel.

Furthermore, the lifting platform’s design is tailored to the specific requirements of the decanter centrifuges, ensuring compatibility and seamless integration with the equipment. Its dimensions and structural features are carefully engineered to accommodate the size, weight, and configuration of the centrifuges, maximizing the effectiveness of the support provided. This tailored design approach reflects a commitment to optimizing the functionality and performance of the decanter centrifuge system as a whole, highlighting the attention to detail and precision engineering that characterizes the equipment.

In conclusion, the original mechanical principles and price advantages of the two sets of decanter centrifuges offer valuable insights into the innovative technology and cost-effectiveness of our products. By understanding the unique features of the GNLW654 decanter centrifuge, the mechanical principles of the flocculation and dosing system, the lifting platform, the sludge tank, and the supply screw pump, South American clients can make informed decisions that align with their specific sludge dewatering requirements. This article serves as a comprehensive resource for industry professionals and stakeholders seeking advanced solutions for sludge dewatering.

Recently two sets of big bowl mud dewatering centrifuge unit are ready for shipment to South America. Each set mud dewatering centrifuge unit including the major equipments as below:

1. Big bowl mud dewatering decanter centrifuge GNLW654, bowl diameter is 650mm (25.6 inch), the bowl length is 2730mm (82 inch), bowl length/ bowl diameter ratio is 4.2, the bowl speed is 2900rpm, max G force is up to 3058G, the main motor is 90KW, the back drive motor is 18.5KW, the drive system is positive pressurized VFD control panel with PLC smart control , HIMI interface, the bow material is duplex stainless steel SS2205 from centrifugal casting, the screw material is duplex stainless steel SS2205 or SS316L.

2. 6000L chemical dosing unit, the chemical dosing unit is an automatic chemical dosing unit used in the preparation, storage and dosing of the powder chemicals, which with function of automatic preparation, dissolving and dosing. It can be used in waste water sewage treatment and other treatment of petroleum, chemical, paper, electric power, coal, pharmaceutical and food industries. The chemical dosing unit consists of dissolving tank ( stainless steel SS304 or polyurethane material for option), agitator, dosing pump (mechanical diaphragm pump， one duty one standby), dosing screw (reduce the agglomeration of powder), electric control panel

3. Decanter centrifuge telescopic skid, the decanter centrifuge is a two phase separation big bowl decanter centrifuge, which is installed on top of the telescopic skid, the VFD control panel and feeding pump is installed on the skid for convenient operation and movement.
4. 20ft mud tank , the 20ft container size mud tank is used as storage tank of the fluids after treatment.
5. Feeding pump of the decanter centrifuge
For more information of the big bowl mud dewatering centrifuge unit , pls contact with GN solids control.

Recently one batch of mud cleaner, decanter centrifuge and vacuum degasser are ready for shipment to Shandong Client, the solids control equipments will be used for oil drilling rig solids control system.

Mud cleaner, with 2ea of 10 inch desander cone and 12 ea of 4 inch desilter cone and bottom flow shale shaker GNZS594J-SHBJ, it is used after primary solids control shale shaker, 2 units of centrifugal pump as feeding pump of desander cone and desilter cone. The drilling fluids after treated by desilter cone dropped into the mud tank, the decanter centrifuge feeding pump
Decanter centrifuge as the fourth phase separation solids control equipment, high speed decanter centrifuge with max speed up to 3900rpm, the normal operation speed is 3200rpm, the separation cut point is 2~5 microns.

The vacuum degasser is installed before the mud cleaner, to separate the gas from the gas-cut mud and prevent the centrifugal pump from damaged by the gas.
It utilizes the suction of the vacuum pump to generate a negative pressure inside the vacuum tank. Under the action of atmospheric pressure, the drilling fluids enters the hollow shaft of the rotor through the suction pipe, and then sprays towards the tank wall through the windows around the hollow shaft. Due to the collision and separation wheel, the drilling fluid forms a thin layer, causing the bubbles immersed in the mud to break and the gas to escape, and mud is discharged from the mud outlet through centrifugal force generated by the rotation of the impeller driven by the main motor.

Except for mud cleaner, decanter centrifuge and vacuum degasser, GN solids control also produce shale shaker, shaker screens, centrifugal pump, centrifugal degasser, mud agitator, mud gun, mixing hopper, mud gas separator, mud tank, vertical cuttings dryer, screw conveyor, screw pump, etc. solids control equipments.

Recently one batch of mud gas separator and mud guns are ready for delivery to Middle East client.

The mud gun and mud agitator are used in combination to prevent solid sedimentation of drilling mud, or to transfer mud; The quantity of mud guns depends on the size of the mud tank and is usually installed on the mud pipeline of the mud tank;
The pressurized mud flows into the mud gun through an external mud line ( customized configuration). By using the three nozzles at the bottom of the mud gun (designed at a 120 ° angle), the internal mud is sprayed out to achieve the purpose of transfering mud or cleaning the mud tank.
According to the structural characteristics, there are 2 types mud guns for mud tank system, one is fixed type with rotation angle 0º, one is rotary type with rotation angle 360º. According to the size of the gun inlet, it is divided into 2 inch mud gun and 3 inch mud guns. The three nozzles are designed with a 120 ° angle, allowing even a fixed mud gun to radiate the mud tank in all directions. For a rotating mud gun, it can radiate the mud tank without blind spots. The rotary mud gun adopts a foldable handle design, which is convenient and safe, optional gate valve, butterfly valve, or ball valve .The nozzle is made of polyurethane material, with a lifespan of up to 2000 hours.

The mud gun is consist of rotor, nipple, elbow pile clamp, gun body, nozzle four way, nozzle, handle assembly, fastener, stabilizer. The mud gun length is according to mud tank inner dimension, which will be confirmed by GN solids sales.
For more information of mud gun, mud agitator and mud gas separator, pls contact with GN solids sales.

Recently one set of drilling waste management packaged equipments are shipped to Europe client. The package is a customized drilling waste management system including drilling cuttings feeding modular, high G drying shaker treatment modular, drilling cuttings vertical cuttings dryer modular and screw conveyor transfer modular.

The drilling cuttings feeding modular including the cuttings collection hopper to collect the drilling cuttings from solids control system primary shale shaker and drop into the oblique installed screw conveyor feeding port, then the drilling cuttings will be transferred automatically to high G drying shaker separation modular.
The high G force drying shaker is utilized to separate the water based drilling cuttings and reduce the solids content, to get drier drilling cuttings. It can be also used before vertical cuttings dryer, to reduce the solids content and reach better treatment result of the vertical G dryer.

The vertical G dryer modular is mostly used to treat the oil based drilling cuttings, the treatment result will depend on the material conditions, which is installed on the telescopic skid with flushing pump and VFD control panel which is cooled by condensing tube. The discharged cuttings with oil on the cuttings less than 5% which can be used for land fill or send to thermal desorption unit for further treatment until the oil content below to 1%. The VFD control panel is a positive pressurized VFD control panel with PLC smart control and touch screen, the inverter and other electric components are all from world famous brand for reliable operation.

The screw conveyor is used to transfer the discharged cuttings to skips or other place automatically as per client’s requirement.
All of the 4 modular package equipments with electric motor and control panel which are comply with ATEX explosion proof to meet Europe explosion proof standard and safety standard.