Slurry Separation Plant | Drilling mud Equipment

How to choose the right model Decanter centrifuge for waste water treatment and oil sludge separation

BY admin 23 September 2023 Decanter Centrifuge, dewatering unit, Drilling Waste Management, Slurry separation plant

In the selection process for centrifuge models used in wastewater treatment and oil sludge processing through three-phase separation, the test tube centrifuge method plays a crucial role. This method involves a specific procedure to determine the most suitable decanter centrifuge model. The customer is instructed to set the separation factor to 1200G for a duration of 2 minutes. If clear layering occurs during this process, it indicates that the centrifuge possesses excellent separation capability. However, if clear layering is not observed at 1200G, the setting is increased to 2000G for an additional 2 minutes. If clear layering is achieved at this stage, it suggests that a high-speed decanter centrifuge can also achieve effective separation.

The test tube centrifuge method provides a preliminary assessment of the centrifuge’s separation capabilities, making it an essential step in the selection process. By gradually increasing the separation factor and observing the clarity of the layers formed, it becomes possible to determine the optimal centrifuge model for wastewater treatment and oil sludge processing.

Clear layering serves as a critical indicator of a centrifuge’s ability to effectively separate the different phases present in wastewater and oil sludge. The presence of clear layering indicates successful separation of solid particles from the liquid phase, resulting in distinct layers. This separation is vital for efficient treatment and processing, allowing for the removal of contaminants and the recovery of valuable resources.

However, if the centrifuge fails to achieve clear layering even at higher separation factors like 2500G or 3000G, it suggests that the separation efficiency may be compromised. In such cases, alternative separation methods beyond centrifugation need to be considered.

In conclusion, the test tube centrifuge method is a crucial tool in the selection of centrifuge models for wastewater treatment and oil sludge processing. By gradually increasing the separation factor and observing the clarity of the layers formed, the centrifuge’s separation capabilities can be determined. Clear layering indicates effective separation, while the absence of clear layering suggests the need for alternative separation methods. This careful selection process ensures the optimal choice of centrifuge models for efficient wastewater treatment and oil sludge processing.

GN Big Bowl Decanter Centrifuge for mining slurry dewatering treatment

BY admin 18 August 2023 Decanter Centrifuge, dewatering unit, Drilling Waste Management, Mining Equipment, Slurry separation plant, ultra fine solids separation

Renowned for its expertise in the realm of decanter centrifuges and disc centrifuges, GN Solids Control boasts an extensive array of offerings. These encompass a wide spectrum of sizes and models, meticulously designed to cater to the intricacies of both 2-phase and 3-phase separation processes.

Setting them apart from the competition is a truly remarkable accomplishment—the engineering marvel that is the 30-inch big bowl decanter centrifuge. This monumental achievement places GN Solids Control among a select few global manufacturers possessing the prowess to conceive such an innovation. Dubbed the GNLW764A-VFD, this colossal apparatus assumes a pivotal role in the mining sector, specifically for the treatment of tailing slurry, a process vital for efficient dewatering.

The immense bowl of the centrifuge is meticulously crafted to accommodate substantial capacities, making it tailored for scenarios requiring large-scale operations. This innovation not only showcases GN Solids Control’s technical prowess but also its commitment to addressing the evolving demands of diverse industries.

The pinnacle of their ingenuity lies in their containerized water treatment system. Within this innovation, two distinct containerized systems harmonize seamlessly. The upper container houses the centrifuge, an indispensable cog in the separation process machinery, ensuring precision and efficiency. Contrarily, the lower container hosts the chemical dosing unit, playing a pivotal role in fine-tuning the treatment process for optimal results.

The ingenuity doesn’t stop at physical arrangement—the interconnectivity of these systems is facilitated through an intricate web of pipelines. GN Solids Control orchestrates a symphony of fluid dynamics, achieving not only a fluid flow but also a flow of information through their comprehensive control systems.

This holistic approach signifies GN Solids Control’s commitment to furnishing comprehensive solutions for intricate industrial challenges. Their prowess extends beyond equipment production; it lies in their capability to create cohesive systems that enhance efficiency while optimizing spatial resources. By adeptly intertwining the centrifuge and chemical dosing unit within a dual-container setup, GN Solids Control continues to illuminate the path for cutting-edge water treatment solutions, effectively setting new benchmarks within the industry.

GN Solids Australia Pty Ltd established in Brisbane Australia

BY admin 13 August 2023 dewatering unit, Slurry separation plant, solids control

GN Solids Control has further expanded its international reach with the establishment of GN Solids Australia, following the successful ventures of GN Solids Russia and GN Solids America. Specializing in solids control equipment and mining slurry separation, GN Solids Australia offers a comprehensive range of products, including centrifuge equipment and mining vibrating screen separators of various sizes.

One of the standout offerings from GN Solids Australia is their advanced vibrating screen separators, specifically designed for ore beneficiation and mineral processing applications. These vibrating screens come in a diverse range of models, such as the Dewatering Vibrating Screen-Linear Motion, Classification Vibrating Screen-Linear Motion, Stack Vibrating Screen-Fine Sizer, High Frequency Vibrating Screen, Large Linear Vibrating Screen, Large Banana Vibrating Screen, and Flip-Flow Vibrating Screen.

The Dewatering Vibrating Screen-Linear Motion is engineered to efficiently remove moisture from processed materials, ensuring optimal dryness and improved handling. The Classification Vibrating Screen-Linear Motion enables precise particle classification based on size, facilitating efficient separation and enhancing overall productivity. The Stack Vibrating Screen-Fine Sizer delivers exceptional screening performance, particularly for fine particles, allowing for precise particle size control in mining operations.

Additionally, GN Solids Australia offers the High Frequency Vibrating Screen, which excels in separating materials with high moisture content or high viscosity. This vibrating screen ensures efficient screening and dewatering of challenging materials, contributing to enhanced process efficiency. The Large Linear Vibrating Screen and Large Banana Vibrating Screen are designed to handle high-capacity operations, providing reliable performance and exceptional throughput in demanding mining environments. Lastly, the Flip-Flow Vibrating Screen offers superior screening efficiency and reduced blinding, making it ideal for processing materials with high moisture and difficult-to-screen characteristics.

With the introduction of GN Solids Australia, customers in the region now have access to a comprehensive range of state-of-the-art solids control equipment and mining slurry separation solutions. GN Solids Australia’s commitment to delivering high-quality products, coupled with their deep expertise in the mining industry, positions them as a trusted partner for mining companies in need of reliable and efficient equipment.

To learn more about GN Solids Australia and explore their extensive product offerings, interested individuals can visit the official website at https://www.gnsolidsaustralia.com/. This expansion solidifies GN Solids Control’s global presence and underscores their dedication to providing innovative solutions for solids control and slurry separation in the mining sector.

Sludge vacuum pump and mini size decanter centrifuge for oil tank cleaning slurry treatment

BY admin 9 April 2022 Decanter Centrifuge, Drilling equipments Company, Drilling Waste Management, Slurry separation plant

Recently, GN Solid Control has successfully finished a set of mini size sludge vacuum pump and mini size decanter centrifuge, they will be exported for a foreign customer. They will be used for a tank cleaning project.

The solids and sludge vacuum pump is a mini size with portable design, the model code is GNSP-10. The mini size vacuum pump is equipped with tires for easy movement. It will be used to transfer the waste slurry which is generated from tank cleaning works. And the decanter centrifuge model code is GNLW224. It is a 9 inch mini size bowl centrifuge with high speed for solid and liquid separation. GN Solids Control sludge vacuum pump and decanter centrifuge are widely used in China and outside China at various job sites. Clients are very happy with their performance.

GN Solids Control makes various sizes sludge vacuum pump for solids, sludge, powder or liquid transfer. It is a kind of vacuum pump that forms a vacuum in the tank through pneumatic, then sucks the materials, and then inflates the tank into positive pressure to discharge the materials from the tank. Because its working principle is pneumatic and no power supply is required, GN Solids Control vacuum pump can be used in explosion-proof areas and hazardous areas.

Due to the unique venturi device of GN Solids Control solid vacuum pump, it can produce a vacuum effect of 25 inches Hg (mercury column) under the condition of strong air flow, empty the air in the tank and then suck the materials, so there are almost no wear parts. It is suitable for the transportation of high-density materials and materials with solid content exceeding 80%, and its stable performance enables it to operate in the most difficult environment.

GN Solids Control 9 inch decanter centrifuge is a small bowl centrifuge, which are mainly used under the working conditions of small treatment or limited site, and are also ideal equipment for centrifuge experimental test. The mini side centrifuge is mainly used to treat the oily sludge extracted from the oil tank by the vacuum pump for solid-liquid separation. According to different customer needs, our company can also provide customers with three different control modes; Constant speed control, frequency conversion control and full hydraulic control. In addition to centrifuges, our company can also provide customers with professional chemical dosing devices, which can be used with centrifuges to obtain better solid-liquid separation effect.

Large Mud Decanter Centrifuge System for TBM engineering company

BY admin 23 August 2021 mud recycling, No Dig Mud System, Slurry separation plant

Last week, GN Solids Control finished a mud decanter centrifuge dewatering system for a TBM engineering company in China. The decanter centrifuge dewatering unit will be used to treat waste slurry from TBM drilling.

big bowl decanter centrifuge

The decanter centrifuge used in the dewatering system is a special model with very huge bowl: GNLW764A-VFD. The bowl size of the centrifuge is 760mm (30 inch) . The bowl length is up to 3328mm. It is a high speed 2-phase decanter centrifuge for liquid and solids separation. The cut point of the centrifuge is 2 ~ 5 microns. It is a dual motor centrifuge. The main drive motor used in the decanter centrifuge is 160Kw, and back drive motor is 90kw.

The chemical dosing unit used in the centrifuge dewatering unit is a very big size GNDW-6000L. The chemical dosing capacity of the unit is 6000L per hour in order to suit the big bowl centrifuge handling capacity.

The GNLW764A-VFD 30 inch big bowl decanter centrifuge is fixed inside a 40ft container, there are windows and door with access to discharge soil by screw conveyors.The GNDW-6000L chemical dosing unit is fixing on another 40ft container and lies on the top of the centrifuge container. It can minimum the footprint to save space.

Dewatering Centrifuge for Southeast Asia Municipal Sewage Treatment Company

BY admin 25 January 2021 Slurry separation plant

GN Solids Control makes various separation productions for the treatment of oil contaminated waste during drilling, like oil sludge and contaminated soil. GN Solids Control is also capable to make various sizes of dewatering centrifuges for oily sludge and industry waste water treatment.

A dewatering centrifuge unit will be delivered to a Southeast Asia client for Municipal Sewage treatment. The dewatering centrifuge package is including a high speed decanter centrifuge unit and a VFD control panel for the centrifuge.

The dewatering decanter centrifuge is with big bowl and high speed, high G force. It is special designed to suit for municipal sewage treatment. The bowl diamater of the dewatering centrifuge is up to 450mm (18 inch), and the bowl length is up to 1890mm (74.5 inch). The bowl length and bowl diameter ratio is up to 4.2 to clarify the liquid and further drying the solids phase. The max. Speed of the 18 inch dewatering centrifuge is 4000RPM, which can generate max. G force 4032G.

The 18 inch dewatering centrifuge is a dual motor unit. According to different material situation, clients have 2 options on the motors power. In condition of heavy mud and high viscosity, 45kw main motor drive and 11kw back motor drive will be used. But if the slurry is low viscosity and light weight, less solids content, clients can choose 37kw main motor drive and 7.5kw back motor drive. It saves cost and also save power. Like for municipal sewage treatment, mostly the liquid is not weight, and less viscosity, 37kw main motor drive and 7.5kw back motor drive can be used.

For the same bowl size 18inch decanter centrifuge, GN Solids Control has different design to cater for the slurry situation. Before order, GN centrifuge engineer will communicate more about the raw material situation and clients’ request in order to offer the clients a most suitable proposal.

VFD Control Panel of the decanter centrifuge is made from stainless steel for excellent corrosion resistance and long service life. The VFD control panel is with PLC and touch screen for smart control.

Centrifugal pump for drilling mud solids control system

BY admin 28 December 2020 Drilling equipments Company, Slurry separation plant, Solids Control Equipments

GNSB Series Centrifugal pump is a very common device used at drilling mud solids control system. GNSB Series Centrifugal pump can be used for oil field drilling mud system, HDD and CBM drilling mud recycling system, piling and micro tunneling desanding plant. GN Solids Control is a professional manufacturer of centrifugal pump in China.

GN Solids Control makes and supply centrifugal pump for solids control system. There is a wide range of applications of centrifugal pump in various applications drilling mud system. Below are some of the applications we normal use.

1. GNSB Series Centrifugal pump can be used as trip pump in the trip tank of the oil and gas drilling mud system. Trip tank is normally the first tank compartment inside drilling mud solids control system. The tank volume of trip tank is not big. It can be a separate smaller size tank other other tanks in the solids control system. It can also a compartment divided from shale shaker tank. Centrifugal pump size 3×2 or 4×3 are mostly used as trip tank trip pump.

2. GNSB Series Centrifugal pump can be used as feed pump for desander, desilter, mud cleaner. The pump transfer capacity should be matching the handling capacity of desander, desilter and mud cleaner. It can be a little big higher than the separation equipment, but it cannot be too much high. And the centrifugal pump transfer capacity cannot be lower than the separation equipment.

3. GNSB Series Centrifugal pump can be used as mixing pump of jet mud mixer and mixing unit. While add a T-pipe at the outlet of the mixing pump, the same pump can also be used as transfer pump.

4. GNSB Series Centrifugal pump can be used as transfer pump to transfer drilling mud or other slurries from one tank to another, or from one location to another.

5. GNSB Series Centrifugal pump can be used as suction or supercharging pump for drilling rig mud pump.

All GN model centrifugal pump use tungsten carbide mechanical seal, with international famous brand Bearing. And spare parts interchangeable with most of the international Brand pump which helps customer to source spare parts easily. Open impeller design that lowers axial thrust loads, and make it easier for installation, repair and maintenance.

GN oil sludge treatment and Oil Base Mud and Drill Cuttings Treatment unit

BY admin 20 November 2020 Decanter Centrifuge, dewatering unit, Drilling Waste Management, Oil Sludge processing system, polymer mixing, Slurry separation plant

Oil sludge treatment, oil base mud and drill cuttings treatment is the major product made by GN Solids Control. Some clients do not know the difference of Oil sludge treatment system and oil base cuttings treatment system. They want to know the difference and know how to choose the right separation equipment.

Normally for OBM cuttings treatment, clients will separate cuttings and recover usable drilling fluids, and sell the drilling fluids. It is 2-phase separation. While for oil sludge treatment, clients will separate oil, water and solids. They do 3-phase separation.

Below are some general information to let clients know more about the different and about the equipment choosing.

1) As 3-phase centrifuge can only allow slurry with max. 10% solids content and particle size less than 2mm, 2-phase decanter centrifuge is must to be used before 3-phase separation to reduce the mud weight and solids percentage. After 2-phase centrifuge separation, the oil, water and soil mixture slurry flow into 3-phase decanter centrifuge to get oil, water and soil.

2) In order to remove as more ultra fine solids as possible, chemical dosing unit will be used together with decanter centrifuges for dewantering flocculation treatment. We quote you the 3-tank antomatic chemical dosing unit. It is used for powder chemicals. If you will use liquid chemical, pls tell me to revise the quotation.

3) Per our communication on Whatsapp. The pre-separation equipment for OBM cuttings and oil sludge is different. For pure OBM cuttings from shale shaker and mud cleaner, Vertical cuttings dryer is better. It can reduce the oil on the cuttings to 3% ~ 5%. It can remove more usable liquid. And the solids discharge is very dry.

But vertical cuttings dryer cannot be used to treat the soil sludge discharged from centrifuge. As its screen basket opening is 0.5mm, 0.35mm and min. 0.25mm. The soil cake from centrifuge is very fine and will all pass the screen opening.

4) Oil sludge is normally the mixture from different application, like drilling mud, drilling cuttings, soil cake from centrifuge separation, tank bottom slurry, slope oil, refinery waste oil slurry, industry waste oil, etc… The solids size and solids content is more complex. In this case, high G drying shaker is used for pre-seperation. And as the oil slurry is more complex, sometime, need to dilute and heating the sludge before separation. The solids waste discharge from High G drying shaker is with higher oil on the cuttings after separation. For example, before treatment the sludge with 15~20% oil content. After high G drying shaker, maybe around 10~15%, or even higher if the sludge with high viscosity and density.

Oil sludge separation treatment system used at oil field in China

BY admin 13 November 2020 Oil Sludge processing system, Slurry separation plant

GN Solids Control has an oil sludge treatment system which is used at Qinghai Oilfield in China. The system is used since May 2018 till now. It is a customized oil sludge waste reduction system. Clients are happy with its performance.

Many clients are showed great interest on the system, below is some information of the system to let people know more.

1.The system is used since May 2018 till now, the location is Qinghai Oilfield in China.

2.The liquid content of the raw material oil sludge is 70% – 80%.

3.There is a pre-mixing and heating modular in the oil sludge separation system. Oil sludge will be heated up to 60C degree, during the heating process, chemicals will be enhanced into the process procedure to help for separation. The chemical enhancing is based on the material situation. If the material is easy for separation, heating and chemical dosing may be not needed. It depends on the separation result.

4.There is a double deck drying shale shaker in the customized system for pre-separation. After shale shaker, there is a desander separator.

5.After desander mud cleaner, it is decanter centrifuge separation by an 18inch big bowl centrifuge. There are 2 sets GNLW453C-VFD centrifuge for ultra fine solids separation.

6.There are 2 types of sludge vacuum pump for sludge and slurry transfer in the system: GNSP20B and GNSP40B.

7.The system for the client is 2-phase separation. After separation, clients get clean oil slurry with small percentage ultra fine soil. The oil slurry recovered from GN oil sludge system will be further treated by slurry separation system to get oil and water. The final solid waste is taken to third party the biodegradation and pyrolysis company for processing.

GN Solids Control can also offer 3 phase separation after the 2 phase centrifuge sepration to get clean oil, water and solids.

Big Bowl Decanter Centrifuge sold for Oil Sludge Treatment Client

BY admin 30 October 2020 Decanter Centrifuge, dewatering unit, Oil Sludge processing system, Slurry separation plant, ultra fine solids separation

Big bowl decanter centrifuge is a major separation equipment for oil sludge treatment. GN Solids Control makes 2-phase decanter centrifuge for liquid and solids separation, and 3-phase decanter centrifuge for water, oil and solids separation. The centrifuge bowl sizes are vary from mini size 9 inch to big bowl 22 inch size and the largest big bowl 30 inch.

Last week, some sets of GNLW554ET- VFD decanter centrifuge were shipped to an clients doing oil sludge treatment. GN Solids Control makes T Series Decanter Centrifuge mainly for dewatering treatment and for thickness.

GN T series decanter centrifuge for dewatering / Thickening is with beach angle of 8.5 degree. It is widely used for maximum dewatering requirements of municipal and industrial waste water sludge. The dewatering decanter centrifuge is designed for easy separation material include large particle size, high density difference of solid and liquid, low viscosity, high concentration, high treatment capacity and higher dryness than clarity. The materials like sludge or wastewater containing fine particles usually need to be added with flocculants to gather the fine particles condensed into large ones, and then dewatered with T series decanter centrifuge.

Applicable Material of GN Solids Control T Series Decanter Centrifuge can be used to treat below materials, but not only limited to them: Drilling mud, environmental protection sewage, oily sludge, cutting fluid, sand washing water, mineral washing water, soda white mud, salt mud dewatering, magnesium aluminum emulsion, steel-making waste water, precision casting waste water, construction mud, tunnel mud, mine waste water, industrial waste water, organic waste water, aquaculture waste water, chemical industrial waste water, printing and dyeing waste water, municipal sewage, river sludge, water plant sludge, lake sludge, kaolin grading, calcium carbonate, bentonite, Silica, titanium dioxide, calcium sulfate, barium sulfate, conductive film glass polishing solution, aluminum hydroxide, cryolite, silicate, oil sand separation, landing oil, oil sludge, coal tar, inorganic fertilizer, Chinese medicine extraction such as taxus chinensis, honeysuckle and liquorice, clarification, concentration and dehydration of salt crystals, etc

The most popular bowl size used for oil sludge separation is 9 inch, 14 inch and 22 inch decanter centrifuge. For the 3 bowl sizes, GN Solids Control has 2 model series to suit for different material situation. The 2 model series are defined per the ratio of bowl length and bowl diameter. GNLW223, GNLW224, GNLW363, GNLW364, GNLW553, GNLW554.

Regarding the 3 bowl diameter 9 inch, 14 inch and 22 inch decanter centrifuge, the ratio of bowl length and bowl diameter can be 3 or 4. The ratio 3 serials decanter centrifuge can be used for oil and gas drilling fluids treatment. The ratio 4 decanter centrifuge is specially designed for oil sludge treatment and waste water, waste oil treatment.