Desander Desilter

One set of Dredging slurry dewatering equipments working in North America, here is the working video for your reference. https://www.gnseparation.com/video/dredging-slurry-dewatering-equipment-working-in-north-america
It is a customized design slurry dewatering system according to our client’s requirement, if you need a solution for any kinds of slurry in solids liquid separation, for example, dredging slurry, mining tailings, industrial waste slurry, animal waste, oil sludge, drilling waste, etc., pls contact with GN solids control/ GN separation.

Mainly the dredging slurry dewatering equipments including shale shaker ( to separate coarse solids and reduce solids content) , desander ( solids separation cut point 40 microns), desilter ( solids separation cut point 20 microns), big bowl dewatering centrifuge ( mechanical separation cut point 2~5 microns, working with chemical dosing to improve the separation efficiency), feeding pump, screw conveyor ( to transfer the discharged solids), mud tank for liquids storage, with pipelines for proper flow diagram. The working process is as below:

Firstly the shale shaker separate the coarse solids bigger than 300 microns by using proper mesh size shaker screen, secondly the desander cone to separate the 50~300 microns solids, the desilter cone to separate the 20~ 50 microns material, the dewatering centrifuge to separate fine solids to get clean water, which can be sent to waste water treatment facility if need. The solids can be transferred by screw conveyor to cuttings collection box and transfer to other area for construction area. The whole system meets the standard of North America usage.

The big bowl dewatering centrifuge is 30 inch bowl diameter, the bowl length is 131 inch, the designed capacity is 528gpm, the max G force is up to 3000G, the gearbox torch is 25000N.M., gearbox ratio is 38:1. The main motor is 160KW, the back drive motor is 90KW, the centrifuge is drived by the VFD control panel.

Shale shaker deck angle adjustment is one of the important operation for shale shaker usage. As a professional shale shaker manufacturer in China, we can produce linear motion shale shaker and dual motion ( linear motion and balance elliptical motion) shale shaker for oil & gas drilling mud cleaning system, we can produce single layer and double layer shale shaker, also we have 2 panel, 3 panel, 4 panel, 5 panel, 6 panel shale shaker with different treating capacity for different applications, also we have drilling fluids cleaning shale shaker, oil sludge shale shaker, ViST shale shaker, mining screen ( including stack vibrating screen, mining vibration screen, high G fine vibrating screen, double deck linear vibrating screen, etc), also we produce equipped shaker screens by GN own workshop which produced compliant with API RP13C standard.

There are 2 types shale shaker deck angle adjustment method, one is electrical, one is mechanical, the deck angel adjustment is according to the drilling fluids solids size, density, feeding capacity, drilling fluids type, shaker screen type and mesh size, normally it is adjusted according to the user’s experience. GN shale shaker deck angle can be mechanically adjusted synchronously at both sides, it doesnot need 2 persons to operate the shaker at the same time, one person can do the work from one side, he can adjust both sides synchronously.
The tools to adjust the deck angle is ratchet wrench, which is stock in the tool box when delivery.

The operator holds the ratchet wrench and causes it to rotate to drive the lead screw elevator. The lead screw of the lead screw elevator drives the 4 lifting tube assembly to rise or fall, and the lifting tube assembly stops rotating when it reaches the ideal position. Through the above operations, the user can choose an appropriate angle for production based on the on-site mud performance and flow rate.

GN solids control and GN Separation will participate in Oil & Gas Indonesia 2023 exhibition in Jakarta together. The exhibition information is as below:
Exhibition Name: Oil & Gas Indonesia 2023
Exhibition time: Sep. 13th ~ Sep. 16th, 2023
Location: Jakarta International Expo, Kemayoran
This is the third time for GN solids control to participate in the exhibition, which is the 14th International Oil and Gas Exploration, Production and Refining Exhibition, as one of the solids control equipments manufacturer in China, we have exported our equipments to over 70 countries in the world, we have long term cooperation with our Indonesia clients since 2012.
The equipments we supplied to Indonesia including:
Decanter centrifuge, which can be applied for solids control drilling mud treatment, drilling waste treatment, oil sludge treatment, dewatering centrifuge, waste water treatment.

Shale shaker, it has been widely used for oil and gas drilling, workover rig, geothermal drilling, water well drilling mud cleaning. Shale shaker is the most important solids control equipments for drilling fluids cleaning, a good performance shale shaker will influence the whole solids control system performance. GN shale shaker has the features as below:
1) Patent design sealing rubber technology with oil resistance and more wearable for better sealing performance
2) Composite material shaker screen comply with API RP13C standard
3) Italy Oli or Itavibras brand vibration motor to drive the shale shaker and provide G force up to 7.6G, which is adjustable.
4) Mechanical deck angle adjustment can adjust the shaker deck for different drilling conditions

Shale Shaker screens
Vacuum degasser
Mud cleaner, desander, desilter
Centrifugal pump
Mud agitator
Mud gas separator
Mud tank system
Welcome to meet with GN solids control at Oil & Gas Indonesia 2023 exhibition in Jakarta and check our equipments, we can provide customized solution for your solids liquid separation requirement.

As a screw conveyor manufacturer in China, GN solids control can produce screw conveyor with different size and transfer length as per client’s requirement.

Before selling, we will collect necessary information from our clients, including transfer materials, density, moisture, temperature, max particle size, solids content, etc. According to the reply, there are different material for selection, such as carbon steel, stainless steel SS304, SS316L, ASTM A36, etc. Also we will select proper models according to transfer flow capacity, conveyor angle( the screw conveyor can be installed horizontally and inclined, but the angle should be no more than 40 degree), the screw type (feeder type or conveyor type), feeding type ( flood load or uniform), installation condition (indoor, outdoor ), inlet port and outlet port, power supply, explosion proof standard, fixed speed or variable speed, and other information necessary. The screw conveyor quantity and models are also according to the site layout.

The screw conveyor is a traditional equipment to transfer the drilling cuttings, drilling fluids and other waste sludge from solids control system primary shaker or from waste pit. The tightly closed casing cover is utilized for better sealing result, except for drilling waste, the screw conveyor can be also used to transfer food, medicine, chemical, paper making, environmental solutions, metallurgy, building materials, electricity, coal ash, cement, sand, lump coal, cereals, etc.
GN can produce Screw conveyor with diameter 10inch, 12 inch, 14 inch, 16 inch and 18 inch, the transfer length is customized, each section is standard 12ft, there are 1 section, 2 sections, 3 section and 4 sections for option, with 12ft, 24ft, 36ft, 48ft length.
The screw flights are made of wear resistant and thicker manganese steel, reinforced frame outside the conveyor with high strength to the complete conveyor, the bearings are from NSK or FAG for reliable working.

GN Solids Australia Pty Ltd based in Brisbane, Queensland is established recently, this is another GN branch company after GN Solids America LLC based in Houston, TX. For more information about GN Solids Australia, pls visit https://www.gnsolidsaustralia.com/ .

Since 2009, we have proudly served the Australian market from our headquarter in China, the headquarter office address is Dachang Chaobai River Development area, Langfang, China. We have totally 3 factories under production in China, for the production of shaker screens, centrifugal pump, decanter centrifuge, vertical cuttings dryer, shale shaker, mud cleaner, desander, desilter, vacuum degasser, mud tank system, mud agitator, mud gun, mixing hopper, screw conveyor, oil sludge treatment unit, drilling waste management system, solids control system, mud recycling unit, desander unit, etc.
There are 3 major business in GN Solids Ausralia, trenchless mud recycling unit, oil & gas drilling solids control equipment and mining separation dewatering centrifuge. Not only for single equipments and spare parts, GN solids Australia also provide complete package of separation system with a turn key solutions. Also we will have some stocks in Australia for better service of our clients in Australia and New Zealand, including equipments spare parts, shaker screens and solids standard equipments for fast delivery.
GN Solids Australia will attend 2023 No Dig Down Under (Trenchless exhibition) at Brisbane soon, the exhibition location is Brisbane Convention & Exhibition Centre, the exhibition date is Sep.12th to 14th, 2023.

Except for GN Solids Australia, we also have branch and warehouse in Houston, Texas, we also have pre-selling team and after-sales engineer there for better service of our clients in South America and North America, we have regular stock equipments and shaker screens in the warehouse for fast delivery, including decanter centrifuge, vertical cuttings dryer, linear motion shale shaker, Sludge vacuum pump, centrifuge feeding pump, etc.

Recently one set of mud cleaner and drilling waste management system with auger transferring system are ready for shipment to international drilling company, they will be installed at same rig site. The equipments list is as below:

Mud cleaner, which is a combination of desander cone, desilter cone and bottom shale shaker, the treating capacity is 1000gpm, the shaker screen installed on the bottom shaker is 4pcs of 585x1165mm shaker screen with 3 layers of stainless steel 316L material wire mesh, the shaker screen is produced comply with API RP13C standard.

Cuttings transfer system, including 2 units of 12ft screw conveyor to pick up the discharged drill cuttings from decanter centrifuge and vertical cuttings dryer and transfer them to the cuttings collection box automatically. The telescopic skid supporting system is included according to rig layout.

Drilling waste management system, standard design for OBM and SOBM cuttings treatment, including vertical cuttings dryer, VFD decanter centrifuge, flushing pump, centrifuge feeding pump, centrifuge telescopic skid, vertical cutting dryer telescopic skid and fluids collection tank skid, with integral electric control system, accessories.
Vertical cuttings dryer GNCD930 has been widely used to separate coarse solids from drilling waste, the discharged solids discharged from solids outlet port and transferred by screw conveyor to skip, the oil on the cuttings will be normally less than 5%~10% depends on different drilling waste, the recovery fluids will flow to intermediate tank for fluids collection, the centrifuge feeding pump will feed the fluids to decanter centrifuge to separate fine solids, the separation cut point is 2~ 5 microns, the treated fluids can be reused to prepare for new drilling fluids for drilling rig. If it is for final disposal process, we will use oil water separator or dewatering unit to separate it as little solids, oil and water. The water will be sent to waste water treatment facility, the oil be recovered, solids to TDU.

Recently one batch of drilling waste management equipments are ready for shipment to our international clients, the equipments list including:
1) One unit of vertical cuttings dryer GNCD930, it can be widely used for treatment of drilling cuttings discharged from oil based mud (OBM) and synthetic based mud (SBM), the standard speed is 900rpm and G force is up to 420G, VFD drive is available for adjusting speed to maximize the vertical cuttings dryer performance. The cuttings dryer flights on the rotor is hard facing to HRC65 for longer working life. It equipped with individual oil lubrication system with automatic alarm for pressure limit. The main motor and oil pump motor is interlocked with each other to avoid the start of the main motor prior to the oil pump motor start.

2) Two units of VFD decanter centrifuge GNLW363D-VFD, the VFD control panel is a positive pressurized control panel with air conditioner for cooling, applicable for zone 1 and zone 2. VFD from Yaskawa, ABB or Siemens brand, PLC and touch screen are from Siemens and other famous brand. Circuit breakers and other components from Schneider or other brands.

3) Two units of fixed speed decanter centrifuge GNLW363D, we can provide different speed pulleys according to client’s requirement, the centrifuge bowl diameter is 14 inch, and the centrifuge bowl length is 50 inch, the treating capacity will varies according to different material and speed.
4) Five units of Germany Netzsch brand screw pump GNG20-055C
5) Five units of Germany Netzsch brand screw pump GNG30-075C
6) Two units of screw conveyor with spare screw scroll set for replacement GNSC14B-36 with local control panel

7) One unit of spare parts, such as stator, rotor, explosion proof motor, etc.
For more information about drilling waste treatment equipments, pls contact with GN Solids control.

Recently one unit of 3-Phase Disc Stack Separator are ready for shipment for Overseas Vegetable Oil Separation. The technical configuration is as below:

Centrifuge Model：GNSD225
Centrifuge Bowl diameter：810 mm
Piston diameter：730 mm
Treating capacity：30-40 m3/h
Rotation speed：4500 RPM
Volume：27L
Motor power：75kw
Drive type：Belt drive
Start time：8~15min
Stop time：30min
Bearing：SKF
The centrifuge bowl, collection box, big piston material is made of duplex stainless steel SS2507
Control system: VFD control panel with Siemens PLC, ABB drive, Schneider touch screen, operation screen in EN/CN language
Filter: Including sealing water filter. Produced according to food grade, all seals are made of fluororubber.

Except for Vegetable Oil Separation industry, the 3 phase disc stack separator can be also used for oil sludge separation unit with customized design according to material to be treated.
For oil sludge treatment system, we have option of 3 phase decanter centrifuge and 3 phase disc stack separator according to client’s requirement. The effective pre-treatment process should be done before centrifuge separation process, including pre-mixing tank ,coarse screening unit and 2 phase decanter centrifuge separation unit, which can reduce solids content effectively.
There are 4 models of 3 phase disc separator for option, GNSD-40, GNSD-90, GNSD-125, GNSD-225, it can be selected by required capacity. The 3 phase decanter centrifuge with a separation factor of approx. 3000G, and 3 phase disc stack separator G force is up to 12000G. The 3 phase disc separator can more thoroughly separate liquids with different specific gravity and the liquid phase discharged is more clarified. But the complicated operation of the 3 phase disc separator will limit its usage.
If you need a two phase decanter centrifuge, three phase decanter centrifuge, three phase disc stack separator to treat your material, pls contact with GN solids.

Recently one unit of offshore lifting standard vacuum degasser and offshore lifting standard VFD decanter centrifuge are ready for shipment to international client. The equipments will be used for offshore drilling project.
Features of GNZCQ270B vacuum degasser:
1) Stainless steel material cabinet for corrosion resistance
2) Self contained vacuum degasser without jetting pump
3) Ultrasonic controller t prevent vacuum or liquid to an undesired high level for option
4) Offshore lifting standard frame with the vacuum degasser for safety lifting when movement
5) Horizontal installed vacuum degasser, compact structure, easier operation
6) Treating capacity up to 1200gpm, the vacuum is -0.02~-0.04Mpa, main motor power is 30HP, vacuum pump power is 10HP
7) The vacuum degasser is suitable for various mud recycling system, it is important in restoring the specific gravity of mud, stabilizing the viscosity of mud, and reducing drilling cost.

Features of GNLW363D-VFD decanter centrifuge:
1) Stainless steel material positive pressurized VFD control panel with self cooling system, with PLC smart control from Siemens and other famous brand
2) Main motor, back drive motor and pump motor 3 VFD from Yaskawa, ABB or Siemens brand
3) The centrifuge skid comply with offshore lifting standard
4) The centrifuge bowl main components are made of duplex stainless steel 2205 or 2304 by centrifugal casting, which is superior to the performance of SS304 and SS316L.
The other components are made by SS316L to avoid intergranular corrosion and incomplete residual stress release caused by traditional welding process.

5) The solids outlet and liquid outlet are protected by tungsten carbide insert and it is replaceable
6) The SKF brand bearing for longer and reliable working life
7) The screw blades are protected by tungsten carbide tiles and it is repairable
If you need vacuum degasser and decanter centrifuge, pls contact with GN solids control.

This week one batch of GNZS594J-SHBJ shale shaker and GNSB8×6C-13J centrifugal pumps are ready for shipment to India.
GNZS594J-SHBJ shale shaker with 4 panel of 585x1165mm composite material frame shaker screens. The vibration mode is linear motion, reference treating capacity is 140m3/h by API40 shaker screen, it is drived by 2ea 2.3HP Italy Oli brand vibration motor. The vibration G force is up to 7.5G and it is adjustable. The screen area is 2.73m2, and the deck angle adjustment range is from -1° to +5°. The shale shaker application including oil & gas drilling mud solids control, oil & gas drilling waste management, oil sludge treatment unit, HDD mud treatment, TBM slurry separation, construction slurry mud treatment, mining drilling mud treatment and other types of mud treatment.

The starter and vibration motor have different explosion proof standard for option: CNEX / ATEX / IECEx, standard ExdIIBT4. The shaker screens installed on the shale shaker is produced comply with API RP13C standard, with 3 layers of stainless steel 316L wire mesh and composite material frame for longer working life.
Fast disassembly design of sealing strip on shaker deck bottom, it is convenient to replace the sealing rubber, wear resistant polyurethane rubber strip with good sealing effect and longer working life. Also side fluids outlet plate and bottom fluids outlet plate is removable with sealing rubber.

8 units of GNSB8×6C-13J centrifugal pump (55KW) is used as transfer pump of the slurry, the electric control panel is installed on the skid to control the electric motor.The pump casing and impeller is made from hard ductile iron alloy to extend the working life, and all the spare parts are interchangeable with international famous brand centrifugal pump to outsource the spare parts easily.
If you need linear motion shale shaker and centrifugal pump, pls contact with GN solids control.