Category: decanter centrifuge

GNLW454GT Mud Dewatering Centrifuge for Hydrovac Slurry Treatment

One set of GNLW454GT mud dewatering centrifuge package are ready for shipment to Hydrovac slurry treatment project.


GNLW454GT Decanter centrifuge technical specification is as below:
The bowl diameter is 450mm, the bowl length is 1890mm, the length/ diameter ratio is 4.2.The max bowl speed is 3452rpm, the max G force is up to 3000G. The main motor is 37KW / 45KW/ 55KW, the back drive motor is 11KW/ 15KW/ 22KW, the beach angle is 8.5 degree, The bowl main material is made of duplex stainless steel SS2205 by centrifugal casting, the screw material is made of duplex stainless steel SS2205, the screw is protected by tungsten carbide tiles, and the centrifuge is drived by positive pressurized VFD control panel with PLC touch screen and HMI interface. The bearing is premium SKF bearing for reliable and longer working life. The T series decanter centrifuge is mainly used for dewatering unit.


GN solids control design and manufacture waste management for hydrovac slurry treatment system. The working principal is to use solids liquid separation equipment to treat the slurry from vacuum truck of hydrovac project. The slurry is contaminant free which is from physical utility location in public right of ways, and directional drilling for replacement of underground pipes and construction.


A complete hydrovav slurry treatment system including waste catch hopper, coarse solids separation shaker with fluids catching tank, Fine mesh shaker , desilter and mud tank, dewatering decanter centrifuge and chemical dosing unit with centrifuge dewatering tank or telescopic skid. The decanter centrifuge and VFD control panel and feeding pump are all installed on the telescopic skid with fluids collection tank and a transfer pump.
Except for T series decanter centrifuge, GN also produce fully hydraulic drive decanter centrifuge, Y series separation decanter centrifuge, C series clarifying decanter centrifuge and three phase decanter centrifuge.

Shale Shakers and Vacuum Degassers for 2000HP drilling rig to Europe

Recently one set of 2000HP drilling rig solids control equipments are ready for delivery to Europe. The equipments list including:


1. 3 sets of GNZS594K drilling mud shale shaker, it has 4 panel shaker screen, the vibration mode is linear motion, the reference flow rate is 140m3/h, it is drived by 2ea 1.94KW vibration motor, the vibration G force is adjustable and up to 7.5G, the total screen area is 2.73m2. The deck angle is adjustable from -1° to +5°.


2. 1 set of GNZJ594K-3S16N mud cleaner, this is a combo unit combined 3ea of 10 inch desander cone, 16ea of 4 inch desilter cone and bottom shale shaker. The treating capacity is 1500gpm.The bottom shale shaker model is GNZS594K, same with the linear motion shale shaker, the shaker screen is same 4 pcs of 585x1165mm shaker screens.
3. 1 set of GNZCQ360 vacuum degasser


4. 1 set of GNLW363D drilling fluids decanter centrifuge, the bowl diameter is 14 inch, the bowl length is 50 inch, the bowl and the screw core shaft are made of duplex stainless steel SS2304 by centrifugal casting, the other major parts are made of stainless steel 316L, the screw are protected by tungsten carbide tiles, which is interchangeable. The solids outlet and liquid outlet are protected by replaceable hard alloy sleeve.
Except for shale shaker, mud cleaner, vacuum degasser, decanter centrifuge, etc. solids control equipments, GN solids control also produce other solids control equipments, like mud a

Hydrovac Slurry Separation System for America Client

Recently one set of hydrovac slurry separation system are ready for shipment to America client. The customized hydrovac slurry separation system including:
1. Coarse screening module, including feeding hopper with spray nozzle for hydrovac truck loading the materials. The top of the hopper has a big opening mesh and the discharge port is controlled by valves to feed to the coarse screening shaker.


The coarse shaker with a catch tank, 2 units mud agitators are installed at each side of the mud tank for better agitating. The submersible slurry pump can transfer the fluids which is discharged from coarse solids separation shaker, and feed to the next fine mesh shale shaker.
2. Fine mesh screening module, the fine mesh shale shaker and desilter mud cleaner are installed on the shaker tank, which can be divided into 2 compartments. The solids bigger than 300 microns can be separated out by the fine mesh shaker.


3. Desilter module, The fluids will drop into the mud tank under the shale shaker, then the desilter feeding pump feed the fluids to the desilter cone of the mud cleaner. The mud agitators are installed on the shaker tank. The desilter separation cut point is 15~40 microns.


4. Big bowl decanter centrifuge module, the big bowl decanter centrifuge with chemical dosing unit are installed on the telescopic skid, the mechanical separation cut point is 2~ 5 microns, with chemical dosing system, the ultra fine solids can be also separated out. The fluids catching tank under the skid can collect the centrifuge discharged fluids and a centrifugal pump can transfer the water to other tanks. The big bowl centrifuge is a 22 inch bowl and the bowl length is 71 inch, with a positive pressurized VFD control panel.
If you need a customized hydrovac slurry separation system, pls contact with GN solids control.

16 Sets Drilling Mud Centrifuge and Vertical Cuttings Dryer for overseas oilfield service company

Recently 16 sets of drilling mud centrifuge and vertical cuttings dryer are ready for delivery to overseas oilfield service company.
One set of drilling mud centrifuge package including 1 unit of decanter centrifuge, telescopic skid and 1ea decanter centrifuge feeding pump. GNLW363D decanter centrifuge is the most popular high speed decanter centrifuge used for drilling mud treatment and drilling cuttings treatment. The bowl diameter is 14 inch, the bowl length is 50 inch, the designed treating capacity is 200gpm, and typical capacity is 132 gpm. The max bowl speed is 3900rpm, and typical bowl speed is 3200rpm. The max G force is 3063G, typical G force is 2062G. The separation cut point is 2 ~5 microns.

One set of vertical cuttings dryer package including 1 unit of vertical cuttings dryer, cuttings dryer skid, flushing pump and solids discharge system. The most popular vertical cuttings dryer model is GNCD930G, the treating capacity is 30 ~50 tons per hour. For the oil based drilling cuttings fresh collected from primary solids control shale shaker, the treated oil content in the cuttings is less than 5%. If the client needs less oil content in the cuttings, the solids discharged can be sent to Thermal Desorption Unit. The screen diameter is 930mm, we have 0.25mm, 0.35mm, 0.5mm three type screen opening for option. The rotation speed is 900rpm, G force is 420G, oil tank capacity is 48L. The main motor is 55KW, the oil pump motor 0.55KW.The standard vertical cuttings dryer with solids discharge collection hopper, as client’s requirement, GN designed customized solids discharge system with vibration motor for faster solids discharge.


Except for decanter centrifuge package and vertical cuttings dryer package, GN solids control also produce different size screw conveyor, high G drying shaker and complete line of solids control equipments and shaker screens.

Containerized Tank Cleaning Oil Sludge Treatment System for Europe Customer

One set of containerized tank cleaning oil sludge treatment system are shipped to Europe customer.

As an OEM manufacturer of oil sludge treatment system in China, GN solids control design and produce standard oil sludge treatment system to treat drilling waste, waste oil sludge, oily water, and other oil waste. We have GNOST-01, GNOST-05 & GNOST-15 oil sludge treatment system with treating capacity 1 ~2 m3/h, 5m3/h and 15m3/h. Also we can produce customized oil sludge treatment system as client’s special requirement. The purpose to use GN oil sludge treatment system is to reduce the drilling waste in volume before feeding to Thermal Desorption Unit and separate the oil, water and solids, so that the power consumption and operation cost will be reduced and the treatment efficiency of TDU will be also improved.


The technical configuration including:
1. 20ft containerized pre-mixing tank module, 2 sets
2. Double deck shale shaker separation module, including the double deck shale shaker with anti splash cover and flushing system, mud agitator, liquid level meter, 1 set


3. Fully Hydraulic drive decanter centrifuge two phase separation module, 1 set , 18 inch bowl diameter, bowl length 61 inch, the typical treating capacity is 60m3/h and dewatering capacity is 15m3/h, The main motor is 100HP, the fully hydraulic drive system is from VISCOTHERM brand. The full hydraulic drive decanter centrifuge can be used in high ambient temperature for heavy mud with flexible bowl and differential speed. The bowl main components are made of duplex stainless steel SS2304 by centrifugal casting, which is superior to the performance of SS304 and SS316L.
4. Chemical dosing unit module, 1 set
All of the above modules are installed inside standard container with certificate for convenient movement. If you need a customized solution of oil sludge treatment system, pls contact with GN solids control