gnadmin | GN Decanter Centrifuge

GN dewatering centrifuge for Tunneling in Singapore

GN dewatering centrifuge is working well for Tunneling in Singapore, our engineer just finished the first time installation and commissioning there and back to China. As per client’s request, our engineer can fly to the client’s site to support them for the first time installation, commissioning and training. If the equipments will work well or not, it will mostly depend on the proper maintenance and operation, we will train the client’s engineer how to operate it and how to do the maintenance.

The dewatering centrifuge system for Tunneling is to treat the waste mud / sludge/ water and reuse the water, the discharged solids should be dry enough to collect by bags then shipped by truck. The configuration is as below:
1) GNLW363-VFD decanter centrifuge is widely used for dewatering unit to treat the waste water
2) Chemical dosing system/ flocculation system
3) 20ft container with windows and doors.
4) Netzsch brand screw pump as the feeding pump of decanter centrifuge, which is the ideal feeding pump to control the frequency to control the flow rate, compared with centrifugal pump and slurry pump, it works more steadily.

Before feeding to the decanter centrifuge, we suggest the client to use a screen/ filter or high G drying shaker / desander / desilter before the dewatering centrifuge system, the purpose is to prevent course solids enter into the centrifuge and the screw will be damaged and centrifuge will be blocked. The core components of the centrifuge is the screw, GN centrifuge screw is completely made by stainless steel, and protected by tungsten carbide tiles, the fluids distribution port is protected by tungsten carbide alloy for wear resistant.
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2 units of decanter centrifuge ready for shipment

This week 2 units of VFD decanter centrifuge ready for shipment to India for ONGC project in GN factory. The clients ordered 2 units of GNLW453C-VFD with screw pump for their solids control system with their customized painting color.

GNLW453C-VFD centrifuge with 18inch bowl and 61inch length, the max G force is up to 2578G, considering the high temperature in India, the positive pressurized VFD control panel with air conditioner for cooling, in some countries with environmental temperature less than 40 degree, the VFD control panel attached cooling tube for cooling. The frequency converter of the main motor, back drive motor and pump motor is all made of ABB brand, the other electric components are also world famous brand like Siemens/ schneider/ ABB, the motor and VFD control panel are all ATEX approval and suitable for 460V/60HZ, 3 phase and apply for zone 1 application.
Features of GN decanter centrifuge:
1) Different with other Chinese centrifuge manufacturer, GN use SKF bearings, since bearing block is the most important part for centrifuge, we use more reliable brand bearing to improve the centrifuge working life and reduce maintenance cost.
2) The screw is completely made of stainless steel, the impeller is protected by tungsten carbide tiles, the fluids distribution port is protected by tungsten alloy and interchangeable.
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GN Containerized Drilling Cuttings Treatment System and Shale Shakers for Russia

This week GN shipped one set of containerized drilling cuttings treatment system and several units of shale shaker to Russia. This is not the first containerized drilling cuttings treatment system sold to Russia, because of the low temperature in Russia area, the client do not want to stop operation in the long winter, this customized design is to keep the drilling fluids warm and prevent it from get frozen.

The containerized drilling cuttings treatment system including one unit of vertical G dryer with fluids collection tank, one mud agitator installed on top of the collection tank. The centrifuge feeding pump transfer the mud from fluids collection tank to the decanter centrifuge to separate more solids from the fluids, the final discharged solids can be reused for the drilling rig or used to prepare for new drilling fluids. The solids discharged from the vertical G dryer is with OOC < 5% like powder, they will be transferred by the screw conveyor to the cuttings box outside the container. One unit of 4kw screw pump is used as flashing pump of the vertical G dryer. The whole drilling cuttings system treating capacity is 40m3/h for oil based drilling cuttings, the decanter centrifuge with VFD control panel can be used to separate the fine solids from the fluids, the separation cut point is 2~5 microns.

The client also ordered several units of GNZS594 shale shaker with 4 panel composite material frame shaker screens, the screen size is 585x1165mm, the total screen area is 2.73m2, the G force is high up to 7.5G.

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GN Solids Control will Exhibit at 2018 OTC in Houston USA

After participation in the CIPPE 2018 in Beijing, China from 27th to 29th March, 2018, GN solids control will participate in OTC 2018 in Houston , TX. For more information of CIPPE 2018, pls check : http://www.gnsolidscontrol.com/drilling-fluids/welcome-to-gn-booth-for-the-2018-cippe-beijing-oil-show

We welcome you to visit GN at CIPPE 2018 in Beijing and visit GN factory where is 30km from the exhibition center during the oil exhibition.
OTC 2018 general information: for more information, pls visit their website: http://2018.otcnet.org/
Show Time & Location: 30 April – 3 May, 2018. NRG Park, Houston, Texas, USA
Booth No. 1: NRG Center 1369-1 (GN China)
Booth No. 2: NRG Arena 8000 (GN America)
What equipments will GN show at OTC？

Decanter centrifuge GNLW363C, this is the best sold model decanter centrifuge among all the decanter centrifuge models.
Shale shaker: GNZS594F-HB, we have many sets of shale shaker and mud cleaner in stock in Houston warehouse for immediate shipment, we install Martin brand vibration motor made in USA and assembly in our warehouse.
Sludge Vacuum pump:GNSP-20A, this is our new products in 2018, we have sold GNSP-40A vacuum pump for drilling cuttings transfer and dredging slurry transfer for dredging slurry separation system, sometimes the vacuum pump may not be suitable to transfer the oil sludge based on the sludge density and viscosity and the depth. GNSP-10A & GNSP-20A vacuum pump is the new designed model to meet the client’s requirement for smaller treating capacity.

Mud cleaner: GNZS594E-2S12N
Centrifugal pump, the installation dimension, outer dimension and spare parts are all interchangeable with Mission Magnum centrifugal pump.

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2 units of drilling cuttings transfer vacuum pump to South America

This week GN solids control shipped 2 units of drilling cuttings transfer vacuum pump to Argentina, this is used together with 2 sets of drilling waste management system shipped in May, 2017. The client also bought 4 sets of cuttings screw conveyor to transfer the drilling cuttings.

Both of the cuttings vacuum pump and screw conveyor can be used to transfer the drilling cuttings to the vertical cutting dryer, also called vertical G dryer. The discharged solids from vertical cuttings dryer with OOC < 5%, the discharged fluids are transferred to the decanter centrifuge by screw pump. The vertical cuttings dryer and decanter centrifuge are the major equipments for drilling waste management system.
How to install the vacuum pump in the jobsite besides the vertical cuttings dryer?
The vacuum pump can replace the screw conveyor when the fluids content is higher in the drilling cuttings, GN will provide chargable material collection hopper to install on the top inlet of the vertical cuttings dryer. The vacuum pump will suck the drilling cuttings/ oil sludge from the waste pit with hose, the discharge line is also connect with the vertical cuttings dryer inlet top.
When the solids content is higher in the drilling cuttings, the client will use 2 sets of screw conveyor, one set is installed horizontally to collect the drilling cuttings from the solids control system, the other set is installed inslantly with less than 45 degree angle from the underground. The 2nd screw conveyor will transfer the drilling cuttings to vertical G dryer. Pls check the working video of the vacuum pump to transfer drilling cuttings or oil sludge from GN solids control wedsite.
http://www.gnsolidscontrol.com/video/gn-drilling-cuttings-or-sludge-vacuum-transfer-pump-working-video
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