decanter centrifuge

This week we shipped one unit of oil based drilling waste management system for CNPC, they ever bought similar system before for their domestic and international projects.


To get ideal result of the discharge cuttings and recover oil as much as possible, the performance of vertical cuttings dryer is the major concern. GN has a lot of successful experience for drilling waste management projects, our vertical cuttings dryer has been improved to E version from the year of 2013 when we firstly produce the vertical cutting dryer as per our client’s suggestion and site feedback. From the first A version to the existing E version vertical cuttings dryer, it has been more and more user friendly and maintenance cost has been reduced a lot.


We have 900rpm, 1200rpm rotary speed for option to meet different requirement, the G force is up to 420G / 750G, and the screen basket opening can be 0.25mm, 0.35mm, 0.5mm for option for different drilling waste conditions. The screen basket and screen basket frame is separated, the operator only need to replace the single screen basket when it is wear. The independent oil lubrication system is for better lubrication of the bearing to prevent it from over heating. The automatic interlock system between oil pump motor, main motor and flush pump motor is equipped in case that the main motor starts before oil pump motor.
The decanter centrifuge is used after the vertical cuttings dryer to treat the fluids discharged from the vertical cuttings dryer, after treated by the centrifuge, the fine solids over 2 microns can be separated mostly, the fluids can be used to prepare for new drilling fluids or reuse directly. The high speed decanter centrifuge is used for low gravity solids, the max speed is up to 3900rpm.
If you need oil based cuttings treatment system, pls contact with GN freely.

This week GN solids control shipped 2 units of Large Bowl 30 inch GNLW764A Decanter Centrifuge for Mining Industry to Australia, this is the largest centrifuge model we have made right now, we have 9 inch, 14 inch, 18 inch, 22 inch and 30 inch bowl decanter centrifuge with different treating capacity, different speed, different G force for various applications.


The diameter of the centrifuge bowl is 760mm, the bowl length is 3328mm, the treating capacity is 528gpm, max bowl speed is 2650rpm, typical bowl speed is 2200rpm, max G force up to 3000G, typical G force is 2060G. The main power is 160KW, back drive motor is 90KW, the gearbox Torch is 25000.N.M.


Same with the smaller decanter centrifuge, the screw propeller protection is tungsten carbide tiles, the bowl fluids distribution port and solids discharge port is protected tungsten alloy for longer working life, the bowl material is made of duplex stainless steel 2304 for anti corrosion.


The bearing for this big bowl centrifuge is very big, need separate lubrication system for better lubrication to extend the working life of the bearings. The plate type heating exchanging system can effectively cool down the lubrication oil so that to get a better cooling performance and the temperature sensor installed on the bearing seat will send signal to the PLC to trip off the centrifuge in case of over high temperature.

One unit of 1m3/h oil sludge treatment system testing unit is shipped to Europe recently, this is for client’s urgent requirement, later the 15m3/h oil sludge separation system will be shipped next month for the same client.


The client has visited GN factory in Beijing twice, after factory inspection and business negotiation, they placed order for the 15 m3 oil sludge treatment system, and also the 1 m3/h oil sludge separation system for urgent purpose.
To check the working video of the 1m3/h oil sludge separation unit, pls check our website:
http://gnsolidscontrol.com/video/oil-sludge-treatment-test-unit-working-video


The main components of the system including:
1) 2 panel shale shaker to separate coarse solids from the oil sludge in case of any coarse solids will damage the decanter centrifuge
2) 2 phase mini decanter centrifuge to separate the fine solids maximumly from the oil sludge by mixing with chemicals, with fluids collection box
3) 3 phase disc centrifuge to separate the oil from water to get pure oil and pure water
4) Oil storage tank and water storage tank
5) Pre mixing tank with mud agitator, heating lines
6) Chemical dosing system
7) Shale shaker fluids storage tank with heating lines
8) Shale shaker feeding pump
9) Decanter centrifuge feeding pump
10) Tank skid for the all equipments

The system is originally produced to show at CIPPE oil exhibition, after the exhibition, we shipped the testing unit to a domestic client for testing their oil sludge treatment, they use the proper chemical jetting and get the satisfied result, then we shipped the unit back to our factory for cleaning, and prepare to test in other client’s jobsite.

In recent weeks, GN Solids Control just finished its production for a new project in the tunnel bored drilling industry, the order includes two large bowl decanter centrifuge and two containerized chemical dosing system. Successfully delivered this system to the customer representing GN’s great manufacturing capability and strong delivery capability.


GN Solids Control is a integrated company specialized in manufacturing the solid control equipment and spare parts, including but not limited to shale shaker, decanter centrifuge, cutting dryer, etc. This two new large bowl decanter centrifuge have the bowl size of 22 inches, and can process large volume of drilling mud and make it meeting the standard of disposal and recycle. This large bowl decanter centrifuge inherited the same great features from its predecessor 363 which is a very popular, mature and reliable product during all GN’s product line. The bowl material is made of 2205 stainless steel which is very tough and reliable, the screw conveyor surface is covered with tungsten carbide tiles which is easy for replacement and very easy for maintenance. The solid and liquid discharge port is also made with the tungsten carbide inserts, which has very good longevity. The bearing is provided by world famous brand SKF. All in all, this is a very cost effective but very good quality product. The containerized chemical dosing system is a great value and supplement to the decanter centrifuge, if the customer want to separate smaller solids, as the decanter centrifuge can only separate the solid size from 5-20 microns, when using the chemical dosing system, the solid separation size could reach up to almost zero. GN believe the customer will like it after using it.


GN welcomes you to log on to our website www.gnsolidsamerica.com and browse GN’s full product line, and if you want to get more detailed info, you can send your inquiries to lucas@gnsolidscontrol.com.

ADIPEC 2017 will be held in Abu Dhabi next week, this year as the oil price is recovering gradually and today the WTI price has reached up to USD 57 per barrel, we believe ADIPEC 2017 will be more successful than last year’s and will attract more and more attendees and exhibitors to attend the show, exchanging the ideas and share the latest technology in the oil and gas industry.


GN Solid Control is the advanced manufacturer for the solid control and waste management equipment and system. GN has been consistently attending the ADIPEC show for many years, and each year the customers will see GN’s growth and development. Now GN has become the one stop shop for all the solid control equipment, from shale shaker, decanter centrifuge, cutting dryer, to the various kind of pumps, such as centrifugal pump, screw pump, to the agitator, mud gas separator. GN not only make some new in equipment, but also make the great upgrade on the shale shaker screen. From the beginning of this year, GN has fully upgraded its shaker screen from the old steel frame screen, this will make much better performance and longevity that ever before. Also the new composite frame screen has larger non blank area and the processing capacity has been improved dramatically. And most of the screens are 3 layers, the wire mesh suppliers are the same as the other famous brand screens, such as the MI SWACO, DERRICK. If you are interested in this product, you could come to GN’s booth and take a look at it. We believe you will be impressed by the screen when you finally see it. Seeing is believing, welcome to GN’s booth.


ADIPEC 2017 is just around the corner, all GN staff is ready to welcome the friends from all over the world. Also welcome you to log on to our website www.gnsolidsamerica.com , and if you want to get more detailed info, you can send your inquiries to lucas@gnsolidscontrol.com.