VFD control centrifuge | GN Decanter Centrifuge

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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Meet Good manufacturer of decanter centrifuge at CIPPE 2018

If you are looking for a good manufacturer of decanter centrifuge, vertical cuttings dryer, shale shaker, shaker screens, welcome to visit GN solids control stand at CIPPE 2018 to check our equipments.
Our stand info is as below:

GNLW363CG-VFD decanter centrifuge is one of the best sold model for our international clients, it can be used for solids control system, drilling waste management system, industry waste water treatment, dredging slurry separation, dewatering system, barite recovery, Low gravity solids separation, etc.
GNLW553C-VFD decanter centrifuge is the best sold big bowl big volume centrifuge, it is normally used as dewatering centrifuge with chemical dosing system for waste water treatment, it can be used for all kinds of waste water treatment. Sometimes it is used for oil sludge treatment system when the clients need 20~25m3/h treating capacity.

We will also show vertical G dryer GNCD930, it works together with GNLW363CG-VFD decanter centrifuge as drilling cuttings treatment system for oil based mud.
4 panel shale shaker GNZS594E installed with composite material shaker screens, with longer service life and better performance. We produce shaker screens in our own workshop, so GN solids control can control the quality by our own quality control dept. without purchasing from other suppliers. We produce OEM shaker screens for own shaker and replacement shaker screens for US brand shale shaker, like Derrick, Swaco, Brandt, FSI, Kemtron, etc.

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Meet Good manufacturer of decanter centrifuge at CIPPE 2018

We will show our best sold model decanter centrifuge at the show. As the largest and most professional oilfield industry products and service exhibition in China, all of the manufacturers will show their most advanced technology during the show.
GNLW363CG-VFD decanter centrifuge is one of the best sold model for our international clients, it can be used for solids control system, drilling waste management system, industry waste water treatment, dredging slurry separation, dewatering system, barite recovery, Low gravity solids separation, etc.

GNLW553C-VFD decanter centrifuge is the best sold big bowl big volume centrifuge, it is normally used as dewatering centrifuge with chemical dosing system for waste water treatment, it can be used for all kinds of waste water treatment. Sometimes it is used for oil sludge treatment system when the clients need 20~25m3/h treating capacity.

继续阅读“Meet Good manufacturer of decanter centrifuge at CIPPE 2018”

Q/A for GNLW Series Decanter Centrifuges

GN Solids Control, as the first API certified solids control manufacturer in China and also the leading oil and gas centrifuge producer, has a full range of centrifuge models from the 9 inch diameter bowl baby centrifuge to the 30 inch diameter bowl giant centrifuge. Each year, GN produces more than 150 sets centrifuges of different sizes and GN equipment like shale shakers, shaker screens and decanter centrifuges are sold to more than 70 countries or regions in the world.

About GN Solids Control

This Q/A are giving more information for choosing and getting a more comprehensive information of GN Centrifuges.
1. Why there are VFD for decanter centrifuge and also fixed speed available?
VFD control panel helps the operators to adjust the speed, the differential speed and other main parameters of centrifuge to get a suitable separating result. In drilling cuttings or drilling fluid waste management conditions, when the material condition is not stable, it is necessary to use a VFD one. But in case of solids control system of a drilling rig, when the mud condition is stable, a fixed speed control panel here is more economic, cause it requests less maintenance and easier operating. Take GNLW363CG for example, even the fixed speed one, GN could provide pulley and belt for an extra common speed.
2. What’s the main difference between the high speed decanter centrifuge and a middle speed decanter centrifuge? The rotating speed of centrifuge determines the cutting point the centrifuge could treat out, for example the GNLW452C decanter centrifuge, with a typical speed at 1800RPM is mainly used in a solids control system for barite recovery, the cutting point is 5 to 7 microns, while the GNLW453C-VFD with a typical speed of 3000RPM, which is a high speed one, cutting point is 2-5 microns.
3. What’s the difference between longer centrifuge and shorter centrifuge? The length diameter ratio is an important factor of a centrifuge. The longer centrifuge is a centrifuge with a larger length diameter ratio. The bigger this value is, the longer time material stays in centrifuge, then the dryer separating result you could get.
For more information, welcome to visit GN website of contact GN sales directly.

GN Big Bowl Centrifuge Working With Large Capacity

Since early this year in CIPPE Beijing, GN Solids Control firstly showed its big bowl decanter centrifuge GNLW764-VFD, the super bowl decanter centrifuge with a diameter of up to 30 inches, this centrifuge model got lots of attentions from the end users, especially from the construction work and piling projects. The large capacity and excellent performance is exactly what they want.

The big bowl centrifuge GNLW764-VFD has following features:
1. With a bowl of 7650mm long, while 3344mm as a bowl diameter, GNLW764 is promised to have a large treating capacity in order to be suitable for many applications.
2. Because for the large length diameter ratio, which is up to 4.4 and also a G force at 3000G by high speed rotating, this centrifuge could give a for a perfect separation result, a clearer Liquid phase after treatment.
3. Just as all centrifuge models GN provides, the liquid discharge port is easy to adjust. It helps operator to get a suitable dryness fraction by adjusting rotation speed, differential speed and liquid discharge ports.
4. Stable performance：all rotating part of the centrifuge are fabricated by five-axis machine, and well dynamic balancing tested at high speed to ensure a precise fabrication. Besides, theis model is also functioned with automatic lubrication.
5. Heavy load：GN employs a gearbox with 25000N.M torque for GNLW764-VFD for handling heavy load conditions.
6. Long service life：bowl material is duplex stainless steel SS2304 by centrifugal casting, YG8 hard tiles for impeller protection, and also YG8 material for liquid discharge ports and solids discharge ports. Genuine SKF bearings are used in order to ensure a longer service life.
7. Easy operation：with PLC smart control system，HMI visual operating screen, the operator can observe the on time working condition of the centrifuge. By adding more devices onto the centrifuge like temperature protection for bearings, vibration protection, overload protection and current monitor are all equipped fo this centrifuge, for a more convenient operation.