August 15 2016

Vertical Screen Scroll Centrifuge

When drilling waste management becomes a big problem of oil gas industry. The Vertical Screen Scroll Centrifuge was brought to this application, the US manufacture improved the product and used it for drilling waste, then it became a standard product of drilling waste management. After GN Solids Control march into manufacturing the verticle cuttings dryer, now we are going to improve the orignal design of Vertical Screen Scroll Centrifuge, with experience of verticle cuttings dryer, and experience in drilling waste management.

The GN Vertical Screen Scroll Centrifuge uses centrifugal force to dry wet coal. A stainless steel screen bowl traps wet coal and accelerates them up 900RPM with G force to 420G. This G force is higher to most of GN competitors which will give better separation. Liquid is forced through the screen bowl openings, the openings of the screen is optional in different sizes, while “dry” coal are extracted by the angled flights or knives attached to the rotation cone, which rotate slightly slower speed than the bowl and screen. This differential speed is to push the dry solids or coal to discharge from the bottom of the screen centrifuge.

Tungsten carbide protects the flights from abrasive solids and ensures long operational life. This aids in maintaining a constant gap between the scroll and screen bowl of the centrifuge, which is crucial for proper operation.

Contact GN freely to discuss with us how to improve vertical screen scroll centrifuge for mining projects, if you are in the mining industry, and want to have a better product with better result.

August 05 2016

More Centrifuges for More Applications

We have been staying on the same business, solids control, focusing on, and making good products. Now we have well known shale shaker, compact mud system, and multi solution for drilling waste management. One of the main product is Decanter Centrifuge.

Some client prefer just call it decanter, some may only refer it as centrifuge, never mind this is our key product. And more and more professional production line keep us in the front of decanter centrifuge suppliers.

Not only the oilfield clients accepted us, and feedback that our equipment is even better than EU /US similar products. Other applications, more and more clients asked us for a solution, they bought our products to test their own ideas, so we hire more professionals in for other applications, to offer our client more professional solutions, not only good products, like we always doing.

Water treatment plants

Waste water treatment plants

Tannery waste treatment plants

Power plant treatment plants

Paper production mills treatment plants

Slaughterhouse treatment plants

Bioagas Plants

Fruit Juice

Cleaning and disposal of slop oil

Treatment of drilling mud

Treatment of tannery products


and even more...

Welcome to find GN Sales Team to describe your application, and find a more proper solution with us together.

Liquid Mud Plant
July 31 2016

4 New Mature Solution for Different Applications

GN Solids Control have been well known with solids control for oil gas drilling, waste management, compact mud system design etc. Not enough people know that we have actually done a lot on the other different applicaitons. While all the main separation equipment are shale shakers, mud cleaners, desander, desilters, decanter centrifuges. For differential application, the size and selection of equipment is different. But the principle is all the same solids and liquid separation

1)Liquid Mud Plant is consisted of different type of tanks to storage and mixing drilling mud.

2)Dredge Slurry Dewatering System is for dredging project slurry treatment to remove solids

3)Solid removal unit is mostly used for diamond core drilling

4)TBM slurry separation plant is popular for project of AVN Machines , Mixshields  or Shaft Sinking Machines.

For a specific project, basically we need to know below information to find a proper solution.1) Before our equipment, what happened

2) After our equipment, what kind of result you expect

3) Data or Media

4) What you use before? Comments, or complains?

5) Any kind of limitations

6) Budget

Ask for help from GN when you need.

solidification unit
July 24 2016

Updated Solidification Unit Ready for Operation

It is not always lucky that when some clients wanna buy or wanted to buy some equipment, then they can some and see it, well except decanter centrifuges, cuttings dryers we always keep in stock, just before this unit sent out. One of our customer come and check it, he was trying to buy one, and this trip get a chance to check it before delivery, though it is for domestic market.

The old Generation of GN drilling cuttings unit is one skid. And now the new Generation drilling cuttings solidification unit is divided into two parts . One Skid for mixer and solidification  feeding conveyors, the other skid for drilling cuttings storage and feeding system. This will give flexibility to client to use it’s own drilling cuttings storage hopper and feeding conveyor. Anyway, the system still be be put into a 40 FT container for shipping.

So what have been changed? Is that what your engineers do?

Well that is done by our engineers, yes, and also according feedback from side, helped by our clients, and the after sales team etc. so good that is have been done by everyone of our company. We all are concerning on the products improvement. 

So from the original one, this have been changed to 2 pcs, why not keep it 1 skid. Though we still trying to keep it compact, small but beatiful, efficient. It is not always a customized solution for a specific project, or a certain kind of site. It needs to fit more, and for some projects, the cement and chemical storage is not enough. So when you change the tanks to be bigger and if want to keep it transportable by a 40ft container, you can imagine a 70% exporting company, every step, container shipping need to be considered.

Then the plough have been strengthen, sorry no details.

We also add the flushing system, as there is really no space for a man to hop in. 

Some electronic protection is also a highlight, whenever you open the gate, it stop.

Keep tune, and find out more improvement we will do.

DNV CE centrifuge
July 18 2016

High Standard Decanter Centrifuge to Europe


When we discuss about made in China, there is some other stories we always heard, British laughed at German products before. The world do not like products made in Korea, made in Japan. While now made in German is sort of standard, and made in Korea and Japan means higher quality. So it is just now turn for China to be laughed. Even lots of people did not improve the quality themselves quite well, they think this is a trend. We never take it an easy way, GN keep focusing on high quality products, but we never take it as granted, as all GN people is working on it.

Also according this logic, accepting by Europe client is also sort of self-approval. Now more and more clients from Europe choose our products. Though it starts from Europen people working all over the world, but the EU local comapnies are now moving on to GN. Except the system working in central London, now a big company from UK is testing GN centrifuge. 

The model of the centrifuge is GNLW363CG-VFD. LW in Chinese means horizontal spiral type centrifuge that is typically used in oil industry. C tells the third generation of GN centrifuge shows in the past nearly 10 years, GN was always keeping on upgrading and improvement. And GN keep updating our equipment, to keep basic sourcing / tracing, we are using different word to make it different.

The G means this model is a high configuration with bowl material of duplex stainless steel 2205 which is much better than other China based manufacturer who still use SS304. Not only the material, GN is making different product from design, and details.

Inside the bowl, screw propeller are made of SS316 and protected by 4mm thick tungsten carbide tiles. Comparing with other China manufactures’ spray welding 2mm protection, GN’s screw propeller has much longer lifetime that would greatly reduce the future maintenance cost. For more flexible operation purpose, the client chose the variable frequency drive for different working speed.    

Keep tune on GN production, find more surprise.