After more than 15 years development, GN has accumulated much experience on the separation industry. At the primary of GN history, we main focus on providing equipment for solids control equipment for oil gas company. Our equipment main used to treat the drilling mud and built long terms cooperation with some top global energy company with good feedback from them. However, we are not limited on the solids control industry for now. We developed some models especially used for waste water treatment. Last week ,GN delivered 3 sets sludge dewatering system to European client.

As you know, Europe has the most strict requirement. After several times inspect to GN company, client finalized to use GN technical solution for the water treatment. From the picture you can see, the system combined with 2 parts. Part 1 is chemical dosing unit, which is used to feed flocculant to mix with slurry. The part 2 is a mud tank and installed with feeding pump and GN 224EP Decanter centrifuge.

Client require to remove out the particle smaller than 5 micron as much as possible ,it is hard to reach this target if we just take mechanical separation, so the flocculant iso necessary to combine the tiny solids into big to easy separate by Decanter centrifuge. The chemical dosing unit can feed medicine to 3 Decanter in same time. And it can be controlled separately.

We are required by client to design the mud tank as small as we can. GN224 series Decanter is the smallest model with 9 inch diameter of centrifugal bowl. The special design of cone angel will keep the discharged solids dryer enough. Small size decanter will allow us to use a tiny mud tank to install it. All the system is full automatic and continuous work, which will save much cost of labor for client. The stable quality will make sure the less cost of maintenance. Simply operation, stable quality, automatic are the features of GN equipment. If you have demand,please feel free to contact us.

 As we all know Thermal power plant ,coal washing and coal mineral these industry always treat large coal, and wash the coal before use it. The cola after washing is convenient to use and improve the thermal efficiency. But it also generate large waste water, which will pollute the environment, GN Decanter centrifuge is specially developed for the waste water treatment.

In the coal washing process , which will add various type additive, these mixture always heavy noxious, and include large of fine coal in the waste water. How to reduce the pollution ,recycle the coal and clean water for reusing ? That is a big problem for every company. Decanter centrifuge is one of the best solution. First, it is one kind continuous working machine and automatic, that can satisfied the big treating requirement. Second, decanter centrifuge can separate out the particle smaller than 5um, after we mixed with flocculant, the tiny particle less than 5um also can be removed. Third ,the discharged water from decanter centrifuge can be directly reuse to the coal washing system, it do no need to any further treating. The recycled coal and water will save much money for company.

GN 764 Decanter centrifuge is the biggest model of us. To be honest ,this model doesn’t suitable other industry except mineral industry. As we all know, mineral always generated large slurry, the 764 big treating capacity is his biggest feature not only for coal washing ,but also for all different mineral slurry separation. It centrifuge bowl diameter is 760mm and the length is 4 times of diameter. The more longer bowl length means the slurry will stay more longer inside decanter ,and get more better separate effect. The centrifuge bowl is the main component of the decanter, it directly affect the stability. Every GN centrifuge bowl must pass 3 times balance testing to make sure reach the best performance.

If your project have demand in the big treating capacity decanter, welcome to contact us.

GN has focused on the solids control and separation industry for many years, we do have much experience for various material treatment. GNLW224 Decanter centrifuge is one kind small treating capacity device, which has GNLW224EP,EY and EC. All the three kind have the same rate of length/diameter4.2：1. the difference is the cone angle of bowl and the distance between screw. This serious have wide application ,waste water treatment,chemical material separation,fruit juice  separation, and also some other industry for material separation.

The structure of machine

The Decanter include main assembly ,power transfer assembly ,feeding ,base and electrical control. The main assembly contain the centrifuge bowl, scroll. And the bow is columnar, bid end has 4 discharged port for liquid, and the wire of port is adjustable to control the liquid deep inside of the bowl. The small end has 6 discharge port for solids.  When machine working ,the screw push the solids forward through different rotate speed. And insert the anti-wear tile in the screw for long lifetime.

Feeding part include feeding pipe,flashing pipe and solids discharge flange. Every pipe are connected with vale to change the feeding and flushing. Feeding pipe is same bearing with centrifuge bowl. Material through feeding pipe get into inside of decanter. And the material will distribute on the wall of centrifuge bowl under the centrifuge force. And then the water and solids will be separate into different layer because different density. The higher density material will bear bigger force and sink on bottom. The flushing pipe is used to feed clean water. We must clean the decanter centrifuge every time after finish work. To flush out the residual solids. Otherwise ,the solids will make the decanter loss balance when turn on in the next using.

The electrical control panel has normal and explosion-proof the two different type. As usual,the explosion-proof will be used on oil well drilling ,chemical material separation industry. EY,EC,EP are used for different separation target. If your project have demanded on decanter centrifuge ,welcome to contact us for more information.

As we all know, GN is famous with the solids control equipment, and we have served the oil gas industry for more than 15 years. Our equipment is very popular in different country because the excellent quality and quickly after sale service. Solids control equipment is main used to treat the drilling slurry, not only the oil well drilling ,but in some HDD project, tunnel boring project also will use drilling slurry. We are also full experience to treat these drilling mud. Last week we provide the big centrifuge bowl decanter centrifuge for tunnel boring project.

Tunnel boring machine is widely used for the subway project and mountain tunnel. When it work,the machine need to large mud to cool the rig and the mud will carry the drilling cutting out the tunnel. The normal small decanter is not enough to separate so large drilling mud. It must used the big capacity. GN 764 decanter centrifuge is the biggest model of GN, which centrifuge bowl is 30 inch, and the capacity is 120m3/hour. It is a good choice for these big project.

In this project, client require that the recycled water must be very clear to reduce the water consume. And also the discharged will be convenient to transport and further treatment after dewatering. To reach this target, we add combine chemical dosing in this system to add flocculant, which can combine the tiny solids into big, which will be helpful to decanter to separate out the solids. Form the photo you can the discharged water is very clean and can be directly reuse.

In the modern project, we have to reduce the consume of water source, protect the surrounding environment. Decanter centrifuge is good choice for the waste management. GN not only provide the decanter centrifuge ,but also the whole solution for various project. Such as the solids control system for well drilling, mud system for HDD, Mining slurry treatment. You will be welcomed to contact us for more information.