This week, GN finished the fabrication of one set dredging slurry separation system for Canada client. After the trial installation in factory, the system will be shipped out.
GN dredging slurry dewatering system is applicable for the bottom sludge cleaning projects of various rivers and lakes. At the front end, a dredger is required to dig the sludge from the bottom of the river. After coarse filtration, stones, animal and plant residues, large particle garbage and other sundries are removed, and then it can be connected to the GN dredging slurry dewatering system for further solid phase separation.

GN dredging slurry dewatering system adopts the design principle of step-by-step treatment. According to the size of particles contained in the slurry, the solid phase is separated from the water through different separation equipment. The following is a brief introduction to the main equipment and working principle of this system:

1. Vibrating screen – GNZS706. In this system, the separation equipment in the first stage is GN double-layer vibrating screen, which can effectively separate the coarse particles in the slurry through two layers of screens with different mesh sizes, so as to reduce the burden of subsequent separation.

2. Hydrocyclone unit – the slurry treated by vibrating screen will be sent to desander GNZJ703F-2S and desilter GNZJ703F-12N in turn to separate particles with a size of about 75 microns and 20 microns from water respectively. The system is equipped with four centrifugal slurry pumps, which are used as feed pumps of cyclone equipment and other material conveying purposes.

3. Sludge dewatering centrifuge – in order to obtain more clarified water, a dewatering centrifuge needs to be used to separate the fine particles in the muddy water. Dredging project generally requires relatively large flow, so GN is equipped with the largest dewater centrifuge GNLW764A-VFD that can be produced at present. The bowl diameter of this centrifuge is 30 inches. The thin oil lubrication station is used to lubricate the main bearing. During operation, the maximum separation factor can reach 3000G. On the premise of not adding flocculants, the solid phase of 2 ~ 5 microns can be separated, which makes separated liquid phase more clear.

In addition to separation equipment, GN is also equipped with slurry storage tank for temporary storage and reception of liquid in this system. At the same time, the solid slag of the discharge equipment is also equipped with a screw conveyor to transport the slag to the outside of the system.

According to the requirements of customers and different working conditions, GN can provide users with customized dredging slurry system solution, and can provide design drawings and technical consultation free of charge before sales. For more information, please contact GN Separation

GN Solids Control last week shipped another batch of centrifugal mud pumps and oilfield centrifuges to an international drilling company. GN Solids Control is a turnkey solids and liquid separation equipment manufacturer who has rich years of experience on design, manufacture the most cost effective solutions. 

GN Solids Control provides 2 sets 14 inch bowl decanter centrifuge GNLW363CG to this drilling company. Usually when 2 centrifuges are using together, the first one is used to remove solids by volume and the second one is used to remove solids by particles. 2 sets GN centrifuge can be used for high gravity drilling mud or low gravity drilling mud treating, or can be used for barite recovery.  

GN fix speed decanter centrifuge GNLW363CG, rotating speed can be changed by using different pulleys and belts although takes time. GN Solids Control also provides variable speed decanter centrifuge, all the main working parameters can be adjusted easily in the HMI of the VFD box, meanwhile running status and alarms are monitored. 
In order to remove fine particles from the drilling mud, GN Solids Control provides chemical dosing unit so the solids less than 5 microns can be removed. 
Besides these 2 sets GN decanter centrifuges, GN Solids Control also provides 16 sets centrifugal pumps, include 4 sets GNSB4x3C-11J, 6 sets GNSB6x5C-13J and 6 sets GNSB8x6C-14J. 
GN made centrifugal pumps are totally interchangeable with NOV Mission Magnum pump. To protect the centrifugal pump and impeller from weariness, GN Solids Control use hard ductile iron alloy. 

GN centrifugal pumps are widely used to feed slurry into desander or desilter, and they can be also used in the jet mud mixing unit, or play as a trip pump. 
Besides GN decanter centrifuge, centrifugal pumps, GN Solids Control is able to provide the shale shaker, vacuum pump, shaker screen, cuttings dryer as well as big oil sludge treating system, drilling mud storage plant etc.

Merry Christmas and Happy New Year! 
Merry Christmas and Happy New Year to all GN families and GN friends. Time fly so fast that the 2021 is only several days left, and we are walking into 2022. Due to COVID, 2021 is a tough year and we are happy to say that we made it and we are honor to provide quality convincing products to GN customers even under some uncertain factors, like environmental protection, crazy shipping freight, travel restrictions…
We would like to give the sincere thanks to all friends that care of GN Solids Control development, we wish all of you a healthy, happy, and prosperous 2022. Whatever brings the best, we wish you they are yours. At this time, we’d like to take this opportunity to thanks for all GN employees, all of you work so hard to meet our sales target, no matter from our sales team, our technical team, our manufacturing team…

GN Solids Control has been working on solids control and waste management area for many years, and GN is proud to be the No.1 manufacturer who are certified with by API Q1 3rd USA party. Now GN Solids Control is mainly focusing on providing a turnkey solids and liquid separation solution. 
1.GN Shale Shaker 
Every year, GN Solids Control manufactures around 200-300 sets shale shakers, almost 70% of them are using outside of China. Shale shaker is the first phase treating equipment when speaks of drilling mud control, while GN shaker shakers are also widely used in environmental industry.  
2.GN Decanter Centrifuge
GN Decanter Centrifuge is a fine treating unit, solids larger than 2-5 microns can be remove under a large G force. GN Solids Control builds different configurations centrifuges which can be used in various industries. 
3.GN Vacuum Pump 
GN Vacuum Pump is one of the most cost-effective transferring pump, any material as long as it not a big solid cake can be moved by this pump. GN Vaccum pump are designed to move the most tough materials. 
More and more better products can be provided by GN, contact your sales rep. for the most cost effective solution.