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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.

GN Solids Control is a turnkey solids and liquid separation manufacturer with hundreds of mud systems or mud plants provided to worldwide clients every year. During the passed week, GN Solids Control shipped one 35,0000 bbl liquid mud plant for an international drilling fluids service company. 

This liquid mud plant is mainly composed by the below modules:
1.Mud Solids Control Module
GN Solids Control is especially focusing on solids control and drilling waste management in the oil and gas industry. GN made mud solids control systems are always the most cost effective solution for drilling contractors and drilling fluids service company. 

GN Solids provides 1 set shale shaker GNZS594F, 2 sets decanter centrifuge includes 1 middle high speed centrifuge GNLW452D and 1 high speed centrifuge GNLW363C. 
2.Mud Mixing Module

4 sets mud mixing centrifugal pumps and 4 sets mud hoppers are connected with the mud mixing module. GN made mud hopper is a venturi type that push drilling chemicals inside the mud tank. And with mud agitators fixed on the tanks to keep drilling mud from sediment. 
3.Vertical Storage Module
GN Solids Control provides totally 70 sets vertical mud storage tanks, each tank is 500 bbl. Based on the mud, GN Solids Control divides the mud into 3 groups to stock oil base mud, water base mud and synthesized base mud. 

With waking platforms and ladders fixed around or on the vertical storage tanks, this storage module is easy to check for maintenance. A radar type level sensor is fixed on the top of each tank, plus the magnetic flip level meter, GN Solids Control provides a convenient way for customer to read the mud volume. 
In fact, this 35,000 bbl liquid mud plant is a repeat order as GN Solids Control provides a smaller one last year. With the excellent working performance and convincing quality, this International client is confident to give us another order. We look forward to hear good news from this client in the near future.

GN Solids Control made drilling waste management systems are widely using in the global world drilling rig sites, several days ago GN Solids Control received one more positive feedback on Hi-G shaker and cuttings dryer from an International oilfield company.
Usually, drilling cuttings are classified into water base cuttings and oil base cuttings, as the water base cuttings are mainly treated by shale shaker and decanter centrifuge, while cuttings dryer and decanter centrifuge will be the perfect solution to treat oil base cuttings.

As for this overseas oilfield service company, GN Solids Control provides the following main treating equipment:
1.GN Hi-G Shaker: GNZS594F-SGZF
GN Hi-G Drying shaker GNZS594F-SGZF is a 4 panels shaker which collects the drilling cuttings from primary shaker, and eliminate water from the cuttings.
GN Solids Control is the only China screen manufacturer who can provides a full series of API RP 13C third party screen report. Under the high G force, GN drying shaker is able to remove most of big particles from WBM.

2.GN Cuttings Dryer: GNCD930F-VFD
Cuttings dryer is the most cost effective treating equipment when speaks of oil base cuttings, as the dryer can rotate under high G force so the oil can penetrate the screen basket with the cuttings left inside and fall off to the collecting hopper.
GN Solids Control provides 3 different opening sizes of screen basket, 0.25 mm, 035 mm and 0.5 mm. Screen basket scraper and flushing nozzles protect the cuttings discharge rings from blocking.

3.GN Screw Conveyor: GNSC12B-24, GNSC14B-48
To move the treated cuttings conveniently, GN Solids Control provides screw conveyor underneath the Hi-G drying shaker and Cuttings Dryer. GN Solids Control also provides height adjusting skids for the screw conveyors so they can work in different sites. In fact, those recovered drilling fluids from Hi-G drying shaker and Cuttings Dryer can be further treated by GN decanter centrifuge.

As one of the largest types of GN Solids Control customers, oil & gas service companies has repeated orders on different kinds of solids control and DWM equipment. These weeks, GN Solids Control has finished one batch of solids control equipment for an international oilfield service company, will get them delivered very soon. 
GN Solids Control has been providing the most cost-effective solids and liquid separation equipment for many years, in this batch GN provides the following equipment:

1.GN Shale Shaker
4 sets of GN shale shaker GNZS594F will be used to remove big particles (usually larger than 100 microns) from the drilling mud. GNZS594 is a linear motion shale shaker fixed with 4 pcs shaker screens. GN Solids Control is the only shaker manufacturer that can provide a full series of API RP 13C shaker screen report. 

2.GN Mud Cleaner
GN mud cleaner GNZJ594F-3S16N is a 3 in 1 unit with compact structure, 2 different sizes of cyclones fixed on the top of shale shaker. After treated by GN shale shaker, centrifugal pump feeds the drilling mud into 10 inch desander cyclones first before a second centrifugal pump feeds into those 4 inch desitler cyclones. 

3.GN Decanter Centrifuge
2 sets GN Decanter Centrifuges GNlW454ET-VFD are used after the mud cleaner. 454 is a 18 inch rotating bowl centrifuge, the first decanter centrifuge will be used to remove most of the solids by quantity, while the second decanter centrifuge will be used to remove most of the solids by sizes as they will be running under middle high speed and high speed separately. 
In case one centrifuge is broken and need to be repaired, another centrifuge can be switched to guarantee the working without disturb. 
GN Solids Control has provides many solids and liquid separation equipment to global clients for many years, with more and more successful projects running in different sites, GN Solids Control always able to provide the most cost-effective solution.

GN Solids Control has been providing slurry separation equipment for many years to global drilling contractors. Last week, GN Solids Control delivered one set of GNTBM-360 slurry separation plant to a pipe jacking engineering company. 
Several months ago, GN Solids Control also provided one GNTBM-240 to a South American client. Most of these systems have similar design, they mainly includes the following treating components:

1.Shale Shaker
Shale shaker is the first phase to remove big particles from the mud. GN coarse vibrating shaker is fixed with opening mesh polyurethane screens which last longer when remove different sizes of stones or aggregates. 
2.Desander
GN Solids Control uses 18 inch sizes cyclones to remove slurry after treated by coarse shaker, 2 pcs desander cones are fixed on the top of a finer shaker. 
After treated by the desander, slurry falls onto the screen panel, which vibrate under the liner force of min. 7 G. Here weaving shaker screens are used, all are made by GN Solids Control. GN is able to build over 8000 pcs per month, and screens are tested by USA 3rd party in order to have the ideal precise cut point and conductance area. 

3.Desitler
Multiple 4 inch desilter cyclones are also fixed on the top of a finer shaker, a feeding pump suck the slurry and pump into the 4 inch desilter cyclones where most of the solids larger than 25 microns can be removed. 
4.Feeding Pump
GN Solids Control provides different types of feeding pumps, such as centrifugal pump, submersible pump and vacuum pump etc. In this pipe jacking engineering, GN Solids Control used two slurry feeding pumps, which are wear-proof to transfer high solids content slurry. 

5.Compact structure with storage tank
A compact structure to hold all the above treating equipment, with necessary walkways, ladders or safety guide rails. Mud storage tank has level sensor to keep the slurry in a reasonable level by control the on or off of the slurry pump. Whole system is easy to move or transport. 

GN Solids Control this month finished manufacturing of one whole set waste sludge dewatering system for an environmental company, it mainly includes dewatering centrifuge, screw press dewatering machine and chemical dosing unit.
Solids and liquid separation or liquid and liquid separation is always the topic when you need to treat waste, either precious solids need to be recovered or valuable liquid need to be thickened, or harmful oil should be removed, GN Solids Control always have the right equipment for you.

1.GN Dewatering Centrifuge
GN decanter centrifuge is effectively used to dewater different kinds of slurry, among various types of GN centrifuges, the T series is especially used to dewater sludge such as oil and gas drilling mud, oily sludge, mineral water, municipal or industrial wastewater, sludge from chemicals manufacturing company such as soda white mud or salt mud dewatering.
With a half cone angle of 8 degree, the rotating bowl is made of duplex stainless steel 2205or 2304, centrifuge solids discharge ports are embed with long time last wear resistance tungsten carbide tiles.

2.GN Dewatering Screw Press
GN Dewatering Screw Press is one of the most cost-effective treating unit, compared to decanter centrifuge it is way low budget is a big lure for many clients. Dewatering screw press uses an economical way to press the liquid out from the sludge.
Same with the decanter centrifuge, a pretreating equipment is needed to remove big particles. Dewatering screw press can work continously and automatically, ideal for the sludge concentration of between 2,000 mg/l to 50,000 mg/l.

3.GN Chemical Dosing Unit
When there are too much finer particles, a chemical dosing unit is very necessary to provide polymer together with the feed slurry into decanter centrifuge and dewater screw press. GN Solids Control has standard chemical dosing unit, equipped with dosing pump, and convenient to control on the smart control box.
GN Solids Control always has the right solution for you on solids and liquid waste separation.

As one of the leading water treatment show in the world, WEFTEC 2021 has thousands of exhibitors participated. Due to COVID, there are not that less exhibitors and visitors this year compared before, but GN Solids America witnessed a fast recovery of US economy and is so glad to be part of it.
The WEFTEC 2021 was held in Chicago from Oct.16th to 20th. GN Solids America LLC participated in this show and exhibited one vacuum pump and one waste water decanter centrifuge. Along with some posters and a TV to play some working videos GN did.
Hundreds of professional visitors came to GN booth, and had a hot & friendly discussions on GN vacuum pump, GN decanter centrifuge, GN dewatering screw press as well as some other solids and liquid separation solutions.

1.GN Vacuum Pump
GN Solids Control exhibits one 20 m3/h vacuum pump, besides this pump GN Solids Control also manufactures 5 m3/h, 40 m3/h pumps. Vacuum pump is particularly designed to move heavy density and larger viscosity materials, as long as the material is flowable, GN Solids Vacuum Pump can move it in a proper way.
An air compressor must be equipped with the vacuum pump to provide driven force. Vacuum pump can not working continuously due to the air need to suck and discharge every once a while. The working period can be adjusted easily by two switched on a control box. GN Solids Control also offers automatic mode and manual mode to control the on/off of the pump.

2.GN Decanter Centrifuge
Decanter centrifuge is widely used in various solids and liquid separation, GN Solids Control exhibits one 9 inch bowl decanter centrifuge GNLW224. In fact, GN Solids Control made centrifuge has different beach angles to working as dewatering, clarifying, and thickening.
We’d like to thanks for those visitors came to GN booth during this great WEFTEC show, and we are looking forward to meet you next year in New Orleans.

Construction slurry comes from many activities, such as hydrovac excavation, horizontal directional drilling, tunnel boring, piling drilling etc. Usually this slurry is mixed with solids and liquid, which need to be delivered to liquid waste management company for further treating.
Before it might be OK to dig a pit and pour inside without doing anything, but not suitable or allowable under the new environmental protection rules. GN Solids Control has been helping thousands of client treat their slurry in an economical way and varies on the treated material sometimes GN helps client to set up a new business line with satisfying profit.

GN Solids Control has been providing construction slurry dewatering system globally for many years, today we’d like to share one hydrovac slurry dewatering sytem that we provided to a North American client.

In the old days, hydrovac slurry need to be driven by fleet to a liquid waste company, and most of the treating equipment either takes too much energy or too large to treat, and need high maintenance. While by using GN hydrovac slurry dewatering system, hydrovac contractors find a cost-effective way to treat the slurry and recover sellable aggregates, sands, silts as reusable water.
Here are the main treating equipment in GN hydrovac slurry dewatering system: GN Coarse Shaker, GN Double Deck Shaker, GN Desilter Cyclone, GN Decanter Centrifuge, GN Chemical Dosing Unit and GN Mud Tank.
As we know thousands of clients have thousands of needs, everyone is special and deserve a tailored solids and liquid treating systems. When GN Solids Control provides a hydrovac slurry system, we send experience engineers to clients working sites and communicated thoroughly on all details. GN compact design hydrovac slurry dewatering system always meet clients’ demands. With more and more systems GN provided, we are more confident to provide a successful solution.
‘Before it is waste, now it is treasure. Nobody can imagine this before’, says one of hydrovac waste management CEO.