gnadmin | GN Decanter Centrifuge

Aluminium Hydroxide Slurry Dehydration/Dewater/Dewatering

Aluminium Hydroxide Slurry Treatment is always a big headache because of the strict environment policy, and the factories would also prefer to recover the Aluminium hydroxide, which separated and recollected from the slurry, in order to save cost.

It always takes long time to apply the approach of Natural Settlement, and also the clients request that the concentration to be 60%~80%, and the the alumina (Aluminum Hydroxide) slurry has a concentration of only 8% to 10%. The Aluminum Hydroxide Slurry Treatment contains water and Sodium Nitrate.

GN Solids Control offers an Economy and Convenient approach for Aluminium Hydroxide Slurry Dehydration/Dewater/Dewatering, it is Decanter Centrifuge.

The Procedure shown as above pictures, the slurry are feed into Decanter Centrifuge, where solid and liquid would be separated, and the Clean water and Dry Solid would be discharged from different port.

The Solids Discharge Port is made of Tungsten Carbide Insert, which it is anti-abrasion, and it would extend the working hours.

GN focus on manufacturing Decanter Centrifuge for 11 years, and has 220, 360, 450, 550, 760 series, with capacity ranging from 100 L/min to 120 m3/h, for the clients to choose based on their specified requirement.

GN supplies about 200 sets of Decanter Centrifuge every year, with 70% for International Market, widely used for Solid-Liquid Separation, and dewatering projects.

GN has two factories under operation, and a third one under manufacturing now, with more than 100, 000 square meters totally.

GN also manufacture and supply feeding pump, for feeding material into the Decanter Centrifuge.

Welcome to contact us for more information.

Kevin Liu (kevin@gnseparation.com)

Region Sales Manager

GN Solids Control

Dredging Slurry/Material Treatment

Dredging Material Treatment is always a big problem for local governments, especially for De-watering the material.

GN Solids Control can supply One Stop, Turnkey Solution for Dredging Material Treatment.

Last week, GN 1000 GPM dredging slurry separation system was delivered to work site for customer’s project starting celebration. It is the first unit standard configuration system for dredging slurry separation which showed that GN has made herself getting into a further level for river and lake sludge cleaning up.

Main Equipments for 1000GPM Dredging Slurry Separation System,
1. GNZS703 Shale shaker – 2 Units
2. GNZJ703-2S De-sander – 1 Unit
3. GNSB6x5-13 Sand Pump – 2 Units
4. Mud tank and accessories

Working Procedure,
The Dredging Slurry firstly go through the shale shakers, in order to remove the solids with more than 100 um. The slurry after the Shale Shaker Treatment would go through the De-Sander, in order to remove the the solids between 45~70 um. There are independent mud tanks under the shale shaker and De-sander, for collecting the liquid separately passing from the shale shaker and De-sander.

The two sand pumps are used for feeding material into the Shake Shaker and De-sander Separately.

GN also develops Decanter Centrifuge for removing fine solids (up to 5um) from liquid, and removing all the Solids from Liquid, with Polymer Dosing System.

Welcome to contact us if you need more information.

GN Solids Control CO.

Kevin Liu

Hydro Excavation Waste Slurry Treatment

What is Hydro Excavation?

Hydro Excavation is now popular in North America for excavating soil by High Pressurized Water. Then an air conveyance or vacuum is used to transfer the mixture of water, soil, large size trash and some other materials into a debris tank. This Hydro Excavation allows for a non-destructive to excavate soil and locate underground utilities.

How to deal with the Hydro Excavation Waste Slurry Treatment?

GN Solids Control provides One Stop, Turn Key Solution to recover water and discharge the soil suitable for environment. The process diagram is as below.

1. Waste Collecting and Washing Module – the waste slurry is delivered to site via the hydro truck and then discharged to a large size collecting hopper at which bottom there are valves to discharge the slurry onto a coarse screen for large size trash separation.

The liquid with fine particles is collected in the tank located under the coarse screen. The liquid is then pumped to GN high G force drying shaker for finer solids separation. Here the operator can also use pressure flushing device to wash the slurry. GN shaker is fixed with composite frame shaker screen for longer working time and better performance.

2. Fine Solids Hydro cycling Separation Module – GN desilter with hydro cyclone manifold is fixed on a washing tank for further separation of the fine solids. The under shaker of the desilter is same model with GN drying shaker for easy maintenance. The hydro cyclone is using centrifugal force and gravity to separate the liquid and solids. The slurry is pumped into the cyclone with high speed for effectively separation process.

3. Dewatering Centrifuge Module – in this hydro excavation waste slurry treatment system, a decanter centrifuge (bowl diameter is 9 inch, 220mm) is used to remove the ultra-fine solids in the slurry. A chemical dosing system can be connected to the dewatering centrifuge to increase the efficiency of the separation.

Welcome to contact us for more detailed information.

GN Solids Control

Kevin Liu

kevin@gnseparation.com

Sludge Vacuum Pump- Professional for Transferring Sludge

The liquid, sludge, and slurry are heavy, thick, and sometimes with big Solids Content, making them difficult to transfer with normal Centrifugal Pump or Sand Pump. And sometimes the fluid is abrasive and corrosive, so it is always a problem to make pump last, or remain cost effective when there is constant maintenance.

The transfer of solids-laden water encountered particularly in mining must be done efficiently and that requires the pump to be powerful, low maintenance and capable of standing up to the possibly aggressive nature of the pumped liquid.

GN Sludge Vcuum Pump, also named as solids transfer pump. It is a pneumatic slurry transfer vacuum pump for liquid, slurry, and solids transfer. With special structure design, it can be used at tough environmental for solids transfer, high working performance and less maintenance. The pump can transfer material with high gravity and high density, solids content max. up to 80%.

The Sludge Vacuum Pump can be widely used for industrial and Municipal Waste, such as sewage treatment plants, cement plants, steel mills, railroads, oil refineries, chemical plants, foundries and power-generating stations.

The discharge is completely customized, so the transferred material can be discharged directly into a containment unit on site or sent via pipeline to kilometers away. There are almost no moving parts on our units, making breakdowns and maintenance a problem for the competition to worry about.

Welcome to contact us, GN Solids Control, sharing with you the working video of the Sludge Vacuum Pump.

Material transfer applications

Waste mud and waste solids discharged from shale shaker, mud cleaner and centrifuge transfer
Mining Industry
Drilling mud transfer
Waste pit cleaning
Hazardous waste recovery
Oil sludge, tank bottoms residual removal and transfer
Barge holdings and vessel bottom clean out
Bulk tank and silo transfer of material
Sand; Course, fine, conventional and frac sand
Diatomaceous earth
Animal waste etc.

Where to Find the Qualified Replacement Shale Shaker Screen with Low Price?

Shale Shaker Screens are widely used for Shale Shakers and Mud Cleaners.

Generally the screens shall be changed every 300~400 working hours, but that depends on the detailed project information. It is a Big Cost for the drilling companies/contractors or Solids Control Companies to purchase Shale Shaker Screens, especially when they buy the Original Screens from those reputable famous brands.

GN Solids Control understands the cost-effective shale shaker screens are very important for the solids control equipment.

So GN keeps researching and developing the best technology for manufacturing the Top Quality shaker screens for our clients. Now one of the major business of GN Solids Control is Shale Shaker Screen, and GN is able to manufacture around 8000 PCs of shaker screens every month. With our distribution network and cost-effective products, GN Shale Shaker Screens are popular around the world.

GN Screen Type
Hook strip flat screen
Steel frame screen
Composite frame screen
Pyramid screen
Hook strip soft screen
And more…

GN Replacement Screen
Original Screen for GN Solids Control shaker
Replacement screen for Derrick Shaker
Replacement Shaker Screen for MI-Swaco Shaker
Replacement Screen for NOV Brandt Shaker
And more……

What API Size Shaker Screen available from GN

D 100 Separation(Micron)	API Screen Number
>1850.0 TO 2180.0	API 10
>780.0 TO 925.0	API 20
> 462.5 TO 550.0	API 35
> 390.0 TO 462.5	API 40
> 275.0 TO 327.5	API 50
> 231.0 TO 275.0	API 60
> 196.0 TO 231.0	API 70
> 165.0 TO 196.0	API 80
> 137.5 TO 165.0	API 100
> 116.5 TO 137.5	API 120
> 98.0 TO 116.5	API 140
> 82.5 TO 98.0	API 170
> 69.0 TO 82.5	API 200
> 58.0 TO 69.0	API 230
> 49.0 TO 58.0	API 270
> 41.5 TO 49.0	API 325

Hereby GN would like to emphasis that we have big stocking in the North American and China Mainland, the clients can receive the screens from us within two months, wherever they are.

Welcome to contact us if you need sample, test report or RFQ.