Jul 05

Not only for drilling application( oil & gas drilling, HDD, geothermal, CBM, water well drilling), GN equipments can be also used for mining slurry separation, dredging slurry management, piling and tunneling.

Dredging and Dewatering equipments

Dredging and Dewatering equipments

GN dredging and dewatering equipments are designed to feed slurry directly from the dredge. GN dredging slurry separation system separates solids from dredging slurry through a three phase system.

In addition, the solids that are removed are dewatered to a stackable “press filter” state, which can be readily moved with front end loader, conveyor and/or dump trucks. The effluent is pumped off by a centrifugal pump.

The separation process is continuous and operates completely mechanically without any chemical enhancement. The dredging slurry separation system is designed as a three phase separation system, 1st separation is shale shaker, 2nd separation is desander, 3rd separation is desilter. Sometimes as the client’s requirement, we only design 2 phase shale shaker and desander. The desander and desilter are made into separate mud cleaner with large screen area.

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written by GN solids Control \\ tags: , , , , , , , , ,

Jun 23

What is dredging?

Dredging is an excavation activity or operation usually carried out at least partly underwater, in shallow seas or fresh water areas with the purpose of gathering up bottom sediments and disposing of them at a different location. This technique is often used to keep waterways navigable.

Dredging equipments in Colombia

Dredging equipments in Colombia

What is dredger?

dredgers is a piece of equipment which can dig,transport and dump acertain amount of under water laying soil in a certain time.

In a dredging slurry separation project, dredge equipments include but not limit to dredger( dredge boat), dredge pumps, Flocculants mixing tower , slurry concentration tower, belt press filtration, sedimentation tank, dredging slurry separation system(DSS), etc. 

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written by GN solids Control \\ tags: , , , , , ,

Jul 17

What is Dredger?

Simply speaking, Dredger (Also called dredge) isa vessel used for dredging. It is used to excavate and remove material from the bottom of a body of water. For example, a scoop attached to the end of a rope or pole by which a man can draw sediments up from the bottom of a pond is a dredger. Developing this idea further, a motorized crane equipped with a drag bucket or clamshell (grabber) that is used to scoop material from the bottom of a body of water is also a dredger. The crane could be located on the bank, or perhaps mounted on a barge. If the crane is mounted on a barge, the entire vessel is referred to as a dredger.

Dredge slurry separation system

Dredge slurry separation system

What is Dredging?

Dredging is an excavation activity in which materials are recovered from beneath the water’s surface. The purpose is generally to gather bottom sediment and either dispose it at a different location or use these sediments in various products, e.g. sand and gravel is used in concrete mixtures.

GN solids control design and produce dredging slurry separation system, and we cooperate with dredger manufacturer all of the world. Some of our DSS system has worked successfully in the site with dredger.

Here we listed top 5 Dredger manufacturer, welcome to contact us for more updates.

1 IMS Dredges, Division of LWT, LLC( website: http://www.imsdredge.com/),

2 Ellicott® Dredges

3 Crisafulli Dredges(www.crisafulli.com)

4 VMI Dredger, to see How do VMI dredges work, pls check http://www.vmi-dredges.com/how-dredges-work.htm

5 DSC Dredge(http://www.dscdredge.com/)

If you need dredger and dredge slurry separation system, pls contact GN solids control.

written by GN solids Control \\ tags: , , , , , ,

May 19

What is dredging?

Dredgingis an excavation activity or operation usually carried out at least partly underwater, in shallow seas or fresh water areas with the purpose of gathering up bottom sediments and disposing of them at a different location.

dredging Slurry Separation System

dredging Slurry Separation System

A dredge is a device for scraping or sucking the seabed, used for dredging. A dredger is a ship or boat equipped with a dredge.

The process of dredging creates spoils (excess material), which are carried away from the dredged area. Dredging can produce materials for land reclamation or other purposes (usually construction-related).

GN 1000gpm Dredging slurry separation system:

As mentioned above, dredging will creates excess material, for example. Stones, sand, masses,cuttings, etc, For the purpose of environment protection, we need to separate the real trash and get the usable material for construction-related industry. GN dredging slurry separation system(also called dredging dewatering system) will be a good unit for such application. GN standard 1000gpm DSS system has been widely used for dredging.in domestic and abroad. If you need a 2000gpm DSS system,we suggest you to buy 2 sets of 1000gpm unit, it is convenient to ship it by container and truck on the road.

1000gpm DSS: total power 130KW

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written by GN solids Control \\ tags: , , , , ,

Oct 26

After dredging work, we should separate the slurry, for envioment friendly or other purpose. GN FL 1000 is one perfect system for about 3000 gpm capacity. We will take this for example to introduce How the slurry separation work.

How the Slurry Separation WorkFL 1000 slurry separation

1. Entry: the dredged slurry enters the shale shaker directly from the dredge. In GN FL 1000, the slurry enters into the GNZS 83-3 shale shaker, (5 pcs)
2. Shale Shaker: there are 5 GNZS 83-3 shale shakers in FL 1000, treating capacity is 3000 gpm. With the proper shaker screen, the debris like grass, roots, leaves, cans, plastic, rags, and bottles can be separated, then the slurry to the next stage is in conditon that the biggest particles is 47-76um.
3. Desanding tank: The slurry going through the shale shaker, and drop into a tank, where it is picked up by a centrifugal pump.
4. De-sanding and De-silting: the pump, means SB 8*6*14 centrifugal pump moves the slurry to the second phase. Then it passs the desanding hydro-cyclones, to the desilting tank. Then the slurry will be pumped again to the desilting hydrocyclones. Dropped into another process tank. Until now the debris bigger than 20um (15-47um) are separated. Equipments referred is ZQJ 250 desander, and ZQJ 100 desilter. Continue reading »

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