GN Solids Control is leading solids and liquid separation manufacturer. GN whole product line includes shakers, desanders, desilters, decanter centrifuges and cuttings dryers. GN Solids Control provides standard treating system to meet customers urgent demands, while for those customers have special demands, GN Solids Control also provides customized solutions.
Recently, GN Solids Control has received many inquiries on the dredging slurry treating. In the past, GN Solids provided many slurry treating systems with shakers, desanders and desilters. As we know GN desilters are assembled with 4 inch cyclones, they can separate the solids larger than 25 microns. While some other customers have higher demands on the slurry particles, GN Solids Control recommends using decanter centrifuge with flocculent system.
Generally speaking, typical dredging slurry includes 5~20% solids, 0~70% coarse debris (usually larger then 6mm),10~100% sands (diameter is around 0.07~6mm) and finer particles like clays or silts or organics 0~100% (diameter is less than 0.07mm). In order to separate out those finer solids, GN centrifuge is a necessary choice.
Let’s take one GN 350GPM treating system as an example:
1. Double deck shaker
GN double deck shaker is using opening mesh screen on the top deck to separate the large materials out, while the bottom deck shaker is using common composite API shaker screens.
2. Desander
One GN 10 inch desander cyclone is used after the double deck shaker. Desander cyclone to separate the solids larger than 55 microns. One centrifugal pump is also fixed on the tank to feed the cyclone.
3. Flocculent System
GN flocculent system has a compact structure, all the devices are put in one 20ft standard container. Flocculent will be mixed thoroughly with the slurry separated from desander, those slurry is feed into the GN centrifuge by GN screw pump.
4. Decanter Centrifuge
Two sets GN decanter centrifuge GNLW453 are used for treating finer solids. As the flocculent system helps to collect all those finer solids and get larger, they will be easily separated out by GN centrifuge. Due to the increasing of the gravity, the solids percentage is getting bigger, so centrifuge actual working capacity is around 350GPM.
Category Archives: Dual-Deck Shale Shaker
Unbeatable and Ultra-efficient Dual Deck Shale Shaker
As a result of multifunctional requirement, economic and regulatory pressure as well as the small footprint, premium shale shaker must be capable of reducing waste volumes and maximize efficiency. Uniquely GNZS705 dual flat-deck shaker has taken the solids control program to entirely new level of efficiency. GNZS 705 is providing primary solids removal in CBM (Coal bed methane), HDD(Horizontal Directional Drilling) and TBM drilling etc. The robust construction and optimal solids control satisfactory manner of GNZS 705 with pretensioned screens reduces units’ maintenance time, the amount of shale shaker required on location and the need for redundant solids control equipment.
Features and Benefits of GNZS705
1. There are total five panel screens in this dual functional shale shaker. Top deck shale shaker 
is 2 screen panels with small API number screen (10 API shaker screen and 4 API number according to jobsite condition) and bottom deck is 3 screen panel (with larger API number which separates fined solids). The unique design delivery high progress capacity
2. Progressive Liner motion enhances overall solids control efficiency and quickly separate solids of fluids pool
3. International brand Super G vibration motor with CE, ISO and API compliant. And maximum generate drilling cutting and other solids
4. Adjustable deck angel is available from -1°to +5°according to the drilling conditions. Heat treatment of shaker deck and stainless shaker deck is quality assurance
5.Generall, drilling cutting volumes and drilling conditions changes constantly during the course of bottom hole. There, an flexible solids unit plays a vital role in the fluids control. That’s what separates the GNZS 705 shale shaker different from traditional single-deck shale shakers.
6. GN double shaker with desander, desilter ,mud cleaners and decanter centrifuge make up the effective solids control system. GN double deck shaker with hydrocyclones is a multifunctional solids control units for water well, HDD, CBM and TBM drilling.
For you project and dual-deck shaker information, please contact with GN representative.