Slurry separation plant

GN Solids Control makes various separation productions for the treatment of oil contaminated waste during drilling, like oil sludge and contaminated soil. GN Solids Control is also capable to make various sizes of dewatering centrifuges for oily sludge and industry waste water treatment.

A dewatering centrifuge unit will be delivered to a Southeast Asia client for Municipal Sewage treatment. The dewatering centrifuge package is including a high speed decanter centrifuge unit and a VFD control panel for the centrifuge.

The dewatering decanter centrifuge is with big bowl and high speed, high G force. It is special designed to suit for municipal sewage treatment. The bowl diamater of the dewatering centrifuge is up to 450mm (18 inch), and the bowl length is up to 1890mm (74.5 inch). The bowl length and bowl diameter ratio is up to 4.2 to clarify the liquid and further drying the solids phase. The max. Speed of the 18 inch dewatering centrifuge is 4000RPM, which can generate max. G force 4032G.

The 18 inch dewatering centrifuge is a dual motor unit. According to different material situation, clients have 2 options on the motors power. In condition of heavy mud and high viscosity, 45kw main motor drive and 11kw back motor drive will be used. But if the slurry is low viscosity and light weight, less solids content, clients can choose 37kw main motor drive and 7.5kw back motor drive. It saves cost and also save power. Like for municipal sewage treatment, mostly the liquid is not weight, and less viscosity, 37kw main motor drive and 7.5kw back motor drive can be used.

For the same bowl size 18inch decanter centrifuge, GN Solids Control has different design to cater for the slurry situation. Before order, GN centrifuge engineer will communicate more about the raw material situation and clients’ request in order to offer the clients a most suitable proposal.

VFD Control Panel of the decanter centrifuge is made from stainless steel for excellent corrosion resistance and long service life. The VFD control panel is with PLC and touch screen for smart control.

GNSB Series Centrifugal pump is a very common device used at drilling mud solids control system. GNSB Series Centrifugal pump can be used for oil field drilling mud system, HDD and CBM drilling mud recycling system, piling and micro tunneling desanding plant. GN Solids Control is a professional manufacturer of centrifugal pump in China.

GN Solids Control makes and supply centrifugal pump for solids control system. There is a wide range of applications of centrifugal pump in various applications drilling mud system. Below are some of the applications we normal use.

1. GNSB Series Centrifugal pump can be used as trip pump in the trip tank of the oil and gas drilling mud system. Trip tank is normally the first tank compartment inside drilling mud solids control system. The tank volume of trip tank is not big. It can be a separate smaller size tank other other tanks in the solids control system. It can also a compartment divided from shale shaker tank. Centrifugal pump size 3×2 or 4×3 are mostly used as trip tank trip pump.

2. GNSB Series Centrifugal pump can be used as feed pump for desander, desilter, mud cleaner. The pump transfer capacity should be matching the handling capacity of desander, desilter and mud cleaner. It can be a little big higher than the separation equipment, but it cannot be too much high. And the centrifugal pump transfer capacity cannot be lower than the separation equipment.

3. GNSB Series Centrifugal pump can be used as mixing pump of jet mud mixer and mixing unit. While add a T-pipe at the outlet of the mixing pump, the same pump can also be used as transfer pump.

4. GNSB Series Centrifugal pump can be used as transfer pump to transfer drilling mud or other slurries from one tank to another, or from one location to another.

5. GNSB Series Centrifugal pump can be used as suction or supercharging pump for drilling rig mud pump.

All GN model centrifugal pump use tungsten carbide mechanical seal, with international famous brand Bearing. And spare parts interchangeable with most of the international Brand pump which helps customer to source spare parts easily. Open impeller design that lowers axial thrust loads, and make it easier for installation, repair and maintenance.

 

Oil sludge treatment, oil base mud and drill cuttings treatment is the major product made by GN Solids Control. Some clients do not know the difference of Oil sludge treatment system and oil base cuttings treatment system. They want to know the difference and know how to choose the right separation equipment.

Normally for OBM cuttings treatment, clients will separate cuttings and recover usable drilling fluids, and sell the drilling fluids. It is 2-phase separation. While for oil sludge treatment, clients will separate oil, water and solids. They do 3-phase separation.

Below are some general information to let clients know more about the different and about the equipment choosing.

1) As 3-phase centrifuge can only allow slurry with max. 10% solids content and particle size less than 2mm, 2-phase decanter centrifuge is must to be used before 3-phase separation to reduce the mud weight and solids percentage. After 2-phase centrifuge separation, the oil, water and soil mixture slurry flow into 3-phase decanter centrifuge to get oil, water and soil.

2) In order to remove as more ultra fine solids as possible, chemical dosing unit will be used together with decanter centrifuges for dewantering flocculation treatment. We quote you the 3-tank antomatic chemical dosing unit. It is used for powder chemicals. If you will use liquid chemical, pls tell me to revise the quotation.

3) Per our communication on Whatsapp. The pre-separation equipment for OBM cuttings and oil sludge is different. For pure OBM cuttings from shale shaker and mud cleaner, Vertical cuttings dryer is better. It can reduce the oil on the cuttings to 3% ~ 5%. It can remove more usable liquid. And the solids discharge is very dry.

But vertical cuttings dryer cannot be used to treat the soil sludge discharged from centrifuge. As its screen basket opening is 0.5mm, 0.35mm and min. 0.25mm. The soil cake from centrifuge is very fine and will all pass the screen opening.

4) Oil sludge is normally the mixture from different application, like drilling mud, drilling cuttings, soil cake from centrifuge separation, tank bottom slurry, slope oil, refinery waste oil slurry, industry waste oil, etc… The solids size and solids content is more complex. In this case, high G drying shaker is used for pre-seperation. And as the oil slurry is more complex, sometime, need to dilute and heating the sludge before separation. The solids waste discharge from High G drying shaker is with higher oil on the cuttings after separation. For example, before treatment the sludge with 15~20% oil content. After high G drying shaker, maybe around 10~15%, or even higher if the sludge with high viscosity and density.

GN Solids Control has an oil sludge treatment system which is used at Qinghai Oilfield in China. The system is used since May 2018 till now. It is a customized oil sludge waste reduction system. Clients are happy with its performance.

Many clients are showed great interest on the system, below is some information of the system to let people know more.

1.The system is used since May 2018 till now, the location is Qinghai Oilfield in China.

2.The liquid content of the raw material oil sludge is 70% – 80%.

3.There is a pre-mixing and heating modular in the oil sludge separation system. Oil sludge will be heated up to 60C degree, during the heating process, chemicals will be enhanced into the process procedure to help for separation. The chemical enhancing is based on the material situation. If the material is easy for separation, heating and chemical dosing may be not needed. It depends on the separation result.

4.There is a double deck drying shale shaker in the customized system for pre-separation. After shale shaker, there is a desander separator.

5.After desander mud cleaner, it is decanter centrifuge separation by an 18inch big bowl centrifuge. There are 2 sets GNLW453C-VFD centrifuge for ultra fine solids separation.

6.There are 2 types of sludge vacuum pump for sludge and slurry transfer in the system: GNSP20B and GNSP40B.

7.The system for the client is 2-phase separation. After separation, clients get clean oil slurry with small percentage ultra fine soil. The oil slurry recovered from GN oil sludge system will be further treated by slurry separation system to get oil and water. The final solid waste is taken to third party the biodegradation and pyrolysis company for processing.

GN Solids Control can also offer 3 phase separation after the 2 phase centrifuge sepration to get clean oil, water and solids.

Big bowl decanter centrifuge is a major separation equipment for oil sludge treatment. GN Solids Control makes 2-phase decanter centrifuge for liquid and solids separation, and 3-phase decanter centrifuge for water, oil and solids separation. The centrifuge bowl sizes are vary from mini size 9 inch to big bowl 22 inch size and the largest big bowl 30 inch.

Last week, some sets of GNLW554ET- VFD decanter centrifuge were shipped to an clients doing oil sludge treatment. GN Solids Control makes T Series Decanter Centrifuge mainly for dewatering treatment and for thickness.

GN T series decanter centrifuge for dewatering / Thickening is with beach angle of 8.5 degree. It is widely used for maximum dewatering requirements of municipal and industrial waste water sludge. The dewatering decanter centrifuge is designed for easy separation material include large particle size, high density difference of solid and liquid, low viscosity, high concentration, high treatment capacity and higher dryness than clarity. The materials like sludge or wastewater containing fine particles usually need to be added with flocculants to gather the fine particles condensed into large ones, and then dewatered with T series decanter centrifuge.

Applicable Material of GN Solids Control T Series Decanter Centrifuge can be used to treat below materials, but not only limited to them: Drilling mud, environmental protection sewage, oily sludge, cutting fluid, sand washing water, mineral washing water, soda white mud, salt mud dewatering, magnesium aluminum emulsion, steel-making waste water, precision casting waste water, construction mud, tunnel mud, mine waste water, industrial waste water, organic waste water, aquaculture waste water, chemical industrial waste water, printing and dyeing waste water, municipal sewage, river sludge, water plant sludge, lake sludge, kaolin grading, calcium carbonate, bentonite, Silica, titanium dioxide, calcium sulfate, barium sulfate, conductive film glass polishing solution, aluminum hydroxide, cryolite, silicate, oil sand separation, landing oil, oil sludge, coal tar, inorganic fertilizer, Chinese medicine extraction such as taxus chinensis, honeysuckle and liquorice, clarification, concentration and dehydration of salt crystals, etc

The most popular bowl size used for oil sludge separation is 9 inch, 14 inch and 22 inch decanter centrifuge. For the 3 bowl sizes, GN Solids Control has 2 model series to suit for different material situation. The 2 model series are defined per the ratio of bowl length and bowl diameter. GNLW223, GNLW224, GNLW363, GNLW364, GNLW553, GNLW554.

Regarding the 3 bowl diameter 9 inch, 14 inch and 22 inch decanter centrifuge, the ratio of bowl length and bowl diameter can be 3 or 4. The ratio 3 serials decanter centrifuge can be used for oil and gas drilling fluids treatment. The ratio 4 decanter centrifuge is specially designed for oil sludge treatment and waste water, waste oil treatment.

GN Solids Control made a small liquid and solids separation system. The small system is customized for an Europe company per clients request. The client asked for a small recycling unit with cleaning capacity of about 12-15 m³ / hour. The client wants a small single centrifuge in the small recycling system.

GN Solids Control customized a compact system which is composed of a small size shale shaker and a mini size decanter centrifuge. The shale shaker and decanter centrifuge are located on a mud tank together with a centrifuge feeding pump and electric control cabinet for the whole system. Tank size for the whole system is 3900Lx2250Wx1300H (mm) for easy movement. It is a small capacity recycling system with turn-key solution. All connections inside the system are included.

The Shale shaker separator model is GNZS752F-MDZF. It is a 2-panel small size shale shaker with small footprint.

The Decanter centrifuge model is GNLW223D-VFD. It is a 9” baby centrifuge for fine solids separation. The Cut point of GNLW223D-VFD centrifuge is 2 ~ 5 microns.

The color, brand and logo are all customized per client’s request. GN Solids Control is capable to make other customized system per clients job site situation. Clients can contact GN Solids Control sales engineer to get customized solutions.

Besides the small mud recycling system, GN Solids Control makes various sizes of Mud Recycling System for HDD, water well drilling, Trenchless, Piling and TBM activities.

The major applications of GN mud recycling system covers below field, but not only limited to below:
1) Trenchless HDD Project
2) Bored Pile Project
3) Micro TBM (Tunnel Boring Machine)
4) Diamond Drilling, Water Well Drilling etc

Below are some Mud Recycling desanding plant Models GN can make:
D Series Mud Recycling Models:
1)GNMS-200D Capacity: 200GPM, 50m3/h
2)GNMS-500D Capacity: 500GPM, 120m3/h
3)GNMS-1000D Capacity: 1000GPM, 240m3/h
4)Other models should be customized per clients’ request

GN Solids Control is a professional manufacturer to make different sizes Solids Removal Variable Speed Centrifuge includes stand, feed pump and connecting hoses, and other processing equipment and accessory processing equipment before and after decanter centrifuge.

GN Solids Control makes Variable speed from 0 up to 4,000 RPM per different models. GN Solids Control is capacity to make both VFD control decanter centrifuge and full hydraulic drive (FHD) decanter centrifuge per meet clients’ request.
GN Solids Control brand decanter centrifuge is designed with high G-force to get a better separation performance.

GN Solids Control has big bowl decanter centrifuge vary from 18 inch to 22 inch, and max. to 30 inch for big fluid processing rate. In the world, few companies have the capability to make big bowl decanter centrifuge up to 30 inch. GN Solids Control is one of them who have the abilities.
GNLW553 VFD decanter centrifuge is a 22 inch bowl decanter.
GNLW453 VFD decanter centrifuge is a 18 inch decanter.
GNLW363 VFD decanter centrifuge is a 14 inch decanter.
Roughly, for the same conditions, 1 set 22inch decanter = 2 x 14 inch decanter centrifuge.

And 1 set 18 inch decanter = 1.4 x 14 inch decanter. The operators cannot expect to use an 18 inch decanter centrifuge to replace 2 x 14 inch decanter or to replace a 22 inch decanter.

GN Solids Control 14 inch, 18 inch and 22 inch decanter centrifuge can all be used for heavy mud solids control. And also some clients want to use the decanter centrifuge for different applications like for barite recovery, HGS (high gravity solids), LGS (low gravity solids), waste management, and dewatering treatment, or other different applications, the centrifuge features are not all the same. When GN Solids Control makes the design for standard models, GN Solids Control need to balance the performance for all the situations. If clients have fixed applications with the centrifuge, suggest clients to share the information to GN Solids Control sales engineer before order to get and best solution to suit for the projects and maximized the separation performance.

 

GN Solids Control is a professional manufacturer for desanding plant, slurry separation system, and mixing tank system for trenchless machine, like for HDD, TBM, piling, tunneling, water well drilling, etc…

GN Solids Control makes different sizes desanding plant and slurry separation system. For the popular separation system models, GN Solids Control keeps stock for fast delivery.

GN Solids Control desanding plant and slurry separation system includes but not limited to below models based on the treating capacity:

1. GNMS-500D desanding plant. Its handling capacity is 120 m³/h (500GPM).
1. GNMS-1000D desanding plant. Its handling capacity is 240 m³/h (1000GPM).
3. GNTBM-240 (240m3/h)
4. GNTBM-360 (360m3/h)
5. GNTBM-500 (500m3/h)
6. GNTBM-800 (800m3/h): it is combined of a GNTBM-360 and a GNTBM500 slurry separation system
7. GNTBM-1000 (1000m3/h): it is combined of a GNTBM500 and a GNTBM500 slurry separation system
8. GNTBM-1500(1500m3/h): it is combined of 3 sets of GNTBM500
9. GNTBM-2000(2000m3/h): it is combined of 4 sets of GNTBM500
10. GNTBM-2500(2500m3/h): it is combined of a 5 sets of GNTBM500
11. GNTBM-3000(3000m3/h): it is combined of a 6 sets of GNTBM500

In some cases, if the job site country does not have strict request for waste water discharge and for environment protection, clients do not use separation system trenchless machines. They only use mud mixing tank system. GN Solids Control makes different sizes compact design mixing tank system for different trenchless machine:

1. GNMX-05A: usable capacity of the mixing tank system is 5m3 / h; a hopper and a 11KW centrifugal pump is used in the system for mixing. There is a T-pipe at the outlet pipe of mixing pump. In this case, the mixing pump can also be used as transfer pump to feed mud from mixing tank to HDD or trenchless machine

2. GNMX-10A: usable capacity of the mixing tank system is 10m3 / h; a hopper and a 22KW centrifugal pump is used in the system for mixing. There is a T-pipe at the outlet pipe of mixing pump. In this case, the mixing pump can also be used as transfer pump to feed mud from mixing tank to HDD or trenchless machine

3. GNMX-15A: usable capacity of the mixing tank system is 15m3 / h; a hopper and a 30KW centrifugal pump is used in the system for mixing. There is a T-pipe at the outlet pipe of mixing pump. In this case, the mixing pump can also be used as transfer pump to feed mud from mixing tank to HDD or trenchless machine

4. GNMX-20A: usable capacity of the mixing tank system is 20m3 / h; a hopper and a 37KW centrifugal pump is used in the system for mixing. There is a T-pipe at the outlet pipe of mixing pump. In this case, the mixing pump can also be used as transfer pump to feed mud from mixing tank to HDD or trenchless machine

Recently, a mud cleaning shale shaker, mud cleaner, and decanter centrifuge started to work at an Environmental Protection Company in U.S.A. The Environmental Protection Company in U.S.A. is to collect waste water and waste slurry from different activities, like from drilling, from construction job sites, etc… The company will treat the waste slurry, and cover the water and oil for reuse or resell. The recovered solids, cuttings and particles can be sold again to construction company for building construction, or to build roads.

Below separation equipment in included in the mud cleaning job site for the USA Environmental Protection Company.
The 1st mud cleaning equipment is a Shale Shaker. It is a 4-panel shale shaker utilizing composite material pretension shaker screen. The shale shaker model is GNZS594-HB. It is the most hot sale shale shaker model from GN Solids Control. The shale shaker is widely used in oil and gas drilling, non-oil drilling, and waste slurry separation.

The 2nd stage separation equipment is a 3-in-1 mud cleaner. The mud cleaner model is GNZJ594-2S12N. The 3-in-1 mud cleaner separator is combined of a shale shaker, above the shale shaker, there is a package of desander cone, and a package of desilter cone. The desander and desilter packing are used on top of the under flow shale shaker. The recovered slurry from desander and desilter falls down to the under flow shale shaker, and recovered by the shaker screens which with fine wire mesh. The desander separation is 10 inch which is with cut point 47 microns. The slurry recovered from desander separator will be pumped to desilter separation. The cut point of desilter separator is 27 microns, which is used to further purify the recovered slurry. After desilter separator, the weight of the slurry can be reduced, the solids content is smaller. And the solids size in the slurry is qualified for high speed decanter centrifuge separation.

A high speed big bowl decanter centrifuge GNLW553-VFD is used after mud cleaner separator to remove the ultrafine solids up to 2 microns.

TBM is short for Tunnel Boring Machine. It is also known as a “mole”. It is a construction field drilling machine used to excavate tunnels and micro-tunneling with a circular cross section through a variety of soil and rock strata. They can bore through anything from hard rock to sand. Tunnel diameters can range from 1 m to 17.6 m to date. For smaller diameter less than 1m, it is HDD and CBM drilling. The most important part of a tunnel boring machine is its cutter head. Tunnel boring machine (TBM) is widely used today due to their ability to construct tunnels at record speeds.

But as the big diameter of the tunnel, the TBM drilling will generate large quantity waste slurry (mixture of rocks, sand, soil, water and drilling mud). The waste slurry must be treated to recover and reuse water, and reduce the solids phase waste. GN Solids Control makes different sizes of TBM Slurry Separation Plant to cater for different diameter tunneling excavation activities.

GN Solids Control is specialized in full line drilling mud solids control. equipment. All the processing equipment used for TBM Slurry Separation Plant are designed and made by GN Solids Control: the coarse separation shale shaker, desander separator, desilter separator. GN Solids Control is also capacity to make dewatering centrifuge for TBM slurry separation plant form normal size centrifuge to the big bowl and big capacity size.

Below is the popular treating capacity of GN made TBM Slurry Separation Plant models.
1. TBM Slurry Separation Plant model: GNTBM-240M. The treating capacity is 240m3/h.
2. TBM Slurry Separation Plant model: GNTBM-360M. The treating capacity is 360m3/h
3. TBM Slurry Separation Plant model: GNTBM-500M. The treating capacity is 500m3/h
4. TBM Slurry Separation Plant model: GNTBM-1000M. The treating capacity is 1000m3/h

GN Solids Control can also make big capacity TBM slurry separation system: GNTBM-900M (900m³/h), GNTBM-1200M (1200m³/h), GNTBM-1400M (1400m³/h), GNTBM-2000M (2000m³/h), GNTBM-2800M (2800m³/h), GNTBM-3600M (3600m³/h)