Desander Desilter

As one of the most professional big bowl decanter centrifuge in China, GN Solids Control recently shipped 2 units of biggest model decanter centrifuge to USA for construction slurry treatment. We can design and produce various size decanter centrifuge from 9 inch to 30 inch bowl with different treating capacity and different applications.

The big bowl size decanter centrifuge with 30 inch( 760mm) bowl, the bowl length is 3328mm, the designed treating capacity is 528 gpm (120 m3/h) for the mud with 20% solids content. The max bowl speed is 2650rpm with max G force 3000G, the typical speed is 2200rpm with typical G force 2060G, the cut point is 2~5 microns. The differential speed is 5~28 rpm, the gearbox torque is 25000 N.M, gearbox ratio is 38:1, the main motor power is 160KW (217HP), the back drive motor power is 90KW (120HP). Considering the cost issue, we also recommend GNLW554EP-VFD for option, the bowl size is 22 inch ( 550 mm) and the bowl length is 91 inch (2310mm), with designed treating capacity 600gpm( 136m3/h) and the typical treating capacity is 480gpm (108m3/h), it can be used as waste water treatment, industrial waste treatment, chemical treatment, dewatering centrifuge and other slurry treatment.

When the user need to treat big volume slurry, and the space and budget is limited, the big bowl big volume centrifuge is the ideal option compared to use several units of small decanter centrifuge.
We will install the decanter centrifuge on the telescopic skid for convenient operation, the chemical dosing unit can be applied to separate ultra fine solids to 1 microns and make the discharged solids drier to meet the disposal standard.
For more information of the big bowl decanter centrifuge, pls contact with GN sales engineer, we can design customized centrifuge solution according to the treated material conditions.

We are going to ship 2 sets of shale shakers and one batch of shaker screens to South America, as the most professional manufacturer of shale shaker and shaker screens in China, GN solids control design and produce 2 panel shale shaker, 3 panel shale shaker and 4 panel shale shaker and dual deck shale shaker with different treating capacity.

We produce the OEM composite material shaker screens for our own shale shaker, we can also produce replacement shaker screens for world famous brand shale shaker, like Swaco Mongoose, Brandt Cobra, Derrick FLC 500, FLC 2000, FSI, KPT, etc. The shaker screens are packed in sea worthy pallet package which is container loading design.
Shale shaker is the most important equipment for solids control system, a good performance shale shaker can reduce the drilling waste volume effectively and reduce the cost of drilling waste management. When installed the hydrocyclones frame on the shale shaker, it will become the mud cleaner, desander cone, desilter cone and underflow shale shaker 3 in 1. By using different numbers desander cone and desilter cone, the treating capacity is different. GNZJ703F-1S8N mud cleaner with 500gpm treating capacity, GNZJ703F-2S12N mud cleaner with 1000gpm treating capacity, GNZJ703F-3S16N mud cleaner with 1500gpm treating capacity.
The order including 2 units of 3 panel linear motion shale shaker, we can also produce dual motion shale shaker with linear motion and progressive elliptical motion for different applications equipped with different vibration motors. The shale shakers are used to treat water based drilling fluids, it can be also used for SOBM and OBM. It can reduce the solids content and protect the centrifugal pump impeller, which will be easily damaged if the solids content is too high. The mud engineer will use different mesh shaker screens according to the drilling fluids conditions.

As the most professional shale shakers manufacturer in China, recently we shipped several units of shale shakers to our client for their repeat order. 4 sets of shale shakers are shipped to Asia client, 2 sets of shale shakers are shipped to South America. All of these shale shaker are with same model GNZS703F-SHBF.The technical features of the shale shaker are as below:

1) 3 panel screen, the shaker screen dimension is 700x 1250mm,composite material frame shaker screen , total screen area is 2.73m2
2) 2 ea of 1.72KW vibration motor, Italy Oil brand
3) 4 sides pretensioned shale shaker screen with heat press for longer working life and better separation performance

4) Heat treatment on complete shale shaker deck for High G force operation, G force is up to 7.5G which is adjustable
5) Shale shaker bottom deck made from Stainless Steel for long service life
6) Patent tighten rubber sealing for shale shaker deck and screen, long life and easy replacement.
7) Locking wedge to fix the shaker screen for fast screen replacement
8) Patent shale shaker deck angle adjustable while working, mechanical deck angle adjustment with reliable performance., deck adjustment angle is -1°~+5°
9) Feeding type: Weir Feede

Except for shale shaker, the client also order the shaker screens for stock. We can produce shaker screens comply with API RP13C from API 20 to API 300.We use 3 layers wire mesh for all the screens over API 60, and the wire mesh is from famous supplier SS316L.
If you need 4 panel shale shaker, 2 panel shale shaker, dual deck shale shaker, tandem shale shaker, triple shale shaker and dual motion shale shaker, pls contact with GN sales engineer. We also produce replacement shaker screens for other brand shale shaker, like Mongoose, Brandt Cobra, Derrick, FSI, Kemtron.

Recently we shipped solids vacuum pump to Africa client, the model is portable design GNSP-10B vacuum pump, it is the most popular model because of its compact design, it is easily to be installed and put into the oil tank and other tanks, GN vacuum pump can be also disassembled easily to be installed in the tank bottom and assembly again in the tank.

The solids vacuum pump can be used to transfer not only sludge, but also for animal waste, oil sludge, drilling waste, drilling fluids, chemicals, sand, oil contaminated soils, dredging sludge, mining slurry, waste water, cements and other powder materials.
It is 100% air operation pump without electricity power supply,

The client only need to prepare the suction pipe, discharge pipe and the air compressor.
The air supply demand and pressure required is as below:
For GNSP-40B, 17m3/min( 600CFM) , 80 ~114 PSI
For GNSP-20B, 8m3/min( 280CFM), 80 ~100 PSI
For GNSP-10B, 4.3m3/min(150CFM), 80 ~100 PSI

Why use GN solids vacuum pump instead of other pumps?
1) GN solids vacuum pump is air operation, no need electricity power, it is suitable for the area without electricity and hazardous area.
2) The max solids size is 75mm for GNSP40B and 50mm for GNSP-20B & GNSP10B, it is suitable to transfer the big solids without filter required.
3) Compact design, GNSP10B & GNSP20B are both made as portable structure, GNSP40B is also designed for easy transportation.
4) Powerful suction and discharge, the suction distance is up to 50m, the discharge distance ( horizontal) is up to 500m for GNSP-20B & GNSP10B, the discharge distance is up to 1000m for GNSP40B. The vertical lift height depends on the material, we will send the standard question list to know all the information and judge the possibility to use the vacuum pump.

As the offshore mud tank system manufacturer in China, we can design customized mud tank system for onshore and offshore drilling.
Recently we shipped one set of offshore mud tank system to our client, it consist of one unit of shale shaker, one unit of mud cleaner, one unit of decanter centrifuge , one unit of submersible slurry pump as feeding pump of decanter centrifuge, 2 units of centrifugal pump as feeding pump of mud cleaner desander cone and desilter cone. The shaker screen size of shale shaker and mud cleaner underflow shale shaker is same for easy stock of shaker screens, the composite material shaker screens is proved with at least 20% longer working life than the steel frame shale shaker.

Shale shaker is the first phase cleaning equipment to separate coarse solids and reduce the solids content, the performance of the shale shaker is better, the drilling waste is less, the working life of the desander cone is longer, the working life of centrifugal pump is longer.
The desander cone is the second phase cleaning equipment to separate cut point over 75 microns.
The desilter cone is the third phase cleaning equipment to separate solids cut point over 25 microns.

The decanter centrifuge is the fourth phase cleaning equipment to separate the fine solids cut point 2~5 microns. Features of GN decanter centrifuge:
1) Bowl material is made of duplex stainless steel 2205 or 2304 by centrifugal casting, the screw is made of stainless steel by heat treatment up to 1000 degree, the opening propeller design increase the treating capacity.
2) The solids discharge port and fluids distribution port is protected by tungsten alloy, the screw impeller is protected by tungsten carbide tiles, the scraper and side scraper is also installed to protect the solids discharge port and bowl.
3) The collection box is made of stainless steel material for better abrasion resistence.

This week all of GN employees participate in 2019 GN Tourism Culture Festival in Qinhuangdao city in Fisher Island. This is to celebrate the successful business in the first half year in 2019, both of the domestic business and international business has increased a lot compared with last year. The whole team enjoyed a wonderful vacation and the tourist culture festival has improve the cohesion of the team for better team work in the future cooperation. We appreciate the beautiful scenery and comfortable environment very much.

Since GN solids control start from 2007, we keep improving the product design and quality and performance according to our client’s feedback, we pay more attention for our client’s feedback and to make it more and more user friendly. Until now our vertical cuttings dryer is already the 5th generation as E version, the decanter centrifuge is the 4th generation with D version, the shale shaker and mud cleaner is the 6th generation with F or G version. This made us more and more competitive to face international competitors, even though they start earlier than Chinese supplier for solids control and drilling waste management industry, but we are still trying to catch up the trend and improve us.

Our major and competitive equipments equipments line including:
shale shaker ( linear motion, dual motion), mud cleaner (with different qty desander cone and desilter cone), decanter centrifuge ( 9 inch bow, 14 inch bowl, 18 inch bowl, 22 inch bowl and 30 inch bowl, VFD drived or fixed speed control panel drived or full hydraulic drived, the ratio with 3 or 4 for different application), vertical cuttings dryer, vacuum degasser, vacuum pump, centrifugal pump, submersible slurry pump, mud agitator, mud tank and complete package of solids control system, drilling waste management system and oil sludge treatment system.

As the professional manufacturer of containerized drilling waste management system in China, GN solids control recently shipped 2 units of drilling waste management system to Russia clients for their repeat order. This is our standard containerized drilling waste management system for Russia area with cold weather in China.

For the clients in other countries with normal temperature, GNCM-40A drilling waste management system is the most popular model, the configuration is as below:
1 unit of rated speed vertical cuttings dryer installed on the skid, 1 unit of VFD decanter centrifuge installed on the telescopic skid, 1 unit of feeding pump installed on the skid, intermediate tank on the skid for storage of the vertical cutting dryer discharged fluids, and the feed pump will feed the fluids from the intermediate tank to the decanter centrifuge for further treatment, all the equipments are installed on one skid for convenient transportation.

The containerized drilling waste management system is with similar configuration, just considering the low operation temperature in Russia, we use a standard 40ft container to ensure all the equipments working in warm area, otherwise the user has to stop working during the long winter.

The screw conveyor is used to transfer the discharged solids from the vertical G dryer discharge port to cuttings collection box. Also there is skip to collect the discharged solids from decanter centrifuge. The screw conveyor also collect the drilling cuttings from the shale shaker and transfer the drilling cuttings to the vertical cuttings dryer. The length of the screw conveyor is customized according to the rig site layout, the standard length for each section is 12ft, we have option for 1 section, 2 sections, 3 sections and 4 sections. We can also make customized length accordingly.
For more information, pls contact with GN solids control sales engineer.

As professional manufacturer of Oil tank bottom sludge separation system, we have one set of oil sludge separation system ready for shipment to Domestic client. If you are willing to check the complete package equipments and the quality, pls visit our facility in Beijing, China.

The working process of the oil sludge separation system:
1) Coarse solids separation modular: with one unit of high G force drying shaker with adjustable G force up to 7.5G, 1mm or 2mm opening screens are installed on the shaker to separate the coarse solids, it is quipped with internal spraying system and sealing cover to prevent oil sludge spilling. The mud tank under the shale shaker is with internal heating lines to heat and mix the oil sludge so that it will be easier to be treated by decanter centrifuge.
2) Decanter centrifuge modular: one unit of VFD decanter centrifuge installed on the mud tank with heating lines, mud tank accessories, The positive progressive displacement pump as feeding pump of decanter centrifuge , the feeding pump feed the oil sludge from shale shaker tank to decanter centrifuge to separate the fine solids cut point 2~5 microns. The mud agitator mixed the oil sludge after treatment and it will flow to the inclined plate clarifier to separate the ultra fine solids before oil water separator.

3) Inclined plate clarifier: It is used to separate the ultra fine solids from the oil water mixture.
4) Oil water separator: to separate oil and water, the pure oil will be pumped to oil tank, the recovered water will be pumped to water storage tank and it can be reused for circulation or hot water for heating.
We have standard oil sludge separation system with 1m3/h, 5m5/h and 15m3/h for option, for more information, pls contact with GN solids control.

As the most professional manufacturer of decanter centrifuge and shale shaker in China, GN solids control recently shipped one batch of solids control equipments to USA client. The client can make the accessories locally to save import cost and freight cost, such as shale shaker mud tank or catch tank, decanter centrifuge feeding pump and telescopic skid, etc. We have warehouse and after sales service team in USA locally to support the project.
The shale shaker is the first phase cleaning equipments for separation of solids from drilling fluids, the fluids dropped down into the mud tank, then the feeding pump of decanter centrifuge will feed the fluids to decanter centrifuge to separate the fine solids from the fluids, so the discharged clean fluids can be recovered and reused to prepare for new drilling fluids, by using the chemical dosing system together, the user can separate the ultra fine solids up to 1 microns, then the remained water can be clean enough to be sent to waste water treatment facility.

The big bowl decanter centrifuge with big treating capacity is the ideal option to be used with dewatering unit, once adding the chemicals, the treating capacity will be reduced a lot according to the density and viscosity of the materials, if the client need higher output, the big bowl decanter centrifuge with 18 inch, 22 inch and 30 inch bowl diameter. The bowl material is made of duplex stainless steel 2205 or 2304 for better corrosion resistence, the screw is completed made of stainless steel and heat treatment up to 1000 degree, the open design of the impeller can increase the treating capacity. The collection box is also made by stainless steel for longer working life. The bearing is SKF brand for better performance.
Welcome to contact with GN solids control for more details.

Recently we shipped one set of slurry recycling system for China client with the equipment list as below:

1. Linear motion shale shaker GNZS703 with 3 panels composite material frame shaker screens, the 2 Italy Oli vibration motors, each with 2.3HP, and the motor and control panel is explosion proof standard, the shaker deck bottom material is stainless steel material. The total screen area is 2.73 m2.
2. The desander with bottom shaker for drying the discharged solids, 2 ea of 10 inch desander cone installed on the same model shale shaker, this is a 2 phase searation desander, the hydrocyclones with steel material cover outside and inside material is PU material, the shaker screen is same size with the shale shaker, the user can stock the shaker screens with only one size.
4. The mud agitator, mud gun installed on the mud tank to agitate the slurry in case that the solids will accumnulate in the tank bottom.
5. The submersible slurry pump is installed on the mud tank to feed the slurry to desander cone, it do not need so much space to install it.
6. The trip pump and mud mixing pump installed on the skid to provide power to the mixing hopper and mud gun.
7. The venturi hopper to mix chemicals with the slurry to prepare for new fluids by working with mixing pump. The new drilling fluids can be reused or the clean fluids can be reused directly without mixing if necessary.
8. Mud tank with handrails, walkways, stairs, pipelines, lightings, electric control system.
   Application of mud recycling system:
   HDD, CBM, TBM, Pilings, dredging slurry separation system, mining slurry separation, oil and gas drilling solids control system
   If the client have particular requirement for their projects, we can provide customized solution for our clients. Welcome to contact with GN solids control.