Desander Desilter

The decanter centrifuges and centrifugal pump are ready for shipment to Russia, the decanter centrifuge can be used to treat drilling fluids for separation of low gravity solids and barite recovery. It can be also used as dewatering centrifuge with chemical dosing system, oil sludge separation decanter centrifuge in the oil sludge treatment system, and waste water treatment system to get pure water, and all the other solids & liquid separation application.

Features of GN decanter centrifuge:
1) Bowl straight cone is made of duplex stainless steel 2304/ 2205 which is much better than SS316L and SS304. The cone and other components is made of stainless steel 316L.
2) The screw is made of SS304 by centrifugal casting with heat treatment up to 1000 degree, the impeller is protected by tungsten carbide tiles, it is repairable and interchangeable. The open type design on the impeller will increase the treating capacity and improve the efficiency.
3) The bearing is made of SKF brand brearing for reliable working life.
4) The solids discharge port and fluids distribution port are both protected by tungsten alloy and it is interchangeable.
5) The collection box is made of stainless steel.
6) 2 motors-main motor and back drive motor are installed on one side for easy operation.
7) If required by client, we will provide positive pressurized VFD control panel with 3 motor VFD to provide variable speed drive. We provide CNEX, ATEX and IEC EX approved for option.

The centrifugal pump can be widely used for drilling fluids transfer, charging pump of mud pump, trip pump of trip tank, feeding pump of desander, desilter, mixing pump.
Except for decanter centrifuge and centrifugal pump, we also produce desander, desilter, vacuum degasser, centrifugal degasser, shale shaker, mud cleaner, shaker screens, mud gas separator and drilling waste management equipments.

Recently 2 package of triple shale shaker and mud cleaner set are ready for shipment, they are for SOBM & OBM separation, to make 3 units shale shaker on the same skid is for convenient transportation. Shale shaker is the first phase cleaning equipment, desander cone is the second phase cleaning equipment, desilter cone is third phase cleaning equipment, mud cleaner is the combination of desander cone, desilter cone and bottom shaker 3 in 1. The bottom shale shaker model is same with the tripe shale shaker, the screen size and model is same 585x1165mm, 4pcs screen panel.
The technical specification of the shale shaker is as below:

1) Dual vibration mode, linear motion and progressive elliptical, the user can adjust the vibration mode in the starter, when Linear motion is on, the max treating capacity is 140m3/h, the max G force is 7.6G, the Vibration Amplitude is 4.14~6.12mm ,when progressive elliptical motion is on, the treating capacity is 100m3/h, the G force is 5.7G, , the Vibration Amplitude is 6.39~9.18mm.
2) The vibration motor brand is Itavibras, which is DGMS/ IEC EX/ DGMS certified

3) The starter is ATEX certified, with Cast aluminum Control Cabinet, the electric components are Siemens, Schneider, ABB brand. The internal connection cable and gland is also ATEX approved.
4) The shaker screen is composite material frame shaker screen for longer working life, the effective screen area is 20% larger than the steel frame shaker screens, for API mesh size over API60, 3 layers stainless steel 316L is applied for steadily quality, The storage life is up to 5 years, which is more anti-corrosion material.
5) The possem belly can control the drilling fluids by slide gate to feed to the shale shaker for convenient operation. It can be disassembly easily during shipment and transportation.

GN solids control shipped one set of mud recycling system for domestic client for drilling rig mud cleaning, the technical configuration is as below:
1) 2 sets of 3-panel shale shaker GNZS703F as first phase cleaning equipments with mud distribution box. The screen area is 2.73m2, each screen dimension is 700x1250mm, the screen locking method is by wedge and fixed by ratchet wrench. 2ea of 1.72KW vibration motor drived the shale shaker and provide G force up to 7.5G ( adjustable). The shaker deck bottom material is stainless steel for better corrosion resistant.

2) 1 set of desander GNZJ752-2S as second phase cleaning equipment, with 2ea of 10 inch PU material desander cone. The bottom shaker is 2 panel screens installed composite material shaker screens.
3) 1 set of desilter GNZJ752F-12N as the third phase cleaning equipment, with 12ea of 4 inch PU material desilter cone. The bottom shaker is with 2 panel composite material shaker screen.

4) 1 set of decanter centrifuge GNLW452 as barite recovery centrifuge, the normal operation speed is 1800rpm or 2200rpm. This is the 4th phase cleaning equipment with cut point 5~7 microns. The vertical installed submersible slurry pump as centrifuge feeding pump.
5) 3 sets of mud tanks as trip tank, active tank, intermediate tank, storage tank, mixing tank, the mud agitator and mud gun are installed on the mud tank for agitating the drilling fluids.
6) Mud tank accessories such as high position butterfly valve, drain cleaning gate, pipelines, flexible connector, man hole, walkways, handrails, stairs, hose, flanges, etc.
7) Explosion proof motor and control system to control all the electric motors and lightings.
This is a customized solids control system according to client’s requirement. If you have requirement for drilling fluids & drilling waste treatment solution, pls contact with GN Solid Control.

GN after sales team come back from jobsite in Xinjiang for one set of drilling cuttings treatment system. The configuration is as below:
1) One set of GNCD930E vertical cuttings dryer to treat the oil remained in the cuttings below 5%. The discharged fluids will flow to the intermediate tank and the feed pump will transfer the clean fluids to the decanter centrifuge from the intermediate tank. After treated by GN VCD, the discharged solids can meet the disposal limit for most countries, it can be used for landfill. If not, the discharged solids can be treated by TDU to lower the oil below 1%. The client can use TDU directly for oil based drilling cuttings, but by using drilling waste management system prior to TDU will save power energy and diesel consumption a lot.

2) One set of VFD decanter centrifuge GNLW363C-VFD to separate the fine solids from the discharged fluids, the recovered fluids can be used to prepare for new drilling fluids and to be reused for drilling rig. The discharged solids will be back to the circulation or cuttings box for disposal.
3) One set of centrifuge feed pump and one set of vertical cuttings dryer flushing pump, both of them are installed on the package skid and they are positive displacement pump made by Germany Netzsch. The speed of the screw pump can be controlled in the VFD control panel to control the flow rate of the feeding capacity.

4) One set of GN standard mud tank skid, all the equipments are installed on the tank skid for convenient operation and transportation.
5) 2 sets of screw conveyor to transfer the drilling waste, one set is used to transfer the oil based drilling cuttings to vertical cuttings dryer top feeding port, one set is used to collect the discharge solids and transfer out to other area automatically.

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.