Desander Desilter

One set of automatic tank cleaning system is ready for shipment in GN solids control yard, The user watch the testing before shipment and they are satisfied with the result.
Why use automatic tank cleaning system? The purpose is to separate the solid from the tank flushing slurry to make the water reusable.

Working principle of GN Automatic Tank Cleaning System:
The tank cleaning system supply fresh water to high pressure tank cleaning machine inside the system, then the pump in the system will bring the dirty water back to the system and return clean water back to the tank cleaning machine to reuse. The whole circulation will minimize the water consumption and power consumption. The circulation process is a continuous process with treating capacity 30m3/h of waste water.

The main configuration is as below:
Tank washing water treating capacity: 30m3/h
Clean water capacity: 7.5m3/h
Power consumption: 40KW
Motor and control panel could be explosion proof for CNEX zone 1 application.

Including sludge vacuum pump, air operation diaphragm pump, high pressure pump.
Including chemical dosing unit with static mixer, the tank washing water adding chemicals to accumulate the ultra fine solids and suspension soil so that it will separate the water more clear and get drier solids.

Including inclined plate clarifier with level meter, the solids settle down rapidly to the bottom of the clarifier. The inclined plate clarifier is installed after the chemical dosing unit, the accumulated solids will be easily settled down, the proper designed process will increase the efficiency of the automatic tank cleaning system.
Considering the marine shipment for international clients, the tank cleaning system is installed on a compact skid which is suitable to be loading into a 40ft container for convenient shipment and economic freight cost. For more information, pls contact with GN solids control.

The 9 inch bowl decanter centrifuge produced by GN solids control is widely used for waste water treatment for many industries, for example, GNLW223 centrifuge for the compact design 1m3/h oil sludge separation unit to separate the fine solids from oil sludge, GNLW223 centrifuge for the solids removal unit to separate the fine solids GNLW224EP-VFD decanter centrifuge with dewatering unit to separate the ultra fine solids from waste water.

The 9 inch bowl centrifuge is the smallest size decanter centrifuge GN produced, we also have 14 inch bowl decanter centrifuge, 18 inch bowl decanter centrifuge, 22 inch bowl decanter centrifuge, 30 inch bowl decanter centrifuge, which are used to separate the fine solids from drilling fluids, drilling cuttings, refinery tank bottom oil sludge, waste oil sludge, industrial waste water, mining tailings, and other chemical mixtures.
The difference between GNLW223 and GNLW224EP-VFD centrifuge:
1) Both of the bowl size is 9 inch, the bowl material is stainless steel 316, and the collection box material is also SS304. The screw material is SS304 by heat treatment up to 1000℃ for longer working life. The screw propeller is protected by the tungsten carbide tiles which is repairable. Same with the big size decanter centrifuge, the solids discharged port and fluids distribution port are both protected by interchangeable tungsten carbide alloy.
2) The bowl length of the GNLW223 centrifuge is 670mm or 26.4 inch, the bowl length of GNLW224EP-VFD centrifuge is 924mm or 36.4 inch, both of these 2 models with 15HP main motor, but GNLW223 series without back drive motor, the GNLW224EP series centrifuge with back drive motor 7.5HP, and the max speed of GNLW223 is 4500rpm, max speed for GNLW224EP is 5000rpm. The gearbox ratio of 223 centrifuge is 35:1, the gearbox ratio of GNLW224EP-VFD is 95:1.
For more details of GN mini centrifuge, pls contact with us freely.

One unit of 5m3/h oil sludge separation system is ready for shipment recently, the model is GNOST-05A. we also have GNOST-01A with 1 m3/h treating capacity, GNOST-15A with 15m3/h treating capacity for option.

As the most professional solids liquid separation equipments manufacturer in China, GN solids control can design and produce drilling mud solids control system, drilling cuttings treatment system, oil sludge treatment system, shaker screens. The oil sludge separation system can be used for refinery crude oil tank bottom cleaning sludge treatment, oilfield waste oil sludge treatment, oil contaminated earth and all other types of oil sludge.
The oil sludge separation system technical configuration is as below:

1) Sludge vacuum pump: this is a 100% air operation pump, no need electricity power supply. It has option for automatic and manual operation, the transfer rate could be 10m3/h, 20 m3/h and 40 m3/h. The max suction distance is up to 500m, and the max discharge distance is up to 1000m.
2) The shale shaker with internal spray system and cover to prevent the oil sludge from splashing to separate the coarse solids from the oil sludge, the shaker screen opening is 1mm or 2mm, the purpose is to protect the centrifuge screw.

3) The VFD decanter centrifuge to separate the fine solids from the oil sludge by working with chemical dosing system. The reason to use chemical jetting is to help the centrifuge to separate the oil from the solids more clean.
4) The 3 phase centrifuge to separate the oil from water, the oil is recovered by the refinery and the water is put into the circulation system. The decanter centrifuge should separate the fine solids as much as possible, otherwise it will block the 3 phase centrifuge.
If you need more information of oil sludge separation system, pls contact with GN solids control.

This week 10 units of VFD decanter centrifuge are shipped to our clients in Middle East, they are IEC EX certified for high configuration. With customized painting color, the centrifuge are also equipped with vibration sensor and temperature sensor to measure the operation temperature increasement and vibration during working.

We can provide decanter centrifuge with CNEX, ATEX OR IEC EX for different requirements of explosion proof, we can also provide different bowl size decanter centrifuge for option, from 9 inch, 14 inch, 18 inch, 22 inch and 30 inch bowl.
We have fixed speed decanter centrifuge and variable speed decanter centrifuge for option for different purpose. VFD decanter centrifuge applications are more widely as dewatering centrifuge, waste water treatment centrifuge, drilling mud cleaning centrifuge, oil sludge separation centrifuge and drilling waste treatment centrifuge, the fixed speed centrifuge is normally used for drilling fluids treatment in solids control system, if the user need to change the speed of the centrifuge, we can provide different speed pully and belts to reach different G force for different purpose.
The centrifuge bowl assy is the most important components for a decanter centrifuge. GN centrifuge bowl material is duplex stainless steel 2304 and the other part is made of SS316. The screw is made of SS304 material by heating treatment up to 1000 degree, the propeller is protected by tungsten carbide tiles, it is repairable, the fluids distribution port and solids discharge port is protected by tungsten carbide alloy for better wear resistance.
The decanter centrifuge, VFD control panel and feeding pump are installed on a telescopic skid for convenient transportation and operation.
This is the repeat order from the client, we are seeking to provide the best pre-sales suggestion, good quality and advanced technology equipments, best after sales service, welcome to contact with GN sales engineer for more information.

This week GN solids control participate in CIPPE 2019 successfully. We got positive feedback from our client for the oil sludge treatment system and pitless solution for oil & gas drilling.

The pitless solution also called zero discharge system for drilling rig, it includes water based mud and oil based mud, the design is very different. For water based mud pitless system, the main equipments are screw conveyor, high G drying shaker, VFD decanter centrifuge, dewatering unit and solidification unit.
The oil based mud drilling waste management system , the major equipments are screw conveyor or vacuum pump, vertical cuttings dryer, VFD decanter centrifuge, we have standard design drilling waste management system for option, with treating capacity 40 m3/h. As per the new environmental protection laws, it is forbidden to dig a hole for storage of the waste drilling fluids and oil waste at the drilling rig site. It is a pollution of ground water and earth, and hard to treat the waste after drilling is finished, you need to waste more money and more time. The better way is to treat the drilling waste timely by using pitless system.
The useful drilling fluids can be recycled to prepare for new drilling fluids, the discharged solids can be used for landfill or construction industry when it meets the disposal standard of the specific country.
We also showed our compact design oil sludge treatment with the treating capacity 0.5 ~1 m3/h, the main configuration including shale shaker, decanter centrifuge, three phase centrifuge, pre-mixing tank, fluids collection tank and chemical dosing system, oil tank and water tank, all the equipments are installed on one skid for convenient transportation and operation. We have bigger size oil sludge treatment system with 5 m3/h and 15 m3/h for option, welcome to send us your inquiry.

This week we shipped several units of tandem shale shaker to Middle East for oil service company. The shale shaker is linear motion single deck 4 panel shale shaker, the 2 units of shale shaker installed on one tandem skid for convenient transportation and installed on the solids control system.

The complete unit of the tandem shale shaker is up to 1200gpm for WBM, OBM, SOBM, the actual treating capacity will depend on the density& viscosity of the drilling fluids and API mesh size used. GN solids control produce composite material shaker screens from API 20 to API 325, GN brand shaker screens are all compliant with API RP13C standard.
The shale shaker features are as below:
1) 4 panel shaker screens with composite material frame for longer working life, dimension as 585x1165mm
2) The shaker deck material is stainless steel 304 for better corrosion resistance
3) Patent rubber sealing on the shaker deck for better sealing
4) The 2 vibration motor is Italy Oli brand or Itavibras or US Martin brand, the explosion proof could be CNEX, ATEX OR IEC EX for option
5) The possem belly for the tandem shale shaker as drilling fluids flow distribution are included in the package. Container loading size for convenient transportation.
6) Adjustable G force up to 8.0 G, the shaker deck angle adjustment from -1 to +5, the both sides of the shaker deck will be adjusted simultaneously.
Except for shale shaker, we also produce mud cleaner, decanter centrifuge, vacuum degasser, mud agitator, centrifugal pump, mixing hopper, mud gun, mud gas separator, vertical cuttings dryer, mud tank, drilling waste management system, oil sludge separation system, pls contact with GN solids control for more information. Welcome to visit our stand at CIPPE 2019 and OTC 2019, we will show our high quality products at the oil exhibition.

Recently GN shipped one batch of hydraulic drive decanter centrifuges with feeding pumps and 80 units of centrifugal pumps to Middle East, The feeding pump is Netzsch brand screw pump, this is the popular and ideal equipments to feed decanter centrifuge.
We have electric drived decanter centrifuge and full hydraulic drive decanter centrifuge for different client’s requirement, especially for heavy drilling fluids, hydraulic drive centrifuge will be a good option. Compared with electric drive decanter centrifuge ( high speed decanter centrifuge, middle speed decanter centrifuge, VFD decanter centrifuge, centrifuge bowl diameter from 9 inch to 30 inch), the hydraulic centrifuge bowl assy is same, just the drive system and structure design is different. Hydraulic drive decanter centrifuge could be used in the area with high ambient temperature for heavy mud with flexible bowl and differential speed various application like barite recycling, mud dewatering and waste cuttings management.
The Features of hydraulic drive decanter centrifuge is as below:

1. Europe brand hydraulic drive system with PLC smart control and safe operation
2. Compart structure with everything on one skid for easy movement
3. It is necessary to use hydraulic drive centrifuge for high viscosity, heave mud in high temperature area, and it is easier to adjust the differential speed to get better performance of the centrifuge treatment.
   GN centrifugal pump is composed of pump head, coupler, skid by centrifugal casting, control panel. The features of GN solids control brand centrifugal pump:
4. Pump impeller and pump casing material is made of hard ductile iron alloy for longer working life and better wear resistance
5. All the parts and complete pump size is interchangeable with world famous brand centrifugal pump
6. Mechanical seal to provide zero leakage and longer operation life
   If you need more information about Hydraulic drive decanter centrifuge, pls contact with GN solids control.

This week GN solids control shipped containerized drilling waste treatment system to Russia again, this is not the first time we designed customized drilling waste management system for Russia drilling company, we set our standard drilling waste management equipments inside the standard 40ft container to keep them warm during operation in Winter, this is special for Russia area where the temperature in Winter is extremely low.

The decanter centrifuge and vertical cuttings dryer is installed on the frame which is fixed with the 40ft container, the container with windows, doors and the top cover is openable for convenient maintenance and screen basket replacement of the vertical cuttings dryer. And inside the container walls are protected by special material to keep it warm in Winter.
Features of GN vertical cuttings dryer:

1) The rotor is one of the major components for the vertical cuttings dryer, the rotor assembly is balanced, and the flights on the rotor is also individual balanced, then their complete set is also balanced for future replacement of the rotor assy.
The flights material is hard facing to HRC65 for longer working life.
2) The screen basket is also the major components, and it is also individual balanced for the screen and the frame, the user can only replace the screen basket without remove the frame when it is damaged or blocking.
3) The high pressure air knife is to clean the screen basket to avoid the blocking of the screens, the opening of the screen is optional as 0.25mm, 0.35mm and 0.5mm. Continue reading “Containerized drilling waste treatment system to Russia”

One of the largest oil show in Asia-CIPPE 2019 will be held in March, welcome to visit GN solids control stand at CIPPE 2019 in Beijing.
The general information is as below:

Show Time: March 27-29, 2019
Show Location: New China International Exhibition Center, Beijing (No.88, Yuxiang Road, Tianzhu, Shunyi District, Beijing)
GN Booth: E2168 (Hall E2)
Same as usual, GN solids control will show our lastest technology and equipments to participate in the show, and meet our valuable clients there. After the show, welcome to visit our factory which is very close to the exhibition center, only 30km by drive. All the clients from international and domestic are welcomed to check our facility, workshop, management and equipments.

GN showed one set of compact designed oil sludge treatment system at CIPPE 2018, many clients showed their interests on the oil sludge treatment system, after the show, the system has been tested by the clients in domestic, the separation result is very satisfied by the client, for more information, pls check the working video and case study from our formal website：http://www.gnsolidscontrol.com/video/oil-sludge-treatment-test-unit-working-video

After the show, the 1 m3/h oil sludge treatment have been sold to many clients in domestic and also for international clients. We also make several units of 5m3/h, 15 m3/h oil sludge treatment system with customized design for Europe and USA clients.
If you are interested in GN oil sludge treatment system, pls contact with GN sales engineer to get a question list. Continue reading “Welcome to visit GN solids control at CIPPE 2019”

Last week we have a trial centrifuge for Aluminum Hydroxide Slurry Separation for our client, the client express their samples by international courier. We prepare for the decanter centrifuge installed on a mud tank with Netzsch brand screw pump as feeding pump, and prepare the dilution Aluminum hydroxide fluids by another mud tank with a mud agitator installed on it. The agitator keeps agitating the fluids to prevent it from deposition. The VFD control panel is power on and set the bowl speed and differential speed, also adjust the feeding pump motor frequency to control the flow rate. At the beginning the flow rate should be at lower level, once the centrifuge working steadily and the solids discharged from the centrifuge discharge port, the flow rate could be increased.

Below is the photo comparison for the fluids before treatment and after treatment.

Below is the discharge solids from the centrifuge.

The trial centrifuge model is GNLW224D-VFD with single motor, the main motor power is 11kw, GNLW224E-VFD decanter centrifuge is an ideal option for waste water treatment, with both main motor and back drive motor, it is easier to adjust the differential speed, the smallest differential speed is 1 rpm, it can ensure the separation performance to get clear water and drier solids. And the cone drum angle is customized for different material treatment to get better result.
For larger treating capacity, we have 14 inch bowl GNLW364D-VFD decanter centrifuge, 18 inch bowl Continue reading “Decanter Centrifuge for Aluminum Hydroxide Slurry separation”