Desander Desilter

Recently GN has one unit of oil sludge treatment unit for sale, welcome to contact with sales engineer for more details. We have 3 models of oil sludge treatment unit with different treating capacity for option, 1 m3/h, 5 m3/h, 15 m3/h. The one we have in stock is 1 m3/h model. All the motor, control panels are explosion proof, suitable for application of oil & gas industry.

The configuration including: 1 ea pre-mixing tank with heating lines & mud agitator, 1 ea shaker tank with heating line and transfer pump, 1 ea 2 panel shale shaker, 1 ea mini decanter centrifuge, 1 ea centrifuge feeding pump, 1 ea disc centrifuge, 1 ea oil storage tank, 1 ea water storage tank, 1 unit of chemical dosing unit, pipelines and electric control system, all of the items installed one skid for convenient operation and land transportation.
The oil sludge treatment unit is used widely for Crude Oil tank cleaning sludge, Refinery plant waste oil sludge, Drilling waste oil sludge.
The working process is as below:

The sludge vacuum pump pick up the oil sludge from the waste pit to pre-mixing tank, ( for the compact unit with 1 m3/h capacity, the user dump the material to the pre-mixing tank directly by folk lift or crane ), the oil sludge is heating up to 60℃ to increase the flowability and make it easily to separate in the next process. The transfer pump will transfer the oil sludge to shale shaker to separate the coarse solids, the fluids dropped into the second tank which also equipped with heating lines inside, the decanter centrifuge feeding pump feed the fluids to decanter centrifuge to separate fine solids, the fluids flow to buffer tank, then flow to disc centrifuge to recover oil and water, the water and oil are storage into 2 box separately.

Recently GN solids control shipped several sets of mud cleaning system to North America for vacuum truck slurry treatment project, it can be used not only for vacuum truck slurry treatment project, but also for dredging slurry separation, mining tailings treatment, construction waste treatment, drilling mud cleaning, drilling waste treatment system, etc. projects.
The technical specification is as below:

Part 1: waste slurry collection hopper from vacuum truck to storage the slurry temporarily, there are 2 discharge port in the bottom of the hopper, so that the slurry can be fed to the 2 units of double deck shale shaker directly.

Part 2: mud treatment tank for coarse solids separation, including 2 units of double deck shale shaker, 1 unit of mud agitator, 1 unit of mud tank with pipelines, tank accessories.
Part 3: mud treatment tank for fine solids separation, including 1 unit of linear motion shale shaker, 1 unit of submersible slurry pump, 1 unit of mud cleaner, 1 unit of mud tank with pipelines, accessories, electric control system

Part 4: dewatering centrifuge package with chemical dosing system, centrifuge feeding pump, 1 unit of mud tank. To match with the treating capacity of the mud cleaning system, the dewatering centrifuge should be a big bowl decanter centrifuge, when used the chemicals or flocculants, the centrifuge treating capacity will be reduced a lot. The max centrifuge model we have is GNLW764A-VFD, the bowl diameter is 30 inch (760mm), the bowl length is 3328mm, the ratio of bowl length/ bowl diameter is 4.4 for better treatment performance. The max bowl speed is 2650rpm, the working speed is 0 ~2200 rpm, the max G force is 3000G, the normal G force is 0~2060G, with mechanical separation cut point is 2~5 microns, when working with chemical dosing system, the cut point is up to 1 microns.

One set of GN dewatering centrifuge with chemical dosing system is used for TBM project for Southeast Asia clients. The purpose to use dewatering centrifuge system is to reduce the ultra fine solids of the mud, to get drier solids and clear water, the water can be re-used or sent to final water treatment system for disposal. It will save water consumption for the client so that the cost is saved, and meet the environmental regulation in the user’s country.

The configuration is as below:
1 set of high speed decanter centrifuge with 1 set of 20ft container, as one of the most professional decanter centrifuge manufacturer in China, GN solids control can produce different size bowl decanter centrifuge with different treating capacity, from 9 inch to 30 inch, the bowl length/diameter ratio has option with 3 and 4 for different applications. Based on special projects, we will design customized centrifuge to meet client’s requirement.
our centrifuges have been widely used for oil & gas drilling solids control system and drilling waste management system, mining tailings treatment, industrial waste water treatment, dredging slurry treatment, TBM & Tunneling mud recovery dewatering unit, oil sludge treatment system and all the other kinds of solids/ liquid separation projects.

The high speed decanter centrifuge mechanical separation cut point is 2~5 microns, when adding chemicals ( flocculants agent), the ultra fine solids ( below 1 microns) in the mud can be separated out and the centrifuge separation performance will be increased, so that the user can get more clear water and dries discharged solids from the decanter centrifuge.

One set of chemical dosing system installed into a 20 ft container, with 3 stainless steel material compartment with hopper, agitator, chemical dosing pump, pipeline system and brackets, all of them are controlled by PLC control panel.

We shipped a repeat order to Russia client this week for several units of shale shakers, Russia market is one of our best market among over 70 countries in the world, the best seller is shale shaker, mud cleaner, shaker screens, decanter centrifuge, vertical cuttings dryer. Most of the shale shakers are used for oil & gas drilling industry.
Shale shaker technical specification:

1) GN solids control has different models with different treating capacity for option, we have 2 panel shale shaker, 3 panel shale shaker, 4 panel shale shaker and double deck shale shaker, all of the shale shaker installed with composite material frame shaker screens, the total screen effective area with different treating capacity.
2) Normally we produce linear motion shale shaker, if required by client, we will make dual motion shale shaker, which with linear motion and progressive elliptical motion shale shaker.

3) The shaker deck is made of carbon steel material, and the deck bottom is made of stainless steel 304 material for better strength, better abrasion resistance, this component is fluids touch part. For special requirement, we can also make the whole shaker deck with vibration beam with stainless steel material, the mounting skid is made by high grade structure steel.
When install the desander, desilter frame on top of the shale shaker, the 3 in 1 combination unit will be called as mud cleaner. With different qty desander cone and desilter cone, the treating capacity is different. We have 500gpm, 1000gpm, 1500gpm treating capacity for option.
4) The shale shaker and mud cleaner adopted with same dimension shaker screens, which are also interhchangeable with world’s famous brand shale shaker. Except for OEM screens, we also produce replacement shaker screens for other brand shale shaker.
If you are interested in shale shakers and mud cleaner, pls contact with GN solids control.

Recently GN shipped one set of water based drilling cuttings disposal system to Africa, firstly the client use water based drilling cuttings treatment system to treat the drilling waste firstly, to reduce the moisture of the discharged cuttings as much as possible, so the user can use less lime and absorber material and save the cost to reach better solidification result. The working principal of the cuttings solidification unit is to use lime and absorber to mix the drilling cuttings and prevent the waste from leakage to the environment, and safe for landfill and other construction works.
The solidification unit configuration is as below:

Installed one 2 separate skid for flexible operation, one skid is drilling cuttings collection hopper to receive the water based drilling cuttings and transferred by screw conveyor to solidification mixing skid; the other skid is solidification mixing unit including lime storage box, absorber storage box, with 2 auger to transfer the material to high shear mixer, the materials are mixed by high shear mixer and transfer to the solids discharged port, the hazardous waste are locked into the discharged solids, so that it can be safe to the environment.

High G drying shaker is a 4 panel screen shale shaker, the shaker screens installed is composite material frame shaker screens, 2 nos of 1.94KW vibration motor provide high G force up to 8.0G, the hopper type buffer box to receive the drilling cuttings from the auger discharge port.
VFD decanter centrifuge to separate the fine solids from the drilling waste, if necessary, flocculants should be added to increase the separation performance, the fluids will be more clear, and the discharged solids is much drier. The max speed is up to 3900rpm, max G force is 3063G, the typical speed is 3200rpm, the typical G force is 2062G.

Three phase separator produced by GN solids control is used to separate the oil from water for refinery oil sludge separation project. There are 2 options for the 3 phase separation unit, one is to use three phase decanter centrifuge, the other option is GN standard 3 phase separation package.

Three phase separation package is consist of 2 phase decanter centrifuge and feed by screw pump, buffer tank to receive the discharged fluids and to be transferred by diaphragm pump or slowly flow to disc centrifuge for oil and water separation, the oil is recovered and back to the client, the water will be collected and re-used in the circulation system. By using proper demulsifier, the recovered oil can reach to BS &W below 3%. The water to be collected with oil content 500 ~ 1000ppm.

The 2 phase separation decanter centrifuge with VFD control panel is used to separate the ultra fine solids up to 2 microns. The max speed is 3900rpm and the normal working speed is 3200rpm, the max G force is up to 3063G and typical G force is up to 2062G, if necessary, the used can add proper chemicals to accumulate the ultra fine solids for easier separation by gravity difference. The disc centrifuge can provide high G force to separate the oil from water after discharges by decanter centrifuge.
Another option is oil water separator, the separation result is not as good as disc centrifuge, but the capacity is much bigger and the price is cheaper. The 3 phase separation package can be used for most type of oil sludge waste treatment, like Crude Oil storage tank cleaning sludge, Refinery plant waste oil sludge, Drilling waste oil sludge.
If you need customized solution for your crude oil cleaning, oil sludge separation, pls contact with GN solids sales.

Last month we shipped one set of Heli lifted solids control system to Papua New Guinea by air freight. This is not the first time for GN solids control to produce such Heli lifting mud tank system, we ever supplied the similar projects before. The design and production is different with the normal solids control system.

The Heli lifted solids control system including:
2 units of shale shaker, 1 unit of mud cleaner, 2 unit of centrifugal pump, 1 unit of mud gas separator, 1 set of trip tank, 1 set of treatment tank, 1 set of mud mixing tank, all with tank accessories, handrails, walkway, stairs, electric control system, lightings, mud agitator, mud gun, etc.

Linear motion Shale shaker with 3 pcs composite material frame shaker screens, 2 ea of 2.3HP vibration motor, 1 ea of explosion proof starter, the shaker deck bottom is made of stainless steel material for better abrasion resistance. The G force is adjustable and up to 7.5G.
Linear motion mud cleaner with 3pcs composite material frame shaker screens, 2 ea of 10 inch desander cone, 12 ea of 4 inch desilter cone, also equipped with 2 ea 2.3HP vibration motors, 1 ea of explosion proof starter.
The mud gas separator is installed on a frame for convenient transportation, during shipment, it will be laying down.

All the equipments are installed in a heli lifting designed frame for safety lifting by a Helicopter in Papua New Guinea.
The mud tank are also equipped with lifting pad for heli lifting purpose. The mud agitator are heavy duty to be used to agitate the drilling fluids in the mud tank.

If you need such customized design solids control system, pls contact with GN solids sales. We can also produce vacuum degasser, decanter centrifuge, vertical cuttings dryer, etc. equipments for solids control system.

GN solids control will participate in the No Dig 2019 exhibition in New Delhi, welcome to meet us and study more information of our HDD mud recycling system. The exhibition information is as below:

Show Name: NO DIG INDIA 2019
Show time: 11 & 12 December 2019
Pavilion Name: Downtown District, Opposite Aerocity Metro Station, Aerocity,
Indira Gandhi International Airport, New Delhi, INDIA
Address: Aerocity, New Delhi ，International Conference & Exhibition
Stand No.: 25

Products: GN solids control is experienced to produce HDD mud recycling / cleaning / mixing system for HDD machine with different treating capacity, 150gpm, 200gpm, 350gpm, 400gpm, 500gpm, 600gpm, 800gpm, 1000 gpm. The storage capacity is customized according to client’s requirement with different mud tank dimension.
The major equipments of HDD mud recycling system including:
Centrifugal pump: GN centrifugal pump is interchangeable with world famous brand centrifugal pump and all the spare parts are 100% interchangeable. The pump casing and impeller is made of hard ductile iron alloy for better abrasion and longer working life. The centrifugal pump can be used as feeding pump of desander cone, desilter cone, also can be used as mixing pump, mud transfer pump.

Mixing hopper with mixing pump as bentonite mixing unit
Shale shaker: we have single deck shale shaker and dual deck shale shaker for different applications. We can provide composite material shaker screens from API 20 to API 325 as per client’s requirement.
Mud cleaner: we use different qty desilter cone for different treating capacity, to be installed on the single deck shale shaker and dual deck shale shaker. For 3 phase cleaning mud system, the first phase separation is shale shaker to separate coarse solids, the second phase separation is desander cone with cut point of 45 microns, the third phase separation is desilter cone with cut point of 25 microns.

This week GN Solids Control back from ADIPEC oil exhibition successfully, the show date is from Nov. 11th to Nov. 14th, 2019, the exhibition location is in Abu Dhabi, we have showed our popular products in the exhibition.

1) Decanter centrifuge: we can produce VFD decanter centrifuge and high speed decanter centrifuge, the VFD control panel is positive pressurized to comply with CNEX, ATEX or IEC EX explosion proof standard for zone 1 or zone 2 application, the main motor, back drive motor and pump motor drive are all from famous brand for reliable performance, the max speed of the 14 inch bowl decanter centrifuge is up to 3900 rpm, the normal speed is 3200 rpm, the max G force is 3063G, the normal G force is 2062G. The application is solids control, drilling waste management, dewatering unit, waste water treatment and all other fine solids separation.

2) Linear motion Shale shaker With ViST screen: we can produce 2 panel shale shaker, 3 panel shale shaker, 4 panel shale shaker, the ViST screen collection hopper is installed under the last screen, and connect with the vacuum unit, so that the fluids can stay in the screens for longer time and with better separation efficiency, the discharged solids can be much drier, so the drilling waste can be reduced a lot.

3) Shaker screens: we can produce OEM and replacement shaker screens with composite material frame for longer working life, the screen over API 60 all use 3 layers stainless steel wire mesh for reliable operation.
4) Sludge/ Solids vacuum pump is widely used to transfer the oil sludge, drilling waste, drilling fluids, dry sand, and all other kinds of sludge. It is a 100% air operated pump without electricity power supply.
For more information, pls contact with GN solids sales.

As one of the professional oil sludge separation system manufacturer in China, GN solids control can design and produce customized system for our clients working for oilfield environmental solution company, refinery tank bottom cleaning company, oil sludge treatment facility, oil waste water treatment company, oil waste disposal company, etc. Recently we have one set of oil sludge separation system ready for shipment, if you are interested in a solution for oil sludge treatment, pls contact with GN sales engineer to check the system.

A basic oil sludge separation system including: sludge transfer unit, pre-mixing modular, coarse solids separation modular, fine solids separation modular, 3 phase separation modular, chemical dosing unit, oil storage tank, water storage tank and other accessories. The most important modular is fine solids separation modular and 3 phase separation, the other modular might be replaced or removed depends on the client’s requirement and site situation.

A decanter centrifuge with positive pressurized VFD control panel is used to separate the fine solids from the oil / water mixture liquids, proper chemicals should be used in the process to improve the separation performance, the fine solids should be separated as much as possible so that the next step 3 phase centrifuge can separate the oil and water with good result, without blocking the equipment. Before feeding to the decanter centrifuge, no solids bigger than 1mm remained in the oil sludge should be ensured, it might influence the centrifuge working life and lead it to blocking easily.

The 3 phase centrifuge is to use to separate the oil from water, and oil will flow to a small tank, when the liquid level reach the setting limit, the oil pump will pump it to the storage tank automatically, which will be recovered by the refinery. The recovered water can be re-used in the circulation to be used for mixing, heating and flushing.