GN design and manufacture crude oil sludge treatment system. The main principle of process is by heating the oil sludge and wash the oil sludge with chemical and separate by GN separation equipment to get final product of clean oil, clean water and environmental friendly solids.
The process of GN Crude Oil Sludge Treatment is as below:
1) Pick up oil crude oil sludge.
Depends on the condition of the oil sludge, a sludge vacuum pump can be used to pump solids and mixture of liquid. The excavator will be used to pick up sticky and high solids content crude oil sludge.
2) Pre-Mixing with heat and chemical
After pick up from the sludge pit, diesel or water will be added to the mixing tank to dilute the oil sludge, and the tank is design with heating pipelines to heat up the oil sludge to be 70 c degree. Oil sludge treatment chemicals will be added during the mixing process to reduce the viscosity and enhanced the separation of the oil sludge.
3)Primary screening separation.
After mixing and washing, the mixture of sludge will be pumped to the shale shaker for separation of coarse solids. Typically, 2mm screen will be used on the shale shaker.
4) 2 Phase decanter centrifuge separation
After removal coarse solids by shale shaker, the fluid with fine solids will be pump to the two phase decanter centrifuge for fine solids separation. The majority of the solids will be separated by the decanter centrifuge. Typically, the solids discharged will be have oil on solids below 2%. And the solids will be sent to thermal desorption unit or further treatment.
5) 3 Phase separation
After fine solids separation by decanter centrifuge The fluids will be feed to a 3 phase disc centrifuge for separation of oil, water and solids. The recovery oil can be sold to Refinery Company.
6) Water treatment Process.
The water discharged from disc centrifuge will be sent to a water treatment equipment to get clean water. And the recovery water can be reused for washing the oil sludge again.
You can visit here to check the video of our oil sludge treatment system below:
http://www.gnsolidscontrol.com/video/oil-sludge-treatment-test-unit-working-video
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Published: 10 October 2018
Some sets GN sludge Vacuum Pump unit and a big quantity of mud agitators have been shipped for a national project in China. The sludge vacuum pump is an ideal solution for solids transfer, and for long distance transfer. The mud agitator is basic solids control equipment for drilling rig mud system. The agitator is composed of EX control, worn and gear reducer, shaft, impeller and tank bottom stabilizer, which enable stable performance in wild severe environment The mud agitators are high-efficiency mud-mixing units offered in a wide array of custom sizes, and configurations to accommodate virtually any mud tank. It is to avoid over-load of current during start up motor.
Mud agitators can be equipped to all kinds of mud tanks, for agitating and to avoid solids settle down. For example, the mud agitators can be used for sand trap tank (shale shaker tank), intermediate tank, suction tank, storage tank, mixing tank, storage tank, water tank, brine tank, etc…GN Solids Control can make full package of mud tank system equipped with mud agitator and other processing equipment. GN Solids Control can also offer the mud processing equipment only, and offer relative drawings to clients to help them build mud tanks locally.
Besides mud agitator, GN Solids Control is capable to make the full package of solids control equipment. Below are some of the mud processing equipment made by GN Solids Control. But it is not limited to below equipment.
1)GN Solids Control makes 3-panel, 4-panel Linear motion shale shakers for the coarse solids separation in drilling mud system.
2)Hydra cyclone cleaner, like desander, desilter and mud cleaner
3)Decanter centrifuge can be used for barite recovery and dewatering system for fine solids separation.
4)Mud shearing and mixing unit for mud chemical dosing and mixing.
5)Other small equipment for mud tank system, mud gun, shearing pump, centrifugal pump, screw pump, screw conveyor for drilling cuttings transfer, etc…
Furthermore, in order to support clients better, GN Solids Control makes high quality replacement screens for different brand shale shakers, not only for GN own brand shakers.
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Published: 15 September 2018
A new set of drilling cuttings treatment plant has been ready for shipment recently. It is a waste management project for a CNPC project in China. The drilling cuttings treatment plant will be used to treat oil based mud and cuttings.
As the waste management plant will be used to treat to oil based mud and cuttings, below processing equipment are included in the quotation:
1) Vertical cuttings dryer is major equipment used to oil based mud and oil based cuttings. 1 each GNCD930D vertical cuttings dryer is included in the system. Vertical Cutting Dryer uses centrifugal force to dry drilled solids in oil or synthetic base fluids. GN Vertical Cuttings Dryer specially designed not only for oil based mud, SBM but also can be used for water based drilling waste.
2) Decanter centrifuge is the second stage separation equipment in the cuttings treatment plant.
3) Screw pumps are used in the drilling cuttings treatment system as flush pump for vertical cuttings dryer and centrifuge feeding pump. Many people are wondering, screw pump costs higher, why GN uses screw pump to flush the vertical cuttings dryer. Water pump price is much lower than the screw pump. Can water pump be used as flush pump for vertical cuttings dryer? The answer is No. As vertical cuttings dryer is used to treat oil based cuttings, water cannot be used for flushing. Clean oil based mud or diesel oil should be used for flush.
GN Solids Control is not only an equipment manufacturer. Another advantage of GN Solids Control is to offer complete solution. So besides the processing equipment decanter centrifuge, vertical cuttings dryer, and feeding pumps, GN Solids Control also offer the holding tank and explosion proof control system in order to offer complete solution.
Besides this set oil based cuttings treatment system, GN solids Control offered many other waste management system for CNPC project.
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Published: 08 September 2018
GN Solids Control is a top manufacturer for drilling mud solids control, drilling waste management and oily sludge separation. GN Solids Control is among the few manufacturers who are capable to make full package oily sludge separation system.
GN Solids Control owns complete and advanced design production line to produce all major equipment for waste manage and oily sludge separation, it includes but not only limited to solids control shale shaker, high G shale shaker, vacuum screen unit (GN ViST screen cavuum unit technology), vertical cutting dryer, sludge vacuum transfer pump, high speed decanter centrifuge, big bowl decanter centrifuge, vertical centrifuge for 3-phase separation, oil water separator, thermal desorption unit (TDU), inclined plate clarifier. etc...
Many clients contacted GN Solids Control sales team and inquire that what equipment does GN produce that can treat drill cuttings to give less than 2% OOC.They believe the only way to achieve this is by thermal treatment or similar. GN Solids Control recommend them oily sludge separation system by heating and chemical washing.
By using the right chemical and heat washing (70 C Degree). It is possible to reduce the OOC (oil on the cuttings) to 2%.For some kinds of drilling cuttings, clients may need one more vertical cuttings dryer to treat the cuttings discharge from the Shaker in the enclosed system.
GN oil sludge separation system can be used to treat Oily sludge from:
1) Crude Oil tank cleaning sludge
2) Refinery plant waste oil sludge
3) Drilling waste oil sludge
GN Solids Control have standard oily sludge separation system for 2 m3/h capacity, 5 m3/h capacity and 15 m3/h capacity. The treatment capacity specified is depending on the decanter centrifuge capacity. The raw material waste to the shale shaker or vertical cuttings dryer can be larger than it. And depends on clients material situation and project request, GN Solids Control can offer customized solution to meet clients demands.
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Published: 02 September 2018
2018 is a busy and wonderful year. Every weeks, different waste management systems or liquid / solids separation equipment are dispatched from GN Solids Control Beijing factory one by one. Recently, another full package of slurry treatment system for construction hydrovac excavation has been dispatched to sea port and will sail to Canada jobsite soon.
The slurry treatment system will be used for hydrovac slurry separation and horizontal directional drilling slurry treatment. The principle of the slurry separation system is to use liquid and solids separation equipment to treat soil or soup or slurry generated from the hydrovac or HDD project, and produce reusable material for construction and discharge clean water.
The hydrovac excavation waste slurry treatment system for Canada client includes following packages:
1）1 set of Pick Up and Washing Tank. It is a customized V bottom tank complete with walkways, guardrails, valves, clean gate and pipelines.
2）1 set of Primary Vibration shale shaker complete with coarse Screens
3）1 set of Secondary Shale Shaker separator complete with API mesh screens
4）1 set of mud cleaner Desilter complete with shaker assembly underneath the hydra cyclone unit
5）1 set of 22 inch Big Bowl Dewatering Centrifuge with big volume for water treatment
The big bowl decanter centrifuge is located in a telescopic skid. The skid can be low down for international container shipment and for inland shipment. During working it can be lift up to suitable height.
GN Shale Shakers and desilter mud cleaner as well as the big bowl decanter centrifuge will separate soils and solids from the waste slurry water, and clarify the soil and solids into different size of particles. The recycled aggregates and soils or sands can be reused as construction field materials. The recycled water can be reused for the HDD act ivies or to be discharge.
For more information of the GN hydrovac excavation slurry separation system, please feel free to contact GN sales team.
Please visit below website Below is a jobsite video of GN hydrovac excavation slurry separation system
http://www.gnsolidscontrol.com/video/gn-hydro-vac-slurry-waste-treatment-solutions
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Published: 26 August 2018
This week, 2 sets GNLW764A –VFD large bowl decanter centrifuge are ready and will be dispatched to Australia customer. The 2 sets big bowl centrifuge equipped with PLC smart control VFD control system will be used for mining field waste water treatment.
GNLW764A-VFD is a large bowl decanter centrifuge designed and made by GN Solids Control. The GNLW764A-VFD decanter centrifuge is with 30 inch (760mm) diameter big bowl, and the bowl length is up to 3328mm. It is a Two Phase Decanter Centrifuge with high wear protection used for liquid and solids separation.
The bowl diameter and length ratio is up to 4. The 30 inch big bowl centrifuge is with big volume and mainly used for micro tunneling and mining industry for big capacity application.
Features of GNLW764A-VFD decanter centrifuge:
1) The bowl material of GNLW764A-VFD centrifuge is made from SS2304 Duplex stainless steel by centrifugal casting.
2) The Solids Discharge ports are protected by 360°type with wear protection with 12 fully covered tungsten carbide discharge wear liners.
3) The Liquid Discharge of GNLW764A-VFD centrifuge is equipped with adjustable Weir Plates. Operators can adjust the wetness of the centrifuge discharge by changing the liquid discharge plates.
4) On the centrifuge bowl, there are 8 ports fully covered by Tungsten Carbide Wear Liners; with patented design speed bar. There are also protections on the centrifuge bowl solids charge ports. The Solids discharge ports are protected by Tungsten Carbide Wear Liners, furthermore, there are tungsten carbide scrapers for cleaning.
5) The centrifuge bowl are protected by Tungsten Carbide Tiles with stellite backing plates, the bowl conveyor is tiled the entire length of centrifuge
Besides the large bowl decanter centrifuge, GN Solids Control can offer complete slurry separation system for mining industry and for desanding plant for micro tunneling industry.
GN Solids Control also makes 9 inch mini size decanter centrifuge diamond drilling in the solids removal unit.
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Published: 18 August 2018