This week one unit of containerized 15 m3/h oil sludge separation system to Europe client.
The configuration consists of 5 modulars:

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1) Pre- mixing tank: the pre mixing tank is necessary, it will influence the result of the equipments next, like shale shaker tank, decanter centrifuge tank, disc centrifuge tank.
2) Shaker tank: the shale shaker with mud agitator installed on top of the mud tank, heating lines around the tank to increase the oil sludge flowability and increase the decanter centrifuge separation performance.

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3) 2 phase separation tank : the 22 inch decanter centrifuge installed on top of the tank, the screw pump installed on the same skid, and the screw conveyor collect the solids from the solids discharge port of the decanter centrifuge and transfer outside the container.

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4) 3 phase separation skid ：the disc centrifuge installed on the skid, the fluids discharged from the centrifuge fluids port flow to disc centrifuge, the clean oil and water will be pumped to separate oil tank and water tank.
5) Chemical dosing system: the chemical dosing system with 3 mixing tank chemical dosing system, and the coagulation system, each tank with chemical dosing pumps.
The oil sludge separation system is used in cold area, so all of the equipments are installed inside the 40ft container to keep it warm. We also consider the operation convenience for the user.
This is the repeat order from the same client, they bought one unit of 1 m3/h oil sludge separation system several month ago, and satisfied with the result.
Except for oil sludge separation system, GN solids control also provide good quality solids control system, drilling waste management system, we will send the question list to the client to know the project information firstly, then we will design customized system for our clients.

2 sets of oil sludge separation system are finished production in GN solds control, one system with grey silver color is 2 m3/h oil sludge treatment system , the other one is 15 m3/h oil sludge treatment system, which will be released next week.

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The 2 m3/h oil sludge treatment system is a trial order for the client, if it works well, the client will repeat order for a bigger one, GN standard and customized oil sludge separation system has been proved the performance.

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The technical configuration is as below:
1) Pre-mixing tank
Premixing tank is the necessary part of the oil sludge separation system, the sludge vacuum pump transfer the oil sludge from the waste pit to pre mixing tank for heating, agitating, chemical jetting, without proper premixing, the fluids flowrability will be increased, the separation result will be better.

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2) Classification modular, the oil sludge from pre mixing tank will be transferred to V tank bottom which with screw conveyor on the bottom, after classification, the top layer will flow to disc centrifuge, the bottom layer will be washed, chemical jetting and transferred to solids control manular.

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3) Solids control modular: it consists of shale shaker and 2 phase decanter centrifuge for liquid solids separation. The clean fluids separated from 2 phase decanter centrifuge will also flow to disc centrifuge modular. Both of the tanks with heating line around for heating the oil sludge and increase the separation efficiency.

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4) 3 phase separation skid: this is a back up skid, including gravity type oil water separator, once the disc centrifuge failed to work or during maintenance, the 3 phase separation skid will be work as back up.
GN solids control can design and produce customized oil sludge separation system as per client’s different requirement. Pls contact with GN team freely.

As a professional drilling fluids shale shaker manufacturer in China, GN solids control developed offshore ViST vacuum shale shaker and shipped to offshore project this week.

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Why use GN ViST vacuum shale shaker?
The user already installed solids control system at site, why they should use GN ViST vacuum shale shaker? GN ViST vacuum shale shaker is GN shale shaker with a vacuum suction hopper installed under the last shaker screen. It has a combination function of solids control shale shaker and high G drying shaker, and save the space to install the high G drying shaker, especially for the offshore drilling rig when there is no enough room to install drilling waste management equipments, The ViST vacuum unit solved the problem.

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By using GN ViST vacuum unit, the drilling fluids recycling efficiency will be increased by 30~ 50%, it reduced a lot the discharged drilling cuttings, then reduce the cost to transport, treat and disposal the drilling waste. It reduce the hazardous drilling waste influence to environment, and do not waste electricity power at site, it can use the same air compressor with rig.

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As a professional waste water treatment decanter centrifuge manufacturer in China, GN solids control can produce decanter centrifuge for many different applications, including waste water treatment, mining tailings treatment, dredging slurry separation system, drilling fluids cleaning, drilling waste treatment system, oil sludge separation system, dewatering unit, etc.we shipped several unit of decanter centrifuge to Russia for waste water treatment, the model is GNLW363C-VFD.

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The features of GNLW363C-VFD decanter centrifuge:
1) Bowl material is duplex stainless steel 2304 by centrifugal casting, the anti-corrosion is better than SS316L. The screw material is made of SS304 by heat treatment up to 1000 degree, the screw opening allow for better performance and bigger treating capacity. The bowl collection box is made of stainless steel for corrosion resistance.
2) The bearing is SKF brand to ensure the reliable performance

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3) The centrifuge will be installed on top of the telescopic skid or on top of mud tank, by working together with dewatering unit.
Except for GNLW363C-VFD, we also have 14 inch bowl decanter centrifuge for high speed up to 3900 rpm GNLW363CG and longer bowl length/ diameter ratio decanter centrifuge GNLW364C-VFD, it can be applied for high viscosity fluids separation. We will send a question list to get exact information of client’s requirement, then provide a customized decanter centrifuge solution for his project. We will have customized design for special fluids solids separation, for example, higher clearance water, drier separated solids.
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This week GN solids control shipped 56 units of mud agitator and 3 units of vacuum pumps shipped to China client. Mud agitator is one of the major equipments for mud tank system, it also works together with mud gun.

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There are 2 types mud agitators, horizontal and vertical installed mud agitator. Most of the mud agitator is horizontal type mud agitator for oil and gas drilling mud tank system, there are also 2 types horizontal mud agitator, one is direct connection type mud agitator, the gear box and explosion proof motor is installed directly; the other one is coupling connection type mud agitator, the gear box and explosion proof motor is installed through the coupler on the skid. The mud agitator is installed on the mud tank for agitating the drilling mud and prevent it from silting.

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The vacuum pump is used to transfer the drilling cuttings, solids waste, oil sludge, dredging slurry, hazardous waste, oil contaminated soils, etc waste. The vacuum pump is operated by air, no need electricity power. There are automatically operation and manually operation for option, the user need to get the vacuum pump ready before commissioning.
We have 10 m3/h, 20 m3/h, 40m3/h flow rate vacuum pump for option, the user can choose different model vacuum pump based on the required flow rate, the max solids size limit will depends on the pump model. Screw conveyor is another method for drilling cuttings transfer system, if the fluids content is very high, the vacuum pump is more suitable for such drilling waste. Continue reading →

Recently one set of oil based drilling cuttings treatment system is shipped to CNPC project , the technical specs are as below:
1) High G force vertical cuttings dryer: Vertical cuttings dryer is the ideal equipments to separate oil from oil based drilling cuttings, the result is the oil on the cuttings below 5%. The flushing pump for the vertical cuttings dryer is Germany Netzsch brand screw pump, the client can choose to use their own pump if necessary.

2) High speed decanter centrifuge to separate the fine solids from the fluids recovery from the vertical cuttings dryer fluids discharge port. The centrifuge feeding pump is Germany Netzsch brand screw pump for reliable feeding.

3) Catching tank to collect the fluids discharged from vertical cuttings dryer and decanter centrifuge, the tank divided into 2 compartments, each compartment with one mud agitator to prevent the soils from deposition.

Features of GN high speed decanter centrifuge:
1) Whole screw is made of stainless steel material, heat treatment to 1000 degree for better strength, the screw opening allows larger treating capacity and better separation performance
2) The collection box is made of stainless steel, the bowl is all made of deplex stainless steel 2205 by centrifugal casting.
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Recently GN solids control shipped one set of high configuration solids control system for workover rig to Australia. This is not the first unit mud tank system working in Australia, we have over 30 sets of mud recycling system to Australia, we have experience to manufacture solids control system which can meet the Australia explosion proof and safety standard.

The technical specifications of this solids control system is as below:
1) 2 units of shale shaker installed on the shaker tank for cleaning the drilling fluids, with mud agitator, mud gun, etc accessories, we have 3 panel shale shaker and 4 panel shale shaker for option, all installed composite material shaker screens.
2) 2 units of mixing pump, 1 units of venturi hopper installed on the mixing tank for adding chemicals to prepare for the new drilling fluids, with mud agitator, mud gun, walkway, handrails, stairs, valves, fittings, flexible hose, connection pipeline, etc. The clean gate is with high position gate valve type for convenient cleaning of each compartment, we will try to design the clean gate in the middle of each compartment.

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3) The painting and coatings are comply with Australia safety standard, the the tank top surface is fixed with high strength glass fiber reinforced plastics for better UV protection as per client’s request.
As a professional manufacturer of solids control equipments and drilling waste management equipments in China, GN solids control can produce shale shaker, mud cleaner, desander, desilter, decanter centrifuge, vacuum degasser, mud gas separator, mud agitator, mud gun, mud tank, vertical cuttings dryer, screw conveyor, screw pump, shaker screens, etc equipments. Continue reading →

One unit of Hydrovac excavation waste slurry treatment system is shipped to Canada, the function of this treatment system is to recover the water and remedy the soil, the environmental protection regulation is very strict in North America, we already have 2 units of such hydrovac excavation waste slurry treatment working in the State.

The slurry treatment system is consist of equipments below:
1) Waste collecting hopper:
The waste collecting hopper collect the waste slurry discharged from hydrovac truck.
2) Course solids washing tank
The coarse screen under waste collection hopper will separate the big size trash and other mass firstly before feeding to the high G drying shaker.

The high G drying shaker with GN brand composite material frame shaker screens will separate most big size solids and reduce the solids content before feeding to the desilter cone.
3) Fine solids washing unit
Fine solids is separated by desilter cones and the solids is drying by the bottom drying shaker so the discharged soil will be drier for disposal and more fluids will be collected.
4) Dewatering centrifuge unit

The dewatering centrifuge is 22 inch big bowl big volume centrifuge with feeding pump and telescopic skid. The result will be better by using chemical dosing system. The ultra fine solids below 2 microns will be separated by decanter centrifuge with dewatering unit.

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This week 2 units of big bowl big capacity decanter centrifuges with VFD control panel are shipped to Australia for mining sludge separation applications. Features of GN decanter centrifuge:
1)    Full stainless steel cover with PLC smart control, vibration sensor, temperature sensor to adjust the frequency of the centrifuge to meet the different requirement of the clients. The main motor, back drive motor and pump motor converter is made of ABB brand, all the other electrical components are from Siemens, Schnerder, ABB and other famous brand.

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2)    The centrifuge bowl is made of duplex stainless steel 2304, the screw is made of stainless steel by 1000 degree heating, the solids discharge port and fluids distribution port is protected by tungsten alloy, the impeller opening deign will enlarge the treating capacity and the treatment performance.

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3)    The bearing lubrication system feed the lubrication oil by the oil pump, it is cooling by the plate type heating exchanging system can effectively cool down the lubrication oil so that to get a better cooling performance.
4)    The client can install the decanter centrifuge with VFD control panel, feeding pump, on the telescopic skid, during transportation, the user will low down the telescopic skid to fit for transportation height limit.
5)    The specification of the big bowl big capacity centrifuge: The designed treating capacity is 120m3/h, the max G force is 3000G, the normal speed is 0 ~2200 rpm, max speed is 2650rpm, the bowl size is 760mm, the bowl length is 3328mm, the main motor power is 160KW, the back drive motor is 90KW. The electrical motor and VFD control panel are all comply with Australia standard.
6)    The centrifuge is widely used for dewatering unit, solids control system, waste water treatment,etc industry.
If you need a big bowl big capacity decanter centrifuge, pls contact with GN solids control.

This week GN solids control shipped 2 units of Large Bowl 30 inch GNLW764A Decanter Centrifuge for Mining Industry to Australia, this is the largest centrifuge model we have made right now, we have 9 inch, 14 inch, 18 inch, 22 inch and 30 inch bowl decanter centrifuge with different treating capacity, different speed, different G force for various applications.

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The diameter of the centrifuge bowl is 760mm, the bowl length is 3328mm, the treating capacity is 528gpm, max bowl speed is 2650rpm, typical bowl speed is 2200rpm, max G force up to 3000G, typical G force is 2060G. The main power is 160KW, back drive motor is 90KW, the gearbox Torch is 25000.N.M.

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Same with the smaller decanter centrifuge, the screw propeller protection is tungsten carbide tiles, the bowl fluids distribution port and solids discharge port is protected tungsten alloy for longer working life, the bowl material is made of duplex stainless steel 2304 for anti corrosion.
The bearing for this big bowl centrifuge is very big, need separate lubrication system for better lubrication to extend the working life of the bearings. The plate type heating exchanging system can effectively cool down the lubrication oil so that to get a better cooling performance and the temperature sensor installed on the bearing seat will send signal to the PLC to trip off the centrifuge in case of over high temperature.
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