As a drilling mud decanter centrifuge manufacturer, GN Solids Control has developed a series of big bowl decanter centrifuge for tunnel boring machine slurry treatment. The most popular decanter centrifuges for TBM projects are as following:
1)GNLW553C-VFD Decanter Centrifuge
The GNLW553C decanter centrifuge is designed with bowl size of 22inch diameter by 71 inch length. The hydraulic capacity for water is up to 500GPM. This centrifuge is designed for small Tunnel Boring Project. It can be used with flocculation system for dewatering or mechanical separation for TBM Slurry.
2)GNLW764A Decanter Centrifuge
The GNLW764A decanter centrifuge is large bowl centrifuge is designed with bowl size 30inch diameter by 132 inch length. It’s hydraulic capacity for water is up to 1000GPM. This centrifuge is designed for big Tunnel Boring Project.
Features of GN Big Bowl Decanter Centrifuge for TBM Slurry Treatment
1)Duplex Stainless Steel bowl made from Centrifugal casting.
2)All along the screw inside the bowl is protected by Tungsten Carbide tiles.
3)The Solids Discharge port on the bowl and the Mud distribution port on the Auger is protected by Tungsten Carbide inserts.
4)The bearing is SKF premium bearings for longer and stable operation.
5)The VFD and PLC control system with HMI screen design is for user friendly and smart control.
The typical process of TBM Slurry Separation
The TBM slurry feeds to Coarse mesh primary shale shaker for first phase separation. After that the overflow will be pumped to big desander cones for sanding removal. The third phase separation is by a group of desilters for silt separation. Normally below the desander and desilter the underneath shaker is for drying the solids. The decanter centrifuge is used to remove fine solids. The flocculation system is to offer chemical enhanced technology to give clean water for reuse.
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Published: 19 September 2017
GN Solids Control makes big bowl decanter centrifuge for building construction field for dewatering. As the building construction is mostly took in the city, where has strict request to reduce the waste and control the pollution. GN Solids Control offers complete solution on construction field waste water treatment.
Some days ago, another set waste water treatment and recovery system was dispatch to a client in USA. This is not the first system the client bought from GN Solids Control. The client bought some waste water recovery systems from GN Solids Control Houston company: GN Solids America. They used the systems in USA for some projects. They are happy with the performance. And GN waste water treatment and recovery system helps them save much money on environmental protection. They did not need to cost much money to hold and transfer the waste mud and waste water generated from their construction activities, and then pay money to other waste treatment money for purification. Now they can do all the jobsite on site. They can used the recovered water for their construction drilling field. They can save money, save people and save time for their projects.
The construction waste water treatment system is including below processing equipment:
1) The first separation is by a coarse mining shale shaker to remove rocks and big size sands.
2) A solids control shale shaker will be used as the second stage separation to further remove sands and silts.
3) A desilter is used after solids control shale shaker to reduce the silt content.
4) After the desilter separation, there will be not big size solids in the liquid. Big bowl decanter centrifuge and domical dosing system will be used together to remove the ultrafine solids after desilter.
After all above separation, the solids discharged is dry and easy for movement or further treatment. The water is reach the standard for industry recycling.
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Published: 08 September 2017
GN Solids Control is the No. 1 brand in China for direct importing of compact mud recycling system for different applications, like HDD, water well drilling, piling, micro tunneling, or other no-dig underground constructions.
Why GN Solids Control mud recycling system is hot sold and welcomed by international customers? Below are some of the reasons:
1) GN mud system capacity and shale shaker capacity is defined in real drilling mud condition, like the system capacity max. 120m3/h or 240m3/h, it means the shale shaker on the mud recycling system can handle max. 120m3 or 240m3 drilling mud with API 40 screen (400microns) for 1.2g/cm2 mud density and 40s mud viscosity.
There are many other brand, they write down a huge system handling capacity, but their handling capacity is under big opening steel screen for max. water flow. It has no meaning for clients to know the real mud capacity.
2) GN Solids Control utilizes high G force oil field shale shaker to treat drilling mud. The G force is up to7.5G, and it is adjustable. Furthermore, GN Solids Control offers high quality composite material or PU material replacement screens to suit for different mud condition. The composite material screen and PU material screen can last a much longer time than the traditional metal frame or steel screens. For other brand recycling system, maybe their shaker area is bigger, but their G force is small. It is only 4G or 5G. For the same screen area, its handle capacity is much smaller than GN Solids Control high G force shale shaker. So GN Solids Control shale shaker can handle a bigger mud flow with a smaller shaker screen area. It is more compact in design.
3) For the similar configuration, GN Solids Control price should be very competetive. GN Solids Control are the original mud system manufacturer. All equipment inside the system are made by GN. There are many companies, especially the rig companies, they do not make separation equipment, they buy equipment from others, and they only build the tank.
4) Per our understanding on some U.S mud system brands, their system price is not higher, but their system is too much simple. They care too much on compact design and ignore the performance. But GN Solids Control ensures the performance first, based on the performance; GN Solids Control tries to make it more compact. That is why many customers choose us after compare with U.S and German brand.
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Published: 04 September 2017
After 2-months hard working, finally, GN Solids Control dispatched the full set helicopter lifting mud tank system. The total system including 11 modular as below:
1) There are 9 ea full functional mud tanks, complete with pipelines, walkways, ladders, guards, vales, electrical control systems, sun & rain sheds, and other necessary accessories.
2) 2 ea transportation frame for equipment and spare parts lifting and shipment.
It is a very special and difficult project. Every design, no matter how small, showed be caculated carefully, every spare parts and accessories should be chose from famous brand. Every design is new made, while the leading time is very very tight. Normally, for this kind of project, it should take a couple of months only to make sure the design drawings, not consider the manufacturing. But as the end user have strict time schedule, it cannot be changed. In order to support client for the project, GN people works for 7 and 24 hours, and finally finished the while system within a short time.
Why we say this oil rig mud system is very special and difficult? Below is some features of the system:
1) As the whole system is designed for helicopter lifting standard, the total weight of every single modular should be not more than 9 tons, but it is on condition that the storage volume and strength should be strictly ensured.
2) Furthermore, as the reason of safety and to comply with the HSE standard, every modular must be strong enough for helicopter lifting. And the lifting point should be specially design to suit for helicopter lifting. It must be strong enough and should be keep balance during lifting. Every design should come from strict calculated.
3) Every components of this mud tank system are chose from high quality and famous brand, like valves, unions, bearings, lights, motors, paint, etc…
4) All pipelines are made from SS316L for longer lifetime.
5) All welding jobs of this system should be complied with ASME standard, and should be tested by NDT.
6) Coating & Painting are chose from worldwide famous brand PPG
This projects give GN much experience on helicopter lifting system design and manufacturing. GN can offer more professional and fast supporting for any new helicopter lifting project in the future. Welcome customers contact GN Solids Control for any inquires.
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Published: 11 August 2017
500GPM is a most popular size mud recycling system for HDD and water well drilling rigs. Recently, GN Solids Control dispatched a full 500 GPM mud recycling system for a VIP customer. This is the 4th mud system for this customer. They will use the system to match their Horizontal directional drilling rigs (normally called HDD rigs) for construction field.
The system is combined with below equipment:
1) 1 set linear motion shale shaker GNZS594E-HB with 528GPM capacity. It is a 4-panel shale shaker with GN special design composite material screens. The composite material screen lifetime is nearly more than double compared with the old type metal frame screens. But GN composite material screen price is just a little bit higher than the old technology metal frame screens.
2) 1 set mud cleaner combined with a underflow shale shaker, 10 inch desander cones and 4 inch desilter cones. It contains 2 stages separation. The mud cleaner can remove solids above 27microns.
3) 2 sets centrifugal pumps are used to feed for the desander and desilter. The centrifugal pump is GN upgraded design. The impeller and pump casing is made from wear-resistance material for longer lifetime and to suit for hard materials. Furthermore, the centrifugal pump design is interchangeable with Mission Magnum pump. Even all the spare parts are interchangeable with Mission Magnum pump. So many customer can order GN centrifugal pump to replace their old Mission pump and order spare parts from GN.
4) 1 set of mud tank complete with pipelines, walkways, guardrails, ladders, electrical control system, lighting system, etc… The mud tank is with the same dimension of a standard 20ft container. All clean gate, values, etc… are insert type in avoid oversize. It can avoid to destroy any tank wall accessories during shipment. And customer can use standard container track for shipment.
5) A 20ft containerized skid for fast movement and easy lifting. The skid is used to mount shale shaker and mud cleaner. All pipelines are connected by fast connectors for east install and remove.
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Published: 04 August 2017
As a leading brand GN Solids Control will come for SPE Offshore Europe this year. The time of the show is 5th ~ 8th Sept. It is the first time GN Solids Control comes for SPE Offshore Europe. But GN Solids Control already has a good sales record for UK and for Europe.
GN Solids Control will take the high quality replacement screens for SPE Offshore Europe exhibition. GN Solids Control makes high quality replacement composite material shaker screen for most of the popular shaker models, like for Derrick shakers, Swaco shakers and Brandt shakers.
SPE Offshore Europe is the leading exhibition for Engineering and petroleum on oil & gas field. Around 50000 visitors and over 1000 exhibitors from +150 countries will come for the show. The SPE Offshore Europe will be hold at AECC (Aberdeen Exhibition & Conference Centre), Exhibition Avenue, Bridge of Don, Aberdeen, AB23 8BL. It is a good chance for the petroleum field suppliers to meet with his potential customers, to communicate with their peers. And it is also a good chance for the suppliers to know the new trend and development of this field.
Besides the SPE Offshore Europe exhibition in UK, GN Solids Control will come for all the international big oil and gas field exhibitions, and many professional exhibitions in certain regions. Below is the exhibitions GN Solids Control will come and already came for:
1) CIPPE oil show in Beijing in March, It is second largest oil show in the world.
2) OTC oil show in March in Houston. GN Solids Control and GN Solids America comes for OTC oil show for over 5 years. GN Solids America is the 1rst Chinese solids control brand open brand company in USA.
3) MIOGE exhibition in Moscow in June. It is the largest exhibition for Russian countries.
4) ADIPEC in Nov. in Abu Dhabi. UAE is a center city for petroleum field. Most international huge oil company, drilling company, petroleum company and services companies, they will open offices in UAE. Visitors and exhibitors comes from Middle East, Africa, East Asia and Europe comes for the big event.
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Published: 28 July 2017