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Nov 17

GN have rich experience on Oil Sludge Treatment, and have sent many different systems to various sites, with 3 standard model of oil sludge treatement system, whist keep ourselves open for virious of different sit requirement. For the biggest model OST we have, 22in decanter centrifuge is one of the important equipment.

GNLW554EP is type solid bowl decanter centrifuge with bowl diameter 22 inch and L/D ratio 4.2. Below features make it performs excellently onsite.

1. GN EP series decanter centrifuge is used for dewatering of the slurry with high solid content. Therefore for all the solids touching parts in the bowl assembly, the tungsten carbide would be adopted for wearing protection. The screw blade is full welded with tungsten carbide plate 4mm thick. Slurry distribution port and solids discharging port also protected with tungsten carbide bushing. To avoid the wearing of the bowl surface caused by solids building up at the discharging port, the scrapers are installed to scraping off the wet solids.

2. Large L/D ration can make the slurry stay longer inside the bowl for better classification.

3. Centrifugal casting technology to make the bowl material distribution more even for better dynamic balance.

4. Lubrication oil station system continuously lubricating and cooling on the bearing ensures the stable running.
For this model, we also get different options, if you need better result, and willing to pay a bit more then the higher L/D ratio is a much better choice. Well in anyway, if you got any doubts, just ring GN sales team, or drop an email.

written by desander desilter

Oct 25

To go out and meet with client, in person, is now an very important way for GN, so rather than sending emails, make phone calls, GN is trying to be more REAL. So the best way is help you meet with GN people, check GN equipment. So one of the many things we are doing is go to the exhibiton.

In this exhibition, GN is bringing a 9in small decanter centrifuge, which can hopefully help you see and feel GN’s prodcuts.    GN decanter centrifuge have been delivered to mining site in Australia, for coking coal dewatering, garnet mining etc., also coalbe methane, different drilling projects etc..   Partnering with AlfaWest Australia (http://alfawest.net/), GN is now able to offer more local service for the decanter centrifuges.

GN Company would attend exhibition Ecomondo 2019, in Rimini, Italy, dated on November 5-8th, with Booth No.010, Hall D2.

ECOMONDO Exhibition is a professional exhibition focusing on recovery of Materials & Energy, Contaminated Site Recycling, Sewage & Solid Waste Treatment, and Sustainable Development. And it turns to be more attractive around the world, about 80,930 visitors from 66 countries, 98,000 sqm gross exhibition area, and 1,022 exhibitors from 30 countries worldwide. 

ADIPEC, Abu Dhabi International Petroleum Exhibition Conference, is one of the largest events for oil and gas industry. In recent years, GN Solids Control almost attended this show every year. This November, GN will again bring equipment and show there. All visitors are welcomed to visit GN booth and learn more about GN Solids Control.

Please keep below information and easily find GN at the show

Show Name – ABU DHABI International Petroleum Exhibition & Conference
Show Time – 11-14 NOVEMBER 2019
GN Booth No. – 10514

This year, GN will bring below equipment to the show, all the equipment is widely used in oilfield. GN is committed to providing the qualified products to ensure the stable working and safety operation.

written by desander desilter

Oct 20

GN solids control is committed to providing the qualified equipment used in oilfield for drilling mud recycling. With over ten years’ experience in designing and manufacturing the mud recycling equipment, GN product has been proved on site with stable performance and low maintenance. Recently, GN finished one batch mud recycling system for a client from Russia.

In mud recycling system, the decanter centrifuge is the last stage separation equipment used to remove the fine solids or cuttings. Before the decanter centrifuge, there are primary shale shakers, cyclone unit equipment to remove the coarse solids, so that the decanter centrifuge can be protected in the largest extent. In the petroleum industry, GN decanter centrifuge can be used as for fine solids and cuttings separation in solids control system, barite recovery, and the oily sludge treatment system for solid-liquid 2-phase separation. GN decanter centrifuge is with below features.

1. High running speed available with fixed speed starter and VFD control panel with explosion proof certificate for hazardous area.

2. Bowl material adopts the duplex stainless steel processed by centrifugal casting technology to make the bowl much denser for better dynamic balance.

3. Protection on easy wearing parts like screw propeller using tungsten carbide plate, mud distribution ports using tungsten sleeve, solids discharge port also using tungsten carbide sleeve.

This client also ordered GN centrifugal pump, also called sand pump, for mud transferring. In mud recycling system, the centrifugal pump is with various applications.

1. Feeding pump – the centrifugal pump can be used as the feeding pump for de-sander and de-sitler cyclone to make the cyclone with a sufficient power for centrifugal separation happens in cyclones.

2. Mixing pump – When adding the mud chemicals into the mud system, the centrifugal pump can be used to circle the mud from mud tank and take the chemicals back into the mud tank. The impeller can also shear the mud chemicals.

GN solids control is able to provide the whole line of solids control equipment and even turnkey mud recycling system. If any request, please feel free to contact with GN.

written by desander desilter

Oct 20

Another shaker skid now is ready for its trip to India, our company strategy now is of aid to this kind of business, whoever is able to build tanks by themselves, we offer the equipment, we both do what we are good at, and it eventually increase the strength for compete for both parties. Shale shaker is the first stage cuttings removing equipment in the mud recycling system for coarse solids separation. Thus the performance of the shale shaker will to a certain extent affect the performance of the subsequent equipment. According to the required treating capacity of the solids control system, the quantity of the shaker unit equipped varies.

In mud system, the shale shakers are always installed on the mud tank so that the separated drilling fluids can be collected and transferred to following equipment. The shakers unit fabricated in this order is triple shale shaker design that puts 3 unit shale shakers on a same skid. All the 3 shale shakers can be lift to put on top of the mud tank together that greatly increases the installation and dismounting efficiency. In the meanwhile, GN also equipped mud distributor for the triple shale shaker. The mud distributor will collect the drilling mud from the rig to firstly reduce the pressure of the mud impaction and evenly distribute to each of the shakers.In order to make the flow rate to each shaker adjustable, GN designs the gate plate at the inlet of shaker buffering box, thus the mud engineer can adjust the flow rate to each of the shakers. GN shale shaker is with simple structure for easy operation and full shaker deck heating treatment for high vibrating force. The independent produced composite frameshaker screen is fixed on the shaker unit for better separation performance and low cost on screen consumption. 

written by desander desilter

Sep 04

GN is going to complete the fabrication of two sets big bowl decanter centrifuge for an American client for construction slurry dewatering treatment.

The model GNLW764 is the largest decanter centrifuge GN can make currently. Client chose this model according to their treating capacity requirement. In the long run, the large model equipment will save the operating cost so as to bring more economic benefit. 

GNLW764, the 30 inch bowl diameter decanter centrifuge has been proved with good performance onsite. Last year, GN has already shipped two 2 sets same model decanters to Australia in the plant for coal tailing dewatering.

Features of the Big Bowl Decanter Centrifuge GNLW764

1. GN adopts the duplex stainless steel to make the bowl of the decanter, and the centrifugal casting processing to make it a better balance performance and denser material distribution to avoid casting bubbles
2. Inside screw propeller is from duplex stainless steel 2205. For longer working life and less maintenance, GN uses tungsten carbide plate and sleeve to protect the screw blade and mud distribution port. 
3. To protect the motor, GN equips the decanter with VFD control panel to start the machine from low speed to high speed gradually. This prevents the over electric current to burn the motor. On the other hand, a VFD control panel will help the operator to run the machine at different speed according to slurry condition and process purpose.
4. GNLW764 is using oil pump to feed lubricants to both of the bearing seats. The plate type heat exchanging system can cool down the lubricating oil with high efficiency. 

The client has already ordered several slurry dewatering systems from GN for their hydraulic excavation slurry treatment. This 30 inch decanter will greatly increase the client’s capability in treating the tough slurry. With the trust on GN, the client added order on the decanter supporting leg. Supporting leg is critical as the weight of the GNLW764 is almost 17 metric tons. 

For more information on GN large bowl decanter centrifuge, please feel free to contact.

written by desander desilter

Aug 26

GN shale shaker is the first stage cuttings separation equipment in the mud system, thus the importance of the shale shaker is imaginable. The performance of the shale shaker will affect a large extent the performance of subsequent equipment. 

What is the advantage of GN Shale Shaker?

  • Shaker deck is completely processed by heating treatment to bear the high vibration force. 
  • To ensure a good sealing performance, GN created the U-type groove and embedded rubber sealing technology, which provides excellent sealing effect and in the meanwhile makes the replacement of the sealing rubber easily. 
  • GN developed 3 technics on how to tighten the shaker screen by using the wedge blocks. Hammer pushing, ratchet spanner pushing and quick pressing. Customer can choose as per their preference. 
  • GN upgraded the damping rubber spring to make the steel spring and rubber bushing combined and unbreakable, which increase the safety and reduce the part quantity.  

What GN Shale Shaker are Doing

  • GN shale shaker is used mainly for drilling mud cleaning, by changing different type mud feeder, GN shaker can be used in oil drilling, HDD and waste cutting management.
  • The shaker mostly is installed on the mud tank for primary solids control. By changing to larger horse power vibrators, GN shaker can be used as the High G force drying shaker.
  • All GN shaker are designed to have the bolting hole of the cyclone frame, the standard installation dimension make the assembling of the mud cleaner much easier. 
  • To achieve a better mud recovery effect, GN developed the vacuum screen device that can connect with the last panel screen of the shaker. All GN shakers can install this vacuum screen system

written by desander desilter

Aug 04

GN Solids Control have been widely known for HDD systems, solids control equipment, oil sludge treatment etc., and now also working on CRI, TDU, and more diversifying different decanter centrifuges for all the industry separations.The offshore drilling mud tank system is a full function and self-contained design. It has all necessary equipment to process the drilling mud step by step. Per the different working principle, the impurities with different sizes in the drilling mud would be separated by different equipment. Equipment list of the Offshore Drilling Mud Tank System

  1. Shale shaker, with simple structure and adjustable vibrating G force, is used to remove the coarse cuttings in drilling fluids. GN connected the main shaker unit and the underflow drying shaker unit in mud cleaner to make larger capacity vibrating screen system, this reduced the footprint of the system, but ensures the flow rate.    
  2. This system has a centrifugal degasser that is used to remove the air invaded into the drilling mud. The degasser unit can effectively remove the air to ensure the property of the mud. This also guarantees the sufficient pressure of the sand pump in feeding the drilling mud to the cyclone unit of the mud cleaner. 
  3. Decanter centrifuge is used to remove the fine solids in the drilling mud. GN decanter has been proved with stable performance and easy operation procedures to meet the demand on drilling site. The material application in rotation part and protection design in wearing part greatly extends the working hours and reduces the maintenance cost.
  4. GN also equipped screw conveyer to collect the waste cutting discharged from above mentioned equipment. As on platform, collecting the drilling cutting is also an important job due to limited space.

It is good to have one more famous client in offshore, as a Chinese company, COSL have been supporting more and more on local suppliers, and after a few times cooperation with GN, they are now trusting more and more on GN. 

written by desander desilter

Jul 29

It is not arrogant, this is just the best team. If you are going to argue, you are in same position as me. In the first half of 2019, GN has achieved a fruitful result. In order to thank the employees’ hard work and enrich their culture life, GN Solid Control held the 2019 Tourism Culture Festival on July 15-16 in the beautiful fishing island of Qinhuangdao. The theme of this culture festival is “Smelting the team, surpassing ourselves; working together and being invincible.”

In the past many years, lots of people contribute a lot on the development, so either in the good days or bad days, GN stay focusing on top quality products, based on that, everyone is trying to do their best. The fishing island marine hot spring scenic spot is locating in one of the most beautiful eight major coasts in China. The beach has the characteristics of fine sand, slow beach, clear water and flat tide.

With the theme of “Appreciating the sand sculptures by boat, skiing on the sand and grass and suffering the waves, bathing in the hot springs and watching the sea, living in the villas and eating seafood”, the classic entertainment projects: racecourse, shooting range, sand-skiing, grass-skiing surf, beach motorcycle, Flying cars, water trapeze, marine animals, Ferris wheel, carousel, double flying, pirate ship, dream water village, circulation river and so on.

G show Hollywood film and television stunt show: a huge amount of money and the United States Hollywood stunt performance team teamed up to create the world’s top stunt show. The fishing island scenic spot was promoted to the national AAAA level scenic spot in 2019.

Expecting a fruitful 2019, and all the coming years.

written by desander desilter

Jul 22

Tank bottom oil sludge is a kind of waste mixture of oil, water and sand. However, if the oil and water could be recovered from the sludge, a great benefit would be obtained. This week, GN will finish the factory trail assembling and test for one set of oil sludge treatment system for an oil storage tank bottom cleaning project. 

Working Principle of GN Oil Sludge Treatment System

GN oil sludge treatment system is using a series of equipment to separate the oil, water and solid step by step; while in each specific procedure, the separation equipment will be different.

Brief introduction on each module of Tank Bottom Oil Sludge Treatment System.
1. Coarse shaker – a shaker unit is used as the first step separation equipment to remove the coarse solid in the oil sludge. GN uses the linear motion shaker with 2 vibrators to provide an adjustable G force. The hot water spraying tube could be installed on the shaker for better washing of the solids. 
2. Decanter centrifuge – the decanter is installed after the shaker unit for fine solids separation. Slurry treated by shaker contains lot of fine solids that need to be separated out under a higher G force. The decanter is an ideal equipment to do this job. 

3. Inclined plate clarifier – even the decanter centrifuge cannot 100% remove the ultrafine solids in the slurry. GN puts one inclined plate clarifier to collect the slurry discharged from the decanter centrifuge. Multi-plates inside the clarifier will speed up the ultrafine solid sedimentation to the bottom of the clarifier, in the meanwhile, oil and water mixture will overflow to the OWS.
4. Oil water separator – OWS is the last procedure of the separation, here the demulsified oil and water will be separated and guided to different vessel for storage. 

GN tank bottom oil sludge treatment system could also be equipped with dosing system module to make chemical solution that will be injected into the oil sludge for better demulsification performance. For more information on GN oil sludge treatment system, please feel free to contact with GN Solids Control.

written by desander desilter

Jul 18

GN is known as one of the solution provider especially for solids and liquid. One batch of solids control equipment was ready for shipping to a USA client who is doing the solids control business. The equipment included in this order is shale shakers and decanter centrifuge. 

Shale shaker and decanter centrifuge are two type solids control equipment with different working principle. The shale shaker separates the solids by using the wire mesh based on the solids size, while the decanter centrifuge separates the solids using the centrifugal force. Shale shaker is almost used for the coarse solids separation, and the decanter centrifuge is used for fine solids separation. Thus is the step by step separation system, the decanter centrifuge is always located after the shale shaker. 

GN shale shaker is with simple structure design and easy operation. The shaker deck is with full treatment to make is much strengthen to bear a higher vibration force. During transportation of the shale shaker, the shaker deck is fastened by using a fixing block and bolts, after arriving the site and before running the machine, just loose the bolt. GN shale shaker is fixed with composite frame pre-tensioned screen for long working life time. 

GN decanter centrifuge adopts the duplex stainless steel as the material of the rotating bowl for better machinability with centrifugal casting technology for better dynamic balance. For solid liquid separation, GN has a wide range decanter centrifuge models for different capacity and application. GN decanter centrifuge is now widely used not only in drilling fluids solids control system, but also in environment industry like waste treatment and slurry dewatering project. 

GN is able to provide the full series solids control equipment used in drilling mud recycling projects. In the meanwhile, more and more client coming from other industries will apply the solid liquid separation equipment. For more information on GN, please feel free to contact with us.

written by desander desilter

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