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Mar 29

2 more decanter centrifuges been sent to South America recently, GN Solids Control has provided more than hundreds of decanter centrifuges to global customers, as one of the most important regions for GN Solids Control, South American customers are using many GN 9 inch bowl centrifuges in the mining slurry treating industry. GN Solids Control also has some 14 inch and 22 inch bowl centrifuges in oil and gas industry for drilling mud treating.


9in decanter centrifuge can be used for many different applications, 
GN decanter centrifuge bowl is made of stainless steel by centrifugal casting. Solids discharge port is protected by wear resistant alloy ports, cylinder scraper and side scraper. Inside the rotating bowl, the screw propeller is fixed by tungsten carbide tiles along the edge for long time protection.Two main bearings of the rotating assembly is using world famous brand like SKF. Also the electrical control panel is using ABB, Siemens or Schneider etc.

written by desander desilter

Mar 29

2020 is not a good year to start, just we thought we lost Kobe Bryant was too hard to accept. Then suddenly we lost another important GN USA business partner. Life is just life, sometimes something happened without even give a hint. From Jan.the Coronavirus then came out of blue, we have to admit that many people thought it was just another flu we do not need to take care of it, but unfortunately the Coronavirus bring the worst result and show its evil face to human beings in a very short time. 

Until now (Mar.29th) there are 571,913 confirmed cases, almost all the countries in the world are effected. With nowadays fast transportation among humans, nobody can be unaffected by Coronavirus, 26,826 dies cases. Kindly notice, they are not just nos., all behind them are actual human beings and thousands of families. Many countries active quickly like China, Singapore, Korea etc to put people’s live on the top priority. While partial countries are still striving to find the best way to get everything under control. There are moments we are highly touched by our lovely and bravely doctors, nurses etc, they have been working strongly to fight against the Coronavirus and stand between the virus and normal people.

As a ordinary person, we should follow the health organization’s rules: wash hands frequently, keep safety social distance, wear masks when necessary, stay at home etc. Actually protecting yourself is also a good and effective to protect somebody else. When the Coronavirus spread way is cut off thoroughly, it will be time to defeat it. 

2020.03.27 Surgical Mask

GN Solids Control as a leading manufacturer on solids control and waste management system, we are willing to try out best to provide our minor support and help for all GN friends. Although it’s not easy to buy surgical mask, we are still trying to find as more as possible. Any GN friends, if you need any surgical masks, please do not hesitate to let us know. You may connect with your account manager to get free masks and free shipping. Also you may send your contact info and receiving address to [email protected] for surgical masks. We will do our best to send you some surgical masks as many as possible.

written by desander desilter

Mar 15

Middle East is one of the biggest market for all oil gas equipment suppliers, we have been doing well over there and lots of clients like GN brand and GN products. 

GN Solids Control is one of the earliest manufacturers in China that started to design and manufacture solids control and drilling waste management equipment.

We are proudly to say that GN Solids Control equipment are widely used in more than seventy countries and regions. GN Solids Control equipment are very popular in North America, Europe, Middle East and Africa as well as Asia. These drilling fluids vacuum degassers and mud cleaners are one of the repeated orders from GN old customers. Word of mouth positive feedback on GN Solids Control equipment and drilling waste management systems help GN to win more and more business.

Mud cleaner or called mud conditioner is a 3in 1 equipment, including desander cones, desilter cones, and a dewatering shale shaker. Normally used after the first stage, the shale shakers.

Vacuum degasser is a equipment to protect the pumps and as part of the safety requirement on site, after the fluid exposed, and in the following steps it won’t be fully sealed off. Then it is needed to get rid of the position gases.Shale shaker, mud cleaner, vacuum degasser, for oil gas drilling it is kind of our main business for a long time.

We keep upgrading our equipment details, yet seems no breakthrough really. But on the right track, doesn’t mean you have to catch people’s attention always. best way is let the equipment speak for you.

written by desander desilter

Mar 15

Based on what GN have offered, and many systems running for oil sludge treatment, we have summarised a standard system design, the whole flow chart as below:

Well this seems too complicate for many clients, and some clients may already got some equipment, in this process, before or after this process, what they will need is just some equipment to optimise their existing design.

This system we recently sent to Brunei is this type, they already got most of the staff they need, well need some process to minimise the solids waste before next step.

So here we go, a basic system for them: a shale shaker, decanter centrifuge, plus needed pumps and dosing unit to add chemical.

Oil Sludge Treatment Decanter Centrifuge Features

1. Bowl material adopts duplex stainless steel 2205 or 2304 with centrifugal casting technology for to make the bowl material much denser and better dynamic balance during actual operation.

2. Tungsten carbide plate or bushing installed on screw propeller, slurry distribution port and solids discharge port for protection purpose, so that to achieve a long service life.

3. Explosion proof certified motor and electric control panel are used for safety consideration when involving in the flammable oily sludge treatment.

We normally tend to have some standard design, as a start for the discussion. Well even a totally customisation need somewhere to start, so based on further communication on what you need, what you have, and find any possibilities to maximise the outcome, and minimise the input. Contact us if any projects.


written by desander desilter

Mar 01

To cut it short, you need to tell people your tunnel size, and the slurry flow rate. 

Based on where you are, the restriction for your dumping will be different, and the TBM supplier may have a different requirement on what size particles are allowed to goes into eventually, or the solids content. 

When we design the new system, the first thing we were trying to sort out is how to make good use of every step. If it is a full system like the big ones you have seen in oil gas projects, then it probably like this chart below. After scalping, then several steps of cyclones, each step come with some dewatering shaker screens.


However, You always will need to balance all the factors, a system that make sense, that cost reasonably, and work efficiently, AND NO ONE need a giant piece, shaking all the other needed equipment away. For TBM projects, space matters, and you bet it, the power consumption also always make sense. Contact us freely for more information. 

written by desander desilter

Mar 01

Recently we delivered few sets of vacuum pump to an offshore project. It is part of their process, transporting the drill cuttings. That is what this pump designed for, without limitation on the flowability, or worrying about dry-run etc. With different compositions, it can work on different purpose.

Now GN Solids Control manufactures 3 different models of Vacuum Pumps which are GNSP-40B, GNSP-20B and GNSP-10B. Max. Solids content for GN vacuum pump is 1000 m, and particles larger than 75 mm can be transferred successfully. As the largest model GNSP-40B, its flow rate reaches to 40 m3/h. Pump is fixed in a lifting frames and can be also moved by using forklift. While for the other smaller models GNSP-20B and GNSP-10B can be moved easily as they are designed with wheels.

For offshore, the pump can be used in many different ways, for transferring the solids, with proper cleanup appendix, it can be the cleaner for any kind of waste over there. And there is no need to electricity which is a fantastic thing, you only need mechanical engineer there.  

written by desander desilter

Feb 21

As we all know normally it takes a few steps to separate the hydrovac slurry, first step, scalping the big stones from he vacuum truck, many people from different site have already developed various ways of doing this. Afterwards is fine shale shaker, and cyclones after that. The final step would be the decanter centrifuge. Though there are many different alternatives, most of the site choose decanter centrifuges, as it is more convenient, take less space, and it is continuously working. With chemical dosing you can get amazing clean water, well not for drink.

ModelGNLW453C-VFDGNLW553C-VFD
TypeVFD Drive Dewatering Centrifuge
Bowl Dia18 inch22 inch
Bowl Length61 inch 71 inch
Bowl Speed0-2800RPM0-2500RPM
Dif. Speed0-45RPM0-45RPM
Main Motor55KW 90KW
Back Motor22KW 45KW
Torque7500N*M12000N*M
MaterialDuplex Stainless Steel Bowl
Screw Tungsten Carbide Tiles Protection
ApplicationUltra Fine solids removal.

Decanter centrifuge module include a telescopic skid for mounting the decanter centrifuge, a catch tank for centrifuge discharge water collection and a  centrifugal pump for water transfer.

Automatic chemical dosing unit with 3 compartment of total volume of 2000L is capable for preparing 2000L/H polymer flocculants. The chemical dosing unit is equipped with 3 agitators and 2 dosing pumps for feeding polymer to enhance the separation of ultra fine solids by  the decanter centrifuge.

Based on our experiences, in most of the hydrovac site, the solids content is very high, so to choose the right model and make sure it is working properly is very important. Contact us for advise freely.

written by desander desilter

Feb 09

Thank you all for caring about us, thank you all for your greetings. We are now starting to open the business. Most of us still been sealing off at home. While starting to get to work through cloud services. After knowing that there is not actually any vaccine yet, I guess this would be the only thing we can do. We are very sorry to inform our clients, partners who supported us, lots of staff have been delayed. We are trying to fix and catch up.

https://www.cdc.gov/coronavirus/index.html

written by desander desilter

Jan 08

It is a complete system with mechanic and electric, including 2 handling tanks,1 mixing tank, 2 storage tanks, 1 trip tank, 1 poor boy degasser, 2 trip pump GNSB4×3C-11J (11KW)、4 charging pump GNSB6x5C-13J(45KW) 、 5 feeing pump GNSB8x6B-13J(55KW)、2 shale shaker GNZS703F-SHBF、1 mud cleaner GNZJ703F-D2S12N、8 mud agitator GNJBQ110ED(F)11kW、2 jet mud mixers GNSLS45A、9 mud gun GNNJQ50-3X and lighting,walkway, railings.

The basic circulation would be: separate the cuttings by particle size; with trough on tank top, can do full circulation; degassing, weighing, mixing, agitating can be executed separately. Waterline can be utilized for adding water.

Mixing system is for fresh mud mixing, agitator and mud gun is to keep all the mud active. Trip pump and trip tank is to trip the drill hole, to check the mud loss.

2The Mud Circulation

From the drill collar, the drilling mud been transferred to the trough, then drop to the divider. By the valves, 2 shakers can be fed separately or at the same time. Another option is bypass the shaker, go directly to the sump or anything similar. After treated by the shale shaker, the mud goes to the first tank section, then it is picked up by a centrifugal pump, feed to the desander cones. After the separation in desander cones, the over flow comes to the second tank section, then again with another centrifugal pump, feed to the desilter cones. The overflow from desilter cones, goes to next tank section, If the mud need to be weighed, then that is where the mixing pump need go to. Normally the storage tanks, the mixing sections, are all be able to do mixing on each section, And then the mud pump suction begin from these sections. This would be a full circulation. It will be shown in PID drawing. Mud gas separator is a safety device, to remove the H2S before it goes to the separation stage. We would highly recommend with proper pipeline, lead the gas to some further area, at least more than 60m away

written by desander desilter

Jan 08

   1、System includes 3 phase solids control stage: a. shale shaker;b. de-sander separation to clean the particles bigger than 47μm. c.de-silter separation, to clean the particles bigger than 20μm.

hdr

   2、GNZS703F-SHBF linear motion shale shaker, c/w shaker screens:700×1250 made of composite frame, 3pcs, separation area up to 2.63m²;GNZJ703F-D2S12N using same spec shaker screens.

   3、Designed flow rate is:≤240 m3/h,rated capacity:220 m3/h.

Ambient temperature:-18°~50°.

4、For mud viscosity:≤80 S .

5、Allowed weather:rain, snow, fog etc

6、Designed for continuous working

7、Attitude ≤2500 m can fully operating, if ≥2500 m may effect the efficiency.

8、All equipment is standard products, complying SY/T5612-2007《Drilling Mud Solids Control Equipment》

9、The system is compact, flexible, easy for operate, safe and reliable.

10. Easy for transportation, in and onboard.

written by desander desilter

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