GN Solids Control provided some sets of hydrovac slurry treating systems in North America. By using one set of GN hydrovac slurry treating system, it can help to treat 30~50 truckloads every day.
Today we would like to share some questions our customers have, hopefully if you have similar questions, you will also find answers in the following:
1.What do you think about us pumping clean mud through these nozzles? We are very concerned about preserving water! Can we possibly re-direct mud from GN submersible slurry pump GN50YZ40A-10 on coarse shaker tank to introduce into flush nozzles?
Suggest you pump the water discharged from GN decanter centrifuge to flush, or at least use the water from the desilter tank. Too many solids in the coarse shaker tank, might block the nozzles. 
2.What is your experience with functionality of guillotine valve critical to control feed to coarse shaker? We add motor actuation to this valve.
According to our former experiences, our customers usually keep the valve in a normally open status, which is seldom adjusted. Slurry discharge is controlled by the hydrovac truck. It's good to use a motor actuation for sure, as long as the coarse shaker can treat all the feed slurry, you can leave the valve fully open.  But use motor actuation is option for high configuration system.
3.What do you think about install of removal grizzly bar sets at grade above square mesh for safety/ease of picking out rocks, trash,etc..? 
In our hydrovac slurry treating system, we fixed 2.5inch opening gratings to catch rocks. Do you want to add a second grating with smaller opening？GN opening gratings also help to protect the coarse shaker.
Now all those GN hydrovac slurry treating systems running well in customers’ work site. If you are feeling headache for treating hydrovac slurry, come to GN Solids America for your customized solution.

GN Solids Control has been manufacturing decanter centrifuges for many years. GN 9 inch centrifuge as one of the smallest rotating bowls centrifuge, it is widely used in diamond drilling, mining slurry treating area and lab scale slurry treating etc.
Before GN Solids Control only provides one model 9 inch centrifuge that are mainly suit for small volume treating such as diamond slurry treating. Now GN Solids Control is happy to announce that GN 9 inch centrifuge also has 3 different models:
1.GN P Series
GN P series decanter centrifuge is also called GN dewatering centrifuge. The beach angel is designed at 11 degree. It’s mainly designed to use in the following area: drilling mud, oily sludge, sand washing etc.
2.GN Y Series
GN Y series decanter centrifuge is called GN Separation centrifuge. Beach angle is 15 degree. GN Y centrifuge can be perform well in chemical slurry, fruit juice, milk treat.
3.GN C Series
GN C series decanter centrifuge is called GN Clarifying centrifuge. Beach angle is 20 degree. It is suitable for protein, beverage, edible oil etc.
All the above centrifuges are driven by 2 main motors, better than the former version with only one driven motor. Centrifuge rotating bowl length also increased in order to have a higher treating demand.
GN 9 inch centrifuge also has 2 control mode: one is fix speed control and the other is VFD control. Not the sames as those big bowl centrifuge, now GN Solids Control mainly provided 9 inch centrifuge with the VFD control box without HMI, which is optional.
In order to protect the centrifuge well, GN Solids Control also provides temperate sensors and vibration switch to monitor the 2 main bearings’ temperature and abnormal vibration of the rotating bowl assembly.
If you need any centrifuge, please connect with GN Solids America LLC for the most cost effective solution. Email: This email address is being protected from spambots. You need JavaScript enabled to view it. .

GN Solids Control just exhibited several vacuum pumps in CIPPE show, and in the coming Houston OTC show, GN Solids Control will also exhibit a vacuum pump.
GN made vacuum pump is mainly used to transfer oil sludge which has high solids content as well as large viscosity.
GN Solids Control manufactures 3 different models vacuum pumps, include 10 m3/h, 20 m3/h and 40 m3/h. GN Solids Control manufactures different types of feeding pumps, such as screw pump, centrifugal pump, submersible pump. Most GN pumps are electrical driven or hydraulic driven, while for the vacuum pump it’s air driven. Need to use an air compressor to provide constant air, different models need different air feeding flow rate.
GN vacuum pump can work continuously, 2 control methods: manual control or automatic control. The 10 m3/h and 20 m3/h vacuum pump are both fixed with wheels for convenient move, and the 40 m3/h vacuum pump is fixed and strengthened by a frame which can be moved by forklift. The max. Size particles can be transferred by vacuum pump is 75 mm with the solids content of 80%.
GN vacuum pump suck and discharge every other seconds, in order to work continuously, several different vacuum pumps can be matched together to work as a whole unit. Last year, GN Solids Control provided 2 sets whole systems that working an offshore drilling rig sites. Each set has 4 sets vacuum pumps and all put in one 40FT size container.
Based on the transferred material or slurry, GN Solids Control provides different pump materials, such as the contact fact of the inlet and outlet as well as the air valve are optional for SS 316, and the whole pump shell can be also made by SS 316.
Feel free to connect with us if you have some headache when trying to move some sludge, GN vacuum pump probably be your best choice.

The movie of Green Book is a great success. It’s a dark period that we should never forget. Realized that we also need to cherish that how wonderful it is to have equal life for every common person. The movie also tell us that never make judgement by appearance, what most important is a human being’s real heart. Every good human deserved to be fully respected.

Today, we would also like to give a story of GN Solids Control version of Green Book.
It’s well known that North America especially USA has many long history solids control and waste management equipment manufacturers. GN Solids Control opened GN Solids America LLC in 2013, compared to those decades manufacturers GN Solids America indeed is a baby company.
Many drilling contractors before they only use USA made or European made solids control equipment in their oil & gas drilling rigs. From the bottom heart, some contractors or some companies they thought only USA made equipment can work successfully to get a clean drilling mud. And also China made stuff is cheap without good quality.
But the thing is China is also has many advanced technologies, we are not talking to use cutting edge knowledge to make satellites or rockets, we are using talking about thousands of hard working and creative Chinese equipment manufacturers. Among them, GN Solids Control is definitely the top one that provide solids control equipment includes shaker screens.
Shaker screens are just wearable parts, they play a vita important role to separate different size particles from the drilling mud. GN Solids Control is only devoted to provide the most cost-effective products. We knew some customers highly doubt that GN shaker screens can did a good job, so we always suggest customers to run a parallel testing by using OEM screens and GN screens. We are not talking in 100% situation, at least in 90% situation, GN Solids Control shaker screens did last longer than OEM screens but with a much more competitive price.
Sometimes, we just need to earn the reputation by ourselves. This is the Green Book of GN screens. Welcome to give us a try!