GN Shaker Screen is a subcompany of GN solids control which is API Q1 certified company.
GN 9 inch Centrifuge in Houston, TX
GN Solids Control manufactures different rotating bowl sizes of centrifuge, which cover the 9 inch bowl, 14inch bowl, 18 inch bowl, 22 inch bowl and 30 inch bowl. Different centrifuges are using in different area. Today we would like to give a detail introduction about GN 9 inch bowl centrifuge which we also called baby centrifuge or mini centrifuge.
GN 9 inch centrifuges are largely using in diamond drilling, core drilling, label scale slurry treating as the flow rate is around 30 gpm. Every other years, GN Solids Control upgrade its equipment in order to have a much better working performance. Now the 9 inch centrifuge GN Solids Control manufacture is the D version which comes from the original A version gradually.
GN 9 inch centrifuge bowl is also made of duplex stainless steel by centrifugal casting like the other GN bigger bowl centrifuges. There are mainly 2 models: one is fixed with single driven motor and the other model is driven by 2 separated motors.
GN 9 inch centrifuge also provides fix speed control and variable speed control to choose. Usually, if you only treat one slurry, use the fix speed is more cost effective, anyway it can also change speed by using different pulleys and belts. While the VFD is more convenient to adjust the rotating speed on the control box.
GN Solids Control is also open to provide only the centrifuge rotating assembly without motor and centrifuge foundation. Customer can choose to make it their own brand by assembling motors and paint in different colour with their own logo.
Every year, GN Solids Control manufactures and sells about 300 sets decanter centrifuges, among them 50 sets are GN 9 inch bowl centrifuges.
GN 9 inch bowl centrifuges are very popular in North America and South America, many local diamond drilling companies or mining slurry treating companies are using GN made centrifuge. 
Sometimes, if there are too many large particles in the slurry, a shale shaker will be highly recommended to add in front of the centrifuge.
GN Solids Vacuum Pump
GN Solids Control manufactures different kinds of pumps including vacuum pump, submersible pump, screw pump and centrifugal pump. As one of the newest transfer pumps, GN Solids Control vacuum pump can transfer a large variety of sludge, especially sludge with high content solids and large particles.
By using GN vacuum pump, solids less than 75 microns can be transferred, and max. Solids content is 80%. GN Solids Control manufactures 3 models: GNSP-10, GNSP-20 and GNSP-40, flow rate is 10 m3/h, 20 m3/h and 40 m3/h separately..
GN vacuum pump is a air driven pump, need to have air flow when working, so an air compressor is mandatory. Due to GN vacuum pump is composed of mechanical parts and pneumatic parts without any electrical components, it can be used in any explosion-proof environment includes IEC, ATEX Zone 1 or 2.
GN Solids Control shipped 4 sets vacuum pumps to Africa weeks ago. This customer ordered 2 sets vacuum pumps with wheels which is GNSP-10 and GNSP-20, also 2 sets skid mounted larger pump GNSP-40. Customer will use these 4 pumps to transfer drill cuttings that discharged from shaker, desilter and desander. Also the smallest pump GNSP-10 is used to collect and clean drill cuttings fall to the ground during moving. 
GN vacuum pump inlet need to within 8 m in order to have a better separating performance when moving slurry/sludge. Two timers are fixed on the control box which can be rotated easily to adjust the working time. Suck and discharge time is set at a certain no. Before leave factory. 
GN vacuum pump actually is a off and on transfer pump, it sucks the slurry first and then switch to discharge, suck and discharge takes turns to work. In order to meet customers demands, GN Solids Control provided several different types of inlet ports and outlet ports for customer to choose, such as when transfer the drilling cuttings discharged from cuttings dryer, cuttings can fall into GN vacuum pump directly, while the discharge outlet is connected with a rotating port for cushion.
GN Offshore Drilling Mud Treating System for COSL Offshore Rig
GN Solids Control equipment has provided thousands of solids control systems that used for onshore and offshore drilling rigs. As we all know, GN Solids Control has manufactured and provided solids control equipment to more than seventy countries and regions.
It’s relative easier to provide solids control systems for onshore drilling rigs, while it’s a little more complicated when using for offshore drilling rigs. Today we would like to share one solids control system that we provided to a COSL offshore rig.
It mainly includes these treating equipment: shale shaker, mud cleaner, decanter centrifuge, mud tank, centrifugal pump and screw conveyor.
1.Shale Shaker
GN shale shaker is one of the most cost-effective shakers in the world. GN shaker deck is all stainless steel. GN patented C-type groove is using 2.8 mm thickness SS, which is inserted with rubber to have a long time protection of shake screens. Also GN Solids Control made varieties of shaker screens includes GN own screens and the other popular sizes.
2.Mud Cleaner
GN mud cleaner is a 3-in-1 treating unit: GN shaker, GN desander and GN desilter. It is a 2 phase treating unit as desander separate solids larger than 55 microns and desilter eliminate solids larger than 25 microns.
3.Decanter Centrifuge
GN decanter centrifuge plays a very important role in drilling mud separating. GN Solids Control provides different sizes bowl centrifuges which are widely using in barite recovery, solids control , thickening and dewatering. GN Solids Control provides VFD control box that suits for IEC Ex, ATEX explosion-proof environment. DNV lifting certificate is also provided for the offshore usage. 
4.Mud Tank
GN mud tank is the storage tank to keep the drilling mud and also the foundation of all the above treating equipment as they will all fixed on the top of the tank. Centrifugal Pumps and Screw Conveyors are also provided in this system as auxiliary treating equipment.
