GN Solids Control has been providing drilling waste moving equipment to global clients for many years, last week GN Solids Control finished manufacturing of 10 sets screw conveyors and 8 sets screw pumps with control boxes for a African drilling waste management company.
1.Screw ConveyorGN Solids Control provides 7 sets of variable speed screw conveyors, model GNSC12B-24V. All these screw conveyors will be used to collect the drill cuttings discharged from shale shaker, mud cleaner or desander, desilter. All these screw conveyors are manual controlled to change the rotating speed. GN made screw conveyors are wear resistant and can be use for long time drill cuttings transfer without weariness. 2.Screw PumpGN Screw Pump is a positive displacement pump. It is mainly used as decanter centrifuge feeding pump. GN Solids Control only used German made main pump body, brand Netzsch. And GN Solids Control provides the motor, reducer and supporting skid to equip with the pump body. GN Solid Control provides 8 sets of variable speed screw pumps include 6 sets GNG30B-075V and 2 sets GNG10B-040V.
3.Control BoxGN Solids Control is able to provides IEC Ex, ATEX, CNEX explosion proof standard control boxes, suitable for Zone 1 or Zone 2 working environment. GN Solids Control made control boxes can be also equipped with AC to using in hot working site like Africa and can be also used in cold winter. Above screw conveyors and screw pumps will be delivered to client’s site very soon by sea. This is a repeat order, we are happy to see they are satisfied with GN made equipment. GN Solids Control has been providing thousands of screw pumps and screw conveyors for worldwide clients since the beginning of established. Beside them, GN Solids Control also provides turkey solutions for solids control and drilling waste management systems.
Solids Control and Waste Management are two most popular topics when speak of drilling mud treating. As a leading solids and liquid separation equipment manufacturer, GN Solids Control has been working on providing drilling waste management systems to global oil and gas drilling service companies for many years. This week, GN Solids Control finished manufacturing of 3 sets of VFD decanter centrifuges, 2 sets cuttings dryers with auxiliary skid and screw feeding pumps for a Nigerian client. 1.GN VFD Decanter CentrifugeGN 14 inch bowl centrifuge is the most popular one in drilling waste treating industry. And GN Solids Control also provides 18 inch and 22 inch bowl for larger flow rate treating usage. When the 14 inch bowl running at high speed, fine particles in the drilling slurry can be removed. Clean drilling mud can be reused by adding new bentonite or barite. 2.GN Cuttings DryerGN cuttings dryer is using in front of the decanter centrifuge, it is usually used to collect the drilling cuttings discharged from shaker, desander and desilter. GN Solids Control has 3 sizes of screen baskets, all made of SS and well checked on dynamic balancing. GN cuttings dryer are especially designed to treat OBM and SBM. In some situations, WBM can be also treated although the treating performance varies a lot. 3.GN Telescopic SkidAll the above 3 sets decanter centrifuges and 2 sets cuttings dryers, GN Solids Control provides telescopic skids to hold them in the right working height. GN made skid company with HSE standard, ladders and guide rails are easy to fold when relocate.
4.GN Screw Feeding Pump Decanter centrifuge needs screw pump to feed drilling mud into the inlet pipe. And it is important to flush thoroughly after every day’s work. Cuttings dryer is usually feed by screw conveyor or gravity. While it also need a flushing pump such as the screw pump to clean the screen basket from blocking.
GN Solids Control manufactures different types of transfer pumps, include vacuum solids pump, submersible pump, centrifugal pump, screw pump etc. Each pump is suitable to use in different working conditions. As one new technology, GN Vacuum Pump was especially designed to move high solids content materials with big density or viscosity. This month, GN Solids Control provided 2 sets vacuum loading solids transfer pump to a European client. GN Vacuum Pump is an air driven pump, it can be used in any explosion environment. Material such as mining tailings, drilling wastes, industrial slurry, chemical powders, construction aggregates, oil sludge, kitchen wastes, dredging slurry etc. This European client has been working on mining industry for many years, they will use GN vacuum pump to transfer the mining tailings. Totally 2 sets GN vacuum pumps are purchased, one 20B for easy move and one 40B for fix usage. GN vacuum pump is able to move any flowable materials like mining tailings. Traditionally, most of the customers use belt conveyors while the effective transfer length is the belt length. To use a vacuum pump, it can move materials to max. 1000 meters far away from the pump. Consider the working principle is air in to bring materials into the pump shell, and air out to discharge, GN vacuum pump is a non-continuously working pump, however multiple pumps can be used as a group to provide constant flow. One offshore drilling mud company uses 4 GN vacuum pumps, all located in a 40Ft container. In and our is controlled by the small manual switches on the control panel. At the discharge port, air pressure is very large, GN Solids Control has two options: one is the rotating feeder and the other is triple skid station. After these 2 vacuum pump fully tested, they will be delivered to this European client. We are excited to have these two pumps to solve the problem.
GN Solids Control has been providing thousands of solids and liquid separation systems to civil contractors from TBM, HDD, Trenchless, Piling industries, equipment include shaker, desander, desilter, and decanter centrifuge. During the last two month, GN Solids Control has been busy manufacturing one large mud decanter centrifuge system for a TBM engineering company. Now with all water testing, this TBM slurry treating system is ready to deliver to the work site. This GN mud decanter centrifuge system mainly includes:1.GN 30 inch Bowl Decanter CentrifugeGN 30 inch bowl decanter centrifuge GNLW764A-VFD is the largest size GN can build now. GN Solids Control also has the other bowl sizes, such as 22 inch, 18 inch, 14 inch and 9 inch. When solids around 20% in the slurry, GN centrifuge is proven to treat up to 120 m3/h. Solids larger than 5 microns can be removed by using this GN 30 inch bowl centrifuge. Water cooling to keep the two main bearings from hot temperature. Tungsten inserts to protect the solids ring from weariness, and screw propeller is welded with tungsten tiles to wear-proof. 2.GN Automatic Dosing UnitAs we know only use mechanical separation is not able to remove all fine particles less than 5 microns, so a chemical dosing unit is necessary to add flocculant together with the slurry. GN automatic dosing unit GNW-6000L is able prepare 6000 l/h flocculant, with two screw dosing pumps: one for feeding and one for backup. 3.GN Screw ConveyorSolids discharged from the centrifuge is collected and transferred by GN screw conveyor. Supported by GN telescopic skid to adjust the working height. Screw flights are using wear-resistant material, outer shell is using reinforced supporting frame. In case of blocking, GN screw conveyor can rotate counter clockwise to push the solids. 4.GN Mobile ContainerTotally 2 standard containers are used to hold the centrifuge and the chemical dosing unit. A safe and good working environment is provided as air conditioner are fixed inside these 2 decorated containers. During working, two containers are piped with the centrifuge one on the other to save the space. And fixed with lifting pad, easy to move and relocate.
GN Solids Control delivered another 2 sets of 14 inch bowl decanter centrifuges to a South American oil service company. After the online training, clients have begin to use these 2 centrifuges to treat the drilling mud. GN Solids Control has been providing decanter centrifuges to global clients for decades, until now over 85 countries and regions have GN Solids Control and Waste Management Systems running successfully in thousands of work sites.
As for these 14 inch bowl decanter centrifuges GN Solids Control provided to South American rig site, client provides high remarks on GN centrifuges’ excellent separating performance and stable working status. 1.GN 14 inch bowl centrifugeGN Solids Control manufactures different bowl sizes of decanter centrifuges, among them 14 inch bowl is the most popular one. It is largely used for drilling mud solids control as it has wide range working speed up to 3900 rpm. These 2 sets centrifuges GN provided are both variable speed, all the key working parameters like rotating speed, differential speed etc can be changed easily on HMI tough screen. And running status alarms can bring operators attention to guarantee the centrifuge running in good condition and avoid any possible risks. Usually 2 sets centrifuges are working under middle rotating speed and high rotating speed, the first centrifuge removes big solids as much as possible by volume while the second centrifuge removes fine solids as much as possible by size.
2.GN screw feeding pumpFor these 2 decanter centrifuges, GN Solids Control equipped with screw feeding pump. Sometimes, submersible pump can be also used. The good point of using screw feeding pump is every screw it can pump a fixed amount flow rate, so it is linear relation with the speed. GN Solids Control VFD box can control the pump flow automatically in order to protect the centrifuge’s separating performance. When monitoring an abnormal current increase of the pump motor, VFD will down size the feeding volume to a certain amount; if the current continues to grow, the feeding flow rate will get smaller again.