GN Solids Control make screw conveyors with auger diameter 10 inch, 12 inch, 14 inch, and 18 inch. Each screw conveyor can be laid either in horizontal or inclined with a angle less than 40 degree.

The most popular auger diameter is 14 inch, which is mostly used at oil and gas drilling mud systems to transfer drilling cuttings from drilling mud solids control shale shaker, mud cleaner, decanter centrifuge, and drilling waste management equipment, like high G drying shaker, vertical cuttings dryer. Etc… With different auger diameter, GN Solids Control can make various models with transfer length 12 ft, 24 ft, 36 ft and 48 ft.

The most popular model GN Solids Control sold for oil and gas drilling mud system is GNSC14-48, which with 14 inch auger diameter and 48 transfer length. The advantage of the model is that:

1) 48 ft transfer length auger is combined by 4 auger sections, each auger section is with standard transfer length 12ft. The job site operators can remove 1 middle section or both the 2 middle sections to use the screw conveyor with transfer length 24ft or 36ft.

2) Each section of GN augers are combined by hanger bearing and shaft assembly. It is easy and fast to assemble each section at job site, and the design is with less maintenance.

Unlike other auger suppliers, GN Solids Control hanger hanger hearing are assembly parts. Users can replace each part separately in case of need, they do not need to replace the whole hanger bearing unit while repair. It can reduce the maintenance cost much.

If not specified by clients before order, GN Solids Control screw conveyor is with fixed rotating direction, and it is equipped with a feeding port and a discharge port. In some cases, clients may need dual direction screw conveyors. GN Solids Control is capable to make customized screw conveyor with dual rotating direction. Operators and users can change the auger rotating direction at the auger control panel. And there will be 2 feeding ports and 2 discharge ports on the 2 ends of the special design screw conveyor. Operators and users can change the auger feeding and discharge direction in case of need.

GN Solids Control makes various sizes screw conveyor augers for oil and gas drilling field. The auger diameter has 10inch, 12inch, 14inch, and 18inch for optional. GN Solids Control offers augers with transfer length 12ft, 24ft, 36ft and 48ft, which is combined by standard 12ft per section.

The transfer length of GN auger screw conveyors can also be customized per jobsite request for carrying cuttings from solids control equipment in drilling mud solids control system eliminating water-jetting, like collect drill cuttings from shale shaker, desander, desilter, mud cleaner, decanter centrifuge. And then transfer to drill mud and drill cuttings waste pits.

GN Solids Control screw conveyor is also widely used in drilling waste management system, it can be used to feed cuttings to drilling waste management equipmente, like high G drying shaker, vertical cuttings dryer. And it can also be used to collect drill cuttings from high G drying shaker, vertical cuttings dryer, and high speed decanter centrifuge, and then discharge the cuttings skips (as well as waste containers).

The top covers of GN Solids Control screw conveyor can be made from metal plate, or gratings. Normally, it not specified by clients, GN Solids Control will offer metal plate type top covers. Some time, clients will prefer half metal plate and half grating covers. GN Solids Control can also offer. Clients do only need to appoint it before order. The top Covers on the top of GN Solids Control screw conveyor can be equipped with hinges on one side, and provided with locks or bolts on the other side. It is for easy open and close.

For safety, GN Solids Control offers full length Grab wire / pull cord switch connected to cable / wire rope looping on top of the auger covers. It is for automatic power trip when the top cover is opened up from closed position, or when automatic power trip while the top covers are not closed in right position.

GN Solids Control finished a package of oil base mud and cuttings treatment unit for an overseas client. The major separation equipped in the drilling waste management system is vertical cuttings dryer and high speed decanter centrifuge.

The vertical cuttings dryer model is GNCD930. GN Solids Control drilling waste Vertical Cutting Dryer applies centrifugal force to separate and recover oil based mud and cuttings, as well as synthetic base mud and cuttings.

The stainless steel screen basket with rotor assembly traps “wet” solids and accelerates them up 900RPM with G force to 420G. Usable drilling mud or oil slurry will be forced through the screen basket openings, and the oversize solids phase are extracted by the angled flights attached to the cone, which rotate slightly slower than the bowl. Tungsten carbide protects the scrapers from abrasive solids and ensures long operational life.

There is a gap with certain distance between the screen basket and rotor assembly, keep the accurate gap between them are essential for proper separation.

The decanter centrifuge model used in the drilling cuttings treatment system is 14inch, the model is GNLW363. It is the most popular size centrifuge model used in oil and gas drilling field. There are 2 decanter centrifuges used in the drilling waste management system. One centrifuge is used for drilling mud solids control, another decanter centrifuge is used after vertical cuttings dryer to further clean the recovered liquid phase. The 14inch decanter centrifuge design speed is 3900 rpm, and the typical bowl speed can up to 3600RPM. As the too fast speed request more frequency check and maintenance on the centrifuge. And if over 3200rpm, the high G force may damage the mud composite. But mostly when delivery from GN Solids Control factory, the max. Typical bowl speed is set up to 3200rpm.

The drilling cuttings treatment system is customized per client’s request. The vertical cuttings dryer and decanter centrifuges with accessory device are all allocated in a fabricated container for keeping temperature and for easy movement.

GN Solids Control makes full package oily sludge separation system for various types of oily sludge and oily waste. It can be used to treat oil sludge includes but not limited to oil sludge from Crude Oil tank cleaning sludge, oil sludge from Refinery plant waste oil sludge, and oil sludge from oil and gas drilling waste oil pit.

The most popular size Oil Sludge Treatment System made by GN Solids Control is GNOST-05 and GNOST-15. The related handling capacity is 5 m3/h and 15 m3/h. The handling capacity is specified by the decanter centrifuge and 3-phase tricanter centrifuge inside the separation system.

The principle of GN Solids Control Oil Sludge Treatment System is to use chemical to wash the oil sludge and with heating system to keep the temperature of internal materials 60 C degree to 70 C degree. The chemicals has maximum activities and can reach the best performance under the temperature 60 to 70 C degree.

After washing the oily slurry can be pumped to GN separation equipment to separate into oil, water and solids phase. The major separation equipment in GN oily separation system is shale shaker, decanter centrifuge and tricanter centrifuge. The shale shaker used in the oily sludge separation is a customized double deck shale shaker. There are jet nozzles around the the shaker deck for heating the oil sludge to keep it at a suitable temperate. On top of the double deck shale shaker, there are stainless steel anti-splash covers for protection the operators during system running.

The recovered water can be reused in the washing process inside the oil sludge separation system. After tricanter centrifuge separation, the BS&W inside recovered oil is with 2-3% (BS&W=Base Sediment & Waterin oil), it is clean enough for selling to the refinery companies. The discharged solids contain less than 2% oil which can be sent to biodegradation or thermal unit for final disposal if needed.

Clients need to note that, emulsified oil can only be treated after demulsification. If the oil sludge cannot be demulsified with demulsifier, the system cannot handle it.

GNCD930 vertical cuttings dryer is the major separation equipment which is used for drilling waste management. It is used to remove the particles below 3mm. GN Solids Control can offer 0.25mm, 0.35mm and 0.5mm opening screen basket to suit for various mud situation.

GN Solids Control vertical cuttings dryer is specially designed for OBL and SBM mud and cuttings. In some conditions, it can be used to treat WBM, but it is not applied for all WBM situation. High G drying shaker is the right equipment which is specially designed for WBM treatment.

Vertical cuttings dryer, as well as high G drying shaker, can reduce the liquid content in cuttings (WBM / OBM / SBM), to make the discharged cuttings comply with the requirement of environment protection; recover the valuable drilling mud and lower down the drilling cost. Generally, it can reduce the drilling waste, recover valuable drilling mud and reduce the cost for drilling.

During drilling, theoretically speaking, about 1 ~ 4 barrels drilling fluids can be recycled from each barrel of drilling cuttings removed by solids control equipment. Theoretically speaking, GN drilling cuttings dryer system consisting of Vertical cuttings Dryer could recycle about 1 barrel drilling fluids from 3 barrels drilling cuttings.

Besides vertical cuttings dryer, GN Solids Control make full line drilling mud and drilling waste management equipment.

GN Solids Control makes full package mud System to suit for oil and gas drilling, as well as non-oil drilling rigs, like as water well drilling, HDD rigs, Pipe jacking machine, CBM drilling, piling, etc… GN Solids Control is capable to design and manufacture complete line equipment for a total mud system which ensures better integration of the system, and ensure competitive prices.

The major separation separation equipment of GN Solids Control includes not not limited to: Shale Shaker, Mud Cleaner, Desander, Desilter, decanter Centrifuge, mud agitator, mud gun, Mixing Hoppers, shearing hopper, vacuum degasser, centrifugal degasser, various mud tanks, pumps, etc.

GN Solids Control makes mini size Sludge Vacuum Pump, the mini vacuum pump can be used to suck and transfer liquid, solids, powder, rocks, sands, oily sludge, non-oily sludge, and transferred to long distance.

GN Solids Control mini size Sludge Vacuum Pump is equipped with tires for easy movement at job site. While Solids Control mini size Sludge Vacuum Pump is used as vacuum cleaner, GN Solids Control will offer 3 types of suction head to suit for various type of industrial waste clean-up jobs.

GN Solids Control Mini Vacuum Cleaner is designed for industrial tough clean-up jobs. The mobile and lightweight suction tools make it efficient for the operation. The vacuum cleaner is air-operated to produce high vacuum for the suction and it can manual switch to positive pressure to discharge. Moreover, operators can set up the suction and discharge time to make it suction and discharge automatically.

Clients can choose the Suction hose length per job site situation. Most clients will choose 10m suction hose. The 10m suction hose is composed of 2 pcs 5m hose. The suction hose is 3 inch. GN Solids Control equips DN80PN10 type E stainless steel camlock at both ends of each suction. Clients are easily to increase or reduce the suction length by choosing the hose quantity. The suction hose is negative pressure hose, which should be able to withstand negative pressure of 85kpa. And the internal of the rubber hose must be good for wear resistance.

GN Solids Control Sludge Vacuum Pumps are 100% air operated. There is no electrical components. It is the safest in the industry, explosion proof and suitable for zone 1 applications. Besides, there is no internal workings / moving parts on the pump. It means more stable and less maintenance.

GN Solids Control make electrical motor driven centrifugal pump, screw pump, vertical slurry pump, screw conveyor to meet more various type material transfer. Clients can choose the transfer device based on his material situation and his demands. And also, clients can contact GN Solids Control sales team, tell them their demands. GN Solids Control will recommended them the most suitable solution.

Solids Control shale shaker which are used in offshore platform drilling rigs are different with onshore drilling rig equipment. Mostly, the jobsite may have special request on the explosion proof standard and on the lifting certificate.

It’s up to the rig request and the rig type. Some need marine explosion proof standard for motors and electrical control system, and special lifting certificate, some rigs do not need. Clients should specify their special request to suppliers before orders.

There are different types of explosion proof standard for various market. The most popular EX standard are CNEX, IECEX, ATEX, and UL.

CNEX is China National Standard for explosion proof. All EX motors and electrical components must be complied with CNEX standard.

IECEX is International Electrotechnical Commission System for Certification to Standards Relating to Equipment for Use in Explosive Atmospheres. All EX components made in China, if they complied with IECEX standard, they first be complied with CNEX. It means there will be 2 EX marks on the products.

ATEX is ATmospheres EXplosibles. It is European standard. The same as IECEX, all EX products made in China, if it is complied with ATEX, it is also complied with CNEX.

Seen from above, you may know, standard and products for CNEX, IECEX and ATEX are nearly the same. They just have different Quality control system to get the certificate.

UL is Underwriter LaboratoriesInc, it is the national explosion proof standard in USA and Canada only. If some thing said complied with UL standard, mostly probably, it is made in USA.

The design and technical requirement of UL is different with CNEX, IECEX or ATEX. It means the motors made per CNEX, IECEX and ATEX are all interchangeable while with the same frame code. But UL standard motors cannot be interchangeable with them. So UL is fewly used outside USA or Canada.

GN Solids Control is a professional decanter centrifuge manufacturer from China, and supplied to worldwide clients. GN Solids Control brand centrifuges are widely used in Canada, Australia, U.S.A, South America, Turkey, Iraq, UAE, Oman, Kuwait, Indonesia, Egypt, Algeria and other countries. GN Solids Control makes oilfield Decanter centrifuges, drilling fluids decanter centrifuge, and various types of high speed drilling mud Decanter centrifuge for solids control, dewatering and waste management.

GN Solids Control is capable to offer customized control system to suit for all GN brand centrifuge, it includes but not limited to fixed speed control centrifuge, variable frequency drive control centrifuge (VFD centrifuge), full hydraulic drive decanter centrifuge (FHD centrifuge).

GN Solids Control is among the fewer manufacturer who is capable to make Explosion Proof Pressurized Control Panel for VFD centrifuge. GN Solids Control Pressurized VFD Control Panel is equipped with 2 types of auto- cooling system: vortex tube cooling system and explosion proof air-conditioner cooling system, which is especially designed and used in high temperature ambient up to 55C degree. The explosion proof pressurized control panel consists of main cavity and auxiliary cavity. The main cavity is pressurized cavity which includes electrical components, pressure check sensor system, ventilation air distribution system, and air conditioning system. The purging system works automatically to maintain a certain positive pressure inside the main cavity.

The full hydraulic system for GN Solids Control centrifuge is from Switzerland, which is a leading brand for centrifuge hydraulic driving system. GN Solids Control can make centrifuges and control system per clients request, the Electrical voltage system which operate at dual voltage, like 460V 60Hz / 380V 50Hz is available.

Dual voltage motors will be used. And there will be switch on the control panel to shift between 460V 60Hz / 380V 50Hz. Voltage and HZ are customized per order request,which is not showing on Centrifuge user manual. The mud weight that GN drilling mud decanter centrifuge can work on is up to 2.3 SG. Besides centrifuge, GN Solids Control makes other type drilling mud separation equipment, like shale shaker, mud cleaner, desander desilter, etc…

This week, GN Solids Control finished 5 sets GNZCQ360B Vacuum Degasser for China Drilling Company. The drilling rig company will equip the degasser in their mud system and offer to international drilling company.

GN Solids Control vacuum degasser is Self-contained type. It means clients do not need to prepare a separate feeding pump for the vacuum degasser. It saves the usable space on the tank top. And also, it reduces the total horse power of the mud system. It it is not self-suction type vacuum degasser, the mud system operators must prepare an additional centrifugal pump to feed for the vacuum degasser.

GN Solids Control makes 1200GPM and 1500GPM vacuum degasser for the drilling mud solids control system in oil and gas drilling field. Operators can choose the right model to service for his drilling rig mud system. The 1200GPM vacuum degasser can suit for work over rig mud system and developing rig mud system. While the 1500GPM vacuum degasser can be used for deep drilling rig mud systems.

GN Solids Control vacuum degasser can be used for mud weight up to 21ppg. The equipment are capable for using at Oil Based Mud system, Water Based Mud system, as well as Synthetic based Mud system.

GN Solids Control has his own electrical control department, and have certificate to make control panels complied with various standards. GN Solids Control has explosion proof certificates on CNEx, IECEx and ATEx Zone 1 and Zone 2 for Hazardous areas. The control panel of GN Solids Control is with protection level IP65. And the equipped motor is with protection level IP55 or above.

Besides vacuum degesser, GN Solids Control is also capacity to make solids control shale shaker, drilling mud cleaner, desaner, desilter, decanter centrifuge and other solids control and drilling waste management equipment. GN Solids Control can make customized full package drilling mud processing system to suit for clients’ special request.

GN Solids Control waste water treatment dewatering decanter centrifuges are specially designed to meet the separation requirements of the waste water and oil slurry generated from processing industry.

The waste water may consist oil or without oil. GN Solids Control has various models 2-phase decanter centrifuge and 3-phase centrifuges. GN Solids Control separation equipment offers high performance separation solutions to the 2 phase and 3 phase separation with maximum water and oil recovery.

This week, GN Solids Control finished 2 sets of decanter centrifuges. The model of the 2 centrifuge is GNLW454ET-VFD. It is a 2-phase big bowl decanter centrifuge mainly used for dewatering and municipal sewage treatment. The 2 centrifuge will be used to treat the municipal sewage which consists 2-3% solids, and the handling capacity is 30 ~ 40 cbm per hour.

The GNLW454ET-VFD is a dual motor decanter centrifuge. The main motor is 45kw, and the auxiliary motor is 15kw. The GNLW454ET-VFD is made by high level material for more durable and long lifetime. The bowl of GN centrifuge are made from SS2205 by centrifugal casting. Centrifugal casting is better than normal casting, it is better balancing. The propeller on the bowl is made from SS2205. And the collection box is made from SS304, while the base of GN Solids Control centrifuge is made from high quality carton steel from casting.

In order to extend the lifetime of centrifuges, GN Solids Control has below wearing protection:
The whole propeller of the screw is protected by carbide tiles, and the distribution port of screw propeller is protected by carbide sleeve.

The slag discharge port is protected by carbide sleeves.

The inner wall of GN centrifuge bowl is weldged with ribs, and the discharge port of the bowl is protected by carbide scraper.

GN Solids Control can offer sensors per clients’ request. Normally clients may choose 2 temperature sensors and 1 vibration sensors for protection.

GN Solids Control offers German brand NETZSCH pump to feed for the centrifuge.