Drilling fluids liquid mud plant is sa center to treat, prepare and store huge volume of drilling fluids liquid mud for drilling rigs. 
The mainly 3 systems should be included in liquid mud plant:
1) Solids control system for drilling mud purification
2) Drilling waste management for drilling cuttings separation
3) Jet mud mixing system for prepare more drilling fluids and weight the mud
Conveyor, also called screw propeller. It is the most important part of waste management decanter centrifuge. We can also see it as the core of decanter centrifuge.
For different conveyor speed, the separation performance is different. For different drilling fluids, the centrifuge conveyor should defer. Professional users know how to change for a suitable speed for a better performance.
GN variable speed centrifuge (VFD), conveyor speed can be changed during centrifuge running. Customer can change the conveyor speed per different drilling fluids type.
For GN decater centrifuge, main motor is connected directly with bowl. Back motor is connected with gearbox and then connect with centrifuge screw propeller. When change the frequency of the motor, customer can get the different conveyor speed.
GN Solids Control manufactures customized dewatering units.
GN design dewatering unit is complete containerized unit with various pump and decanter centrifuges.
20’ Containerized Dewatering Unit is a smaller size dewatering unit, GN have big size 40ft for option.
GN provide optimum performance when combined with GN proprietary dewatering centrifuge. with PLC control. It is easy for operation and reliable for running.
GN 20’ mobile dewatering unit can be transported as a standard container for overseas and land shipping. The system includes all the standard dewatering components with the centrifuge mounted on a separate telescoping skid or on your own mud tank.
Decanter centrifuge is the most important and the most cost separation machine for sludge dewatering unit.
GN Solids Control have sold over 150 decanter centrifuge to Africa and South America, like Brazil, Argentina, Venezuela，Mexico, Algeria, Tunisia, Nigeria, Egypt, Libya and other countries.
Many of the decanter centrifuge is for rent service and used for dewatering unit.
If you want to rent a dewatering decanter centrifuge, or if you want to buy a used dewatering decanter centrifuge with good price, contact GN now:
Visit website: http://www.gnsolidscontrol.com
CTC: Ms. Vivi Wang
Mobile:+86- 18632565675
Email:vivi@gnsolidscontrol.com / vivi@gnsolidscontrol.co
GNLW363 centrifuge is the most common model for dewatering unit. It is equivalent model to Derrick DE-1000 and Swaco 518. 
There are chemicals for biosolids for the fluids phase from drilling mud.The fluids phase will be flocculated by chemicals before going into centrifuge.The very fine solids will be thickening to bigger size that centrifuge can treat. Then clean water available.