VFD decanter centrifuge

2 units of 30 inch big bowl decanter centrifuges are shipped to USA for construction slurry treatment. This is the largest model decanter centrifuge we produced right now, it is widely used for construction, TBM, etc. projects which required big volume treatment. Same with other models decanter centrifuge, features of GN big bowl decanter centrifuge:


1) Bowl material is made of duplex stainless steel 2304 or 2205, the cone bowl is made of stainless steel 316L, the screw is made of SS304 by 1000 degree heat treatment. The open impeller can increase the treating capacity and treatment efficiency a lot.


2) The screw impeller is protected by tungsten carbide tiles, which is repairable once it is damaged. We do not use welding spray tungsten carbide alloy because it is easy to be damaged and once damaged, it can not be repairable, the user has to replace the complete screw unit.
3) The main bearings are SKF brand for longer working , especially after long time rotating, the bearing temperature will become very high, it is easily burnt if the bearing quality is not reliable.
4) 2 ea motor including main motor, back drive motor are installed on one side of decanter centrifuge to save space and for compact design.
5) Centrifuge VFD control panel with 3 motors variable frequency including main motor, back drive motor and pump motor, the 3 inverter with world famous brand for convenient outsourcing, the positive pressurized VFD control panel can be used in high temperature environment compared with normal explosion proof VFD control panel, it is easily break off in hot weather for the normal explosion proof control panel, positive pressurized VFD control panel can prevent it from such problem.
If you need big bowl big volume decanter centrifuge, pls get more information from GN solids control.

Recently GN solids control shipped 10 units of VFD decanter centrifuges to Middle east with IEC explosion proof motor and VFD control panel, these are high configuration decanter centrifuge, which can be widely used for dewatering unit, drilling fluids treatment, drilling cuttings treatment, waste water treatment, oil sludge separation system and all other kinds of liquids and solids separation.


The decanter centrifuge package including screw pump, telescopic skid, decanter centrifuge and VFD control panel, all in one skid for convenient transportation and operation.
Features of GN VFD control panel:


1) Positive pressurized VFD control panel with PLC smart control, with self cooling system and HMI interface, 3 motors VFD for main motor, back drive motor and feeding pump motor.
2) The motor and control panel is IEC EX certified for zone 1 application, suitable for operation temperature -20-55℃, especially suitable for Middle East area.
3) The inverter is ABB brand, and all the electrical components are option for ABB/ Scheneider/ Siemens.
4) The VFD control cabinet is made of stainless steel material for longer working life and better corrosion resistance.
5) The cable gland, power supply pin and aviation plug are all IEC EX certified.
Features of GN decanter centrifuge mechanical part:


1) Bowl material is made of duplex stainless steel 2304 or SS2205, the other parts of bowl is made of SS316, the collection box is also made of stainless steel 304 for better corrosion resistance.
2) The screw is made of stainless steel material and heating treatment up to 1000 degree, the opening screw propeller increase the treating efficiency.
3) The bearing is SKF brand
4) The screw protection is tungsten carbide tiles and repairable, the solids discharge port and fluids distribution port are all protected by tungsten carbide alloy and it is interchangeable.
For more information, pls contact with GN solids control.

As a professional FHD decanter centrifuge manufacturer in China, GN solids control produce both FHD decanter centrifuge and VFD decanter centrifuge. Fully hydraulic drive decanter centrifuge is new developed centrifuge compared with our mutual series VFD decanter centrifuge. Features of GN brand FHD decanter centrifuge as below:


1) Compact design, all the hydraulic drive system imported from Europe, the main motor ( explosion proof, IEC or ATEX), electric control panel, centrifuge bowl assembly, bearing , skid are installed on one skid for convenient operation, convenient transportation, and save space for installation.
2) Big bowl speed adjustment arrange, Big differential speed adjustment range for better separation result, it can treat the drilling fluids drier and recycle more clean fluids, and separate more solids.
3) It is more suitable for heavy duty drilling fluids and specially in high temperature area, like India, Middle east, Brazil, Africa etc. area.


GN VFD decanter centrifuge is also very suitable for extremely high and extremely low temperature area, like Russia, and above mentioned countries. When the environmental temperature is below 40 degree, the VFD self cooling tube installed inside the VFD control panel is enough. When the temperature is lower than 55 degree, we need to use an air conditioner for cooling, so that the VFD control panel can be operated 24 hours per day continuously without over heating to break. If use normal explosion proof VFD control panel, it will break very easy in hot weather.
The positive pressurized VFD control panel with stainless steel material cover, equipped with ABB brand inverter for main motor, back drive motor, pump motor, PLC smart control, HMI interface, the operator only need to connect the cable gland with the VFD control panel.
If you need FHD decanter centrifuge and VFD decanter centrifuge, pls contact with GN solids control.