Decanter centrifuge widely used in oil and gas drilling field and drilling waste management field. There are mainly three types of feed pump feeding for decanter centrifuge.
Below is the details description of the 3 type feed pump. The world top solids control and waste management manufacturer – GN Solids Control also give suggestion about how to choose suitable feed pump for your decanter centrifuge.
1) Decanter centrifuge feed pump -Screw pump
Screw pump, also named as Positive Displacement Feed Pump or Meno pump. GN Solids Control Company (China top manufacturer on mud solids control and waste management equipment) chooses from German brand Netzsch, fluid touch material stainless steel. Other famous brand, like Derrick, Swaco, Brandt, also choose screw pump feed for the decanter centrifuge.
Screw pump is reliable on performance, and better on materiall, it is mainly used for waste management system. Screw pump usually mounted on the tank slope. It will occupy part of the tank usable capacity. No need remove during shipment.
2) Decanter centrifuge feed pump –Submersible slurry pump
Centrifuge feed pump submersible slurry pump mainly used for solids control system or no dig mud system, like barite recovery, HDD system, CBM drilling, micro tunneling, etc… The pump can be mounted on the tank top, no need to occupy tank space, it can save tank capacity. The pump should be put into fluids for suction.
Main advantages of the pump is that, it can allow solids side below 7~8mm. It is easy for maintenance. But as submersible slurry pump mounted on tank top, usually it is over 1 m higher than the tank top, need to be removed during shipment.
3) Decanter centrifuge feed pump –centrifugal pump (GNSB series pump)
Centrifugal pump also be used for decanter centrifuge in some cases. It is not as common as Screw pump or Submersible slurry pump. As the same with screw pump, it is usually mounted on tank slope. It will occupy part of the tank usable capacity. No need remove during shipment.
If you still have wondering on the 3 types of feed pump for decanter centrifuge, you can contact GN engineer group for help. You can contact their China base or Houston base, either one available.