Decanter centrifuges are quite popular for separating out solids particles from liquid in many industries like drilling mud solids control, waste management, slurry treatment, food and beverage industry and waste water treatment. GN Solids Control is one of the leading professional solution providers among decanter centrifuge manufacturers.

Just these days, GN Solids Control has finished fabrication of a decanter centrifuge system for a waste water separation project. This system includes a big bowl centrifuge and a dosing unit.

1. Big bowl centrifuge with VFD control panel: based on client’s requested treating capacity and the waste water condition, GN suggested the big bowl centrifuge GNLW454E-VFD, with 18 inch diameter bowl and a bowl length-diameter ratio of 4. As means, a long bowl centrifuge for a cleaner separation result. This centrifuge is equipped by a VFD control panel, and this allows the centrifuge to reach different bowl speed and impeller speed. In this case, even when the waste water condition changes, the centrifuge could be adjusted to the most efficient parameter setting for an ideal separation result.

2. Chemical dosing unit with 3000L volume. This dosing unit is used to add chemicals into the waste water. Because in the waste water there are particles smaller than the centrifuge range, 2 to 5 microns. It need some polymer to be added into the waste water, in order to flocculate the extra fine particles into bigger ones for centrifuge to work. This chemical dosing unit has a tank volume for 3000L, divided into 3 compartments, one for mixing, one for maturing, the other for storage liquid ready for use.

3. Screw pumps. Screw pumps are gentle and practical pumps for feeding centrifuge, especially for the VFD controlled centrifuges. It can work well with VFD control panels to feed accurate volume of liquid into centrifuge. In this system, the chemical dosing unit also uses a screw pump.

For more information, welcome to contact GN directly.