Conveyor 3 : A mechanical device for moving material from one place to another. In a decanting centrifuge a hollow hub with flute(s) rotating in the same direction but at a slower speed than the centrifuge bowl. (Bul 13C)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}