CENTRIFUGAL SEPARATOR ARRANGEMENT AND METHOD

摘要

This invention relates to a centrifugal separator arrangement 10 for use in a centrifugal separation process. The separator arrangement comprises a first centrifugal separator 12 and a second centrifugal separator 14 connected to the first centrifugal separator 12 whereby a first fraction of material A discharging from an outlet 18 of the first centrifugal separator 12 enters an inlet 20 of the second centrifugal separator 14. An auxiliary inlet 24 is located between the outlet 18 and the inlet 20 through which a control material B is added to control one or more characteristics of the first fraction of material A selected from pressure, density and volumetric flow rate of the first fraction of material A. The control material B is at least one of a fluid, such as water, and a combination of a fluid, such as water, and a solid material, such as magnetite or ferrosilicon.