Patent ID: 8968169
Filing Date: 2015-03-03
Classification: B04B

Abstract:
1. A decanter centrifuge for separating a first substance and a second substance with different densities comprising: a bowl rotating in use around a horizontal axis of rotation in a direction of rotation, said axis of rotation extending in a longitudinal direction of said bowl; a radial direction extending perpendicular to the longitudinal direction; a base plate provided at one longitudinal end of said bowl, said base plate having an internal side and an external side, an outlet opening provided in said base plate for discharge of one of said substances, said outlet opening extending through a first angular interval relative to the axis of rotation, a slide valve body adapted for covering an adjustable part of the outlet opening to delimit an effective area of the outlet opening, wherein said slide valve body comprises a first edge extending in the radial direction, said edge delimiting the effective area of the outlet opening when said slide valve body is in a position covering an adjustable part of said outlet opening, and in that the outlet opening is radially away from the axis of rotation delimited by a second edge, said second edge having in at least a major part of the first angular interval in a radial plane perpendicular to the axis of rotation an inclination relative to the radial direction of at least 60° said second edge constituting a weir edge.