Decanter centrifuge with energy recovery structure

摘要

In a decanter centrifuge a bowl is provided and rotates in use around a horizontal axis of rotation, a base plate provided at one longitudinal end of said bowl, the base plate having an internal side and an external side, an outlet opening provided in said base plate, the outlet opening extending through a first angular interval relative to the axis of rotation, and a wall projecting from the external side of said base plate, wherein the wall extends from the vicinity of the outlet opening towards a rim of the base plate, the wall extending through a second angular interval, the second angular interval being at least 30°, and the wall having in a radial plane perpendicular to the axis of rotation an inclination relative to the radial direction of at least 60°.

主权项

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, and a wall projecting from said external side of said base plate for guiding the substance discharged from said outlet opening in a direction opposite a direction of rotation of the bowl to recover kinetic energy from the substance, wherein said wall extends from the vicinity of the outlet opening towards a rim of the base plate, said wall extending through a second angular interval adjacent the first angular interval, said second angular interval being at least 30° and said wall having in a radial plane perpendicular to the axis of rotation an inclination relative to the radial direction of at least 60°.