Centrifugal separator having a feed accelerator
First Claim
1. A centrifugal separator comprising:
- a bowl rotating in use around an axis of rotation, said axis of rotation extending in a longitudinal direction of said bowl,a radial direction extending perpendicular to the longitudinal direction;
a conveyor arranged coaxially within said bowl and rotating in use around said axis of rotation, said conveyor comprising an acceleration chamber,a separation chamber being radially outwards limited by said bowl and radially inwards limited by said conveyor,said acceleration chamber being provided with a plurality of feed ports on an outer circumferential surface thereof for inlet of feed material into the separation chamber, each of the plurality of feed ports opening in said radial direction, anda feed accelerator arranged coaxially with said conveyor within said acceleration chamber and rotating in use around said axis of rotation relative to the conveyor at a lower speed than the conveyor, said feed accelerator having a discharge outlet for discharge of feed material through said discharge outlet into said acceleration chamber of the conveyor, whereinat least one of said plurality of feed ports extend a first axial area and said discharge outlet extends a second axial area, the first and the second axial area overlapping mutually such that feed material flows from the discharge outlet through the plurality of feed ports in direction having a radial and a circumferential component.
1 Assignment
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Accused Products
Abstract
The centrifugal separator has a rotating bowl and a rotating conveyor with an acceleration chamber arranged coaxially within the bowl. The centrifugal separator further has a separation chamber, which is radially limited by the bowl and the conveyor, respectively, and the acceleration chamber is provided with feed ports for inlet of feed material into the separation chamber. A feed accelerator is arranged coaxially within the acceleration chamber and is rotating in use around a common axis of rotation relative to the conveyor at a lower speed than the conveyor. The feed accelerator has a discharge outlet for discharge of feed material into the acceleration chamber of the conveyor. The feed ports extend a first axial area and the discharge outlet extends a second axial area, whereby the first and the second axial area are overlapping.
32 Citations
10 Claims
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1. A centrifugal separator comprising:
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a bowl rotating in use around an axis of rotation, said axis of rotation extending in a longitudinal direction of said bowl, a radial direction extending perpendicular to the longitudinal direction; a conveyor arranged coaxially within said bowl and rotating in use around said axis of rotation, said conveyor comprising an acceleration chamber, a separation chamber being radially outwards limited by said bowl and radially inwards limited by said conveyor, said acceleration chamber being provided with a plurality of feed ports on an outer circumferential surface thereof for inlet of feed material into the separation chamber, each of the plurality of feed ports opening in said radial direction, and a feed accelerator arranged coaxially with said conveyor within said acceleration chamber and rotating in use around said axis of rotation relative to the conveyor at a lower speed than the conveyor, said feed accelerator having a discharge outlet for discharge of feed material through said discharge outlet into said acceleration chamber of the conveyor, wherein at least one of said plurality of feed ports extend a first axial area and said discharge outlet extends a second axial area, the first and the second axial area overlapping mutually such that feed material flows from the discharge outlet through the plurality of feed ports in direction having a radial and a circumferential component. - View Dependent Claims (2, 3, 4)
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5. A centrifugal separator comprising:
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a bowl rotating in use around an axis of rotation, said axis of rotation extending in a longitudinal direction of said bowl, a radial direction extending perpendicular to the longitudinal direction; a conveyor arranged coaxially within said bowl and rotating in use around said axis of rotation, said conveyor comprising an acceleration chamber, a separation chamber being radially outwards limited by said bowl and radially inwards limited by said conveyor, said acceleration chamber being provided with feed ports for inlet of feed material into the separation chamber, and a feed accelerator arranged coaxially with said conveyor within said acceleration chamber and rotating in use around said axis of rotation relative to the conveyor at a lower speed than the conveyor, said feed accelerator having a discharge outlet for discharge of feed material through said discharge outlet into said acceleration chamber of the conveyor, wherein said feed ports extend a first axial area and said discharge outlet extends a second axial area, the first and the second axial area overlapping mutually such that feed material flows from the discharge outlet through feed ports in direction having a radial and a circumferential component; and wherein said feed accelerator comprises an inlet tube, said discharge outlet is provided by a discharge port in a side wall of said inlet tube and a casing having a curved wall part extending from said discharge port, such that said wall part extends tangentially from said inlet tube. - View Dependent Claims (6, 7, 8, 9, 10)
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Specification