A Device and Method for Descaling Rolling Stock
AssigneeHermetik Hydraulik AB
InventorJürgen Gaydoul
Life of this patent
Estimating the term…
Abstract
A nozzle head for descaling rolling stock, said rolling stock moving relative to said nozzle head, is adapted to be mounted for rotation about an axis of rotation relative to a surface of said rolling stock. Said nozzle head comprises a plurality of nozzles adapted to spray a liquid on said rolling stock, wherein said nozzles are positioned at different radial distances from said axis of rotation.
Claims15
1-15. (canceled)
A nozzle head for descaling rolling stock moving relative to said nozzle head;
- wherein said nozzle head is adapted to be mounted for rotation about an axis of rotation relative to a surface of said rolling stock;
- wherein said nozzle head comprises a plurality of nozzles adapted to spray a liquid on said rolling stock;
- and
- wherein said nozzle head comprises a first group of at least two of said nozzles positioned at a first radial distance from said axis of rotation, and a second group of at least one of said nozzles positioned at a second radial distance from said axis of rotation, wherein said second radial distance is smaller than said first radial distance.
The nozzle head according to claim 1, wherein said second radial distance is at most 0.9 times said first radial distance, and in particular at most 0.8 times said first radial distance.
The nozzle head according to claim 1, wherein said nozzles are arranged along circles or ellipses with different radii.
The nozzle head according to claim 1, wherein said nozzles are radially inclined outwardly.
The nozzle head according to claim 1, further comprising at least a first nozzle positioned at a first radial distance from said axis of rotation, said first nozzle being radially inclined outwardly at a first outward inclination angle, and
- a second nozzle positioned at a second radial distance from said axis of rotation, said second nozzle being radially inclined outwardly at a second outward inclination angle,
- wherein said second radial distance is smaller than said first radial distance and wherein said second outward inclination angle is different from said first outward inclination angle.
The nozzle head according to claim 1, wherein said nozzles are inclined in a circumferential direction of said nozzle head, in particular in a direction of rotation of said nozzle head or against a direction of rotation of said nozzle head.
The nozzle head according to claim 1, further comprising at least a first nozzle positioned at a first radial distance from said axis of rotation, said first nozzle being inclined in a circumferential direction at a first circumferential inclination angle, and
- a second nozzle positioned at a second radial distance from said axis of rotation, said second nozzle being inclined in a circumferential direction at a second circumferential inclination angle,
- wherein said second radial distance is smaller than said first radial distance and wherein said second circumferential inclination angle is different from said first circumferential inclination angle.
The nozzle head according to claim 1, further comprising at least a first nozzle positioned at a first radial distance from said axis of rotation, said first nozzle having a first orifice size, and
- a second nozzle positioned at a second radial distance from said axis of rotation, said second nozzle having a second orifice size,
- wherein said second radial distance is smaller than said first radial distance, and wherein said second orifice size is different from said first orifice size, in particular smaller or larger than said first orifice size.
A device for descaling rolling stock, the device comprising a plurality of nozzle heads, each of the plurality of nozzle heads being adapted to be mounted for rotation about an axis of rotation relative to a surface of said rolling stock;
- wherein each said nozzle head comprises a plurality of nozzles adapted to spray a liquid on said rolling stock;
- and
- wherein each said nozzle head comprises a first group of at least two of said nozzles positioned at a first radial distance from said axis of rotation, and a second group of at least one of said nozzles positioned at a second radial distance from said axis of rotation, wherein said second radial distance is smaller than said first radial distance;
- wherein the plurality of nozzle heads is arranged vertically and/or horizontally across a width of said rolling stock, and/or arranged circularly across said rolling stock.
A method for descaling rolling stock, comprising:
- rotating a nozzle head about an axis of rotation relative to a surface of said rolling stock, said nozzle head comprising a plurality of nozzles;
- and
- spraying a pressurized liquid on said rolling stock from said nozzles;
- wherein said nozzle head comprises a first group of at least two of said nozzles positioned at a first radial distance from said axis of rotation, and a second group of at least one of said nozzles positioned at a second radial distance from said axis of rotation, wherein said second radial distance is smaller than said first radial distance.
Dependencies are inferred from the claim text.