LEVEL DETECTION DEVICE IN A CASTING EQUIPMENT AND RELATIVE DETECTION METHOD
First Claim
1. Level detection device in casting equipment comprising:
- at least a crystallizer oscillating linearly, in a manner concordant with a substantially vertical direction of advance of molten steel in the casting equipment and at a desired frequency of oscillation, said device being connected with said casting equipment so as to oscillate at the same frequency of oscillation and being disposed at a predetermined operating height, wherein a means to generate a continuous magnetic field is oriented transversely to the direction of advance of the steel in the casting equipment, so as to generate alternate induced currents in the steel, said means to generate a continuous magnetic field being associated with a wall of the crystallizer with a magnetic pole facing toward said wall, and a means to detect the magnetic field is disposed laterally facing said generating means and configured to detect a variable induced magnetic field generated by and concatenated with said alternate induced currents, wherein the field lines generated by said generating means develop substantially parallel to and outside the position of said detection means, and intensity of said variable induced magnetic field as detected by the detection means being correlated to the level of the steel in the casting equipment with respect to said operating height.
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Accused Products
Abstract
A level detection device in casting equipment oscillating linearly, in a manner concordant with a substantially vertical direction of advance of molten steel in the casting equipment at a desired frequency of oscillation includes the device oscillating at the same frequency and disposed at a predetermined operating height. The device generates a continuous magnetic field, and the field generator is oriented transversely to the direction of advance of the steel in the casting equipment, so as to generate alternate induced currents in the molten steel. The device detects a variable induced magnetic field generated by and concatenated with said alternate induced currents, wherein the intensity of the variable induced magnetic field as detected is correlated to the level of the molten steel in the casting equipment with respect to the operating height.
9 Citations
12 Claims
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1. Level detection device in casting equipment comprising:
at least a crystallizer oscillating linearly, in a manner concordant with a substantially vertical direction of advance of molten steel in the casting equipment and at a desired frequency of oscillation, said device being connected with said casting equipment so as to oscillate at the same frequency of oscillation and being disposed at a predetermined operating height, wherein a means to generate a continuous magnetic field is oriented transversely to the direction of advance of the steel in the casting equipment, so as to generate alternate induced currents in the steel, said means to generate a continuous magnetic field being associated with a wall of the crystallizer with a magnetic pole facing toward said wall, and a means to detect the magnetic field is disposed laterally facing said generating means and configured to detect a variable induced magnetic field generated by and concatenated with said alternate induced currents, wherein the field lines generated by said generating means develop substantially parallel to and outside the position of said detection means, and intensity of said variable induced magnetic field as detected by the detection means being correlated to the level of the steel in the casting equipment with respect to said operating height. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method to detect a level in casting equipment, which oscillates linearly, in a manner concordant with a direction of advance of molten steel in the casting equipment at a desired frequency of oscillation, the method comprising:
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generating a continuous magnetic field oriented transversely to the direction of advance of the steel in the casting equipment, so as to generate alternate induced currents in the advancing molten steel; and detecting a variable magnetic field, generated by and concatenated with said alternate induced currents, the intensity of the variable magnetic field being correlated to the level of the molten steel in the casting equipment with respect to an operating height at which magnetic field generating means and magnetic field detection means are positioned. - View Dependent Claims (9, 10, 11)
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12. Equipment for continuously casting of steel comprising a device for detecting the level of molten steel, wherein the detecting comprises generating a continuous magnetic field oriented transversely to the direction of advance of the steel in the casting equipment, so as to generate alternate induced currents in the advancing molten steel, and detecting a variable magnetic field generated by and concatenated with said alternate induced currents, the intensity of the variable magnetic field being correlated to the level of the molten steel in the casting equipment with respect to an operating height at which magnetic field generating means and magnetic field detection means are positioned.
Specification