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AssigneesDanieli & C. Officine Meccaniche SpA, Danieli Automation S.P.A.
InventorsCristiano Pezzutto, Riccardo Conte, Gianpiero Brunetti, Andrea Carboni
Estimating the term…
Plant (10) for the continuous casting of metal products comprising a mould (12) in which a metal (L) in the molten state is able to be poured with a determinate flow rate (Q), a regulation device (16) capable of regulating said flow rate (Q), a control unit (18) configured to manage at least the movements of said regulation device (16), and at least one detection device (19) capable of detecting every punctual variation of the level (14) of metal (L) in said mould (12) with respect to a nominal value thereof and generating a corresponding variation signal (SV) and sending it said control unit (18), which is capable of generating a command signal (RS) for said regulation device (16) in order to cause a desired variation of the flow rate (Q). The present invention also concerns the regulation method for generating the above command signal (RS).
Plant for continuous casting of metal products comprising a mould in which a metal in a molten state is able to be poured with a determinate flow rate, a regulation device capable of regulating said flow rate, a control unit configured to manage at least movements of said regulation device, and at least one detection device capable of detecting every punctual variation of a level of metal in said mould with respect to a nominal value thereof and generating a corresponding variation signal having a frequency, an amplitude and a phase and sending the corresponding variation signal to said control unit, wherein said control unit comprises a central processing unit and at least one memory unit connected to the central processing unit in which at least one first compensation algorithm is stored, wherein the at least one first compensation algorithm is configured to make said central processing unit, without using any measurement or estimate of a disturbance acting on said plant, selectively generate a command signal for said regulation device starting from said variation signal and taking into account an overall delay between the generation of said variation signal and actual actuation of said regulation device, said command signal having at least a command signal variable amplitude and a command signal variable phase.
Regulation method for a plant for continuous casting of metal products, having a mould to contain metal in a molten state, regulation means to regulate a flow rate of said metal and keep a level thereof stable in said mould, and a control unit connected to said regulation means, wherein said method comprises a detection step in which detection means detect a punctual variation of said level with respect to a nominal value, and generate a corresponding variation signal, having a frequency, an amplitude and a phase, which is sent to the control unit, and wherein the method further comprises a control step, in which said control unit, in response to said variation signal and in accordance with at least one first compensation algorithm, selectively generates, without using any measurement or estimate of a disturbance acting on said plant, a command signal for said regulation device starting from said variation signal and taking into account an overall delay between the generation of said variation signal and actual actuation of said regulation device, said command signal having at least a command signal variable amplitude and a command signal variable phase.
Dependencies are inferred from the claim text.