Back to results
US 2026/0284739 A1Published application
Apparatus and method for refining liquid metal
AssigneeDanieli & C. Officine Meccaniche SpA
InventorsFederico BIANCO, Johnny MANTOANI, Marco ANSOLDI, Massimo VARUTTI
Life of this patent
Estimating the term…
Abstract
Apparatus (10) for refining liquid metal (L) comprising: a ladle (11) containing the liquid metal (L) provided with an open upper part (12) and with at least one porous plug (13) on a bottom wall (14) thereof, a removable lid (19, 23), a gas injection line (21) connected to said at least one porous plug (13), and a control unit (27).
Claims21
Apparatus for refining liquid metal comprising:
- a ladle containing the liquid metal provided with an open upper part and with at least one porous plug on a bottom wall thereof, a removable lid, a gas injection line connected to said at least one porous plug, and a control unit, wherein it comprises a viewing unit mounted on said lid and comprising a support assembly with which there are associated at least one IR telecamera connected to said control unit to detect and transmit a sequence of thermographic images of a free surface of said liquid metal, at least one protection lens directly facing said open upper part, and an intermediate lens disposed between said at least one IR telecamera and said at least one protection lens.
Method for refining liquid metal comprising the following steps:
- preparing a ladle containing a liquid metal, provided with an open upper part and with at least one porous plug on a bottom wall thereof,
- temporarily positioning a removable lid over said open upper part,
- blowing, by means of a gas injection line, an inert gas inside said ladle through said liquid metal, by means of said at least one porous plug,
- controlling at least said gas injection line with a control unit,
- characterized in that it comprises monitoring a free surface of said liquid metal by means of a viewing unit mounted on said lid, wherein at least one IR telecamera connected to said control unit detects and transmits a sequence of thermographic images of said free surface acquired through at least one protection lens directly facing said open upper part, and an intermediate lens disposed between said at least one IR telecamera and said at least one protection lens.
2 more elements
Dependencies are inferred from the claim text.