Crystalliser Holding Device
AssigneeDanieli & C. Officine Meccaniche SpA
InventorsAlfredo Poloni, Andrea De Luca, Marco Ansoldi
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Abstract
Crystalliser holding device for billets, blooms and slabs production plants that has a high constructive simplicity, a significantly reduced overall weight and that reduces substantially to zero the need for maintenance. The crystalliser holding device of the invention, in addition to efficaciously guaranteeing the transfer toward the exterior of the heat of the liquid steel introduced into the tubular crystalliser contained therein, also provides a separate circuit for cooling the continuous ingot exiting the crystalliser and the rollers at the foot. It also permits an easy and rapid replacement in the oscillating table in which it is housed.
Claims15
Crystalliser holding device for casting steel products such as billets, blooms and slabs from liquid steel, comprising:
- a tubular crystalliser defining a longitudinal casting direction provided with a plurality of longitudinal channels for the passage of a first cooling fluid,
- a substantially ring-shaped casing arranged at a first end of said tubular crystalliser comprising a first chamber for feeding the first cooling fluid into said plurality of longitudinal channels, characterised in that
- the tubular crystalliser is monolithic and the longitudinal cooling holes are made in the thickness thereof, whereby said longitudinal channels are very close to the inner walls of said crystalliser and provide a primary cooling of the liquid steel,
- said first cooling fluid is introduced into said longitudinal channels from the top towards the bottom through said first chamber of the ring-shaped casing,
- the inner wall of said crystalliser holding device and the external wall of the crystalliser provides at least one first re-ascent duct for the first cooling fluid,
- said first duct communicating with a second chamber for recycling the first fluid provided in said casing,
- said longitudinal channels are in communication with said first duct in correspondence with a second end in correspondence of the foot of the tubular crystalliser.
Dependencies are inferred from the claim text.