The refinement of steel chemistry takes place in secondary steelmaking.
Recirculating Degasser
Full Code
MAN0106301
Module Type
3D Model
Description
This unit uses a vacuum chamber having two snorkels connected to the chamber bottom. One of the snorkels is equipped with pipes supplying Argon through its refractory lining. The snorkels of the vacuum chamber are immersed into the ladle with molten steel. Liquid metal fills the chamber to a level determined by the atmospheric pressure (4.2ft/1.3m).
Argon bubbles floating up in one of the snorkels (up-leg) force the melt to rise in the snorkel. Through the second snorkel (down-leg) the molten steel flows down back to the ladle producing circulation. The circulation rate may reach 150-200 t/min. The recirculation degassing vacuum chambers are usually equipped with addition hoppers, through which alloying elements or/and desulphurisation slag may be added.
What you will learn
None
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