SUBMERSIBLE PIPE FOR CIRCULATION VACUUM GENERATOR Russian patent published in 2020 - IPC C21C7/10 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgical equipment and can be used at installations for circulating evacuation of steel. Submersible pipe consists of a metal structure lined with refractory articles and lined with fire-resistant concrete, wherein between the inner surface of the metal structure and fire resistant articles outer surface there is a buffer layer of refractory concrete. Refractory article is made from refractory bricks having a rectangular cross-section, and the lower refractory article is made from refractory bricks having a U-like shape in their section, said refractory products being assembled in the form of a polygon of circular shape, and the metal structure of the branch pipe is equipped with a support metal article made of segments fixed with gaps in a circumferential direction with provision for fixation of the said lower refractory article.

EFFECT: invention allows increasing operating stability of the whole structure and improving repairability of the submersible branch pipe.

5 cl, 4 dwg