FIELD: melting furnace.
SUBSTANCE: invention relates to design of a notch of a blast furnace for production of cast iron. Device comprises heat-resistant bricks located along the inner side of the furnace casing, a cylindrical housing passing through the furnace casing and directed to the heat-resistant bricks, and an annular sealing assembly located on the end of the housing near the heat-resistant bricks and containing the housing seal. Herewith the housing seal is arranged to provide an airtight seal of the housing along its periphery, and the seal of bricks - to provide an airtight seal of bricks along the entire periphery between the heat-resistance bricks and the sealing assembly.
EFFECT: invention is aimed at elimination of gas leaks at the outlet of liquid cast iron.
6 cl, 8 dwg
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