Heating – Heating or heat retaining work chamber structure – Protected – lined or reinforced melt holding section
Patent
1984-05-21
1986-01-21
Yuen, Henry C.
Heating
Heating or heat retaining work chamber structure
Protected, lined or reinforced melt holding section
432252, 432250, 266196, 266197, F27B 1408
Patent
active
045655251
ABSTRACT:
In a shaft furnace having a metal shell, a refractory furnace lining inside the shell and a taphole construction comprising a drilled taphole extending through a plug located in an aperture in the shell and a taphole brick structure forming part of said furnace lining, the taphole brick structure at least partly consists of at least one taphole brick of high thermal conductivity material selected from the group comprising graphite, semi-graphite and material of equivalent heat conductivity, there further being screening means comprising material of substantially lower heat conductivity coefficient than graphite and semi-graphite located between said taphole brick and said furnace shell.
REFERENCES:
patent: 1995941 (1935-03-01), Pugh
patent: 2206944 (1940-07-01), Danforth, Jr.
patent: 2293332 (1942-08-01), Dow et al.
patent: 3190626 (1965-06-01), Schwabe et al.
patent: 3752638 (1973-08-01), Van Laar et al.
patent: 4371334 (1983-02-01), Van Laar
Butter Jahannes A.M.
Felthuis Jacob
Rengersen Jacob
Sannes Albert
van Laar Jacobus
Hoogovens Groep B.V.
Yuen Henry C.
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