Taphole construction of a shaft furnace

Details Taphole construction of a shaft furnace Taphole construction of a shaft furnace

F - Mech Eng,Light,Heat,Weapons

27

B

39/98

F27B 1/21 (2006.01) C21B 7/12 (2006.01)

Patent

CA 1221234

-15- TAPHOLE CONSTRUCTION OF A SHAFT FURNACE ABSTRACT OF THE DISCLOSURE 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.

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