Gas-permeable element of a refractory material

Details Gas-permeable element of a refractory material Gas-permeable element of a refractory material

1984-12-12

1987-03-03

Rutledge, L. Dewayne

Metallurgical apparatus

Means for introducing fluent into vessel, e.g., tuyere

Having means preventing damage to introducing means, e.g.,...

266218, C21C 534

Patent

active

046470204

ABSTRACT:
A gas-permeable element of a refractory material for blowing gases into a metal treatment vessel through its lining has a body of a refractory material, a metal housing on the longitudinal sides of the refractory body, a free inner end surface at which the refractory material is exposed, an outer end surface provided with a gas distributing chamber for a gas supply, at least one local opening extending in the interior of the refractory body for a gas passage between the end surfaces and provided with a metal insert, wherein the metal insert is formed as a laterally closed small channel, the gas-distributing chamber is separated from the refractory material by a metal sheet plate, and the metal channel is tightly mounted in the metal sheet plate so that the refractory material is maintained free from loading with a gas pressure.

REFERENCES:
patent: 4238121 (1980-12-01), Harita et al.
patent: 4296921 (1981-10-01), Hayashi
patent: 4340208 (1982-07-01), Vayssiere et al.
patent: 4413815 (1983-11-01), Duhomez et al.
patent: 4539043 (1985-09-01), Miyawaki et al.

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