Furnace atmosphere reforming catalystic agitator

Details Furnace atmosphere reforming catalystic agitator Furnace atmosphere reforming catalystic agitator

1990-07-02

1992-03-24

Andrews, Melvyn J.

Metallurgical apparatus

With means treating or handling gases exhausted by treating...

By separating particles from evolved gas

C21D 106

Patent

active

050980700

ABSTRACT:
A gas agitator for reforming a furnace atmosphere in a continuous heat treatment furnace. Rotary vanes of the agitator induces the furnace atmosphere toward the center of rotation of the vanes, due to a negative pressure produced by the rotation of vanes. Additive gas for reforming the atmosphere in the furnace is also introduced to said center. The atmosphere and additive gases are mixed with each other at once when the additive gas is introduced into the furnace, and radially ejected to contact with an annular catalyst agent. The annular inner surface of catalyst agent is located closely to rotary locus of the vanes, so that the mixed atmosphere and additive gases can come into immediate contact with the catalyst. The catalyst agent has no bottom, so that the furnace atmosphere is freely induced to the center of rotation of vanes, on account of the aforementioned negative pressure generated at and about said center.

REFERENCES:
patent: 4294436 (1981-10-01), Takahashi

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