Apparatus for producing protective gas

Details Apparatus for producing protective gas Apparatus for producing protective gas

1975-04-11

1976-12-14

Wolk, Morris O.

Chemistry: physical processes

Physical processes

Crystallization

261109, 266147, 266156, B01J 700, F27D 1700

Patent

active

039972992

ABSTRACT:
Apparatus for producing protective reducer gas, for use in plant having main and auxiliary burners for burning liquid or gaseous fuels, and designed either for heating purposes or for ore reduction processes. The apparatus includes a common cooling chamber into which the hot waste gases from the main and/or auxiliary burners can be fed selectively, the auxiliary burner being located immediately above the chamber with a combustion pipe extending downwards into the cooling chamber. Cooling water is injected directly into the upper part of the cooling chamber and withdrawn from the lower end. The waste gases from the main burner are admitted through a pipe terminating between the levels of two outlets in a side wall of the cooling chamber, the lower one having a valve closure, to control the level of the cooling water and so form a water seal for the waste gas inlet. The protective gas outlet is in the upper part of the cooling chamber.

REFERENCES:
patent: 762721 (1904-06-01), Hume
patent: 3088812 (1963-05-01), Bitterlich et al.
patent: 3187765 (1965-06-01), Frank et al.
patent: 3208830 (1965-09-01), Knight et al.
patent: 3406098 (1968-10-01), Humez et al.
patent: 3764123 (1973-10-01), Beggs et al.

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