Burner for generating soot and furnace to deposit soot by using

Details Burner for generating soot and furnace to deposit soot by using Burner for generating soot and furnace to deposit soot by using

1992-03-27

1993-08-24

Kastler, Scott

Metallurgical apparatus

Means treating a continuum of work

With heating means

432149, C21D 956

Patent

active

052382290

ABSTRACT:
Prior to annealing of cold rolled stainless steel strip, soot is deposited on the surface of the stainless steel strip by a soot generating burner, and thereby the heat absorption efficiency of the stainless steel strip in the annealing furnace is increased to enhance the heat treatment capability in the annealing furnace. This soot generating burner forms a flame by injecting a premixed gas at low air ratio of fuel gas and pure oxygen or high oxygen enriched air from the nozzle opening, and an air injection port for injecting air for guiding the flame is formed on the outer circumference of the nozzle opening. By this guide air, the flame is guided to form, so to speak, an air curtain, and it is therefore possible to direct the flame efficiently to the surface of the stainless steel strip, thereby preventing the soot from depositing near the nozzle opening.

REFERENCES:
Patent Abstracts of Japan, vol. 14, No. 300 (M-991) 28 Jun. 1990 & JP-A-02 097 812 (Chugai) *abstract*.
Patent Abstracts of Japan, vol. 10, No. 203 (C-360) 16 Jul. 1986 & JP-A-61 044 728 (Hitachi) *abstract*.
Patent Abstracts of Japan, vol. 4, No. 190 (C-37) 26 Dec. 1980 & JP-A-55 128 529 (Nippon Steel) *abstract*.
Patent Abstracts of Japan, vol. 14, No. 304 (C-734) 29 Jun. 1990 & JP-A-02 101 123 (Chugai) *abstract*.

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