Process for reducing dust emissions of a blast furnace

Details Process for reducing dust emissions of a blast furnace Process for reducing dust emissions of a blast furnace

1995-06-07

1997-11-04

Kastler, Scott

Metallurgical apparatus

Process

Plugging or tapping

266196, 222603, C21B 712, C21B 714

Patent

active

056836520

ABSTRACT:
A process for reducing dust emission and free air access in the tapping region of a blast furnace by applying CO.sub.2 in a solid and/or gaseous state to the molten material and or the runners and vessels associated therewith. This process reduces dust emissions, nitriding of the product and energy costs associated with conventional dust reduction operations as well as wear of the refractory materials.

REFERENCES:
patent: 4666511 (1987-05-01), Naud
patent: 4723997 (1988-02-01), Lutgen
Stahl und Eisen, vol. 103, Nr. 8, 25 Apr. 1983, p. 394, Dusseldorf, Germany; "Verringerung der Stickstoffaufnahme von flussigem Stahl in der Pfanne" (Reduction of nitrogen uptake of liquid steel in the ladle) with translation.

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