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Application filed by Centre Rech MetallurgiquefiledCriticalCentre Rech Metallurgique
Publication of BE751780ApublicationCriticalpatent/BE751780A/en
C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
C21C5/28—Manufacture of steel in the converter
C21C5/30—Regulating or controlling the blowing
C21C5/34—Blowing through the bath
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Metallurgy
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Organic Chemistry
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Carbon Steel Or Casting Steel Manufacturing
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Abstract
The bottom of the converter has a blast pipe consisting of two concentric tubes. The inner tube is used for blowing a highly oxidising gas or pure oxygen, and a cooling fluid is blown through the outer tube. The quantity of cooling fluid blown in is such, that the heat absorbed by it up to 1300 degrees C is between 220 and 350 k. Cal/Nm3 of O2 blown in, between 250 and 300 kCAl./Nm3.
BE751780D1970-06-101970-06-10Refining cast iron by blowing in oxidizing gas - through the bottom of a converter
BE751780A
(en)