MANUFACTURE OF CHROMIUM STEEL BY REFINING USING CONVERTER AND VACUUM DECARBURIZATION REFINING FURNACE

摘要

PURPOSE:To improve the efficiency of energy utilization by adding a substance contg. carbon to a converter as a heat source for melting a solid substance contg. Cr, burning generated gaseous CO, recovering it as steam, and using the recovered steam as a power source for an ejector in a vacuum decarburization refining equipment. CONSTITUTION:Cr steel is manufactured by refining using a converter and a vacuum decarburization refining equipment. A substance contg. carbon is added to the coverter as a heat source for melting a solid substance contg. Cr. Generated gaseous CO is burned in a flue of the converter, and it is recovered as steam. The recovered steam is used as a power source for an ejector in the vacuum decarburization refining equipment. Thus, the latent heat of the substance contg. carbon is used in the converter and the vacuum decarburization refining equipment.