Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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Filing date
Publication date
Application filed by Nippon Steel CorpfiledCriticalNippon Steel Corp
Priority to JP8218777ApriorityCriticalpatent/JPS5417308A/en
Publication of JPS5417308ApublicationCriticalpatent/JPS5417308A/en
PURPOSE: To prevent the stress corrosion cracking of the iron shell of a hot stove due to NOx by suitably blowing part of compressed air used as a blast for a blast furnace into the space between the shell and refractory in the periods of combustion and pressurization of the stove.