![]() Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Individual filed Critical Individual Priority to CN86103119A priority Critical patent/CN86103119B/en Publication of CN86103119A publication Critical patent/CN86103119A/en Publication of CN86103119B publication Critical patent/CN86103119B/en Status Expired legal-status Critical Current LinksĪ kind of downdraft method that the U.S2463733 patent provides a kind of blast furnace that is used for long-term or short-term banking to adopt when answering wind.The essential characteristic of this method is to be equipped with one to have the pipeline that cuts down Men Bingyu air port peep hole UNICOM between blast-furnace hot-air surrounding pipes and iron notch.During furnace compound wind, utilize this pipeline that combustion air is introduced iron notch and assist blowing, though this method has certain effect near the cupola well temperature of lower the raising iron mouth.But: (1) this device can only make wind be blown near the iron mouth 0.5 meter with interior bag-like region, and after blow-on during winding-up iron mouth, it is very fast that iron mouth near zone heats up, and need not make an unnecessary move when new stove blow-on.(2) this device still can not solve and eliminate hot coal air-flow dead angle area, early draws coal gas, accelerate problem such as baker speed. Original Assignee Individual Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) ![]() ( en Inventor 韩文琦 Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Withdrawn Application number CN 86103119 Other languages Chinese ( zh) ![]() Google Patents Blast furnace process to downdraftĭownload PDF Info Publication number CN86103119A CN86103119A CN 86103119 CN86103119A CN86103119A CN 86103119 A CN86103119 A CN 86103119A CN 86103119 CN86103119 CN 86103119 CN 86103119 A CN86103119 A CN 86103119A CN 86103119 A CN86103119 A CN 86103119A Authority CN China Prior art keywords blast furnace downdraft blow coke Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents CN86103119A - Blast furnace process to downdraft CN86103119A - Blast furnace process to downdraft
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