日本川崎钢铁公司千叶6号高炉系日本首座采用无钟炉顶的大型高炉。该炉于1977年6月17日点火投产,至1993年,7月已无中修运行持续超过了16年,累计出铁量4820万吨,相当于单位有效容积产铁10700t/m以上。迄今尚未见停炉报导,现将开炉以来不同时期的操作变化介绍如下。 Japan’s Kawasaki Steel Corporation Chiba No. 6 blast furnace Japan’s first bell-shaped furnace with a large blast furnace. The furnace was put into operation on June 17, 1977 and was no longer repaired in operation for more than 16 years in 1993 and July. The accumulated amount of iron output was 48.2 million tons, equivalent to more than 10700t / m of iron production capacity per unit volume. To date, no shutdown reports have been reported. Operational changes in different periods since the start of the furnace are introduced below.