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首都钢铁公司新二高炉是在旧高炉厂区进行的一项更新改造工程。旧二高炉原是日本釜山制铁所1929年建造的,使用十几年后再迁建到我国。解放后虽经大修改造,但由于工艺设备已很陈旧,有效容积仅516m~3,因此利用系数只达1.4,焦比高于600kg,指标很落后。且烟熏火燎,环境恶劣,设备磨损腐蚀很严重,钢壳梁架已处于危险状态。因此,于77年年中开始改建,只用八个月就完成新二高炉的设计,79年12月点火投产。80年利用系数达1.734,焦比降为485kg,综合焦比降为539kg,喷煤比达到 68.6kg。81年高炉利用系数已稳定在 2
Capital Iron and Steel Company II is the blast furnace in the old blast furnace plant in a renovation project. The old second blast furnace was originally built by Busan Iron & Steel Co., Japan in 1929 and relocated to our country after more than ten years. Although after the liberation of overhaul transformation, but the process equipment is very old, the effective volume of only 516m ~ 3, so the utilization factor of only 1.4, coke higher than 600kg, the index is very backward. And smoky, harsh environment, equipment wear and tear corrosion is very serious, the steel beam has been in danger. Therefore, the reconstruction started in mid-1977 and the design of the new No.2 blast furnace was completed in only eight months. The project was put into operation in December 1979. 80 years utilization factor of 1.734, coke ratio reduced to 485kg, coke ratio dropped to 539kg, PCI ratio reached 68.6kg. 81 years blast furnace utilization factor has stabilized at 2