Discussing on Technique of High Efficient and Long Lifetime for 4# BF at PZH Steel
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摘要: 攀钢四高炉第一代炉役无中修生产14年6个月6天,单位容积产铁量为9 367.2 t/m3,最高的年均利用系数超过了2.3 t/(m3·d)。高炉的高效长寿生产,除了受设计、装备水平影响外,与炉料条件、高炉操作、日常维护等也密切相关。为了进一步提高钒钛磁铁矿冶炼水平,从炉料条件、高炉操作、日常维护等几方面对攀钢四号高炉第一代炉役实现高效长寿生产的有益经验进行了总结。认为:精料工作、长期稳定顺行的操作及炉役中后期对高炉冷却设备和炉体的及时维护是高效长寿生产的重要保障。Abstract: The first campaign of 4# BF(blast furnace) at PZH Steel lasted for 5 296 days without intermediate relined,the unit yield of iron was 9 367.2 t/m3 and highest yearly average productivity exceeded 2.3 t/(m3·d).The high efficient and long production life of BF was related to furnace burden,operation,daily upkeep and so on.The operation factors effecting the availability coefficient and long production life of 4# BF at PZH Steel were discussed.It was concluded that beneficiated burden material,long-term steady operation and regular performance,timely maintenance of furnace and cooling equipment during the post-medium campaign were the important experience for ensure high efficient and long lifetime of blast furnace.
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Key words:
- blast furnace /
- high efficient /
- long lifetime
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