由于高炉炼铁技术经济指标良好，工艺简单，生产量大，劳动生产效率高，能耗低等优点，故这种方法生产的铁占世界铁总产量的绝大部分。而高炉的使用方法和保养方法直接影响高炉寿命，即高炉工作年限及工作质量。
高炉本体冷却系统是否正常工作，是决定一代高炉寿命的关键因素。
The cooling system of the blast furnace's identity good or not, is the crux for its life-span.
本文总结了我国高炉寿命方面存在的问题并分析了产生这些问题的主要原因。
The campaign life problem confronted with intensified blast furnace and their main causes are analysed in this paper.
实现高炉炉缸、炉底与高炉寿命同步的措施之一就是在高炉炉缸和炉底冻结一层渣铁壳。
In order to make the hearth and hearth bottom have the same life-span as that of blast furnace, one of effective measures is to form a layer of slag-metal skull on the hearth and hearth bottom.
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