由于能源结构的改变,国内外部在试探自然循环的新途径。高炉炼铁采用汽化冷却在国内外都有成功的经验,也有失败的教训,但至今推广的难度很大,其主要原因是:除了对成功与失败不能作出正确的总结以外,当前更重要的是缺少系统性 Due to changes in the energy structure, domestic and foreign countries are exploring new ways of natural circulation. The use of evaporative cooling in blast furnace ironmaking has both successful experience at home and abroad and lessons from failure. However, it has been difficult to promote so far. The main reason is that in addition to failing to make a correct summary of successes and failures, what is currently more important is that Lack of systemic