日本钢管公司已开发出一种新型高炉炼铁工艺。采用这种工艺冶炼时,以常温氧气取代热鼓风通过高炉风口喷入炉内,同时还在炉身上部向炉内喷吹预热煤气。为了开发这一新型炼铁工艺,现已利用一座试验高炉进行了数学模拟和操作试验。操作试验时炉况稳定,经技术鉴定符合炼铁 Japanese steel pipe company has developed a new blast furnace ironmaking process. Smelting using this process, the oxygen at room temperature to replace hot blast blast furnace tuyere injection into the furnace, while still in the upper part of the furnace to the furnace blowing preheated gas. In order to develop this new ironmaking process, a test blast furnace has been used to conduct mathematical simulations and operational tests. Operational stability of the furnace test, the technical identification of iron-making