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引言川崎钢铁公司千叶钢铁厂的一座大型无料钟高炉,6号高炉(炉膛直径14.1米,容量4500立方米)于1977年6月17日开炉生产。在高炉投产的日子里,油价相对来讲比煤价低,所以,用直接喷油法降低燃料消耗率既可节能,又降低了成本。在此情况下,高炉生产采用直接喷油法以最大程度地降低燃料消耗率是主要课题。另一方面,自从第二次石油危机以来,由于石油涨价,我们又被迫转向全部使用焦炭生产,以下简称全焦生产。中断
Introduction A large bell-less blast furnace at Chiba Mills’ Chiba Plant, No. 6 blast furnace (furnace diameter 14.1 meters and capacity 4500 cubic meters) was started on June 17, 1977. In the days when the blast furnace was put into operation, the price of oil was relatively lower than that of coal. Therefore, reducing the fuel consumption rate by direct fuel injection can save energy and reduce costs. Under such circumstances, it is a major issue that blast furnace production uses a direct fuel injection method to minimize fuel consumption. On the other hand, since the second oil crisis, we have been forced to shift to full use of coke production due to oil price hikes, hereinafter referred to as full coke production. Interrupted