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一、概况十年以前日本轧钢加热炉的燃料单耗一般均在0.5×10~6kcal/T以上,在此期间由于二次石油危机的形势所逼和努力节能的结果,到1981年轧钢加热炉的燃料单耗已降低到0.3×× x 106kcal/T左右,而且由于正在普及热装和直接轧制,这些加热炉的燃料单耗已出现了低于0.1～0.2×10~6kcal/T的水平,所以全日本轧钢加热炉的燃料单耗还有不断下降的趋势。如以日本配合热轧带钢轧机的加热炉为例,燃料单耗逐年下降的情况见图
First, an overview of ten years ago, Japan’s steel rolling furnace fuel consumption are generally 0.5 × 10 ~ 6kcal / T or more during this period due to the situation of the secondary oil crisis forced and energy-saving results, to the rolling furnace in 1981 Fuel unit consumption has been reduced to about 0.3 ××106kcal / T, and because of the popularity of hot-rolled and direct rolling, the fuel consumption of these furnaces have emerged below the level of 0.1 ~ 0.2 × 10 ~ 6kcal / T , So all-Japan steel rolling furnace fuel consumption there is a declining trend. Take Japan as an example of a heating furnace for a hot strip mill, the situation that the unit consumption of fuel drops year by year is shown in the figure