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据1990年财政年度的最新统计,日本五大钢铁公司高炉平均燃料比去年为503.1kg。这表明比1989年降低3.3kg。然而,应注意的是喷入的碎煤量已迅速增加,比1989年增加18.6kg或47%。因此,焦比已净降21kg。高炉的燃料比一般受生产的生铁量和炼铁与炼钢气体平衡的综合影响。在过去几年,燃料比在500kg左右,同时喷煤量迅速增长。
According to the latest statistics for the fiscal year 1990, the average blast furnace fuel ratio of the top five Japanese steel companies was 503.1 kg last year. This shows a decrease of 3.3 kg over 1989. However, it should be noted that the amount of pulverized coal injected has increased rapidly, an increase of 18.6 kg or 47% over 1989. Therefore, the coke ratio has been a net decrease of 21kg. The blast furnace fuel ratio is generally affected by the combined effect of the amount of pig iron produced and the balance of the iron and steelmaking gases. In the past few years, the fuel ratio is about 500kg, while the amount of coal injected rapidly.