一、前言多年来,钢铁工业的发展是依靠“高炉—氧气转炉法”。由于高炉内能量利用比较好,(?)比低,产量高,到目前为止,它仍然是最经济的炼铁方法。但是,它有一个缺点,就是需要比其它燃料贵得多的焦炭作燃料,随着钢铁工业的发展,日益感到结焦煤短缺,有些地方只有很少的结焦煤,因此高炉生产的发展受到限制,由于这种原困,人们对于不用焦炭的直 I. Foreword Over the years, the development of the steel industry has relied on the “blast furnace - oxygen converter method.” Due to the better use of energy in the blast furnace, lower (?) Ratio and higher production, it is by far the most economical way to make iron. However, it has the disadvantage of requiring much more expensive coke than other fuels for fuel. With the development of the steel industry, there is a growing sense of coking coal shortage and in some places very little coking coal, so the development of blast furnace production is limited. Because of this primitive sleep, people do not have coke straight