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生铁目前主要是用高炉生产,高炉生产中重要的原料之一是焦炭。占世界存储量10％的炼焦轧的十分紧缺,甘年后,将由于炼焦煤资源的枯遏,而迫使大批焦炉停产。也使大批高炉炼铁无法生产。熔融还原炼铁新工艺,必将替代高炉炼铁而得很大的发展。 熔融还原炼铁是直接用煤作为热源和还原剂,还原铁矿生产铁水的工艺,与高炉炼铁比较有如下
Pig iron is currently mainly used in blast furnace production, blast furnace production is one of the important raw materials for coke. Coking and rolling, which accounts for 10% of the world’s storage, is in short supply. After a lapse of a few years, a large number of coke ovens will be forced out of production due to the repression of coking coal resources. Also make a large number of blast furnace can not produce iron. Smelting reduction ironmaking new technology, will replace the blast furnace ironmaking and great development. Smelting reduction ironmaking is the direct use of coal as a heat source and reducing agent, reducing iron ore production process of molten iron, and blast furnace ironmaking are as follows