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熔融还原炼铁法是一种先进的炼铁方法,由于本方法可直接用煤来炼铁,因此可以不修建炼焦和烧结两个工厂,大量缩减了设备投资费用和人工费,使铁水成本至少降低10～20%。而且,用本方法生产的铁水量可调范围>±50%,设备的操作中止、再开也容易,可按市场需求状况机动地生产廉价铁水。本文重点介绍了瑞典、联邦德国、日本等国家在开发熔融还原炼铁法方面的进展情况、采取的具体方法等,可供借鉴。
The smelting reduction ironmaking method is an advanced ironmaking method. Since this method can directly use coal for ironmaking, it is possible to reduce the capital investment and labor costs of the two plants by a large amount without reducing the capital cost of the hot metal Reduce 10 ~ 20%. Moreover, the amount of molten iron produced by this method can be adjusted within the range of ± 50%, the operation of the equipment is stopped, the reopening is easy, and the cheap hot metal can be maneuvered according to the market demand. This article focuses on Sweden, the Federal Republic of Germany, Japan and other countries in the development of smelting reduction ironmaking progress, the specific methods taken for reference.