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一、我国平炉炼钢的历史地位平炉炼钢法从1864年诞生起,至今已经123年了。前100年是平炉炼钢的大发展时期,在世界钢产量中占有主要地位。但从1952年氧气顶吹转炉问世到1964年以后,由于世界范围内氧气顶吹转炉的大发展,使平炉处于逐步被取代的地位,例如,1985年平炉钢占世界钢产量的比例,已下降到18.8%。作为一种炼钢方法来说,平炉已从先进变为落后,这是历史的进步。1985年9月美国关闭了最后一座平炉,从此,在世界先进工业国中,除苏联和东欧以外的西方工业发达国家已全部关闭了平炉。苏联和西方工业发达
First, the historical status of our hearth steelmaking Flat hearth steelmaking law from the birth of 1864, it has been 123 years. The first 100 years is a large period of open hearth steelmaking, the world’s steel production holds a dominant position. However, since the advent of oxygen top-blown converter in 1952 and after 1964, the open hearth has been gradually replaced due to the great development of oxygen top blown converter in the world. For example, the proportion of open-hearth steel in world steel production in 1985 has dropped To 18.8%. As a steelmaking method, the hearth has changed from advanced to backward, which is a historical advance. In September 1985, the United States closed the last open hearth furnace. Since then, all developed western countries except the Soviet Union and Eastern Europe have closed down the flat hearth in the advanced industrial nations of the world. The Soviet Union and western developed industries