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近年来,为了节省能源,根据鞍钢的条件,采用高炉铁水直接浇铸轧辊和钢锭模的工艺。经过探索,于1986年找到了炉外增锰的措施,每年可节省冶金焦炭1万余吨,锰铁块1440t,同时简化了轧辊厂原有冲天炉化铁的工艺,效益可观。文中介绍了炉外增锰的方法,对高炉冶炼中锰铁和炉外增锰进行经济效益的全面分析,分析结果,公司可增加经济效益470万元/a。
In recent years, in order to save energy, according to Anshan Iron and Steel’s conditions, the use of blast furnace hot metal directly casting rolls and ingot mold process. After exploration, in 1986 to find a measure of manganese addition to the furnace, each year can save more than 10,000 tons of metallurgical coke, ferromanganese 1440t, while simplifying the roller mill original Cupola process, considerable benefits. This paper introduces the method of adding manganese outside the furnace, and analyzes the economic benefits of ferromanganese in blast furnace smelting and manganese addition outside the furnace. As a result of the analysis, the company can increase economic benefits by 4.7 million yuan / a.