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1 前言洛阳钢厂ф550×2轧机是专门负责为本厂两个线材车间提供原料的开坯车间,年产量约23万吨钢坯,主要规格为73~2毫米和60~2毫米螺纹钢,所用加热设备为端出料三段式推钢加热炉。近几年来,曾多次进行节能技术改造,燃耗逐年下降,到1990年底平均单耗为47.7公斤/吨坯,达到全国中上水平。随着轧制工艺的改进、生产率的不断提高及节能的需要,为进一步提高炉子热效率,降低
1 Foreword Luoyang Iron and Steel ф550 × 2 mill is specifically responsible for the factory two wire shop to provide raw materials Bilubian workshop, annual output of about 230,000 tons of billets, the main specifications for the 73 ~ 2 mm and 60 ~ 2 mm rebar, used Heating equipment for the end of the three-section push steel furnace. In recent years, many energy-saving technological transformation, fuel consumption decreased year by year, by the end of 1990 the average unit consumption of 47.7 kg / ton billet, reaching the national level. With the improvement of rolling process, continuous improvement of productivity and the need of energy saving, in order to further improve the thermal efficiency of the furnace and reduce