前言1971年世界钢的总产量为63420万吨,其中约有40000万吨以上是经过轧钢加工轧成钢材的。由于轧钢机加工量大而且生产率高,因此在冶金企业中轧钢厂的用电比重最大。虽然近年来由于高炉容积的增大(每炉的容量达到4300立方米,日产量达到11000吨),加以采用加大风量和高压炉顶的工艺,鼓风机单机容量达到72000马力(目前在国外只有航空工业的 Foreword The total output of world steel in 1971 was 634.2 million tons, of which about 40 million tons were rolled and rolled into steel. As the rolling mill processing capacity and high productivity, so the metallurgical enterprises in the largest steel mill electricity consumption. Although in recent years due to the increase of blast furnace capacity (capacity of 4300 cubic meters per furnace, daily output of 11,000 tons), to increase the wind and high pressure roof technology, blowers stand-alone capacity of 72,000 horsepower (currently only aviation industrial