根据对参与2013年炼铁高炉技术经济指标统计的301座高炉按不同规模能力(高炉容积)进行分析,301座高炉总容积达396499米3,设备总产量32773.57万吨(占2013年重点大中型钢铁企业生铁产量61147.42万吨的53.6%),其中小于500米3高炉90座,占统计总数29.9%;500米3-999米3高炉52座,占统计总数17.28%; According to the analysis of 301 blast furnaces with different capacities (blast furnace capacity) involved in the technical and economic indexes of 2013 blast furnaces, the total capacity of 301 blast furnaces reached 396,499 m3 and the total equipment output reached 327,757,700 tons (accounting for the major and medium-sized 53.6% of the pig iron production of 611.47242 million tons by iron and steel enterprises), of which 90 are less than 500m3 and 29 are 29% of the total, 52 are 3-999m3 blast furnaces, accounting for 17.28% of the total;