我国大中型电弧炉炼钢技术现状调研和分析研究

通过在钢铁企业调研，收集整理了1997～2001年我国部分大中型电弧炉炼钢运行的技术经济指标数据；25家冶金企业的38台电弧炉，技术经济指标为冶炼电耗、电极消耗、出钢至出钢时间、变压器日利用系数等12项指标，共计数据2280个，采用SAS统计分析软件对数据进行了统计分析，1997～2001年全国电弧炉指标中，电耗、电极消耗逐年降低，日历作业率、变压器日利用系数逐年提高，电弧炉指标中电耗与出钢至出钢时间之间明显正相关，电耗与变压器日利用系数之间明显负相关。变压器日利用系数（Ccd）、出钢至出钢时间（t）对电耗（E）的影响显著，线性回归方程为E=428.74-4.52Ccd 0.91t。

INVESTIGATION AND ANALYSIS OF ACTUALITY OF EAF STEELMAKING TECHNOLOGY ON LARGE AND MEDIUM-SCALE FURNACES IN CHINA

The data of steel production of 38 large and medium scale EAFs in 25 Chinese companies in last five years (1997~2001) were collected. The technico economical indexes include 12 terms, such as power consumption, electrode consumption, melting time, daily utilization coefficient of transformer, etc. The general situation of large and medium scale EAF in China is given. The data were analyzed by SAS software. The power consumption and electrode consumption have been reduced from year to year, the availability of equipment and daily utilization coefficient of transformer have been increased in period from 1997 to 2001. The correlation between power consumption and melting time is distinctly positive. The correlation between power consumption and daily utilization coefficient of transformer is distinctly negative. The daily utilization coefficient of transformer (C ed ) and melting time (t) have remarkable effect on power consumption (E). The linear regression equation is E=428.74-4.52 C ed +0.91 t.