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一、概况杭钢炼铁厂现有三座高炉生产正常,各项技术经济指标占全国同类企业中上水平,在1996年全国39家地方骨干钢铁企业高炉炼铁主要指标中名次排列如表1所示。就铁厂三座高炉生产情况来看。1997年1～8月的生产情况显示为3号高炉生产较稳定,指标较理想,尤其是5月份生产更为突出。在原料基本相同的条件下,3号高炉取得了炉况顺行,综合指标领先的好成绩。详见表2。由表3可以看出,在金属附加物减少、入炉矿品位降低的情况下,实际入炉焦比降低9kg/t。二、分析影响高炉焦比的因素是多方面的综合作用的结果。现按上述诸多因素,根据杭钢高炉生产调整法则经验值,分析结果列入表4。
First, an overview Hangzhou Iron and Steel Works existing blast furnace normal production of three, the technical and economic indicators of the country in the same class of enterprises in the same level, in 1996 the country’s 39 major local iron and steel enterprises in the blast furnace iron and its main indicators ranked in Table 1 Show. Three ironworks on the blast furnace production situation. From January to August 1997, the production showed that the No. 3 blast furnace produced more stable and the index was more satisfactory, especially the production in May was even more prominent. In the same basic conditions of raw materials, No. 3 blast furnace achieved a smooth go, comprehensive index leading good results. See Table 2 for details. As can be seen from Table 3, in the reduction of metal addendum, into the furnace ore grade reduced circumstances, the actual reduction of coke ratio 9kg / t. Second, the analysis of factors affecting the blast furnace coke ratio is the result of many comprehensive effects. Now many of the above factors, according to Hanggang blast furnace production adjustment rule experience, analysis results are listed in Table 4.