论文部分内容阅读
重钢炼铁原料条件较差,高炉设备相对也比较陈旧。“五五”期间入炉矿石品位仅39.19%,渣量1295kg/t,高炉利用系数0.811,焦比840kg,生铁合格率96.09%。“六五”期间,通过各方面的努力,生产水平有了较大提高,各项技术经济指标逐步得到改善。“六五”平均生铁产量较“五五”增长55.23%,合格率提高3.82%,焦比下降184kg/t,特别是1985年,由于矿石条件有所改善,冶炼强度有较大提高,1985年平均利用系数提高到1.432,焦比降到636kg/t,生铁合格率提高到99.97%。炼铁生产的发展为全公司的经济效益作出了贡献。总结“六五”期间的经验主要有以下几个方面。
Heavy steel iron raw material conditions are poor, blast furnace equipment is relatively old. During the “Five-year” period, the ore grade was only 39.19%, the amount of slag was 1295kg / t, the blast furnace utilization coefficient was 0.811, the coke ratio was 840kg, and the passing rate of pig iron was 96.09%. During the “6th Five-Year Plan” period, with all efforts made, the production level has been greatly improved, and various technical and economic indicators have been gradually improved. In the “Sixth Five-Year Plan” period, the average pig iron production increased by 55.23% over the “5 th Five-Year Plan”, with the qualification rate increased by 3.82% and the coke ratio decreased by 184kg / t. Especially in 1985, due to the improvement of ore conditions, the strength of smelting increased greatly. The average utilization factor increased to 1.432, coke ratio dropped to 636kg / t, pig iron pass rate increased to 99.97%. The development of ironmaking has contributed to the economic benefits of the entire company. Summarizing the “Six Five” period of experience mainly in the following areas.