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1998年1～6月份,济钢第三炼铁厂四座高炉(3×120m~3+1×100m~3)共产合格生铁223126t,利用系数达到2.75t/m~3·d,入炉焦比527k/t,喷煤比为82kg/t,入炉品位57.91%,风温960℃。休风率0.58%。主要技术经济指标均创历史最好水平,三炼铁重点做了如下工作。 1 提高烧结矿质量,降低人炉料含粉率三炼铁33m~2烧结机原采用煤粉点火,自1997年下半年改用高炉煤气点火后,烧结矿质量逐步提高。特别是进入1998年,三炼铁狠抓工艺操作,优化烧结料的配比,选出最佳配料结构,使烧结矿质量大幅度提高。烧
From January to June 1998, a total of 223,126t of qualified pig iron was produced from four blast furnaces (3 × 120m ~ 3 + 1 × 100m ~ 3) of the third ironworks of Jinan Iron and Steel Co., Ltd., with a utilization coefficient of 2.75t / m ~ 3 · d, 527k / t, coal injection rate of 82kg / t, into the furnace grade 57.91%, the air temperature 960 ℃. Hugh rate of 0.58%. The main technical and economic indicators have hit the best level in history, and the focus of the three iron refineries has done the following work. 1 to improve the quality of sinter, reduce the rate of people charge three iron smelting iron 33m ~ 2 sintering machine used coal ignition, since the second half of 1997 switched to blast furnace gas ignition, sinter quality gradually increased. Especially into 1998, three iron and steel pay close attention to process operation, optimize the ratio of sintering materials, select the best ingredients structure, the quality of sinter greatly improved. burn