Abstract
根据2017年预测矿价概算，提高高Al2O3铁矿配比使高炉渣中Al2O3含量每升高0.1%，一年可降低配矿成本808万元。增加高Al2O3铁矿石的使用量将导致烧结矿和高炉炉渣Al2O3含量上升，针对高Al2O3铁矿的生产工艺，结合目前生产实绩和渣系相图等理论方面分析了Al2O3对烧结矿冶金性能和高炉冶炼的影响作用，并给出建议优化方向和调节途径。为降低实际生产采用高Al2O3冶炼时带来的负面影响、打破因Al2O3对降本的限制奠定技术基础，推动降本增效目标的实现。 According to the prediction of iron ore price in 2017, the calculation result showed that if the ratio of high Al2O3 iron ore in blended ore increased, within the content of Al2O3 in blast furnace slag increased by 0.1 percent, the cost of blended ore could reduce 8.08 million yuan per year. How- ever, the increased usage of high Al2O3 iron ore resulted in a rise of Al2O3 in sinter and blast furnace slag. In order to reduce the negative effect brought by the adoption of high Al2O3 smelting in the actual production, the influence of Al2O3 on the metallurgical properties of sinter and blast furnace smelting was analyzed and the countermeasures were given based on the present production performance and the slag phase diagrams. The realization of decreasing costs and increasing benefits was expected.
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