三年的生产实践表明,从技术经济上看宝钢的配矿方案并不是很理想的。一方面其主矿源一半以上为巴西矿;另一方面副原料熔剂每年需用数以10万吨计的SiO_2。因此石灰石用量增多,高炉渣量增大和焦比升高。同时还使烧结矿的含硅量高,碱度低,成分波动大。本文对此作了分析,并提出改进的意见。 Three years of production practice shows that from the technical and economic point of view Baosteel with ore program is not very satisfactory. On the one hand, more than half of its main ore sources are Brazilian mines; on the other hand, the secondary raw material fluxes need to use up to 100,000 tons of SiO 2 per year. Therefore, the amount of limestone increased, the blast furnace slag increased and the coke ratio increased. At the same time also make sinter high silicon content, low alkalinity, composition fluctuations. This article has made the analysis, and put forward the improvement opinion.