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建立了铁矿石烧结综合模拟模型用以评价各种控制因素对烧结矿质量影响并介绍了它在烧结工业生产上的应用情况。该模型包括透气性、热分布、熔化、孔隙、矿物及质量6个子模型。利用矿石质量、烧结设备特性和操作条件的信息作为输入数据,该模型就可以预报烧结过程中的烧结矿质量、能耗、产率和其它操作性能。通过烧结杯试验和工业试验证实了预报值与观察值非常吻合。该模型被引进鹿岛烧结厂作为操作指导系统。由于模型的应用使烧结矿质量波动下降约20%,烧结总能源成本减少约6%。为在建设新烧结厂之前规划生产能力和烧结矿质量时提供了进行经济研究的可能性。从高炉的需要出发,根据烧结矿产量和质量的技术条件,应用本模型在新的烧结原料进行生产估计,可获得最佳操作条件。
A comprehensive simulation model of iron ore sintering was established to evaluate the influence of various control factors on the quality of sinter and its application in the sintering industry. The model includes six sub-models of gas permeability, heat distribution, melting, porosity, mineral and mass. Using the information of ore quality, sintering equipment characteristics and operating conditions as input data, the model can predict the sinter quality, energy consumption, yield and other operating properties during sintering. Through the sintering cup test and industrial test confirmed that the forecast value and the observed value is very consistent. The model was introduced to Kashima Sintering Plant as an operational guidance system. Due to the application of the model, the fluctuation of sinter quality is reduced by about 20%, and the total energy cost of sintering is reduced by about 6%. The possibility of economic research is provided for planning production capacity and sinter quality prior to the construction of a new sinter plant. According to the needs of blast furnace, according to the technical conditions of sinter output and quality, this model is used to estimate the production of new sinter raw material, and the best operating conditions can be obtained.