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在这项研究中,对于由铁矿石和非炼焦煤混合物的核和铁矿石外壳组成的双层球团还原的试验已完成。还原试验在温度范围为1000～1200℃的等温条件下进行。所研究的参数是还原温度、碳/铁氧化物之比和还原时间。试验按统计学设计,因此,每个参数的作用和不同参数的交互作用能够定量地分析。结果表明,还原温度对还原程度的影响是最强的,其次是还原时间和碳/铁氧化物之比的影响。
In this study, tests have been completed on the reduction of bilayer pellets consisting of a core and an iron ore shell of a mixture of iron ore and non-coking coal. The reduction test is carried out at an isothermal temperature in the range of 1000 to 1200 ° C. The parameters studied were the reduction temperature, the carbon / iron oxide ratio and the reduction time. The experiments were statistically designed, so the role of each parameter and the interaction of different parameters can be quantitatively analyzed. The results show that the reduction temperature has the strongest effect on the reduction degree, followed by the reduction time and the carbon / iron oxide ratio.