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本文研究了不同条件下含碳球团在Ｎ_２气氛中的还原过程．结果发现，球团中心的还原速度大于其边缘速度，固相反应Ｆｅ_ｘＯ_ｙ＋ｙＣ＝ｘＦｅ＋ｙＣＯ不是含碳球团还原过程的主要反应；以往的含碳球团还原过程模型不能正确地描述其反应过程．本文提出了含碳球团还原过程的新观点，并以此观点为基础建立了含碳球团还原过程模型，试验证明该模型能很好地描述含碳球团的还原过程．
In this paper, the reduction of carbon-containing pellets under N 2 atmosphere was studied. The results show that the reduction speed of the pellet center is larger than that of its edge velocity. The solid reaction Fe_xO_y + yC = xFe + yCO is not the main reaction of the reduction process of the pellet. The former pellet reduction process model can not accurately describe the reaction process. In this paper, a new viewpoint of the reduction process of carbon-containing pellets is proposed. Based on this view, a model of reduction process of carbon-containing pellets is established. The experimental results show that the model can describe the reduction process of carbon-containing pellets well.