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通过数学模型分析研究了采用废气循环烧结法时，烧结料层吸入气体中的氧和水蒸气对烧结反应的影响。通过烧结杯试验，探讨了氧和水蒸气含量变化对烧结时间、成品率、烧结料层内温度波动等的影响。随着吸入氧含量的下降，烧结速度、烧结料层最高温度及成品率都下降。当增加吸入气体中的水分时，烧结料层内最高温度下降。因为水分蒸发需要时间。同时，由于烧结料层表面热量减少，使料层内水冷凝区气流阻力增大，烧结速度也下降。如果在降低氧量的同时，增加水分，由于料层表面热量减少，使料层内最高温度下降，对成品率的不良影响加剧。这时，提高气体温度可望减少这种不良影响
The influence of oxygen and water vapor in the gas sucked into the sintering bed on the sintering reaction was studied by using the mathematical model. The effect of oxygen and water vapor content on sintering time, yield and temperature fluctuation in sintered layer was discussed through sintering cup test. As the oxygen content of the inhalation decreased, the sintering speed, sintering temperature and the maximum yield decline. When increasing the moisture in the sucked gas, the maximum temperature within the sinter bed drops. Because water evaporation takes time. At the same time, due to the reduction of heat on the surface of the sintering material layer, the airflow resistance of water condensation zone in the material layer increases, and the sintering speed also decreases. If you reduce the amount of oxygen at the same time, increase the water, due to the reduction of surface layer heat, so that the maximum temperature drop in the material layer, the adverse impact on the yield increased. At this time, increasing the gas temperature is expected to reduce this adverse effect