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首页> 外文期刊>ISIJ international >Reduction Behavior of Carbon Composite Iron Ore Hot Briquette in Shaft Furnace and Scope on Blast Furnace Performance Reinforcement
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Reduction Behavior of Carbon Composite Iron Ore Hot Briquette in Shaft Furnace and Scope on Blast Furnace Performance Reinforcement

机译：碳素铁矿石热块在竖炉中的还原行为及范围对高炉性能的增强

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摘要

The reduction and melting behavior of carbon composite iron ore hot briquette in shaft furnace are discussed. As these agglomerates are made by the use of thermal plasticity of coal, the reduction rate by chain reactions in interface between ore and coal could be increased. The carbon composite iron ore hot briquettes achieve 95 percent reduction degree in about 10-min descent time to the 1100 deg C heat reserve zone bottom end and the drop of molten iron temperature is kept to 20 deg C. As a result, it is expected that these new agglomerates could decrease the fuel rate and discharging amount of CO_2 as well as have a possibility of extension of furnace life. Finally the paper ends by shaping the future of blast furnace on environmental phases for the new century. Especially, it is expected that carbon composite iron ore hot briquette lowers temperature of heat reserve zone and shortens the length, suggesting the possibility of shortening of the reserve zone (inactivity zone), that is, shortening of the blast furnace height.
机译：讨论了竖炉中碳复合铁矿石热块的还原和熔融行为。由于这些附聚物是通过利用煤的热可塑性而制成的，因此可以提高通过矿石和煤之间的界面中的链反应进行的还原速率。碳复合铁矿石热团块在下降约10分钟的时间内达到1100℃储热区底端的还原度达到95％，铁水温度下降保持在20℃。因此，可以预期这些新的附聚物可以降低燃油费率和CO 2的排放量，并有可能延长炉子的使用寿命。最后，本文以在新世纪的环境阶段塑造高炉的未来作为结尾。尤其是，期望碳复合铁矿石热团块降低储热区的温度并缩短其长度，这提示缩短储热区（非活性区）的可能性，即缩短高炉高度。

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