高炉炼铁是资源、能源的消耗大户，节能潜力巨大。铁焦是一种高反应性焦炭，将合适粒度和数量的铁焦与含铁炉料混装入炉，从理论上说具有降低焦比，取得节约稀缺炼焦煤资源和降低生产成本的潜力。对混合试样的还原机理进行了分析，并对铁焦与人造富矿的耦合反应进行了实验室研究，证明混入铁焦对烧结矿和球团矿的还原反应有明显的促进作用，提高温度和增加铁焦用量对提高铁矿石的还原度有利。
The blast furnace ironmaking process needs a large number of resources and energy with a great energy saving potential. Iron coke is a highly reactive coke. Iron coke with the appropriate size and amount are mixed with ferrous bur-den and then charged into the blast furnace. It can lower coke rate theoretically, save scarce coking coal resources and re-duce the production cost. The reduction mechanism of the mixed sample is analyzed and the coupling-reaction of iron coke and agglomerates is researched in laboratory, confirming that the mixing of iron coke has an obvious promotion ef-fect on the reduction reaction of sinter and pellets. And increase of temperature and iron coke consumption are benefit for the improvement of iron ores reduction degree.
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