介绍了焦炉煤气竖炉直接还原铁工艺,在分析气基竖炉生产直接还原铁技术的市场前景基础上,从成本、盈亏平衡、敏感性等方面对焦炉煤气竖炉直接还原铁工艺进行了技术经济分析,提出了降低生产成本的建议,即:廉价的原料气、能源介质,搞好综合利用,回收有用资源,选择合适的规模等。 Based on the analysis of the market prospect of direct reduction iron (FGD) technology in gas-fired shaft furnace, the direct reduction process of coke oven gas shaft furnace was carried out in the aspects of cost, breakeven, sensitivity and so on According to the technical and economic analysis, suggestions on reducing production costs are put forward, namely, low-cost raw gas and energy medium, a good utilization of comprehensive utilization, recovery of useful resources and selection of a suitable scale.