炼铁厂提煤降焦生产实践  

Production Practice on Coal Increasing and Coke Reduction in one Iron Making Plant of one Company

作　　者：卜云飞 卞卫新 曹仲勇 BU Yun-fei;BIAN Wei-xin;CAO Zhong-yong(Shaanxi Steel Group Hanzhong Iron and Steel Co.,Ltd.,Mianxian,Shaanxi 724200,China)

机构地区：[1]陕钢集团汉中钢铁有限责任公司,陕西勉县724200

出　　处：《云南冶金》2022年第6期154-160,共7页Yunnan Metallurgy

摘　　要：针对“高焦比、低煤比”的技术和成本问题,通过对制粉磨机实施改造、入炉煤粉细度攻关、煤粉结构调整优化、稳定入炉焦炭质量、逐步优化高炉操作参数等措施,焦比降低≤370 kg/t,煤比提升≥155 kg/t上,综合燃料成本同比降低41元/t。One iron-making plant of one Company has the " high coke proportion, low coal proportion " technology and cost problem, therefore, improvements of mill, technological breakthrough of feeding coal powder fineness, adjustment and optimization of pulverized coal structure, stabilization of feeding coke quality, optimization of operation parameters of blast furnace step by step and the other measures were carried out;the coke proportion was decreased below 370 kg/t, the coal proportion was increased more than 155 kg/t,the comprehensive fuel cost were ￥41 Yuan/t lower than they had been a year earlier.

关 键 词：炉料质量 煤粉细度 操作参数 

分 类 号：TF58[冶金工程—钢铁冶金]