日钢大型高炉经济炼铁技术的应用效果  

Application of Economic Ironmaking Technology in Rizhao Steel Large-sized BF

作　　者：臧向阳[1] 罗力 常凯 ZANG Xiangyang;LUO Li;CHANG Kai(Rizhao Iron&Steel Holding Group Co.,Ltd.,Rizhao 276800,Shandong,China)

机构地区：[1]日照钢铁控股集团有限公司,山东日照276800

出　　处：《炼铁》2024年第3期28-34,共7页Ironmaking

摘　　要：经济炼铁是基于系统集成的炼铁技术,运用经营理念指导炼铁生产实践,从而实现炼铁的经营目标。日钢根据自身的原燃料条件和技术经验,在新建3000m高炉时,对炉型设计充分优化,并创新性地把各系统先进技术进行集成应用,为高炉经济开炉及经济运行打下了良好基础。通过采取保障原燃料质量、控制合理的煤气流分布、活跃炉缸、优化渣相等措施,高炉实现了经济冶炼条件下炉况长期稳定顺行,生铁成本优势明显。2023年1-8月,对比沿江沿海25家钢企同类高炉综合生铁成本,日钢大型高炉生铁成本领先82元/t。Economic ironmaking technology is developed based on the system integration.It provides guidance for the iron-making production based on the theory of business,so as to hit the business target of ironmaking.When building a new 3000 m'BF,Rizhao Steel optimizes the design of the furnace inner profile,and innovatively integrates the cutting-edge technolo-gies of different systems on the ground of its own raw material and fuel conditions and technical experience.Such an effort sets the stage for the economic blow-on operation and economic running of the furnace.By managing the quality of raw mate-rial and fuel,controlling gas flow distribution,activating furnace hearth,and optimizing slag phase,the furnace achieves long-term stable and smooth running under the economic smelting condition,and the production cost is reduced significantly.From January to August 2023,the comprehensive hot metal production cost of Rizhao Steel large-sized blast furnaces is 82 yuan/t less than that of the similar blast furnaces operated by domestic 25 steel producers.

关 键 词：大型高炉 经济炼铁 原燃料 炉型设计 煤气流分布 生铁成本 

分 类 号：TF53[冶金工程—钢铁冶金]