材料期刊网

本文介绍了首钢京唐钢铁厂5500m3高炉设计特点和采用的先进技术。高炉设计中采用合理炉料结构、炉料分级入炉技术；自主设计开发了并罐式无料钟炉顶设备炉料分布控制技术；采用纯水密闭循环冷却、铜冷却壁、薄壁内衬等高炉综合长寿技术，高炉设计寿命25年；采用高风温顶燃式热风炉和助燃空气高温预热技术，设计风温1300℃；采用平坦化出铁场和铁水直接运输工艺、环保型螺旋法渣处理工艺；设计开发了特大型高炉煤气全干法布袋除尘技术；采用并罐式浓相喷煤技术；设计了完备的自动化检测和控制系统以及环境除尘系统，使高炉生产实现“高效、低耗、长寿、清洁”的目标。

In combination with the development of iron-making technology with extra-large blast furnaces in China and abroad, analysis is made on the development tendency of modern BF iron-making technique and the author raises the development objectives of modernized technology, large-scale equipment, intensive production, recycling resources and energy media and optimized economic benefits. In the paper description is given to the technical features and advanced technologies of the extra-large blast furnace in Shougang Jingtang Iron & Steel Co., Ltd. Also introduction is made to BF sinter charging by different fraction sizes, bell-less top equipment and control technology of burden distribution, high-efficiency long-service-life technology of blast furnace, high blast temperature with long service life technology of hot stove, environment-friendly slag treatment technology, oxygen-enrichment pulverized coal injection technology and BF gas dry bag filter dedusting technology that are applied on the 5500m3 blast furnace in Shougang Jingtang Iron & Steel Co., Ltd.