首钢高炉高风温关键技术研究.pdfVIP

首钢高炉高风温关键技术研究 1 1 2 3 2 陈冠军 马泽军 马金芳 张卫东 蔡景春 （1. 首钢技术研究院，北京 100043 ；2. 河北迁安钢铁有限责任公司，迁安 064404 ； 3. 首钢京唐钢铁联合有限责任公司，唐山 063200 ） 摘 要 近年中国钢铁工业发展迅猛，产量和总能耗增加，是工业节能重点，其中高炉是其节能的重点，高炉高风 温具有降低焦比、降低燃料比和降低生产成本等作用，是炼铁节能关键技术。首钢通过热风炉高风温、热风管道高 风温输送和高炉高风温操作三项关键技术实现最高风温。研究表明，干法除尘有利于提高煤气热值、温度等，为高 风温提高基础；采取全烧高炉煤气、高温空气燃烧预热技术有效确保了1280~1300℃高风温；自动燃烧智能控制保 证高效燃烧与换炉；通过拱顶涂层提高炉顶温度；热风管道合理布置与监控确保了送风安全；高炉精料、富氧喷煤 和合理煤气流等高炉操作保证了高风温下高炉稳定顺行。同时实现了高风温关键技术在大型高炉上应用与实施。 关键词 高炉 热风炉 高风温 操作 Key Technologies of High Blast Temperature on Shougang’s Blast Furnace Chen Guanjun1 Ma Zejun1 Ma Jinfang2 Zhang Weidong3 Cai Jingchun2 (1.Shougang Research Institute of Technology,Beijing,100043;2.Qian’an steel Limited Corp.,Qianan,064404;3.Shougang Jingtang United Iron ＆ Steel Limited Corp.,Tangshan,063200) Abstract Steel industry is the emphases of industry, as it develops rapidly with the increase of overall production and energy consumption, the emphases of which is BF, high blast temperature is the key energy-saving technology, which has the effect of lowering coke-ratio, fuel-ratio and product cost. High blast temperature is reached by three key technologies such as high temperature stove, high temperature pipe and high temperature operation of BF. It shows that dry de-dusting has the performance of improving gas heat value and temperature, it reaches high blast temperature about 1280~1300℃ with gas-fully-burnt, intelligence control of auto-combustion assures high efficient combustion and shift, vale temperature is improved by coaling, safe blast is assured by rational structure and monitoring, operations of BF assure its