摘要
近年来，我国高炉大型化发展进程加快，高炉工艺技术装备水平迅速提升。一系列我国自主集成创新的工艺、技术和装备在新建的大型高炉上得到应用，取得了显著的应用效果。自行设计研制的大型高炉无料钟炉顶设备经过20余年的发展创新，在设备可靠性、使用寿命等方面达到国际先进水平；自主开发的高炉煤气全干式布袋脉冲除尘工艺，在系统优化设计、煤气温度控制、除尘灰气力输送等方面取得技术突破；集成创新的高效长寿高风温技术，通过开发应用助燃空气高温预热技术、提高热风炉传热效率、热风炉系统结构优化等措施，在使用高炉煤气燃烧的条件下，风温达到1250℃。
In recent years great progress is made in technical equipment of large blast furnace in Chi- na. A series of new process, technologies and equipment, integrated and developed on our own, are applied on newly built large blast furnaces and have been proved to be highly effective. After more than 20 years＇de- velopment and innovation of the bell - less top equipment designed and developed on our own, it has reached the advanced level in the world in terms of equipment reliability and service life ; fully - dry dedusting technol- ogy of BF gas by impulse bag filter, which is also developed on our own, has gained technical breakthroughs in terms of optimized system design, gas temperature control, pneumatic conveying of dedusting fines ; the integrated innovative high - efficiency long - life high - temperature technology, through applying high - temper- ature preheating technology of combustion air, improving heat transfer efficiency of hot blast stove and optimizing structure of the hot blast stove system, enables the air temperature to reach 1, 250℃ with blast furnace gas as fuel.
关键词
高炉
炼铁
无料钟炉顶
热风炉
干式布袋除尘
blast furnace
iron - making
bell - less top system
hot stove
dry - type bag dust collector
