现代大型高炉关键技术的研究与创新

来源期刊：钢铁2009年第4期

论文作者：张福明

文章页码：1 - 5

关键词：高炉； 炼铁； 无料钟炉顶； 热风炉； 煤气干式布袋除尘

Key words：blast furnace； ironmaking； bell-less top； hot blast stove； dry big filter dedusting

摘    要：无料钟炉顶、高风温和煤气干式除尘是现代大型高炉的关键技术。自行设计研制的大型高炉无料钟炉顶设备,通过三维设计优化、仿真模拟和试验测试,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1 250℃。

Abstract: The key technologies at modern large blast furnace are bell-less top,high blast temperature and dry big filter dedusting of BF gas.Bell-less top equipment of large blast furnace designed and developed by our own has reached advanced level in the world in terms of equipment reliability and service life by 3D design optimum,simulation analysis and pilot trail;fully-dry impulse bag filter dedusting technology of BF gas,which is also developed by 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 hot blast stove technology,through applying high-temperature preheating technology of combustion air,improving heat transfer efficiency of hot blast stove and optimizing structure of the hot blast stove system,enables the blast temperature to reach 1250 ℃ with BF gas as fuel.